Specifications

ManualsBrandsBlack Box ManualsComputer equipmentLocal Mux-6

Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500)

FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746

Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018

Web site: www.blackbox.com • E-mail: info@blackbox.com

CUSTOMER

SUPPORT

INFORMATION

MARCH 2003

MT1000A-13

MT1000A-85

MT1000A-E1-13

MT1000A-E1-85

T1 and E1 Fiber Muxes

Summary of content (44 pages)

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MARCH 2003 MT1000A-13 MT1000A-85 MT1000A-E1-13 MT1000A-E1-85 T1 and E1 Fiber Muxes CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) FREE technical support 24 hours a day, 7 days a week: Call 724-746-5500 or fax 724-746-0746 Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 Web site: www.blackbox.com • E-mail: info@blackbox.
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FCC AND IC RFI STATEMENTS FEDERAL COMMUNICATIONS COMMISSION AND INDUSTRY CANADA RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
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T1 AND E1 FIBER MUXES INSTRUCCIONES DE SEGURIDAD (Normas Oficiales Mexicanas Electrical Safety Statement) 1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. Todas las instrucciones de operación y uso deben ser seguidas. 5.
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TRADEMARKS/WARNINGS TRADEMARKS USED IN THIS MANUAL ST is a registered trademark of AT&T. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners. WARNING These products are equipped with a laser diode. Please observe the following precautions: • Before turning on the equipment, make sure that the fiber optic cable is intact and is connected to the transmitter. • Do not attempt to adjust the laser drive current.
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T1 AND E1 FIBER MUXES Contents Chapter Page 1. Specifications ............................................................................................................................................................6 2. Introduction..............................................................................................................................................................8 2.1 Overview .....................................................................................................
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CONTENTS Chapter Page 5. Management ...........................................................................................................................................................24 5.1 Setting Terminal Communication................................................................................................................24 5.1.1 Setting the Terminal Communication Parameters.........................................................................24 5.1.2 Entering the Terminal Session ....
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T1 AND E1 FIBER MUXES 1. Specifications Fiber Optic Interface (All Models) Standards — ITU-T Rec. G.956 Data Rates — MT1000A-85 and MT1000A-13: 6.176 Mbps, nominal; MT1000A-E1-85 and MT1000A-E1-13: 8.448 Mbps (E2 link), nominal Maximum Distance — MT1000A-85: Multimode up to 3 km (1.9 miles); MT1000A-13: Single-mode up to 48 km (29.8 miles); MT1000A-E1-85: Multimode up to 4 km (2.5 miles); MT1000A-E1-13: Single-mode up to 44 km (27.
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CHAPTER 1: Specifications T1 Channel Interfaces (MT1000A-85 and MT1000A-13) Standards — ITU-T Rec. G.703, G.824 Line Data Rate — 1.544 Mbps, nominal Line Encoding — B8ZS Line Impedance — 100 Ω balanced Transmit Levels — ±2.8V ± 10% Receive Levels — 0 dB to -2.4 dB Jitter Performance — Per ITU-T Rec. G.824, Para. 4 Connectors — (4) RJ-48C E1 Channel Interfaces (MT1000A-E1-85 and MT1000A-E1-13) Standards — ITU-T Rec. G.703, G.823 Line Data Rate — 2.
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T1 AND E1 FIBER MUXES 2. Introduction 2.1 Overview The T1 and E1 Fiber Muxes (available in 850-nm and 1310-nm versions) combine four T1(1.544 Mbps) or E1 (2.048 Mbps) channels into a single fiber optic link that boasts data rates of either 6.176 Mbps (T1 versions) or 8.448 Mbps (E1 versions). On the fiber optic side, the multiplexor’s interface gives you a secure link that communicates in areas susceptible to electromagnetic interference while increasing the maximum connection range.
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CHAPTER 2: Introduction MODELS AVAILABLE: • T1 Fiber Mux 850-nm (MT1000A-85) • T1 Fiber Mux 1300-nm (MT1000A-13) • E1 Fiber Mux 850-nm (MT1000A-E1-85) • E1 Fiber Mux 1300-nm (MT1000A-E1-13) 2.2 Physical Description The T1 or E1 Fiber Mux is a compact unit that’s only 1U (1.75") high, so installation on a desktop or shelf is easy. We also offer a Rackmount Kit (RM1001), which enables you to install the mux in a 19" rack.
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T1 AND E1 FIBER MUXES Table 2-1. Fiber optic characteristics. Model (Wavelength) Fiber Type Transmitter Typical Output Receiver Typical Type Power Sensitivity Maximum Range T1 Versions MT1000A-85 (850 nm) MT1000A-13 (1310 nm) 62.5/125 multimode 9/125 single-mode VCSEL Laser -18 dBm -12 dBm -32 dBm -34 dBm 3 km (1.9 miles) 48 km (29.8 miles) E1 Versions MT1000A-E1-85 (850 nm) 62.5/125 multimode MT1000A-E1-13 (1310 nm) 9/125 single-mode VCSEL Laser -18 dBm -12 dBm -32 dBm -34 dBm 4 km (2.
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CHAPTER 2: Introduction 2.3.4 TEST AND DIAGNOSTIC CAPABILITIES Each mux comes with comprehensive test and diagnostics capabilities, including local loopback on the fiber link interface and remote loopbacks on each channel link. The remote loopbacks are activated on the remote units. To perform activation, send a special test sequence through the fiber link. An automatic self-test on power-up further enhances maintenance. For activation of the above and other loopbacks, see Chapter 6.
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T1 AND E1 FIBER MUXES 2.3.5 MANAGEMENT AND MONITORING The muxes are equipped with a front-panel RS-232 serial management port (“CONTROL”). This port operates at user-selectable rates of 9.6, 19.2, and 38.4 kbps over a crossover cable (included). At the current time, the management interface supports a single management method: via a supervision terminal. This can be an ASCII terminal connected to the RS-232 port (or a PC running a terminal emulation program).
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CHAPTER 3: Installation and Setup 3. Installation and Setup 3.1 Introduction The T1 and E1 Fiber Muxes, shipped completely assembled, can be installed as desktop units or mounted in 19" racks with the optional Rackmount Kit (RM1001). This chapter provides mechanical and electrical installation procedures for muxes, including the setting of the internal jumpers and connecting the mux’s various interfaces.
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T1 AND E1 FIBER MUXES 3.2.4 FRONT AND REAR CLEARANCE Allow at least 36 inches (91.4 cm) of frontal clearance for operator access. Also allow at least 4 inches (10.2 cm) clearance at the rear of the mux for your interface cable connections. When planning the routing of fiber optic cables, avoid sharp bends. 3.2.5 AMBIENT REQUIREMENTS The mux’s ambient operating temperature is 32 to 122°F (0 to 50°C), at a relative humidity of up to 90%, noncondensing. 3.
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CHAPTER 3: Installation and Setup WARNING • Only qualified and authorized service personnel should access the inside of the equipment. To avoid accidental electric shock, always disconnect the mux from the power line and from all the cables before removing the cover. • Dangerous high voltages are present inside the mux when it is connected to power and/or to the links. Moreover, under external fault conditions, dangerous high voltages may appear on the lines connected to the mux.
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T1 AND E1 FIBER MUXES Figure 3-1. Internal boards on MT1000A-85 and MT1000A-13. Table 3-1. Jumpers on MT1000A-85 and MT1000A-13. Jumper Description JP23 Channel Alarms Controls the operation of the alarms, whether they are ignored or processed. JP26 Service Channel SW1-1 V-Agent Controls the operation of the voice service channel. Controls the downloading of an updated version of the FLASH memory when a malfunction occurs in the normal download process. (See Chapter 5 for more information.
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CHAPTER 3: Installation and Setup Figure 3-2. Internal boards on MT1000A-85-E1 and MT1000A-13-E1. Channel Interface The nominal impedance of each interface is selected by a group of five jumpers. The four groups include: JP4, JP8, JP12, JP16, JP20 for Channel 1;JP3, JP7, JP11, JP15, JP19 for Channel 2; JP2, JP6, JP10, JP14, JP18 for Channel 3;JP1, JP5, JP9, JP13, JP17 for Channel 4.
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T1 AND E1 FIBER MUXES Table 3-2. Jumpers on MT1000A-85-E1 and MT1000A-13-E1. Jumper Description JP23 Channel Alarms Controls the operation of the alarms, whether they are ignored or processed. JP26 Service Channel Controls the operation of the voice service channel. SW1-1 V-Agent Controls the downloading of an updated version of the FLASH memory when a malfunction occurs in the normal download process. (See Chapter 5 for more information.) SW1-2, 3, Not in use.
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CHAPTER 3: Installation and Setup 3.5 Making Connections 3.5.1 CONNECTOR LOCATION The figures below show typical rear panels on the muxes. Figure 3-3. Rear-panel connectors on T1 versions (top) and E1 versions (bottom). 3.5.2 CONNECTING THE CHANNELS ON T1 VERSIONS (MT1000A-85 AND MT1000A-13) Each channel interface on the T1 muxes includes one RJ-45 connector. To connect the channels, connect each of the cables to the connector(s) corresponding to the interface in use.
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T1 AND E1 FIBER MUXES 3.5.6 CONNECTING THE SERVICE CHANNEL ON BOTH T1 AND E1 VERSIONS To connect the service channel, connect the headset to the service channel socket located in the SYSTEM section of the front panel. 3.5.7 GROUNDING The connection of the protective ground is accomplished through one of the pins of the power connector.
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CHAPTER 4: Operation 4. Operation In this chapter, you’ll find detailed instructions for operating the T1 or E1 Fiber Mux. The information presented in this chapter includes a description of the mux’s front-panel controls and its operating procedures (turning on, front-panel indications, and turning off). 4.1 Front-Panel Indicators, Connectors, and Pushbutton Figure 4-1 shows the mux’s front panel.
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T1 AND E1 FIBER MUXES Table 4-1 (continued). Front-panel indicator, button, or connector and corresponding function. Number Indicator/Button/Connector Function 5 SYSTEM CALL pushbutton When the service channel is enabled, pressing this button sends an alert to the remote operator to signal that the local operator wants to speak. 6 SYSTEM headset jack Miniature jack for connection of headset to the service channel. 7 LOC TEST indicator Lights when the local loopback is activated on the local mux.
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CHAPTER 4: Operation Table 4-1 (continued). Front-panel indicator, button, or connector and corresponding function. Number Indicator/Button/Connector Function 21 SYNC LOSS CH3 indicator Lights when the corresponding channel interface reports loss of input signal. 22 SYNC LOSS CH4 indicator 23 CONTROL connector Connection to the management interface. 4.2 Operating Instructions 4.2.1 TURNING THE MUX ON To turn on the mux, set at least one of the two rear POWER switches to ON.
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T1 AND E1 FIBER MUXES 5. Management A terminal can be used for configuration, monitoring, and maintenance operations. At this time, the T1 or E1 Fiber Mux provides one terminal management mode (Monitor mode) with a supervisory ASCII ANSI terminal or a PC emulating an ASCII ANSI terminal connected directly to the mux’s CONTROL port. SLIP mode, which uses a multidrop connection to an SNMP management workstation, is reserved for future use. 5.1 Setting Terminal Communication 5.1.
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CHAPTER 5: Management If the autodetection still fails, reset the terminal emulation program and try a baud rate that differs from the one you used in step 2. Once you reset the baud rate, proceed to step 3 and begin the autodetection again. If this fails, call Technical Support for assistance. 4. To enter the Monitor mode, press , type monitor, and press again. 5. At this point, you are prompted to enter the password.
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T1 AND E1 FIBER MUXES Figure 5-3. Menu map. 5.2 Status Monitoring You can monitor the transmission status at the T1 or E1 and fiber optic interfaces (Interface Status) and the status of the mux’s functional blocks (Internal Status). 5.2.1 T1 OR E1 AND FIBER OPTIC INTERFACE STATUS 1. In the Main Fibermux menu (Figure 5-2), choose option 1, Status. The Status screen appears (Figure 5-4). STATUS -----0. 1. 2. Exit. Interface status. Internal status. Enter a choice: Figure 5-4. Status screen.
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CHAPTER 5: Management 2. Choose option 1, Interface status. The Interface Status screen appears, displaying one of the following states for each T1 or E1 and fiber optic interface in the local and remote muxes (see Figure 5-5): • Data signal The input signal is detected on the respective line. • Signal loss A loss of input signal on the respective line. • AIS An Alarm Indication Signal (“all ones”) is detected on the respective line.
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T1 AND E1 FIBER MUXES INTERNAL STATUS ---------------- | | | | | | | | ----------------------------------------------------------------Element | Local | Remote ----------------------------------------------------------------Elastic store T1 channel 1 | Valid | Valid Elastic store T1 channel 2 | Valid | Valid Elastic store T1 channel 3 | Valid | Valid Elastic store T1 channel 4 | Valid | Valid Demultiplexer | Valid | Valid Power supply 1 | Valid | Valid Power supply 2 | Valid | Valid ---------------------
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CHAPTER 5: Management CONFIGURATION ------------0. 1. 2. 3. 4. 5. Exit. View interface configuration. Change local interface configuration. Change remote interface configuration. Special configuration actions. Reset to default configuration. Enter a choice : Figure 5-7. Configuration screen. 2. Choose option 1, View interface configuration. The View Interface Configuration screen appears. The screen shows whether any loop is connected in the local or remote mux (see Figure 5-8).
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T1 AND E1 FIBER MUXES 5.3.2 SETTING/RESETTING LOOPBACKS IN THE LOCAL MUX 1. In the Configuration screen, choose option 2, Change local interface configuration. The Change Local Interface Configuration screen appears (see Figure 5-9). CHANGE LOCAL INTERFACE CONFIGURATION ------------------------------------ NOTE: To change the configuration of the interface, select it in the next format: decimal number from 1 to 6, 1 for T1 channel 1, 2 for T1 channel 2, ...
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CHAPTER 5: Management CHANGE REMOTE INTERFACE CONFIGURATION ------------------------------------ NOTE: To change the configuration of the interface, select it in the next format: decimal number from 1 to 6, 1 for T1 channel 1, 2 for T1 channel 2, ... , 5 for main link and 6 for backup link. 0. 1. 2. Exit. Interface. Configuration. T1 channel 1 Normal Enter a choice : Figure 5-10. Change Remote Interface Configuration screen. NOTE On E1 versions, the screen’s T1 entries are replaced by E1.
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T1 AND E1 FIBER MUXES To select the fiber optic link redundancy mode on muxes with the optional dual fiber link board installed: 1. In the Configuration screen, choose option 4, Special configuration actions. The Special Actions menu screen appears (see Figure 5-11). SPECIAL ACTIONS MENU -------------------- 0. 1. 2. Exit. Select fiber optic link. Remote loop configuration. Normal Normal Enter a choice : Figure 5-11. Special Actions menu. 2.
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CHAPTER 5: Management RESET TO DEFAULT CONFIGURATION ------------------------------ NOTE : After performing this operation all interfaces will be set to NORMAL configuration. 0. 1. Exit. Reset to default configuration. Enter a choice : Figure 5-12. Reset to Default Configuration screen. 2. Choose option 1, Reset to default configuration, and type reset. 3. Choose 0, Exit, to return to the Configuration screen. 5.
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T1 AND E1 FIBER MUXES 5.5 Viewing Hardware and Software Updates To view the last hardware and software updates: 1. In the Main Fibermux menu, choose option 4, Version information. The Version Information screen appears (see Figure 5-14). VERSION INFORMATION ------------------Hardware revision is C Software version is 2.24 0.Exit. Figure 5-14. Version Information screen. 2. Choose 0, Exit, to exit to the Main Fibermux menu. 5.6 Downloading Software To download a new software revision: 1.
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CHAPTER 6: Testing and Diagnostics 6. Testing and Diagnostics This chapter includes a description of the mux’s diagnostic tests and troubleshooting procedures. 6.1 Diagnostic Tests The mux supports three types of loopback connections: • local loopbacks in the local mux unit, • local loopbacks in the remote mux unit, and • remote loopbacks in the remote T1 or E1 (depending on the version you have). 6.1.
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T1 AND E1 FIBER MUXES Figure 6-1. T1 or E1 local loopback in the local mux. Figure 6-2. Fiber optic link local loopback in the local mux.
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CHAPTER 6: Testing and Diagnostics 6.1.2 LOCAL LOOPBACKS IN THE REMOTE MUX You can set two types of local loopback connections in the remote mux from a terminal hooked to the local mux: • T1 or E1 local, set for each T1 or E1 interface separately. • Fiber optic link local. The local loopbacks in the remote unit are activated by sending a special activation sequence through the link when entering the appropriate command from the terminal.
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T1 AND E1 FIBER MUXES Figure 6-4. T1 or E1 local loopback in the remote mux. 6.1.3 FIBER OPTIC REMOTE LOOPBACK When the fiber optic remote loopback is activated (remote loopback is configured from the Special Actions menu), the remote channel interfaces return the received signal via the transmit path of the channel. Simultaneously, the remote mux sends an unformed all-ones signal to all of the channels. Figure 6-5 shows the fiber optic remote loopback connection. Figure 6-5. Fiber optic remote loopback.
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CHAPTER 6: Testing and Diagnostics 6.2 Troubleshooting If a problem occurs, check the displayed indications and refer to Table 4-1 in Chapter 4. Identify the trouble symptoms and perform the actions listed under Corrective Measure in the order given until the problem is corrected. Problem: The mux is “dead.” Probable Cause #1: No power. Corrective Measure #1: Check that both ends of the power cable are properly connected. Probable Cause #2: Blown fuse.
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T1 AND E1 FIBER MUXES Problem: Only one of the units connected to a local mux does not receive the remote equipment. Probable Cause #1: Equipment problem. Corrective Measure #1: Check the equipment connected to the local channel and its cable connections. Check the remote channel equipment. Probable Cause #2: Defective mux. Corrective Measure #2: Activate the fiber optic link local loopback in the local mux. Check that any previously lit alarm indicators related to the channel turn OFF.
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APPENDIX: Interface Specifications Appendix. Interface Specifications This appendix covers the specifications for the channel, ALARMS, CONTROL, and power connectors. A.1 Channel Connectors Each channel interface has one RJ-45 eight-pin connector. Connector wiring is listed in Table A-1. Table A-1. RJ-45 channel connector, pin functions.
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T1 AND E1 FIBER MUXES A.3 CONTROL Connector The front-panel supervisory port has a standard RS-232 DTE interface. The physical interface is a DB9 female connector, labeled CONTROL. Connector wiring is shown in Table A-2. Table A-2. CONTROL DTE connector, pin functions.