T3SU 300 T3 Service Unit USER MANUAL 61200217L1-1B December 1998 1200217L1 T3SU 300 1200217L2 T3SU 300 with Internal Modem 1200218L1 HSSI DTE Interface Card 1200219L1 V.
Trademark Information: OpenView is a trademark of Hewlett-Packard Company. Spectrum is a registered trademark of Cabletron. Netview is a registered trademark of IBM. 901 Explorer Boulevard P.O. Box 140000 Huntsville, AL 35814-4000 Phone: (256) 963-8000 © 1998 ADTRAN, Inc. All rights reserved. Printed in USA.
ABOUT THIS MANUAL This manual is arranged so you can quickly and easily find the information you need. The following is an overview of the contents of this manual: • Chapter 1, Introduction, familiarizes you with T3 networks and T3SU 300 highlights and gives a brief explanation of options that may be purchased for use with the T3SU 300.
Notes provide additional useful information. Cautions signify information that could prevent service interruption. Warnings provide information that could prevent damage to the equipment or endangerment to human life. IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS When using your telephone equipment, please follow these basic safety precautions to reduce the risk of fire, electrical shock, or personal injury: 1.
FCC regulations require that the following information be provided in this manual: 1. This equipment complies with Part 68 of FCC rules. On the bottom of the equipment housing is a label showing the FCC registration number and ringer equivalence number (REN) for this equipment. If requested, provide this information to the telephone company. 2. If this equipment causes harm to the telephone network, the telephone company may temporarily discontinue service.
YEAR 2000 COMPLIANCE All ADTRAN transmission hardware and software products have been tested and found to be fully compliant with the YEAR 2000 requirements. This is true for all models and revisions regardless of the date of manufacture or delivery. Users who wish to independently verify that specific products are in compliance may contact ADTRAN Technical Support at 1-888-423-8726.
FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE 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. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
CANADIAN EQUIPMENT LIMITATIONS Notice: The Canadian Industry and Science Canada label identifies certified equipment. This certification means that the equipment meets certain telecommunications network protective, operational, and safety requirements. The Department does not guarantee the equipment will operate to the user’s satisfaction. Before installing this equipment, users should ensure that it is permissible to be connected to the facilities of the local telecommunications company.
Table of Contents Chapter 1. Introduction ..................................................................................................... 1-1 Product Overview ............................................................................................................... 1-1 T3 Overview ......................................................................................................................... 1-2 SNMP ........................................................................................
Table of Contents Line Length ................................................................................................................... 3-3 DS3 Timing.................................................................................................................... 3-3 DS3 Scrambler............................................................................................................... 3-4 Data Link ...........................................................................................
Table of Contents Port Status ..................................................................................................................... 4-5 Bandwidth..................................................................................................................... 4-6 DTE Leads ..................................................................................................................... 4-6 Chapter 5. Statistics...........................................................................
Table of Contents xii T3SU 300 User Manual 61200217L1-1
List of Figures Figure 2-1. T3SU 300 Rear View ....................................................................................... 2-4 Figure 2-2. T3SU 300 Front Panel...................................................................................... 2-6 Figure 2-3. Terminal Main Menu...................................................................................... 2-7 Figure 3-1. Configuration Main Menu ............................................................................ 3-2 Figure 3-2.
List of Figures Figure 6-4. Line Loopback Test .......................................................................................... 6-4 Figure 6-5. DTE Port Diagnostics Menu........................................................................... 6-5 Figure 6-6. Payload Loopback Test ................................................................................... 6-6 Figure 6-7. Payload BERT Test ...........................................................................................
List of Tables Table 3-1. Near End Alarm Trap Descriptions ............................................................. 3-16 Table 3-2. Far End Alarm Trap Descriptions .............................................................. 3-16 Table 3-3. MIB II Standard Trap Descriptions .............................................................. 3-17 Table 3-4. Network Test Trap Descriptions................................................................... 3-17 Table 3-5. DTE Port Trap Description .........
List of Tables xvi T3SU 300 User Manual 61200217L1-1
Chapter 1 Introduction PRODUCT OVERVIEW The T3SU 300 is a multiport DSU/CSU (data service unit/channel service unit) that provides access to T3 services. The unit provides a cost-effective, versatile approach for migrating T1 services to T3. The TDM (time division multiplexer) multiport design allows you to share the cost of a T3 line between multiple applications.
Chapter 1. Introduction link, or through the built-in V.34 modem (1200217L2 only). Advanced dial-out on trap capabilities through the built-in modem allow the T3SU 300 to contact remote hosts and alert them to DSX-3 network conditions (without dedicated management connections). The T3SU 300 is designed for either desktop use or installation in a 19-inch rack. The major features or the T3SU 300 are as follows: • Full feature multiport T3 DSU/CSU • Maximum of four user data ports (HSSI or high speed V.
Chapter 1. Introduction (LAN) port. The T3SU 300 supports the MIB-II standard, RFC 1213, and the ADTRAN Enterprise Specific MIB. MIB files are available from ADTRAN in the support section of the ADTRAN Web page at www.adtran.com. The term SNMP broadly refers to the message protocols used to exchange information between the network management system (NMS) and the managed devices, as well as to the structure of device management databases.
Chapter 1. Introduction INTERFACE OPTION CARDS Optional interface cards may be purchased to equip the T3SU 300 with up to three additional ports. Both HSSI and V.35 interface cards are available. HSSI Card The optional HSSI card plugs into one of the three card slots on the rear of the T3SU 300. With optional HSSI cards installed, the total 44.2 Mbps bandwidth of the T3 can be divided among the total number of ports to provide multiple data channels over the T3.
Chapter 1. Introduction WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within five years from the date of shipment if it does not meet its published specifications or fails while in service. For detailed warranty, repair, and return information refer to the ADTRAN Equipment Warranty and Repair and Return Policy Procedure. Return Material Authorization (RMA) is required prior to returning equipment to ADTRAN.
Chapter 1.
Chapter 2 Installation and Operation UNPACK, INSPECT, POWER UP Receiving Inspection Carefully inspect the T3SU 300 for any damage that may have occurred in shipment. If damage is suspected, file a claim immediately with the carrier and contact ADTRAN Technical Support (see the back cover of this manual). Keep the original shipping container to use for future shipment or verification of damage during shipment.
Chapter 2. Installation and Operation The ADTRAN T3SU 300 MIB is available in the support section of the ADTRAN Web page at www.adtran.com. Customer Provides The customer provides an interface cable for each port used. Each cable should be either HSSI or V.35. Power Up Each T3SU 300 unit is provided with a captive eight-foot power cord, terminated by a three-prong plug which connects to a grounded 115 VAC power receptacle. Power to the T3SU 300 must be provided from a grounded 115 VAC, 60 Hz receptacle.
Chapter 2. Installation and Operation 2. After the flanges have been installed, position the T3SU 300 at the correct location within the rack and secure the mounting flanges to the mounting rails of the rack. 3. Make all network, DTE, and power connections to the rear of the unit. 4. Using the 8-position modular to DB-25 female connector and the 8-position modular to 8-position modular cable, connect a VT 100 terminal device to the CONTROL interface jack on the front panel of the unit.
Chapter 2. Installation and Operation NN DD Z V JJ MM R DS3 INTERFACE KK L V.
Chapter 2. Installation and Operation The alarm function can be disabled through the ALARM RELAY selection of the CONFIGURATION menu. DTE Port 1 (HSSI Interface) DTE port 1 is a built-in HSSI port that resides on the main board of the T3SU 300. The bandwidth of this port is configurable from 75 kbps to 44.2 Mbps in 75 kbps increments. When a single application requires the full 44.2 Mbps of bandwidth, the T3SU 300 does not have to be equipped with additional port cards.
Chapter 2. Installation and Operation LAN Port The LAN port is an 8-pin modular connector that provides a 10baseT ethernet LAN interface. This LAN interface is used for SNMP and TELNET control. DS3 Interface The DS3 network interface is a full-duplex circuit provided by two BNC coaxial cable connections. The receive data from the network is connected to the RX (In) connector while the transmit data from the T3SU 300 is connected to the TX (Out) connector.
Chapter 2. Installation and Operation 2. Using the ADTRAN-provided terminal interface cable adapter, connect the DTE port of a terminal to the 8-pin modular jack labeled Control on the front panel of the T3SU 300. 3. Initialize the terminal session. 4. Press Enter repeatedly until the password prompt appears. 5. Enter the password. The factory default password is adtran. The MAIN menu appears. See Figure 2-3. 6. Make selections by entering the number corresponding to the chosen parameter.
Chapter 2. Installation and Operation If you want to... Press... select an item the number corresponding to your choice, and then press the Enter key. scroll between screens within the same selection the up and down arrow keys. Additional screens are available when or is displayed in the right-hand side of the menu. return to the previous menu the ESC key. end the terminal session Ctl-C. refresh the display Ctl-R.
Chapter 2. Installation and Operation Logout The LOGOUT selection ends the terminal session and logs out of the system. Password entry is required before a new session can begin. LED Descriptions The T3SU 300 has LED status indicators for remote access, the network port, and for each individual DTE port. These LEDs are identified as follows: Remote Active This LED is solid when a remote configuration session is taking place through a TELNET session or from the remote end T3SU 300.
Chapter 2. Installation and Operation LED Condition Off No option card is installed. Flashing green Interface is available but not configured. On green Interface is available and configured. On red DTE fault condition (for HSSI interface, no clock from DTE). On yellow For HSSI interface, terminal available (TA) signal inactive. In Test This LED is active when the DTE interface is in a loopback condition or is performing a BERT test.
Chapter 3 Configuration The T3SU 300 can be configured locally and remotely. Local configuration is accomplished through a 10baseT ethernet connection, a SLIP/PPP port, or a VT 100 terminal. Remote configuration can take place through the T3 datalink using a local T3SU 300. The CONFIGURATION menu consists of the following submenus relating to specific interfaces or functions: DS3 NETWORK DTE PORTS SYSTEM MANAGEMENT UTILITIES SAVE CONFIGURATION The Main configuration terminal menu is shown in Figure 3-1.
Chapter 3. Configuration Figure 3-1. Configuration Main Menu DS3 NETWORK Select 1 DS3 NETWORK to access the network configuration parameters. Configure the T3SU 300 network settings to match the T3 signal received from the service provider. During remote configuration, this menu is read-only. The DS3 NETWORK CONFIGURATION menu is shown in Figure 3-2. Descriptions of the DS3 NETWORK fields follow the figure.
Chapter 3. Configuration Figure 3-2. DS3 Network Configuration Menu DS3 Framing Set the framing format to match the format of the receive signal at the network interface. C-bit parity and M13 framing formats are supported. Line Length Set the line length to reflect the physical length of the DS3 network line. Set to LONG if the cabling distance exceeds 50 feet; set to SHORT if the distance is less than 50 feet.
Chapter 3. Configuration DS3 Scrambler Enable this option to scramble the DS3 payload data. This prevents certain transport equipment from falsely reporting alarms. Data Link Set to ENABLE to allow for remote configuration. When enabled, the T3SU 300 provides a channel between the local and the remote DSU for point-to-point remote configuration.
Chapter 3. Configuration Figure 3-3. DTE Ports Menu Port Selections 1-4 Select DTE PORT 1, 2, 3, or 4 to access the following port configuration parameters. Configure each DTE port to be compatible with the DTE equipment attached to it. A PORT CONFIGURATION menu example is shown in Figure 3-4. Descriptions of the individual fields follow the illustration.
Chapter 3. Configuration Figure 3-4. Port Configuration Menu (with V.35 interface card installed) Interface Type This read-only status field shows the interface type of the selected port (HSSI or V.35). Port Status This read-only status field displays one of the following messages to show the port status of the selected port: Inactive The port is installed, but idle. Activate a port through the PORT STATE field of this menu. Active The port has been configured and is passing data.
Chapter 3. Configuration Waiting The port has been configured and is waiting for the DTE to issue the appropriate handshaking signals. For the HSSI interface, the terminal equipment available (TA) signal must be asserted by the DTE. For V.35, DTR is required if the TR field in this menu is set to IDLE WHEN OFF; otherwise, DTR is ignored. Error An error condition such as loss of transmit clock has occurred. Not Installed An interface card is not installed in the selected port.
Chapter 3. Configuration Applying the settings briefly affects all ports of the T3SU 300. You may cancel changes made to the current PORT CONFIGURATION menu by pressing the ESC key. CS Selects the control mode for the clear to send (CS) lead. This field only appears if a V.35 interface card is installed in the selected port. Forced On The CS lead remains on and request to send (RS) is ignored as long as the unit is synchronized and able to pass data. Follow RS The CS state matches the RS state.
Chapter 3. Configuration Off When OOS/OOF or Test The SR lead remains on except when the unit receives an OOS/ OOF condition from the network or when the unit is executing a test. CD Selects the control mode for the carrier detect (CD) lead. This field only appears if a V.35 interface card is installed in the selected port. Forced On The CD lead remains active at all times. Off When OOS/OOF The CD control lead remains on unless the T3SU 300 receives an OOS/OOF condition from the network.
Chapter 3. Configuration Selecting Normal or Invert clocking options depends on your DTE, cable length, and cable characteristics. To verify error free operation, perform a DTE loopback test and a BERT test from the DTE. See the chapter Diagnostics on page 6-1 for information on performing these tests. Timed Profiles Using this option, you can allocate bandwidth based on the time of day.
Chapter 3. Configuration the selected profile (1 or 2) and apply whenever that profile is active. See Figure 3-6. Profile Time (1 and 2) Enter the time that you want the profile to become active. Enter the time in military time (i.e., 00:00:00 = 12 AM). The profile remains active until one of the following occurs: (1) the other profile’s activation time comes about, or (2) the profile is disabled manually through the ACTIVE PROFILE selection.
Chapter 3. Configuration either a SLIP/PPP or a 10baseT ethernet port. The SYSTEM MANAGEMENT CONFIGURATION menus are shown in Figure 3-7 and Figure 3-9. Scroll between the two menus using the up and down arrows on your keyboard. Figure 3-7. System Management Configuration Menu (1 of 2) Local IP Address Enter the T3SU 300 IP address. This IP address applies to the ethernet or auxiliary port (when configured for PPP or SLIP). This address is available from the network administrator.
Chapter 3. Configuration Gateway IP Address Enter the gateway IP address of the T3SU 300. This address is necessary only if the T3SU 300 and the network manager are connected through a gateway node. If an IP packet is to be sent to a different network, the unit sends it to the gateway. Remote IP Address Enter the remote T3SU 300’s IP address to provide network management access through the local T3SU 300. See the section Remote SNMP Management Application on page 7-7 for more information.
Chapter 3. Configuration modem). When set to PPP, SLIP, Dialup PPP, or Dialup SLIP, the ethernet port is disabled. If you select any of the dialup options, an additional menu item (DIALUP OPTIONS) appears on the second SYSTEM MANAGEMENT CONFIGURATION screen. See Figure 3-10. The DIALUP OPTIONS are described on page 3-19. Selections for AUXILIARY PORT MODE include local and dialup options for VT 100, PPP, and SLIP. If MANAGEMENT PORT (see page 3-13) is set to AUX PORT, the DIALUP OPTIONS are available.
Chapter 3. Configuration Write Community Name Enter the authentication strings used for SNMP management. Match the T3SU 300 to the SNMP manager for write privileges. Trap IP Addresses Enter up to five IP addresses of SNMP managers to which the T3SU 300 sends traps. Trap Generation This selection determines which trap types (if any) are generated by the unit. Use this menu to enable or disable NEAR END ALARM, FAR END ALARM, MIB II STANDARD, NETWORK TEST, and DTE PORT trap types.
Chapter 3. Configuration Table 3-1. Near End Alarm Trap Descriptions Trap Type If ENABLED, this trap is sent... Red Alarm (LOS) when the unit detects a loss of signal. Out of Frame (OOF) when the unit detects an out of frame condition. Yellow Alarm (RAI) when the unit detects an incoming RAI signal. Blue Alarm (AIS) when the unit detects an incoming AIS signal. Idle Signal when the unit detects an incoming idle signal (1100) over the entire DS3 bandwidth. Table 3-2.
Chapter 3. Configuration Trap Type If ENABLED, this trap is sent... Idle Signal when the unit receives indication from the far end unit through the FEAC channel that the far end unit is receiving an idle signal (1100) over the entire DS3 payload. Eqpt. Fail NSA when the unit receives indication from the network through the FEAC channel of a non-service-affecting failure in the network equipment. Eqpt.
Chapter 3. Configuration Table 3-5. DTE Port Trap Description Trap Type Port Status Change If ENABLED, this trap is sent... when the unit detects a change in any of the four DTE ports. These traps may be generated when a DTE interface card is plugged in, a cord is removed, a port is reconfigured, a port goes into an error condition due to cabling problems, or a port goes into a test mode.
Chapter 3. Configuration Unit ID Enter a name to identify the unit for management purposes. Terminal Timeout Set the amount of time the terminal or TELNET session can remain inactive before requiring re-entry of the password for access. This option can be disabled or set for 1 minute, 5 minutes, 15 minutes, 60 minutes, or one day. Date/Time Enter date and time information. Enter the time in military time (separated by colons). Enter the month, date, and year (separated by forward slashes).
Chapter 3. Configuration Figure 3-10. Dialup Options Menu Primary and Secondary Phone Numbers When the T3SU 300 dials out to send a trap, it first dials the PRIMARY PHONE NUMBER. If the call is unsuccessful, it tries the SECONDARY PHONE NUMBER. Attempts between the two numbers continue until a call is established and the trap is reported (or until each number’s maximum for redial attempts is reached). Initializing String The AT command entered in this field is used to initialize the modem.
Chapter 3. Configuration Maximum Redial Attempts The T3SU 300 attempts to establish a call the number of times entered in this field. If a successful call is not established after the final attempt, the T3SU 300 discards the trap messages. Idle Timeout Once a call is established and the trap messages are sent, the T3SU 300 remains online for the amount of seconds entered in this field. If the field is set to 0, the unit hangs up as soon as the trap is sent.
Chapter 3. Configuration Answer on Ring Enable or disable the T3SU 300’s ability to accept an incoming call. If enabled, incoming calls are automatically answered by the T3SU 300, allowing you to remotely perform management functions. Hangup Selecting this option forces the T3SU 300 to end an established call. Last Modem Response This status field displays the last modem response to the T3SU 300.
Chapter 3. Configuration : If the self test results are... Then... PASS the self test was successful and the unit is ready to use. BAD RAM DATA BAD RAM ADDRESS BAD CHECKSUM BAD BOOT SECTOR DS3F LOOPBACK FAILURE ARTE TERMINAL LOOPBACK FAILURE or ARTE INTERNAL LOOPBACK FAILURE contact ADTRAN Technical Support. See the inside back cover of this manual for more information. CONFIGURATION CORRUPT select SAVE CONFIGURATION from the main CONFIGURATION menu.
Chapter 3. Configuration SAVE CONFIGURATION The SAVE CONFIGURATION selection commits the current configuration changes to nonvolatile memory. If this option is not selected after making changes to the configuration, the unit reverts to its previous configuration when powered down.
Chapter 4 Status View port status information by selecting 1 STATUS from the MAIN menu. Information for the network port and the DTE ports is provided. The STATUS menu is shown in Figure 4-1. Figure 4-1.
Chapter 4. Status NETWORK PORT DS3 Framing The DS3 framing type is shown in this field. Network State This field displays the current condition of the network. Possible conditions are listed in the following table: Condition Description Normal The T3SU 300 is ready to pass data. Alarm The unit is currently receiving an alarm indication. See the RECEIVE ALARM field in this menu to determine the alarm type. In Test The unit is currently in test mode. The DIAGNOSmenu provides information on test type.
Chapter 4. Status Condition Description Blue (AIS) The unit is receiving a blue alarm condition from the network. A blue alarm occurs when consecutive 1010s are received in the information bits. This indicates that there is a transmission fault located either at or upstream from the transmitting terminal. OOF The unit detects an out of frame condition from the network. Idle The unit detects an idle sequence from the network. Service is immediately available for use.
Chapter 4. Status 4-4 Condition Description Normal No alarms are currently being received. RAI (Yellow Alarm) The unit is transmitting a yellow alarm from the network. This alarm is a signal sent back toward the source of a failed transmit circuit. The X-bits (X1 and X2) are set to zero. LOS (Red Alarm) The unit has lost the Rx signal. AIS (Blue Alarm) The unit is receiving a blue alarm condition from the network. A blue alarm occurs when consecutive 1010s are received in the information bits.
Chapter 4. Status DTE PORTS The following status information is available for DTE Ports 1-4. Interface Type The interface type of the port is shown in this field (HSSI or V.35). Port Status This field displays the current port status. Possible states are listed in the following table: 61200217L1-1 Condition Description Inactive The port is installed, but idle. Activate a port through the PORT STATE field of the DTE PORT CONFIGURATION menu. Active The port has been configured and is passing data.
Chapter 4. Status Bandwidth Displays the amount of bandwidth currently being used by the port. DTE Leads If a lead is active on the port, it is displayed in this field. The leads differ according to the interface type. Lead descriptions for both the HSSI and the V.35 interfaces follow. : HSSI Interface Leads Condition TA (terminal available) Asserted by the DTE to indicate readiness to transmit data.
Chapter 4. Status Table 4-1. LA and LB Leads LA LB Condition Off Off No test (normal) On Off Local line loopback Off On Remote line loopback On On Local DTE loopback V.35 Interface Leads RS: Request to send CS: Clear to send CD: Carrier detect TR: Data terminal ready SR: Data set ready LL: Local DTE port loopback RL: Remote port payload loopback TM: Test mode. Asserted by the T3SU 300 when either the network or the port is being tested.
Chapter 4.
Chapter 5 Statistics VIEWING STATISTICAL INFORMATION Select 2 STATISTICS from the MAIN menu to access STATISTICS menus. Alarm information and performance parameters are available for both the near and far ends of the network. Statistical information is given in screens based on the following time periods: the current 15-minute interval, a 24-hour history (divided into 96 15-minute intervals), and the totals for the previous 24 hours. Also, a cumulative alarm count is given.
Chapter 5. Statistics Figure 5-1. Main Local Statistics Menu Screen Alarm History The T3SU 300 keeps track of yellow, blue, and red alarms for the near end. View alarm history information in one of the three time period selections, or view a cumulative alarm count. Information in these fields is for the given time period (if any) since the last reset. The cumulative alarm count continues indefinitely until CLEAR ALL LOCAL STATISTICS is selected.
Chapter 5. Statistics Figure 5-2. Current Alarm Count Screen Figure 5-3.
Chapter 5. Statistics Performance Parameters View performance parameter information in one of the three time period selections. Information in these fields is for the given time period since the last reset. When viewing the 24-hour history statistics screen, use the left and right arrow keys to scroll through all 96 15-minute intervals. See Figure 5-4 through Figure 5-6 for examples of the performance parameter screens.
Chapter 5. Statistics Figure 5-4. Network Statistics Menu for Current 15-Minute Interval P-Bit Errored Seconds (PES) Number of seconds with one or more PCVs (P-bit coding violations), one or more out of frame defects, or a detected incoming AIS (alarm indication signal). This count is not incremented when UASs (unavailable seconds) are counted. P-Bit Severely Errored Seconds (PSES) Number of seconds with 44 or more PCVs, one or more out of frame defects, or a detected incoming AIS.
Chapter 5. Statistics Figure 5-5. Network Port Statistics 24-Hour History Screen C-Bit Errored Seconds (CES) Number of seconds with one or more CCVs, one or more out of frame defects, or a detected incoming AIS. This count is not incremented when UASs are counted. C-Bit Severely Errored Seconds (CSES) Number of seconds with 44 or more CCVs, one or more out of frame defects, or a detected incoming AIS. This count is not incremented when UASs are counted.
Chapter 5. Statistics Figure 5-6. Network Port Statistics Menu (24-Hour Totals) Clear All Local Statistics/Refresh All Remote Statistics Clears or refreshes all current information. These selections affect all statistical information (not just the displayed screen).
Chapter 5.
Chapter 6 Diagnostics The DIAGNOSTICS menu allows you to initiate loopback and BERT tests from the T3SU 300. Figure 6-1 shows the main DIAGNOSTICS menu. Tests can be performed for the entire DS3 or for an individual DTE port. To choose a port from the left column of the menu, select the port’s corresponding number and press Enter . The individual port menus provide loopback and BERT selections. BERT configuration options and results are given in the right column of the main DIAGNOSTICS menu.
Chapter 6. Diagnostics Figure 6-1. Diagnostics Main Menu DS3 Access the DS3’s diagnostic options by selecting 1 from the main DIAGNOSTICS menu. The menu in Figure 6-2 appears.
Chapter 6. Diagnostics Figure 6-2. DS3 Diagnostics Menu Data Mode Ends a test already in progress for this port. DS3 Payload Loopback During this test, all payload information is re-framed and looped back towards the network. See Figure 6-3 for a block diagram illustrating the loopback point and the signal paths for this test. This test does not interrupt data flow from the network to the DTE, but it does block all DTE-to-network data.
Chapter 6. Diagnostics T3SU 300 DTE Figure 6-3. DS3 Payload Loopback Test Line Loopback This test allows the loop interface (LINE) section of the local T3SU 300 to be tested from the remote T3SU 300 over the actual T3 circuit. Testing from the remote end of the circuit is performed by using a 511 test pattern or DTE data generated by the remote host. With this test, the T3SU 300 transceiver receives data from the network and loops it back toward the network through its transmitter.
Chapter 6. Diagnostics BERT Select BERT to perform a bit error rate test over the entire payload bandwidth. Only one BERT test may be performed at a time. Remote DS3 Loopback This selection initiates a DS3 Loopback test for the remote unit. DS3 Loopback tests are described previously on page 6-3. Remote Loopback with BERT This selection initiates a DS3 Loopback test for the remote unit and sends/checks the BERT pattern over the entire DS3 payload bandwidth.
Chapter 6. Diagnostics Data Mode Ends a test already in progress. Payload Loopback This selection initiates a Payload Loopback test for all data on the selected port rather than for the entire DS3. During this test, the data is looped back in the network direction. Perform this test to verify the integrity of the portion of the DS3 link connecting the selected port of the T3SU 300 and the remote DTE. This test is nonintrusive to the three other ports. See Figure 6-6.
Chapter 6. Diagnostics T3SU 300 MUX BERT OUT DTE BERT IN Figure 6-7. Payload BERT Test DTE Loopback This test is used to verify proper operation of the link between the T3SU 300 and the terminal equipment. During this test, all data sent by the terminal equipment is looped back to the terminal equipment. A block diagram illustrating the loopback point and the signal path is shown in Figure 6-8. While in DTE Loopback, data from the host is transmitted into the network. T3SU 300 MUX DTE Figure 6-8.
Chapter 6. Diagnostics Payload and DTE Loopback Select this test to perform payload and DTE loopbacks simultaneously. The individual tests are described previously on page 6-3 and page 6-7. See Figure 6-9 for a block diagram illustrating this test. T3SU 300 MUX DTE Figure 6-9. Payload and DTE Loopback Test Remote Port Payload Loopback This selection initiates a Payload Loopback on the remote T3SU 300 for all data on the selected port.
Chapter 6. Diagnostics BERT Configuration The following options apply to any of the tests involving BERT testing. Pattern Select the desired test pattern for the BERT test (see Figure 6-10). The internal test pattern generator can be configured for the following types of test patterns: • All Zeros • All ones • 2^15-1 • 2^23-1 The test pattern is used to independently test the operation of the framing circuitry and the network interface of the T3SU 300.
Chapter 6. Diagnostics Figure 6-10. BERT Pattern Menu Invert Pattern If set to ENABLE, the T3SU 300 inverts the transmitted and received BERT test pattern. This allows the unit to be compatible with test equipment which generates inverted BERT patterns. BERT Information Fields The following five fields provide information about the most recently issued BERT test. These fields appear in the main DIAGNOSTICS menu (shown in Figure 6-1). Port Displays which port is transmitting and receiving the BERT pattern.
Chapter 6. Diagnostics Errors Displays the number of BERT errors received by the T3SU 300 since the last reset. Current Err/Sec Displays the number of BERT errors received by the unit in the last second. Insert Error Inserts one error into the data stream. Clear Errors Clears the error counts given in the BERT information fields of this menu. Reset All Tests Discontinues all active tests and clears the counts displayed in the BERT information fields.
Chapter 6.
Chapter 7 Applications This chapter provides examples of some common T3 applications. The examples include a single port DSU/CSU full T3 bandwidth application, a point-to-point multiport application (page 7-3), a fractional T3 application (page 7-5), and a remote SNMP management application (page 7-7). The configuration selections given in these examples may need modification based on your network configuration.
Chapter 7. Applications Router HSSI 44.2 Mbps T3 T3SU 300 CONTROL REMOTE ACTIVE IN SERVICE IN TEST ALARM LOS NETWORK IN SERVICE IN TEST ALARM LOS DTE PORT IN SERVICE IN TEST ALARM LOS DTE PORT 2 1 IN SERVICE IN TEST ALARM LOS DTE PORT 3 IN SERVICE IN TEST ALARM LOS DTE PORT 4 T3SU 300 Dedicated or Packet Network Figure 7-1. Single Port Application Table 7-1.
Chapter 7. Applications POINT-TO-POINT MULTIPORT APPLICATION When networking requirements call for sharing the bandwidth of a point-to-point T3 circuit, additional data ports can be installed into the T3SU 300 for multiport operation. The T3SU 300 supports up to three port option cards (either high-speed V.35 or HSSI). These option cards are hot swappable and can be field installed. See the section DTE Port Interface Card Slots on page 2-4 for more information on card installation.
Chapter 7. Applications Table 7-2. Configuration Example for Multiport Application Local T3SU 300 Network DTE 1 (HSSI) DTE 2 (HSSI) DTE 3 (V.35) DTE 4 (V.
Chapter 7. Applications FRACTIONAL T3 CARRIER APPLICATION When network providers want to provide service at rates less than full T3, T3SU 300 units can be used in pairs for deploying sub-T3 rate services. In this application example (shown in Figure 7-3), a carrier provides fractional T3 access at 8 Mbps for internet connectivity. The data connection can be either V.35 or HSSI at either location. This network uses a HSSI port at the carrier’s internet POP (point of presence) and a high-speed V.
Chapter 7. Applications Table 7-3.
Chapter 7. Applications REMOTE SNMP MANAGEMENT APPLICATION A remote T3SU 300 can be managed by a local management station if the remote unit is assigned its own IP address. This address must be assigned at both the near and far ends. Also, the DATALINK option must be enabled on both units. In this application example (shown in Figure 7-4) a local T3SU 300, connected to the same LAN as the management station, provides management access to a remote T3SU 300.
Chapter 7. Applications Table 7-4. Configuration Example for Remote Management Application Local T3SU 300 Remote T3SU 300 Network Datalink = Enabled Datalink = Enabled System Local IP Address= 10.4.10.2 Local IP Address= 10.4.10.3 Management Subnet Mask= 255.255.255.0 Subnet Mask= 255.255.255.0 Gateway IP Address= 10.4.10.1 Gateway IP Address= 0.0.0.0 Remote IP Address= 10.4.10.3 Remote IP Address= 0.0.0.
Appendix A Pinouts The following tables give the pin assignments for the connectors located on the T3SU 300 and for the V.35 interface card. For more information on these connectors, see the chapter Installation and Operation on page 2-1. Table A-1. Control and Auxiliary Port Pin Assignments RJ Pin# 1 2 3 4 5 6 7 8 Function GND RTS TD DSR RD CTS* DTR DCD Direction I I O O O I O *Used for hardware flow control.
Appendix A. Pinouts Table A-2.
Appendix A. Pinouts Table A-3. V.
Appendix A. Pinouts Table A-4. LAN Port Pin Assignments Pin 1 2 3 4, 5 6 7, 8 A-4 Name Description TD+ The positive signal for the TD differential pair. This signal contains the serial output data stream transmitted onto the network. TD- The negative signal for the TD differential pair (pins 1 and 2). RD+ The positive signal for the RD differential pair. This signal contains the serial input data stream received from the network.
Appendix B Specifications Summary SPECIFICATIONS AND FEATURES This section describes the standard specifications and features incorporated in the T3SU 300. Network Interface Clear channel, non-channelized DS3. Line buildout: short (less than 50 feet) and long (greater than 50’). Framing format: M13 and C-bit parity. Line rate: 44.736 Mbps. Line interface: 75-ohm BNC coax female connectors. DTE Interface(s) Integrated HSSI port. Three (3) option slots accept any combination of interface cards.
Appendix B. Specifications Summary VT 100 Terminal Interface RJ-48, EIA -232 compatible, female DB-25 adapter provided. Accessible through front or rear panel. Remote configuration and statistics access available inband. SNMP/Telnet Integrated 10baseT ethernet and SLIP/PPP (async) port. MIB II, RFC 1213 and 1407 compliant. ADTRAN Enterprise MIB for extended monitoring and control/ configuration.
Appendix C Acronyms/Abbreviations AIS..................... alarm indication signal AMI ................... alternate mark inversion ANSI ................. American National Standards Institute async ................. asynchronous BERT ................. bit error rate test bps ..................... bits per second BPV ................... bipolar violation CA...................... communications equipment available CCITT ...............
Appendix C. Acronyms/Abbreviations DDS................... digital data service DLCI.................. data link connection identifier DS1 .................... digital signal level one DS3 .................... digital signal level three DSR ................... data set ready DSU ................... data service unit DTE ................... data terminal equipment DTR ................... data terminal ready ES ....................... errored seconds EXZ ....................
Appendix C. Acronyms/Abbreviations OOF................... out of frame OOS................... out of service PCV ................... P-bit coding violation PES .................... P-bit errored seconds POP ................... point of presence PPP .................... point-to-point protocol PSES .................. P-bit severely errored seconds PSTN................. public switched telephone network PVC ................... permanent virtual circuit RD .....................
Appendix C.
Appendix D Glossary 10baseT Ethernet connector which implements the IEEE standard on 24-gauge, unshielded twisted pair wiring. AIS alarm indication signal. An unframed all ones pattern that replaces the normal traffic signal when a failure has been detected. This signal prevents logical connections from terminating between devices. AMI alternate mark inversion. A bipolar line-coding format in T1 transmission systems whereby successive ones are alternately inverted.
Appendix D. Glossary baud rate A measure of transmission speed over an analog phone line. Baud rate measures the shortest signaling elements per second in the analog signal that a modem sends over an analog phone line. Does not necessarily equal the bit rate. BERT bit error rate test. A test that uses any of a number of stress patterns to test T3, T1, FT1, and DDS circuits. bipolar A signal containing both positive and negative amplitude components. bipolar violation See BPV.
Appendix D. Glossary intentional (B8ZS) are counted as errors. Could also be the presence of two consecutive 1 bits of the same polarity on the T-carrier line. bridge A data communications device that connects two or more networks and forwards packets between them. byte Generally, an 8-bit quantity of information. This term is used mainly in referring to parallel data transfer, semiconductor capacity, and data storage. carrier The provider of the telecommunication services to the customer site.
Appendix D. Glossary channel service unit See CSU. clocking An oscillator-generated signal that provides a timing reference for a transmission link. A clock provides signals used in a transmission system to control the timing of certain functions. The clock has two functions: (1) to generate periodic signals for synchronization, and (2) to provide a time base. control port The electrical interface between the T3SU 300 and the control terminal.
Appendix D. Glossary DCE data communications equipment. Device that provides all the functions required for connection to telephone company lines and for converting signals between telephone lines and DTE. Also see DTE. DDS digital data service. A private line digital service for transmitting data end-toend at speeds of 2.4, 4.8, 9.6, and 56 kbps (and in some cases 19.2, 38.4, or 64 kbps).
Appendix D. Glossary E1 Transmission rate of 2.048 Mbps on E1 communications lines. See also T1. end device The ultimate source or destination of data flowing through a network (sometimes referred to as DTE). end user Subscriber who uses (rather than provides) telecommunications services. ES errored seconds. A second with one or more coding violations (CVs). ethernet Transmission protocol for packet-switching LANs. facilities The equipment used by carriers to provide communication services.
Appendix D. Glossary idle code In a T3 circuit, an idle code consists of a sequence of 1100 over the entire payload bandwidth. in-band Signaling (dialing, diagnostics, management, configuration, etc.) over the same channel used for data. IP internet protocol. A protocol which provides for transmitting blocks of data between hosts identified by fixed-length addresses. LAN local area network.
Appendix D. Glossary MIB management information base. A database of network management information used by SNMP. modem Acronym for modulator/demodulator. Equipment that converts digital signals to and from analog signals. Used to send digital signals over analog phone lines. monitor To watch or listen to a signal non-intrusively. multi-point circuit A single communications circuit that has more than two terminations. NC normally closed. Relay switch contacts that remain closed when inactive.
Appendix D. Glossary POP point of presence. Physical place within a LATA (local access and transport area) where a long distance carrier or a cellular provider interfaces with the network of the local exchange carrier (LEC). A POP is usually a building serving as the point of termination which houses switches and transmission equipment. protocol A set of rules controlling the orderly exchange of information between stations in data communications networks or systems. PSTN public switched telephone network.
Appendix D. Glossary signaling Communication between switches to set up and terminate calls. SNMP simple network management protocol. A control and reporting scheme widely used to manage devices from different vendors. SNMP operates on top of the Internet protocol. SR data set ready. A signal on the DTE interface that indicates if a connection exists and if the devices are ready to start handshaking control signals so communications can begin.
Appendix D. Glossary V.35 A standard for trunk interface between a network access device and a packet network that defines signaling for data rates greater than 19.2 kbps. VT 100 A non-intelligent terminal or terminal emulation mode used for asynchronous communications. Used to configure the T3SU 300. WAN wide area network. A communications network serving geographically separate areas. A WAN typically extends a LAN outside the building to link to other LANs over telephone lines.
Appendix D.
Index A active port status 3-6, 4-5 agent 1-3 AIS 5-4, 5-5, 5-6 alarm network state 4-2 alarm block 2-4 alarm history 5-2 alarm LED 2-9 alarm messages 4-2 alarm relay block 3-19 alarm state 4-2 answer on ring 3-22 applications 7-1 apply settings 3-7 auxiliary port 2-4, A-1 description 2-5 setting baud rate 3-14 setting mode 3-13 B bad boot sector 3-23 bad checksum 3-23 bad RAM address 3-23 bad RAM data 3-23 bandwidth 4-6 baud rate 3-14 BERT 6-10 61200217L1-1 pattern 6-9 test 6-1, 6-5 blue alarm 4-4 blue
Index Com Eqpt Fail (NSA) 4-4 common equipment fail NSA 3-17 configuration DS3 network 3-2 DTE port 3-4 remote 3-1, 3-2 system management 3-10 utilities 3-22 configuration corrupt 3-23 configuration examples 7-1 configuration menu 2-8, 3-1 connecting the unit to a terminal interface 2-6 connection timeout 3-21 control port 2-6, A-1 CS 3-8, 4-7 CSES 5-6 CV 5-5 D data link 3-4 data mode 6-3, 6-6 datalink state 4-2 date setting 3-19 default setting reverting to 3-22 desktop installation 2-3 diagnostics 2-8,
Index F gateway IP address 3-13 gateway node 3-13 interface cable 2-2 interface cards 1-1 description 1-4 HSSI 1-4 installation 2-4 V.
Index local timing 3-3 logging out of the system 2-9 loopback tests 6-1 LOS 5-4 LOS LED 2-9 M M13 3-3 management port 3-13 maximum redial attempts 3-21 MBE 5-6 M-bit errors 5-6 menu structure 2-7 MIB 1-1, 1-3 modem application 3-13 modem mode 3-14 N N x 75k blocks 3-7 near end alarm trap 3-16 network LEDs 2-9 network manager 1-3 network port status information 4-2 network state 4-2 network test traps 3-17 normal network state 4-2 not installed port status 3-7 O OOF 5-4, 5-6 OOF alarm 4-4 operation 2-1 o
Index remote login 2-8 remote management application 7-7 remote payload loopback with BERT test 6-5, 6-8 remote port payload loopback test 6-8 reset all tests 6-11 return material authorization (RMA) 1-5 RL 4-7 RS 4-7 S save configuration 3-24 secondary phone number 3-20 SEFS 5-4 self test 3-22 results 3-23 severely errored framing seconds 5-4 single port application 7-1 SLIP 2-5, 3-1, 3-13 SNMP 1-1, 1-2, 1-3, 2-6, 3-14, 3-15 specifications B-1 SR 3-8, 4-7 statistics 5-1 statistics menus 2-8 status DTE po
Index Y yellow alarm traps 3-16 yellow alarm 4-2, 4-4 Index-6 T3SU 300 User Manual 61200217L1-1
Product Support Information Pre-Sales Inquiries and Applications Support Please contact your local distributor, ADTRAN Applications Engineering, or ADTRAN Sales: Applications Engineering (800) 615-1176 Sales (800) 827-0807 Post-Sale Support Please contact your local distributor first. If your local distributor cannot help, please contact ADTRAN Technical Support and have the unit serial number available.
