MGC-50/MGC-100 Hardware & Installation Manual Version 9.
Copyright © 2007 Polycom, Inc. All Rights Reserved Catalog No. DOC2193A Version 9.0 Proprietary and Confidential The information contained herein is the sole intellectual property of Polycom, Inc. No distribution, reproduction or unauthorized use of these materials is permitted without the expressed written consent of Polycom, Inc. Information contained herein is subject to change without notice and does not represent a commitment of any type on the part of Polycom, Inc.
Regulatory Notices United States Federal Communication Commission (FCC) Part 15: Class A Statement. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. Test limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Regulatory Notices electrical ground connections of the power utility, telephone lines and internal metallic water pipe system, if present, are connected together. This precaution may be particularly important in rural areas. Caution: Users should not attempt to make such connections themselves, but should contact the appropriate electric inspection authority, or electrician, as appropriate.
MGC Hardware and Installation Guide Table of Contents Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 MGC Unit Main Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 MGC-50/MGC-100 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Connecting the MGC-50 to the Operator Workstation (PC) Directly via RS-232 (Optional) . . . . . . . Connecting the MGC-50 to the Network . . . . . . . . . . . . . . Connecting the MGC-50 to the ATM Network . . . . . . . . . Connecting the MGC-50 to the IP Network . . . . . . . . . . . . MPI-8 Hardware Installation for the MGC-50 . . . . . . . . . . . . . First Entry IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IP Configuration Change on XPEK and pSOS OS .
MGC Hardware and Installation Guide Power Supply Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fuse/Circuit Breaker (AC Power) . . . . . . . . . . . . . . . . . . . . . . . Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Alarms Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents Video Module Architecture . . . . . . . . . . . . . . . . . . . . . . . . Video+ Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Video+ Module Architecture . . . . . . . . . . . . . . . . . . . . . . . Data Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Data Module Architecture . . . . . . . . . . . . . . . . . . . . . . . . . Input/Output Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MGC Hardware and Installation Guide Cables For the MPI-8 Network Interface Module . . . . . . . .
Table of Contents vi
1 Before You Begin The MGC-50 and the MGC-100 are high performance, high capacity Multipoint Control Units (MCU) which support up to 48 ports for the MGC50, and 96 ports for the MGC-100. They utilize a variable port bandwidth ranging from 56 to 1920 Kbps.
Chapter 1 - Before You Begin The system meets International Telecommunication Union Telecommunication Standardization Sector, (ITU-T, formerly CCITT) standards for multipoint multimedia bridging devices, and meets ETSI standards for telecommunication products. The MGC-100 DC also meets the NEBS Compliant Standard (when so ordered) for our clients based in the United States. The flexible architecture in the system is designed to accommodate users’ changing multipoint needs.
MGC Hardware and Installation Manual MGC Unit Main Features The MGC unit offers the following features: • Supports a large number of ports (48 for the MGC-50, 96 for the MGC100) running at 128 Kbps • Universal slots, telco grade high availability with hot-swappable modules, redundancy, on-line upgrading and dynamic resource allocation • Support for standard network interfaces (ISDN, ATM, T1-CAS, LAN and V.
Chapter 1 - Before You Begin MGC-50/MGC-100 Specifications Table 1-1 lists the specifications of the MGC-50 and the MGC-100 units. Table 1-1: MGC Specifications 1-4 Physical MGC-50 MGC-100 MGC-100 NEBS Height 16” 16” 21” Width 15”, 19” with mounting plate 23” with mounting plates, 19” with unit at 90° 23” with mounting plates Depth 19.5” 19.5” 19.
MGC Hardware and Installation Manual Table 1-1: MGC Specifications Channel aggregation H.221, BONDING, Multi-Rate (H0) Network interfaces ISDN: T1 PRI, E1 PRI, Multirate ISDN, NFAS, Leased lines-T1/E1, Switched 56 T1-CAS T1-CAS lines for Audio Only connections ATM: 25 (FVC.COM), 155 (FVC.COM) IP (H.323 and SIP): LAN Serial: V.
Chapter 1 - Before You Begin Table 1-1: MGC Specifications Operating ESD +8kV Storage ESD +15kV System Communications MGC-50/MGC-100 Integrated scheduler Yes API to 3rd party reservation systems Yes Conference Setup (Scheduled/ Unscheduled) Meet Me Per 1-6 MGC-50/MGC-100 • • • • Conference MCU Channel Party Dial-out/Dial-in Yes Diagnostics MGC-50/MGC-100 Power up Yes On-line Yes Remote Yes Serviceability / Reliability MGC-50/MGC-100 Hot plug-in modules Yes Front panel removable
MGC Hardware and Installation Manual Table 1-1: MGC Specifications AC Input 100-240 VAC, 50/60 Hz 100-240 VAC, 50/60 Hz Power Consumption MGC-50 MGC-100 AC Maximum Power consumption AC Voltage 10Amp at 100 VAC, 5 Amp at 240 VAC protected by a 12.5 Amp fuse. Note: Older MCU units may have different power ratings. Contact your next level of support. AC Voltage - 8.5 Amp at 100 VAC and 4.2 Amp at 240 VAC protected by a 15 Amp circuit breaker.
Chapter 1 - Before You Begin Scope of Manual This manual describes the MGC-50 and the MGC-100 hardware and installation procedure. It is intended for service engineers, system administrators and system operators who need to install, configure and maintain the MGC unit. Detailed information on using the system, including starting and shutting down the system, is provided in the MGC Manager User’s Guide.
MGC Hardware and Installation Manual Conventions Before using this manual, it is important for you to understand the terms and conventions used: • The term “Choose” or “Double-click” is used when you need to activate a menu command or a command button in the dialog box. • The term “Select” or “Click” is used to highlight a part of the window, dialog box or menu that you want to be changed with your next action.
Chapter 1 - Before You Begin List of Abbreviations The following is the list of abbreviations used throughout this manual: Table 1-2: Abbreviations 1-10 API Application Programming Interface CSU Channel Service Unit DPR Dual Port Ram ESD Electro-Static Discharge HDLC High-level Data Link Control HSD High Speed Data IP Internet Protocol ISDN Integrated Services Digital Network LAN Local Area Network LED Light Emitting Diode LSD Low Speed Data MCU Multipoint Control Unit MGC Multim
MGC Hardware and Installation Manual Installation and Configuration Workflow The MGC unit installation and configuration process includes the following main steps: Hardware Installation, Software Installation, Database Configuration, Network Services definition and the MGC unit cards configuration. The Hardware Installation stage is described in this guide. The remaining steps are described in the MGC Administrator’s Guide, as described in following flowchart.
Chapter 1 - Before You Begin 1-12
2 Hardware Installation This chapter describes the unpacking and connection of both the MGC+50 and the MGC+100, to the ISDN, T1-CAS, H.
Chapter 2 - Hardware Installation MGC-100 Hardware Installation Unpacking and Positioning the MGC-100 To unpack and position the MGC-100: 1. When you receive your MGC-100, inspect the equipment for damage and verify that the components match the packing slip. If you did not receive a component or if there is damage to the system, notify your service representative immediately. Wood Packing Case Carrying Strap Lock in Closed Position Lock in Open Position Figure 2-1: MGC-100 package 2-2 2.
MGC Hardware and Installation Manual 3. Release the clasp locks at the bottom, and lift the MGC-100 top cover. Wood Packing Case Foam Block Foam Block Figure 2-2: Unpacking the MGC-100 4. Lift the MGC-100 unit and remove the packaging material. 5. Lower the MGC-100 unit, placing it on the surface. If the MGC-100 is a standalone unit, place it on a flat surface. If you are rack mounting the MGC-100, allow a minimum clearance of 3” above the unit.
Chapter 2 - Hardware Installation Mounting the MGC-100 on a 23” Rack The MGC-100 can be mounted to a 23” rack using the two mounting plates that are pre-installed on the unit. 1. Make sure that the MCU is turned OFF and it is disconnected from the AC or DC power. 2. Place the MCU in a 23” rack and support it, screw the mounting brackets to the rack securing it with bolts and self-locking nuts (which the client provides).
MGC Hardware and Installation Manual 6. Unscrew both MCU the side screws and remove both side plates. front Remove plate 7. From the inside of the MGC-100, screw the mounting brackets to both sides of the MCU, securing the screws in the mounted nuts.
Chapter 2 - Hardware Installation 8. Place the MCU in a 23” rack and while supporting it, screw the mounting brackets to the rack securing it with bolts and self-locking nuts. When the unit is installed on a rack, the rack must be properly grounded to the central office ground. The rack must be grounded with two-hole compressiontype connectors using copper conductors (tinned or untinned). Wire, bus bar or braided strap connectors are acceptable.
MGC Hardware and Installation Manual Because of heat considerations, the MCU must be installed with the Control Unit Module placed on the left bottom. 1. Check that all the parts are in the kit. The kit should contain the following items: Table 2-1: 19” Rack Mounting Kit Item # Polycom P/N Description Quantity 1 MEC2063A 23" TO 19" Mounting Bar MGC100 at 90 Degrees 2 2 SCR2005A Screw 10-32 x 1/2” Allen S/H ST/ST 8 3 WAS2003A Washer M5 Spring Latch Loc.
Chapter 2 - Hardware Installation 5. Carefully rotate the MGC-100 counterclockwise 90°, making sure the Control Unit is at the bottom left. 6. While supporting the MGC-100, place it on the 19” rack and screw the brackets to the rack, securing it with the screws and nuts supplied with the rack. NEBS Standard For installations based within the United States, an MGC-100 DC NEBS compliant system is available. The NEBS compliant systems differs in its construction of the frame and the power supply.
MGC Hardware and Installation Manual Connecting and Setting Up the MGC-100 Use the MGC-100 rear panel diagram below for reference.
Chapter 2 - Hardware Installation MGC-100 Dongle MGC-100 is shipped with a serial dongle installed on COM1 on the MCU rear panel. The dongle is required for normal operation of the MCU. If the dongle is missing, please contact support. Connecting to the power source You can connect to an AC Inlet or to DC power supply according to the power system used in your site. Follow the steps appropriate to your power system.
MGC Hardware and Installation Manual To connect to the -48DC power system: 1. Make sure the power switch is OFF. Turn off the DC power distribution unit. 2. Using the three wires 10 AWG cable running from the DC power distribution unit, connect the black wire into the -48IN terminal block and the red wire to the -48V RTN terminal block. 3. Connect the green or green-yellow wire to the system single-point “Ground” screw.
Chapter 2 - Hardware Installation 5. Turn on the power by pressing on the power switch located on the rear panel of the MGC-100 unit. Connecting the MGC-100 to the LAN Network Connect one end of a network cable to the LAN connector on the rear panel of the MGC-100 and the other end to the network.
MGC Hardware and Installation Manual Connecting the MGC-100 to the Network To connect the MGC-100 to the ISDN network or T1-CAS Network: The ISDN network is optional. If the MGC-100 has to be connected to the public ISDN network then an external CSU or similar equipment is needed. T1-CAS network is optional. It allows you to connect Audio Only participants to conferences via T1-CAS lines.
Chapter 2 - Hardware Installation To connect the MGC-100 to the ATM network: The MGC-100 can be connected to an ATM network. The type of connection being used differs according to the ATM Network Interface card installed in the MCU. If an ATM-25 network interface card is installed, connect the 8-pin RJ-45 connector of the network cable to the NET RJ-45 jack on the rear panel of the MGC-100.
MGC Hardware and Installation Manual To connect the MGC-100 to the IP network: If an IP network Interface card is installed in the MGC-100, connect the 8-pin RJ-45 connector of the LAN network cable to the LAN-323 RJ-45 jack on the rear panel of the MGC-100. Figure 2-9: LAN H.323 network connection When installing a NEBS compliant system, use only shielded LAN cables where the shield is grounded at both ends when connecting to the IO LAN port of the IP+48 on the MGC+ rear panel.
Chapter 2 - Hardware Installation MPI-4/8 Hardware Installation for the MGC-100 The MPI-4/8 (Multi Protocol Interface) Network Interface card is inserted into the MGC-100 unit. The MPI box may be mounted on top of the MGC-100 using mounting brackets, or on a separate 19” or 23” rack, as can be seen in Figure 2-8. When installed on a 19” rack, the MPI box can be mounted directly on the rack. When installed on a 23” rack, a mounting plate must be used.
MGC Hardware and Installation Manual To install the MPI-4/8 Network Interface Module: 1. Slide the MPI-4/8 Network Interface module into a free slot in the MGC front panel. 2. Push the MPI-4/8 Network Interface module firmly into the Backplane, making sure it is properly seated in its slot. 3. Tighten the screws on the front panel of the MGC-100 that secure the MPI-4/8 Network Interface module. To install the MPI Box on Top of the MCU: 1. Turn OFF power to the MCU and unplug it from AC power. 2.
Chapter 2 - Hardware Installation 4. Place the mounting bracket on top of the MCU aligning it against the screw openings as shown below and tighten the screws. rear tighten screws front 5. Mount the bracket on the other side of the MCU (repeat step 4). 6. Place the MPI box with its four 160-pin connectors facing the MCU front panel between the two mounting brackets. Secure it with the screws supplied with the MPI Box.
MGC Hardware and Installation Manual 7. If the MCU is standalone, reassemble the side panels. If the MCU is rack mounted, mount the unit on the rack and connect all the external cables.
Chapter 2 - Hardware Installation 10. Connect the serial cable running from the DCE to the appropriate 37-pin connector on the rear panel of the MPI Box. If dialing is used, connect the appropriate cable from the DCE to the 25-pin connector on the rear panel of the MPI Box. Whenever the MGC unit is used as a DCE and connected straight to an endpoint the serial data stream flows from the endpoint (DTE) through the serial connector to the MPI box.
MGC Hardware and Installation Manual MGC-50 Hardware Installation Unpacking and Positioning the MGC-50 To unpack and position the MGC-50: 1. When you receive your MGC-50, inspect the equipment for damage and verify that the components match the packing slip. If you did not receive a component or if there is damage to the system, notify Polycom immediately. Wood Packing Case Carrying Strap Lock in Closed Position Lock in Open Position Figure 2-11: MGC-50 package 2.
Chapter 2 - Hardware Installation 3. Release the clasp locks at the bottom, and lift the MGC-50 top cover. Wood Packing Case Foam Blocks Foam Blocks Figure 2-12: Unpacking the MGC-50 2-22 4. Lift the MGC-50 unit and remove the package base. 5. Lower the MGC-50 unit, placing it on the surface. If you are rack mounting the MGC-50, allow a minimum clearance of 3 inches above the unit.
MGC Hardware and Installation Manual Mounting the MGC-50 on a Rack The MGC-50 can be mounted in a 19” rack using two mounting plates (Kit 2012A). The side plates are usually mounted when shipped, but if not, follow the directions below to install the mounted plates on the MGC-50 and then mount the MGC-50 on the 19” rack. To install and mount the MGC-50: 1. Make sure that the MGC-50 power is turned OFF and it is disconnected from the AC power. 2.
Chapter 2 - Hardware Installation 6. Once the Main Control Module, the power supply module and the boards are removed, unscrew the side screws from inside the MGC-50, and then remove the plate from both MGC-50 sides. Front Remove plate Rear 7. From the inside of the MGC-50, screw the mounting bracket to the side of the MGC-50, securing the screws in the mounted nuts.
MGC Hardware and Installation Manual 8. To remove the plate from the right side of the MGC unit remove the appropriate number of functional modules to allow access to the screws. 9. From the inside of the MGC-50, screw the mounting bracket to the side of the MGC-50, securing the screws with the mounted nuts. 10. Insert the functional modules removed earlier into the MGC-50. 11.
Chapter 2 - Hardware Installation Connecting and Setting Up the MGC-50 Use the MGC-50 rear panel diagram below for reference.
MGC Hardware and Installation Manual Connecting to the Power Source To connect to the AC Inlet: 1. Make sure that the power switch located on the rear panel of the MGC unit is off. 2. Insert the power cable into the power connector on the rear panel of the MGC-50 unit. Main Switch AC Inlet 3. Insert the power cable into the power source socket. 4. Turn on the power by pressing on the power switch located on the rear panel of the MGC-50 unit.
Chapter 2 - Hardware Installation Connecting the MGC-50 to the LAN Network Connect one end of a network cable to the LAN connector on the rear panel of the MGC and the other end to the network. Connecting the MGC-50 to the Operator Workstation (PC) Directly via RS-232 (Optional) Connect one end of an RS-232 cable to the COM 2 connector on the front panel of the MGC Control Unit and the other end to the serial port of the operator station (See RS-232 Pin Assignment, A-3).
MGC Hardware and Installation Manual ISDN network connection ISDN Network connection for 4 spans ISDN Network connection for 8 spans Figure 2-14: ISDN network connection • Leased lines should be connected using an adapter with a screw connector for solid conductor wires with a diameter in the range 0.4 to 0.6 mm. Use Polycom P/N CBL0602A or similar adapter. Connect one side of the adapter to the NET RJ-45 jack on the rear panel of the MGC.
Chapter 2 - Hardware Installation Connecting the MGC-50 to the ATM Network The MGC-50 can be connected to an ATM network. The type of connection used differs according to the ATM Network Interface card installed in the MCU. If an ATM-25 network interface card is installed, connect the 8-pin RJ-45 connector of the network cable to the NET RJ-45 jack on the rear panel of the MGC.
MGC Hardware and Installation Manual Connecting the MGC-50 to the IP Network If an IP network Interface card is installed in the MGC, connect the 8-pin RJ-45 connector of the LAN network cable to the LAN-323 RJ-45 jack on the rear panel of the MGC. Figure 2-17: LAN IP network connection The IP network properties must be defined in the IP Network Service. For details, see MGC Administrator’s Guide, Chapter 3.
Chapter 2 - Hardware Installation MPI-8 Hardware Installation for the MGC-50 The MPI-8 Network Interface card is inserted into the MGC-50. The MPI box is mounted on a 19” rack together with the MGC-50, as can be seen in Figure 2-15. The MPI box is mounted directly on the rack, above the MGC-50, leaving at least 6” free space above the MGC-50. For details, on how to mount the MGC-50, refer to the section “Mounting the MGC-50 on a Rack” on page 2-23.
MGC Hardware and Installation Manual To install the MPI-8 Network Interface Module: 1. Slide the MPI-8 Network Interface module into a free slot in the MCU front panel. 2. Push the MPI-8 Network Interface module firmly into the Backplane, making sure it is properly seated in its slot. 3. Tighten the screws on the front panel of the MGC-50 that secure the MPI-8 Network Interface module. To mount the MPI Box on the Rack for the MGC-50: 1. Turn OFF power to the MCU and unplug it from AC power. 2.
Chapter 2 - Hardware Installation Using a second cable, connect the 160-pin connector to Port B of the MPI-8 Network Interface front panel. Connect the other end of the cable to B (Ports 5-8) 160-pin connector of the MPI Box. By doing this procedure we have utilized the MPI Box as a MPI-8.
MGC Hardware and Installation Manual First Entry IP Configuration This following section describes the first entry IP Configuration for pSOSystem and XPEK Operating Systems. IP Configuration Change on XPEK and pSOS OS 1. Connect a Hub or cross-over LAN cable between the laptop’s LAN connection and the LAN connection of the Control Unit. 2. On the laptop, click Control Panel ->Network Connection->Local Area Connection. 3. In the Local Area Connection - General dialog box, click the Properties button.
Chapter 2 - Hardware Installation The Add MCU dialog box opens. 9. 2-36 b. In the Name box, enter the name of the MCU. Specify a name that clearly identifies the MCU. c. In the IP Address box, enter the factory-setting IP Address:129.254.4.8. d. Click OK. The new MCU is added to the MCUs list. In the MCUs list, double-click the MCU icon to connect to it.
MGC Hardware and Installation Manual 10. Modify the IP address of the MCU unit as allocated by the network administrator. This is the IP address with which the MCU is identified on the LAN site: a. Right-click the MCU icon, and then click IP Configuration. The IP Configuration dialog box opens. b.
Chapter 2 - Hardware Installation Table 2-2: IP Configuration Options Option Description IP Address The system displays the currently defined IP address. Enter the IP address allocated to the MCU by the network administrator. Subnet Mask Enter the Subnet Mask of the MCU. Default Gateway Enter the IP Address of the default gateway/ router. 11. Click OK. 12. Exit the MGC Manager and switch OFF the MCU. 13. Disconnect the MCU from the cross-over cable. 14. Connect the MCU to your site’s network. 15.
MGC Hardware and Installation Manual The MCU Properties dialog box opens. The current MCU name. To modify, type a new name MCU IP address. Enter the IP address of the MCU as allocated by the network administrator b. Enter the IP address of the MCU as you have defined in the IP Configuration. c. Click OK. Using a DOS Diskette with the Updated LAN.CFG File 1. Using Windows Notepad, create a new text file with the following text: IP_ADDRESS = aaa.bbb.ccc.ddd NETWORK_MASK = aaa.bbb.ccc.
Chapter 2 - Hardware Installation 2. Save the information, creating a text file named LAN.CFG. 3. Copy the file to an empty DOS diskette. 4. Turn on the MCU and wait for the Power LED to blink. 5. Insert the DOS diskette to the MCU diskette drive. 6. The MCU reads information from the diskette several times. Wait for the floppy to stop blinking. 7. Remove the diskette from the diskette drive. 8. Connect the MCU to your site’s network. 9.
MGC Hardware and Installation Manual Clocking To be able to work with the network connected to the MCU you need to synchronize the system clock with the network clock. This is done in two steps: • Selecting the network type according to which the system clock will synchronize. Only one system type may be selected for clocking. The clock source is then defined in the “system cfg”. • Selecting the spans of the selected network that will act as Master and Backup clocks.
Chapter 2 - Hardware Installation 2-42
3 System Architecture The MGC unit is designed to provide maximum reliability, minimum interruptions, and effortless maintenance. Removable active components are accessed via the front panel to provide quick and easy serviceability. Redundant power supplies are easily accessed via the front panel, ensuring a fail safe operation (the MGC-50 is not redundant, therefore not hotswappable). Network connections on the back of the unit enable easy module removal and prevent accidental disconnection.
Chapter 3 - System Architecture The MGC Unit is made up of: • Main Control Module, located at the top left of the unit when viewed from the front • Functional Modules, located to the right of the Main Control Module when the unit is viewed from the front • Power Supply Module, located underneath the Main Control Module and Functional Modules • Input/Output cards, located behind the backplane opposite the Functional Modules. The various modules communicate with each other via the Backplane.
MGC Hardware and Installation Manual Figure 3-3 describes the functional block diagram of the complete MGC-50. Backplane PRI-8 MG-323 Audio Audio Video Video Video Video Rear MUSIC I/O H.
Chapter 3 - System Architecture Figure 3-4 shows the physical layout of the MGC-100 and how it interfaces with the outside world. Operator Workstation ATM Network Main Control Module RS232 Ethernet RS232 Main CPU LAN Interface Serial Inteface Hard Disk Comm.
MGC Hardware and Installation Manual Figure 3-5 shows the physical layout of the MGC-100 and how it interfaces with the outside world. H323 Network ATM ISDN Network Network CSU/PABX MGC-100 I/O Card I/O Card I/O Card LAN RS232 Ethernet RS232 Main CPU LAN Interface Serial Interface Floppy Disk Main Control Module Workstations Alarms 120/230 V Workstations Hard Disk Comm.
Chapter 3 - System Architecture Figure 3-6 shows the physical layout of the MGC-50 and how it interfaces with the outside world. H323 Network ATM ISDN Network Network CSU/PABX I/O Card I/O Card I/O Card LAN RS232 Ethernet RS232 Main CPU LAN Interface Serial Interface Floppy Disk Main Control Module MGC-100 Workstations Alarms 120/230 V Workstations Hard Disk Comm.
MGC Hardware and Installation Manual Information Flow Figure 3-7 shows the flow of information within the system. The MUX Module is not used with the H.323. H323 ATM MPI I/O Card I/O Card H.
Chapter 3 - System Architecture The MUX module divides the incoming information into audio, video and data components, and then forwards the information to the appropriate functional module. The information arriving at the MUX ports is multiplexed into Nx56/64 Kbps channels. These channels can be hyperchannels or aggregated channels, depending on the capabilities of the network and the receiving terminals. The MUX Module transfers audio information to the Audio Module via the Information Highway.
MGC Hardware and Installation Manual MGC Manager Interface As shown in Figure 3-4, “MGC unit functional block diagram” on page 3-4, the Main Control Unit communicates with the MGC Manager through the LAN interface or the RS-232 interface. Power Supply Flow For the MGC-100, the AC power inlet is connected by a switch through a 15 Amp. circuit breaker and then filtered to the AC power supply module.
Chapter 3 - System Architecture 3-10
4 Hardware Description This chapter describes the various components that make up the MGC unit.
Chapter 4 - Hardware Description MGC-100 Components Location Figure 4-1 shows the front panel of the MGC-100. The front panel provides access to the Main Control Module, the Functional Modules, and the Power Supply Modules. Status LEDs on the Main Control Module, Functional Modules, and Power Supply Modules indicate the status of the system.
MGC Hardware and Installation Manual Figure 4-2 shows the rear panel of the MGC-100. The rear panel provides access to the network I/O card connectors. I/O cards are inserted via the rear panel. In addition, the rear panel houses the main power switch, AC inlet, fans, the circuit breaker, additional communications ports and alarm ports. The alarms port provides dry contacts for critical, major, and minor alarms.
Chapter 4 - Hardware Description Figure 4-3 shows the front panel of the MGC-100 NEBS Standard. The front panel, as in the MGC-100, provides access to the Main Control Module, the Functional Modules, and the Power Supply Modules. Status LEDs on the Main Control Module, Functional Modules, and Power Supply Modules indicate the status of the system. .
MGC Hardware and Installation Manual Figure 4-4 shows the rear panel of the MGC-100 NEBS Standard. The rear panel, as in the standard MGC-100, provides access to the network I/O card connectors and fans. I/O cards are inserted via the rear panel.
Chapter 4 - Hardware Description Figure 4-5 shows the top view of the inside of the MGC-100. The Main Control Module, Functional Modules, and I/O cards are all connected to the Backplane. The Power Supply Modules, located underneath the Main Control Module and the Functional Modules, are connected to the Powerplane.
MGC Hardware and Installation Manual MGC-50 Components Location Figure 4-6 shows the front panel of the MGC-50. The front panel provides access to the Main Control Module, the Functional Modules, and the Power Supply Module. Status LEDs on the Main Control Module, Functional Modules, and Power Supply Module indicate the status of the system.
Chapter 4 - Hardware Description Figure 4-7 shows the rear panel of the MGC-50. I/O cards are inserted via the rear panel. The rear panel also provides access to the fans, power supply module, network connections, additional communications ports, the main power switch, AC inlet, and fuse.
MGC Hardware and Installation Manual Figure 4-8 shows the top view of the inside of the MGC-50. The Main Control Module, Functional Modules, and I/O cards are all connected to the Backplane. The Power Supply Module is located underneath the Main Control Module and the Functional Modules, and is connected by wire leading to the backplane.
Chapter 4 - Hardware Description Main Control Module The Main Control Module performs the functions of conference setup, conference teardown, and resource allocation in both the MGC-100 and the MGC-50. The Main Control Module has an Intel-based Pentium processor, a hard disk drive and 256 MB of memory. To enable 2000 reservations, the MCU Main Control Module must contain at least 128 MB of memory. The front LED’s indicate the status if the module is in operation and functioning properly.
MGC Hardware and Installation Manual The MGC unit can contain different types of IP network cards. The Main Control Module operating system includes drivers for all of the cards. The Main Control Module’s operating system automatically detects the card type. If the card is correctly identified, the system starts up correctly. If the system fails to detect any card type, it will start up according to the card type definition in the system.cfg file. The Main Control Module includes several connectors.
Chapter 4 - Hardware Description MGC-50/100 Control Unit with Removable Hard Drive As an option the Control Unit (CU) can be supplied with a removable Hard Drive. The Hard Drive is pre-configured for either XPEK or pSOS Operating Systems. This Control Unit does not include a floppy disk drive. • MGC Manager versions 6.11 and 7.0.2 also can support the removable Hard drive. • It is possible to configure several removable Hard drives for a single MCU.
MGC Hardware and Installation Manual 6. Use the plastic ejectors to pull the Control Unit out of its slot. 7. Slide the Main Control Unit out through the front panel and remove the Control Unit from the MCU. Control Unit Installation Installing the Control Unit on the MCU: 1. Ensure that the MCU is OFF, and the power cord is disconnected. 2. Slide in the new Control Unit, making sure that no internal cables block or are damaged in any way. 3.
Chapter 4 - Hardware Description 6. Attach the rear panel back on the chassis. 7. Connect the power cord to the power source and switch ON the main power switch on the rear panel. 8. Open the MGC Manager application. 9. Configure the MCU’s IP Address as specified in the First Entry IP Configuration section below. IP Configuration Change For more information see “IP Configuration Change on XPEK and pSOS OS” on page 2-35 of this manual.
MGC Hardware and Installation Manual Inserting the Hard Drive 1. Make sure the MCU is OFF and insert the Hard Drive into its slot. Check that the Hard Drive is firmly locked into place. 2. Turn the key counter clockwise to lock the Hard Drive. 3. Turn ON the MCU. The LED activates on the Hard Drive’s panel after MCU startup. 4. In normal mode the Hard Drive 7- segment LED is set to 0 When the LED does not display 0, contact support.
Chapter 4 - Hardware Description 4. You can now remove the Hard Drive by sliding it out from its housing.
MGC Hardware and Installation Manual Backplane The Backplane is based on the “universal slot” concept, where any card can be inserted in any slot. Therefore, different configurations are formed based on the users’ port capacity and functionality requirements. The Backplane supports hot swapping of Function Modules and I/O cards. In the MGC-100, the front of the Backplane contains 16 slots for Functional Modules and an additional slot (Slot A) for the Main Control Module.
Chapter 4 - Hardware Description In the MGC-50, the front of the Backplane contains eight slots for Functional Modules and an additional slot (Slot A) for the Main Control Module. The back of the Backplane also contains eight slots for I/O cards and one “dummy” slot. The Network Interface Module is connected via the Backplane to I/O cards, which connect the system to the network. The Power Supply Module provides power to the Backplane via a power bus. Backplane MPI Serial Network I/F H.323 I/O H.
MGC Hardware and Installation Manual Information Highway The Information Highway is a high capacity TDM-type bus. It is used by both the MGC-100 and the MGC-50. The Information Highway transfers information from the Network Interface Modules to the MUX Modules and from the MUX Modules to the Audio, Video and Data Modules except during IP calls. In IP calls (H.323 and SIP) the information is transferred directly to the IP network module and from there to the Audio, Video and Data modules.
Chapter 4 - Hardware Description Power Supply Module Both MGC units (MGC-100 and MGC-50) operate at 100-240 volts AC 50/60 Hz. Power Module in the MGC-100 Up to three redundant power supplies (N+1) provide backup for the system to ensure multipoint service is not interrupted as a result of any single power supply failure. The Power Supply Modules are hot swappable and connect to the Powerplane, which is part of the Backplane. The power supply automatically senses the AC input voltage.
MGC Hardware and Installation Manual Power Module in the MGC-50 In the MGC-50, the Power Supply Module is not hot swappable. The power supply automatically senses the AC input voltage. The capacities of the power supply module are shown in Table 4-2, “MGC-50 Power supply module capacity”. Table 4-2: MGC-50 Power supply module capacity Voltage (V) Maximum current (Amp.) 5 120 12 2 -12 .5 Power Supply Cord The MGC-100 and the MGC-50 may only use power supply cords supplied by Polycom Inc.
Chapter 4 - Hardware Description Fuse/Circuit Breaker (AC Power) Currently, MGC-100 Control Units come equipped with a circuit breaker. Previous models on the MGC-100 use one UL approved circuit breaker. The specifications of the fuse are shown in Table 4-3. The MGC-50 uses one UL approved fuse, Schurter Type no. 0001.1015. The specifications of the fuse is also shown in Table 4-3.
MGC Hardware and Installation Manual Functional Modules The Functional Modules (cards) perform the various audio, video, and data processing functions for the MGC unit. Both the MGC-100 and the MGC-50 use the same functional modules. The MGC-100 unit houses up to sixteen Functional Modules, which can occupy slots 1 through 16. The MGC-50 unit houses up to eight Functional Modules, which can occupy slots 1 through 8.
Chapter 4 - Hardware Description Table 4-4: MGC Functional Modules Description 4-24 Functional Module Function Port capacity MG323 Audio, video and data communications across IP based (LAN) networks, including the Internet. • 12 channels at 128, 256 and 384Kbps IP24 Enables Audio, video and data communications across IP based (LAN) networks, including the Internet.
MGC Hardware and Installation Manual Table 4-4: MGC Functional Modules Description Functional Module Function Port capacity MPI-4 Uses dialing protocols to communicate to endpoints using “Data Terminal Equipment” (DTE), or Data Communications Equipment (DCE). 120 channels/92 channels MPI-8 Uses dialing protocols to communicate to endpoints using “Data Terminal Equipment” (DTE), or Data Communications Equipment (DCE).
Chapter 4 - Hardware Description Table 4-4: MGC Functional Modules Description Functional Module Function Port capacity MUX Module Multiplexes and demultiplexes audio, data, video, and control information; performs channel aggregation (inverse multiplexing). Up to 16 ports MUX+10 Multiplexes and demultiplexes audio, data, video, and control information; performs channel aggregation, enables Encryption.
MGC Hardware and Installation Manual Figure 4-13: General module architecture Table 4-5: Common functional module components Component Description Card Manager The Card Manager processor. HDLC Interface Provides the interface for the Control bus. Watch Dog Represents the Watch Dog, power control, and reset switch. Memory Represents the RAM for processor general use and the flash for the card CPU’s software and module specific information such as serial number.
Chapter 4 - Hardware Description Net-E1/Net-T1 ISDN Network Interface Module The Net-E1/Net-T1 ISDN Network Interface module provides the interface between the MGC unit and the ISDN network. It supports up to two PRI connections of the same type (E1, T1). One ISDN Network Interface module in each MGC unit serves as the “master clock,” which synchronizes the system clock to the ISDN network clock. The second module provides a backup clock, which is used if the master clock fails.
MGC Hardware and Installation Manual TDM Interface ATM ATM Hardware MVIP ATM-MVIP Card ISA Interface Front Panel LEDs Watch Dog Card Manager Memory HDLC Interface Figure 4-14: Net-E1/Net-T1 ISDN Network Interface Module 4-29
Chapter 4 - Hardware Description The Net-E1/Net-T1 ISDN Network Interface Data Stream Figure 4-14 shows a block diagram of the network interface of the MGC unit.
MGC Hardware and Installation Manual Net-2/Net-4/Net-8/Net-8L ISDN and Net-2/Net-4/Net-8 T1-CAS Network Interface Module The Net-2/Net-4/Net-8/Net-8L ISDN Network Interface module provides the interface between the MGC unit and the ISDN network. The Net-2/Net-4/ Net-8 T1-CAS Network Interface module provides the interface between the MGC unit and T1-CAS lines. The same type of card can be used to connect ISDN lines or T1-CAS lines.
Chapter 4 - Hardware Description TDM Interface TDM I/F FRAMER Front Panel LEDs Card Manager DPR PHYI/F COM Processor Watch Dog HDLC Interface Figure 4-16: Net-2/Net-4/Net-8 ISDN/T1-CAS and Net-8L ISDN Network Interface Module 4-32
MGC Hardware and Installation Manual The Net-2/Net-4/Net-8 ISDN/T1-CAS Network Interface Data Stream Figure 4-16 shows a block diagram of the Net-2/Net-4/Net-8/Net-8L network interface of the MGC unit.
Chapter 4 - Hardware Description ATM Network Interface Module The ATM Network Interface Module provides the interface between the MGC unit and ATM network. The ATM card may be shipped in two configurations: ATM-25 Network Interface Module that supports one 25MB connection using RJ-45 connector and ATM-155 Network Interface Module that supports one 155MB connection using a fiber optics connector. The ATM-25 (FVC) Network Interface Module supports up to 10 H.
MGC Hardware and Installation Manual IP and IP+ Network Interface Module The IP and IP+ Network Interface Modules support participant connections using H.323 communication standards. The IP+ Network Interface Module also supports SIP participants. H.323 is a standard for audio, video and data communications across IP based (LAN) networks, including the Internet. H.323 allows endpoints to use multimedia applications without changing the network infrastructure. H.
Chapter 4 - Hardware Description The IP+ cards are available in IP+12, IP+24 and IP+48 port sub-assemblies. The following table lists the type of IP card, its version number, its compatibility with SIP, VoIP and Encrypted conferences and its capacity. Table 4-1: IP Card Types IP Card Name HW Version SIP Support Number of Units VOIP Call Capacity Encryption MG323 ≥ 1.24/1.41 – 3 12 No IP24 ≥ 2.21 – 3 24 No IP48 4.23 ≥ 4.41 + 3 96 IP+12 ≥ 4.41 + 1 32 IP+24 ≥ 4.
MGC Hardware and Installation Manual Table 4-2: IP Participant Types and Line Rate Capacities Line Rate Card Type Participant Type 128 Kbps 384 Kbps 512 Kbps 768 Kbps E1/T1 Standard Video participant 12 12 6 6 3 T.120 participant 6 6 6 6 6 SWCP participant NA 12 6 6 3 Standard Video participant 48 24 12 12 6 T.120 participant 6 6 6 6 6 SWCP participant NA 24 12 12 6 Standard Video participant 96 48 48 24 12 T.
Chapter 4 - Hardware Description IP and IP+ Network Interface Module Architecture The IP and IP+ Network Interface Modules have the same general card structure as other MGC modules: Card-Manager, TDM interface, and the functional units. Figure 4-18 shows the architecture for the IP and IP+ Network Interface Modules.
MGC Hardware and Installation Manual The MPI-8 Network Interface Module MPI is an acronym for the Multi Protocol Interface card. The MPI-8 is a serial communications interface card that uses certain protocols to communicate to endpoints, “Data Terminal Equipment” (DTE), or “Data Communications Equipment” (DCE). The protocols that it uses are RS-449, RS-530, V.35, and RS-366, which is a dialing protocol. The MPI-8 Network Interface Module is connected to the DCE (supplied by the customer) via the MPI box.
Chapter 4 - Hardware Description Each 160-pin connector can be connected to one 160-pin connector located on the front panel of the MPI box. 160-pin connector Converts data from four ports PORTS A 1-4 A PORTS 9-12 PORTS B 5-8 B PORTS 13-16 160-pin connector Converts data from four ports Figure 4-21: MPI box front panel Each of the 160-pin connectors on the MPI box interfaces to four serial ports found on the back of the MPI box.
MGC Hardware and Installation Manual MPI-8 Network Interface Data Stream When the MCU is set as a DTE The ISDN data stream flows from the ISDN telecommunication network through the DCE to the serial port (37-pin connector) on the MPI box. The data is then directed from the 37-PIN connector to the 160-PIN connector, which gathers data from four different ports, and channels the data stream to the 160-pin connector located on the MPI-8 front panel.
Chapter 4 - Hardware Description When the MCU is set as a DCE The serial data stream flows from the endpoint (DTE) through the serial connector entering the MPI box by way of the 37-pin connector. The data is then directed from the 37-pin connector to the 160-pin connector connected to the MCU (DCE). In the MCU the data stream is converted to a TDM format, and then sent to the backplane information bus. Since this is a full duplex communication, the data is also bi-directional.
MGC Hardware and Installation Manual MPI Network Interface Module Architecture Figure 4-25, “MPI-8 Network Interface module architecture” shows the architecture for the MPI-8 Network Interface Module. TDM Interface Bit Rate I/F #1 PHYI/F Bit Rate I/F #2 PHYI/F TDM I/F Front Panel LEDs Watch Dog Card Manager HDLC Interface Figure 4-25: MPI-8 Network Interface module architecture MUX Module The MUX Module multiplexes and demultiplexes the audio, video, data, and control information.
Chapter 4 - Hardware Description The MUX Module receives information in one of the following standard formats: • Hyper-channel (or multi-rate ISDN) • Aggregated channel using the BONDING Mode 1 standard from 2 channels of 56/64 Kbps to 30 channels of 56/64 Kbps • Aggregated channel using the ITU-T H.221 standard for channels with data rates of up to 6x56/64 Kbps The MUX Module supports up to 16 MUX ports. Each MUX port supports one site.
MGC Hardware and Installation Manual MUX Module Architecture Figure 4-25 shows the card architecture of the MUX Module.
Chapter 4 - Hardware Description MUX+ Module The MUX+ card performs multiplexing and demultiplexing of audio, video, data and control information. The MUX+ card has the same general card architecture as the MUX card and it includes the same number of processors. The MUX+ card capabilities include: • Higher capacity • Flexible port allocation • Supports conference encryption Encryption requires the MUX+ card.
MGC Hardware and Installation Manual The MUX+ card can be installed together with a MUX card in the same MCU. A conference can run on multiple MUX+ cards, and on both MUX and MUX+ cards simultaneously (with non-encrypted participants). The MUX+ handles a variety of Line Rates, aggregation calls (1B to 6B) and Bonding calls (128 Kbps to E1). MUX+ Card Properties A flexible port resource allocation mechanism is available with the MUX+ card and allocates ports dynamically thereby decreasing fragmentation.
Chapter 4 - Hardware Description IVR/Greet & Guide Welcome Slide Up to four video slides can be stored on the MUX+ card, in the same way that they are stored on the MUX card. In a mixed system with MUX and MUX+ cards, the Welcome slide is downloaded to all MUX/MUX+ cards. MUX+ Port Capacity MUX+ resources are allocated at the reservation stage. MUX+ resources are calculated according to the relative weight assigned to the different line rates.
MGC Hardware and Installation Manual The following table details the number of ports available with the MUX+ cards.
Chapter 4 - Hardware Description Table 4-3: MUX+ Cards Port Capacity (Continued) Card type Participant Line Rate Number of nonencrypted ports capacity Number of encrypted ports capacity 768 24 12 T1 8 4 E1 8 4 MUX+ Participant Move Options The administrator has the option to define move behavior of encrypted participants by setting the system.cfg flag: ALLOW_ENCRYPT_IN _PARTY_LEVEL =YES/NO.
MGC Hardware and Installation Manual MUX+ Resource Report MGC-50/100 Resource Report The Resources Report, displays the total number of MUX+ port resources available according to the card type, line rate and encryption. In the example shown here, the system lists the total number of ports available with the MUX+20 card for both non-encrypted and encrypted participants, based on their connection line rates.
Chapter 4 - Hardware Description Audio Module (Standard) The Audio Module performs audio compression, decompression, and bridging. The Audio Module also performs transcoding between various audio algorithms. The Audio Module supports the following algorithms: • ITU-T G.711 48, 56, and 64 Kbps • ITU-T G.722 48, 56, and 64 Kbps • ITU-T G.728 16 Kbps Audio Module Port Capacity The Audio module contains 13 units.
MGC Hardware and Installation Manual The following selections can be enabled with the Audio bridge: 1/30, 4/16, 6/12. • The total number of conferences that can be run by the MCU is: Number of Audio modules x 4 number of conferences selected for the Audio Bridge for each card. For example, if the system contains 2 audio modules and the Audio Bridge on one card is set to 1/30 and the Audio Bridge on the second card is set to 4/16, the MCU will be able to run a maximum of 5 conferences (1x4 + 1x1).
Chapter 4 - Hardware Description Audio Module Architecture Figure 4-26 shows the architecture for the Audio Module.
MGC Hardware and Installation Manual Audio+ Module The Audio+ Module performs audio compression, decompression, and bridging. The Audio+ Module also performs transcoding between various audio algorithms. The Audio+ Module supports the following algorithms: • ITU-T G.711 48, 56, and 64 Kbps • ITU-T G.722 48, 56, and 64 Kbps • ITU-T G.728 16 Kbps • ITU-T G.722.1 • ITU-T G.723.1 • ITU-T G.
Chapter 4 - Hardware Description Audio+ Module Architecture Audio+ represents a new family of audio cards. Audio+ has the same general card architecture as the audio card, but with a different number of processors. This has an impact on the number of ports supported by each card.
MGC Hardware and Installation Manual The following table details the card capacities according to the Audio algorithm used in the conference when the MCU is configured to Medium Band. Table 4-4: Audio+ card capacity per Audio algorithm - Medium Band setting Audio Algorithm G.711 G.722 G.722.1 G.728 G.723.1 G.
Chapter 4 - Hardware Description Video Module (Standard) The Video Module performs video processing and Transcoding. The module supports the ITU-T H.261 and H.263 standards (“Video Codec for Audiovisual Services at Px64 Kbps”). The Video Module supports multiple sites. When using the Continuous Presence mode of operation, the Video Module combines multiple video sources to build a video layout image.
MGC Hardware and Installation Manual The maximum transmission capability of E1 lines (up to 1920 Kbps) can be used in Transcoding or Continuous Presence conferences. To enable the high line rate transmission, a newer video card version (version 1.43 and up) must be installed. Figure 4-12 describes the various video card versions and their support of 30 frames per second and high bit rate: Table 4-6: Video card 30 FPS and high bit rate support Video Card Version 30 FPS Support High Bit Rate Support 1.
Chapter 4 - Hardware Description • Quad Mode Continuous Presence - Additional Continuous Presence layouts suitable for large conferences, i.e. 4x4. • H.263 video protocol at 30 Frames Per Second • Improved Video Quality • Improved Continuous Presence image quality at high bit rates (1.
MGC Hardware and Installation Manual Data Module The Data Module performs conference data and control routing for up to 12 participants. The system allows for 12 conferences of one participant each, or one conference of 12 participants or any combination in between. In T.120 conferences, the data module does the Transcoding. The module supports various ITU-T T.120 standards for data transfer and application sharing in a multipoint conference. The Data Module supports the following standards: • ITU-T T.
Chapter 4 - Hardware Description Input/Output Cards Input/Output (I/O) Cards connect the Functional Modules to external systems and networks. The I/O Cards are housed behind the Backplane, opposite the Functional Modules. The I/O Cards, which are small and simple, are installed via the rear panel of the MGC. A connector at the rear of each I/O card connects the card to the Backplane.
MGC Hardware and Installation Manual The IO-4 card connects four PRI/Leased connections from the MGC rear panel to a Net-4 ISDN/T1-CAS Network Interface Module. Figure 4-35: ISDN /T1-CAS Network connection for four spans • The IO-8 card connects eight PRI/Leased connections from the MGC rear panel to a Net-8 ISDN/T1-CAS Network Interface Module.
Chapter 4 - Hardware Description • The IO-25 Card connects one ATM connection from the MGC rear panel to an ATM-25 Network Interface Module. Figure 4-37: One 25MB ATM Network connection • The IO-155 Card connects one ATM connection from the MGC rear panel to an ATM-155 Network Interface Module.
MGC Hardware and Installation Manual • The LAN-IO Card connects one H.323 connection from the MGC rear panel to an H.323 Network Interface Module. Figure 4-39: One H.323 Network connection • The Music-IO Card enables importing audio music from an external source such as a CD player, tape, radio, etc. It includes a Line-in jack and headphone output. The music is available to all endpoints.
Chapter 4 - Hardware Description Greet and Guide Hardware Kit When an Audio+ card is active on the MCU, you are not required to install the Greet and Guide Hardware kit. In the Audio+ card this is replaced by the IVR functionality (a software module). If you are upgrading the MCU to the Greet and Guide mode, you need to install the Greet and Guide hardware kit.
MGC Hardware and Installation Manual Installing the Audio Message Daughter Card on the standard Audio Module 1. Unscrew the screws on the front panel of the MGC unit that secure the Functional Module. 2. Unlatch the top and bottom latches by pressing up and away the top latch and down and away the bottom latch. Top latch AUDIO Stby Fail Active Bottom latch 3. Use the plastic latches to pull the Functional Module out of its slot in the Backplane. 4.
Chapter 4 - Hardware Description Message Card Audio Card Male Connector Female Connector a b a Line Up Holes to Secure Cards b 6. Slide in the Audio module. 7. Push the Audio module firmly into the backplane, making sure it is properly seated in its slot. 8. Tighten the screws on the front panel of the MGC unit to secure the Audio module.
MGC Hardware and Installation Manual Backplane H.323 I/O H.323 Network I/F Rear ATM I/O ATM Network I/F NET I/O ISDN Network I/F MUX MUSIC I/O Audio Video Data Main Control Module Front Power Supply Module 2. Tighten the screws on the rear panel of the MGC unit to secure the Music I/O card. Enabling the Audio Message Daughter Card and Music I/O Card in the MCU Software Once the Audio Message daughter card and the Music I/O card are installed, the system automatically identifies them.
Chapter 4 - Hardware Description 1. Select Edit "system.cfg" from the MCU Utils sub-menu. The SysConfig dialog box opens.
MGC Hardware and Installation Manual 2. Double-click on the GREET_AND_GUIDE line in the Section box. The Greet and Guide hardware items appear in the Item = Value box. These values are set according to the Hardware installed in the system.
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5 System Maintenance The MGC is designed with ease of maintenance in mind. Most components are hot swappable and are accessible directly via the front panel or the rear panel. Each module includes LED indicators, which reflect the state of the module. The LEDs are located on the front panel of the MGC. All external connectors are located on the rear panel. The main power switch is also located on the rear panel.
Chapter 5 - System Maintenance Controls and Indicators MGC Unit Front Panel The front panel of the MGC unit contains a number of controls, components, and indicators for using the MGC system. Figure 5-1 and Figure 5-2 show the front panel of the MGC-50 and MGC-100 and all their elements.
MGC Hardware and Installation Manual Functional Modules Main Control Module CONT Critical PRI-8 POLYCOM Major Minor L0 Ejectors LEDs MGC-50 MG-323 AUDIO AUDIO VIDEO VIDEO VIDEO VIDEO Stby Stby Stby Stby Stby Stby Stby Stby Fail Fail Fail Fail Fail Fail Fail Fail Active Active Active Active Active Active Active Active Line 1 Line 2 Line 3 Line 4 Power L1 L2 L3 Line 5 Line 6 Line 7 Line 8 PWR OUT Floppy Disk Drive COM Port Figure 5-2: MGC-50 front panel LED Indicat
Chapter 5 - System Maintenance • 7 LEDs on Net-E1/Net-T1 ISDN Network Interface Module, Net-4 ISDN Network Interface Module, ATM Network Interface Module and H.323 Network Interface Module • 5 LEDs on NET-2 ISDN Network Interface Module • 11 LEDs on NET-8 ISDN Network Interface Module The system uses these LEDs to indicate operating states. The LEDs on the Net-2/Net-4/Net-8 are tri-color. Depending on the states of the LEDs inputs, the LED can be off, green, red or yellow.
MGC Hardware and Installation Manual Table 5-1: Front Panel LEDs Module Name Color Description Functional Modules STBY Green On during normal operation (refer to Table 5-2) FAIL Red On when a failure has occurred (refer to Table 5-2) ACTIVE Yellow On when the module is handling a conference (refer to Table 5-2) Net-E1/Net-T1 ISDN, ATM and H.
Chapter 5 - System Maintenance The three Functional Module LEDs function as a group. Each state of the Functional Module and its associated LED array is described in Table 5-2. The (IDLE, ACTIVE, FAILURE, and PARTIAL FAILURE) states are the operational modes of the Functional Module. The (RESET, WAITING FOR MCMS and LOADING SOFTWARE) indicates the stages during the startup procedure of the Functional Module.
MGC Hardware and Installation Manual MGC Unit Rear Panel The rear panel of the MGC-100 and MGC-50 contains a number of controls for using the MGC unit. Figure 5-3 AND Figure 5-4 show the back panel and labels all elements of the MGC-50/100.
Chapter 5 - System Maintenance Slot A Main Control Module Cover IO Card COM 1 LAN Fuse Main Switch AC Inlet RJ45 Connector Fan Figure 5-4: MGC-50 rear panel controls The main power switch is used during installation, and replacement of fans, main control module and power supply since the functional modules are hot swappable. The switch includes an AC fuse.
MGC Hardware and Installation Manual Corrective Maintenance Corrective maintenance refers to changing or replacing an element of the system that is faulty.
Chapter 5 - System Maintenance Replacing a Functional Module The following procedure is applicable for both the MGC-100 and the MGC50. All Functional Modules are hot-swappable and can be replaced with the system running. Use the following procedure to replace a faulty Functional Module: 1. Unscrew the screws on the front panel of the MGC that secure the Functional Module. 2. Use the plastic ejectors to pull the Functional Module out of its slot in the Backplane. 3.
MGC Hardware and Installation Manual 8. Referring to the labels, reconnect the external connections to the I/O card. Replacing the Fuse Use the following procedure for replacing the fuse in the MGC-50: This procedure is also relevant for earlier versions of the MGC-100. Current MGC-100 units are provided with a circuit breaker instead of a fuse. 1. If the MCU is working, exit the MGC Manager application and turn off the MCU. Otherwise, skip this step. 2. Switch off the power in the MGC unit. 3.
Chapter 5 - System Maintenance 2. Pull on the handle of the Power Supply Module to pull the module out of its slot in the Powerplane. 3. Carefully slide the Power Supply Module out through the front panel. 4. Slide in the replacement Power Supply Module. 5. Push the Power Supply Module firmly into the Powerplane making sure it is properly seated in its slot. 6. Tighten the 4 screws on the front panel of the MGC-100 that secure the Power Supply Module.
MGC Hardware and Installation Manual 4. Optional. Remove the two jack connectors from the fan panel to completely remove the fans from the MCU. 5. Disconnect the AC input (J1) and the 12V/5V Sense connectors (J2). 6. Disconnect the +5V and -5V power cables using a 9/16” (13 mm) M8 nut driver. Tighten the two flat washers; the spring washer and the nut back to their +5V and -5V screws on the faulty unit to be shipped to the manufacturer. These items are delivered with the new power supply module. 7.
Chapter 5 - System Maintenance 8. From the rear, carefully slide the Power Supply Module out through the front panel and remove. 9. Slide in the replacement Power Supply Module from the front panel and push it firmly into its place. 10. Tighten the six screws on the front panel of the MGC-50 that secure the Power Supply Module. 11. Connect the red power cable to the +5V screw and ensure that the nut is well fastened and secured: — First install the flat washer.
MGC Hardware and Installation Manual 12. Connect the black power cable to the -5V screw in the order described in step 11 and ensure that the nut is well fastened and secured. 13. Reconnect the AC input (J1) and the 12V/5V Sense connectors (J2). 14. Reposition the fans cover panel on the rear panel. Ensure that the two fan connectors are in their place and tighten the six screws to secure the fan cover to its place. 15. Connect the AC power cable to the MCU and turn on the MCU.
Chapter 5 - System Maintenance Fan Replacement for the MGC-50 The fans are not hot swappable and cannot be replaced with the system running. Fans are located on the rear pane of the MGC-50. Use the following procedure to replace a faulty fan: 1. Exit the MGC Manager application, turn off the MCU and unplug it from the AC outlet. 2. Using a standard Phillips screwdriver, remove six spring-loaded screws from the fans cover on the MCU’s rear panel.
MGC Hardware and Installation Manual 5. Unscrew the four screws on the Fans front panel that secure the faulty fan to the fan panel. 6. Remove the fan. 7. Position the replacement fan correctly on the rear panel. 8. Tighten the four screws on the Fans front panel that secure the fan. 9. Insert the connector to its place in the Fans panel and ensure that the panel mount locks are locked. 10. Connect the two connectors of the power supply cable. 11.
Chapter 5 - System Maintenance 10. Tighten the four screws on the front panel of the MGC that secure the Main Control Module. 11. Reconnect all internal cables to the Main Control Module. 12. Close the cover of the Main Control Module on the rear panel of the MGC. 13. Connect the power cord to the power source and switch ON the main power switch on the rear panel. 14. Connect to the MCU via the MGC Manager, as described in the MGC User’s Guide.
MGC Hardware and Installation Manual Troubleshooting The MGC unit provides on-line diagnostics for quick isolation and resolution of problems. The card status and the MCU's status can be viewed in the Browser and the Status areas of the MGC Manager main window. The full messages regarding the cards status can also be viewed in the Status box of the Card Settings dialog box. For more information, see the MGC Administrator’s Guide, Chapter 4, “MCU Card Management”.
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Appendix A: Interfaces Pin Assignment PRI Port Assignment Pin 8 Pin 1 Table A-1: PRI Port Assignment Pin Signal Name 1 Receive Ring 2 Receive Tip 3 No connection 4 Transmit Ring 5 Transmit Tip 6 No connection 7 No connection 8 No connection A-1
Appendix A: Interfaces Pin Assignment LAN PIN Assignment TD+ 1 TDRD+ 8 RD- Figure A-1: LAN Pin Assignment Alarms Port Pin Assignment Minor Major Critical Pin 1 Critical Major Minor Figure A-2: Alarm Port Pin Assignment A-2
MGC Hardware and Installation Manual RS-232 Pin Assignment DCD RxD TxD DTR GND Pin 1 RI CTS RTS DSR Figure A-3: RS-232 Pin Assignment Table A-1: PRI Port Assignment Pin Description 1 Data Carrier Detect (DCD) 2 Receive Data (RXD) 3 Transmit DATA (TXD) 4 Data Terminal Ready (DTR) 5 GROUND (GND) 6 Data Set Ready (DSR) 7 Clear to Send (CTS) 8 Ring Indicator (RI) A-3
Appendix A: Interfaces Pin Assignment Serial Port Connectors Pin out Assignment SOURCE Return DCE Return DCE SIGNAL DESIGNATION PIN NO. Transmitted Data (B) 14 Transmit Signal Element (A) 15 Received Data (B) 16 Receiver Signal Element Timing (A) 17 Local Loopback 18 Request to Send (B) 19 DTE DTE Ready (A) 20 DTE Remote Loopback 21 Return DCE Ready (B) 22 Return DTE Ready (B) 23 DTE Ext. Transmit Element Timing (A) 24 DCE Test Mode 25 DTE Return PIN NO.
MGC Hardware and Installation Manual PIN NO. SOURCE SIGNAL DESIGNATION Common Signal Ground B DCE Clear to Send D DCE Data Carrier Detect DCE SIGNAL DESIGNATION SOURCE A Chassis Ground Common C Request to Send DTE F E Data Set Ready DCE DTE PIN NO.
Appendix A: Interfaces Pin Assignment Cables For the MPI-8 Network Interface Module There are three new cables for interfacing with the MPI-8 Network Interface Module in DCE. The difference in the cables is that they have certain pins that are crossed. A-6 1. Part Number: CON2044A – Adapter RS-449 (BD37) to V.35 (female) crossed DCE. 2. Part Number: CON 2045A- Adapter RS-449/EIA530 Crossed DCE (DB37M/DB37F). 3. Part Number: CON2046A- Adapter RS-449/RS-449 Crossed DCE (DB37M/DB37F).
