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Paradyne 3172 Operator's Manual

Zhone acculink 3172 dsu-csu combo: user guide
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  • Page 1 You have accessed an older version of a Paradyne product document. Paradyne is no longer a subsidiary of AT&T. Any reference to AT&T Paradyne is amended to read Paradyne Corporation. AREA CODE CHANGE Please note that the area code for Paradyne Corporation in Largo, Florida has changed from 813 to 727.
  • Page 2 ACCULINK 317x E1 Data Service Unit/ Channel Service Unit Operator’s Guide Document No. 3170-A2-GB20-10 P a r a dyn e Printed on recycled paper March 1996...
  • Page 3 ACCULINK 317x E1 DSU/CSU ACCULINK 317x E1 Data Service Unit/Channel Service Unit Operator’s Guide 3170-A2-GB20-10 2nd Edition (March 1996) Changes and enhancements to the product and to the information herein will be documented and issued as a new release. Trademarks All products and services mentioned herein are the trademarks, service marks, registered trademarks or registered service marks of their respective owners.
  • Page 4 Important Safety Instructions Read and follow all warning notices and instructions marked on the product or included in the manual. When an ac power source is used, this product is intended to be used with a three-wire grounding type plug – a plug which has a grounding pin. This is a safety feature. Equipment grounding is vital to ensure safe operation.
  • Page 5 ACCULINK 317x E1 DSU/CSU In addition, if the equipment is to be used with telecommunications circuits, take the following precautions: – Never install telephone wiring during a lightning storm. – Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
  • Page 6 CE Marking Models 3172-A1-410 and 3174-A1-410 Only Models 3172-A1-410 and 3174-A1-410 of this product are marked with the CE mark. This mark has been affixed to demonstrate full compliance with the following European Directives: Directive 73/23/EEC – Council Directive of 19 February 1973 on the harmonization of the laws of the member states relating to electrical equipment designed for use within certain voltage limits, as amended by Directive 93/68/EEC.
  • Page 7 ACCULINK 317x E1 DSU/CSU Equipment Return To return equipment within North America, prepare a memo and supply the following information: Your company Company address Contact name Contact’s phone number Billing address Purchase order number associated with the equipment RMA number Brief description of the symptoms Status of the equipment’s warranty When returning equipment from outside of North America, also include the following...

  • Page 8: Table Of Contents

    Table of Contents Preface Introduction Installation Operation 3170-A2-GB20-10 Objectives and Reader Assumptions ......Related Documents ........Reference Documents .
  • Page 9 ACCULINK 317x E1 DSU/CSU Maintenance Appendices Glossary Index Overview ..........Self-Test Health .

  • Page 10: Preface

    Objectives and Reader Assumptions This operator’s guide contains installation, operation, and maintenance information for the ACCULINK 317x E1 Data Service Unit (DSU)/Channel Service Unit (CSU). It is assumed that you are familiar with the operation of digital data communication equipment and DSUs and CSUs in particular.

  • Page 11: Introduction

    E1 network applications. The E1 DSU/CSU series of products consists of a Model 3172 DSU/CSU (2-port) and a Model 3174 DSU/CSU (4-port). Differences between these models are discussed where applicable throughout this guide.
  • Page 12 ACCULINK 317x E1 DSU/CSU DTE Drop/Insert Interface The DTE Drop/Insert interface is compatible with the signal format of CCITT Recommendation G.703 and the frame structure of CCITT Recommendation G.704. This interface allows DTEs/PBXs to share the E1 network with other high-speed equipment. Alarm Message Capability The E1 DSU/CSU can be attached, either locally or remotely, to an ASCII terminal or printer to display or...

  • Page 13: Physical Description

    Physical Description The E1 DSU/CSU series of products consists of a Model 3172 DSU/CSU (2-port) and a Model 3174 DSU/CSU (4-port). Front Panel The E1 DSU/CSU front panel (Figure 1-1) contains, One 2-line, 16-alphanumeric-character-per-line liquid crystal display (LCD) One 7-button keypad (three Function and four...
  • Page 14 PORT CAUTION: AUX PORT OR COM PORT MUST NOT BE CONNECTED TO PSTN OR E1 NETWORK CLOCK IN PORT PORT 1 Figure 1-2. Model 3172 Rear Panel PORT PORT 3 PORT 1 Figure 1-3. Model 3174 Rear Panel March 1996...
  • Page 15 Rear Panel Connectors and Switches Name POWER AUX PORT COM PORT NETWORK—120 NETWORK—75 TX/RX NETWORK—120 /75 (switch) NETWORK—RX SHIELD (switch) CLOCK IN PORTs 1– 4 3170-A2-GB20-10 Table 1-1 Function Supplies power to the E1 DSU/CSU by providing an attachment for the ac power module or the optional dc power cable (+24 or –...

  • Page 16: Installation

    Overview ................Application Examples .
  • Page 17 ACCULINK 317x E1 DSU/CSU ROUTER Figure 2-2. Shared Access Application Example P a r a dyn e DSU/CSU ROUTER P a r a dyn e DSU/CSU ROUTER Figure 2-3. Fractional E1 Application Example P a r a dyn e WIRELESS DSU/CSU CELL SITE P a r a dyn e...

  • Page 18: Snmp Connection Examples

    SNMP Connection Examples The E1 DSU/CSU can be connected to an SNMP management system in a number of ways. Some examples include: Directly connecting the COM port to the SNMP manager (Figure 2-5). Connecting the COM port to a network device (e.g., a router) for SNMP management (Figure 2-6).
  • Page 19 ACCULINK 317x E1 DSU/CSU SNMP ETHERNET Figure 2-7. Connection through a LAN Adapter to SNMP SNMP ETHERNET Figure 2-8. LAN Adapter and Daisy Chaining for SNMP Support DSU/CSU NETWORK P a r a dyn e SNMP FDL/EDL Figure 2-9. Remote SNMP Management through FDL /EDL ROUTER DSU/CSU P a r a dyn e...

  • Page 20: Important Instructions

    Important Instructions Read and follow all warning notices and instructions marked on the E1 DSU/CSU or included in this guide. CAUTION Disconnect the power cable before connecting or removing any data cables at the rear of the unit. HANDLING PRECAUTIONS STATIC-SENSITIVE DEVICES AT&T Paradyne products are designed to protect sensitive...
  • Page 21 ACCULINK 317x E1 DSU/CSU Installing the Single – 48 Vdc Power Supply To install the E1 DSU/CSU using a single source – 48 Vdc power supply, refer to Figure 2-11 and use the following procedure. To install the – 48 Vdc single source power supply, 1.
  • Page 22 Installing the Redundant – 48 Vdc Power Supply To install the E1 DSU/CSU using a redundant – 48 Vdc power supply, refer to Figure 2-12 and use the following procedure. To install the redundant – 48 Vdc power supply, 1. Connect the black wire to the – 48 Vdc return source B.

  • Page 23: Cabling Examples

    ACCULINK 317x E1 DSU/CSU Cabling Examples The E1 DSU/CSU is supplied with an ac power module. You must provide the DTE and network cables. Optional cables that you can order from AT&T Paradyne are described in Appendix D, Pin Assignments. Figure 2-13 illustrates some cabling examples.

  • Page 24: Power-Up Self-Test

    Power-Up Self-Test After you connect the E1 DSU/CSU to a power source, the unit performs the power-up self-test to ensure that it is in good working order. The E1 DSU/CSU performs this test on itself upon power-up or after a device reset unless it has been disabled by the Self-Test configuration option (see Appendix C, Configuration Options).

  • Page 25: Operation

    Overview ................Using the Front Panel .

  • Page 26: Overview

    ACCULINK 317x E1 DSU/CSU Overview This chapter contains information for operating your E1 DSU/CSU. It includes a description of the front panel and sample procedures for configuring the E1 DSU/CSU. P a r a dyn e ACCULINK EQPT TEST JACKS Figure 3-1.

  • Page 27: Lcd

    The LCD (Figure 3-2) displays two types of data: Messages such as alarms, command/test completion, and action in progress Front panel menu tree information (see Appendix A, Front Panel Menu) Figure 3-2. LCD The LCD displays status messages as requested via the Device Health and Status branch of the front panel menu (see the Device Health and Status section in Chapter 4, Maintenance).

  • Page 28: Test Jacks

    ACCULINK 317x E1 DSU/CSU The scroll keys ( ) serve one of two functions, depending on whether a menu screen or a data entry screen appears on the front panel. For data entry screens, the key scrolls one character to the left while the key scrolls one character to the right.
  • Page 29 Name Color Green Indicates the current operational state of the E1 DSU/CSU. ON : OFF : BLINKING : FAIL Yellow Indicates a system failure or a self-test. ON : OFF : BLINKING : TEST Yellow A system test is in progress. ON : OFF : Name...
  • Page 30 ACCULINK 317x E1 DSU/CSU Name Color Green Monitors the signal being received from the DTE Drop/Insert port. ON : OFF : Yellow Monitors Out Of Frame (OOF) conditions on the received DTE Drop/Insert signal. ON : OFF : ALRM Yellow Indicates whether an alarm condition exists on the received DTE Drop/Insert signal.
  • Page 31 Name Color Green Monitors the state of interchange circuit CD (CCITT 108/1, /2) – Data Terminal Ready received from the synchronous data DTE. ON : OFF : Yellow Monitors activity on interchange circuit BA (CCITT 103) – Transmitted Data. This is the data sent from the synchronous data DTE to the data port on the E1 DSU/CSU.

  • Page 32: Displaying Unit Identity

    ACCULINK 317x E1 DSU/CSU Displaying Unit Identity The identity of the E1 DSU/CSU (serial number, model number, software revision level, hardware revision level, and customer identification) is available through the Status branch of the front panel menu (see Appendix A, Front Panel Menu).
  • Page 33 To change the customer identification (CID), 1. Press the key on the top-level menu to bring the Ctrl branch onto the front panel LCD. DSU E1 CEPT Stat Test Cnfig 2. Press F3 to select Ctrl from the top-level menu screen.

  • Page 34: Displaying Led Conditions

    ACCULINK 317x E1 DSU/CSU Displaying LED Conditions The same conditions monitored by the front panel LEDs can also be monitored by the LED command. This command is most useful when the E1 DSU/CSU is being accessed remotely (see Appendix G, Front Panel Emulation).

  • Page 35: Selecting The Dte Drop/Insert Or Data Port For Led Display

    E1 DSU/CSU; invalid combinations of configuration options do not appear. For example, menus displayed for the Model 3172 (2 ports) and the Model 3174 (4 ports) differ due to the number of ports available. Also, if the DTE Drop/Insert interface selection is disabled, many of the menu choices do not appear.

  • Page 36: Displaying/Editing Configuration Options

    ACCULINK 317x E1 DSU/CSU The configuration options are divided into functional groups. Appendix C contains a list of the configuration options and defaults. These groups are: DTE (Drop/Insert) Interface (Table C-1) Port (Table C-2) Network Interface (Table C-3) Channel (Tables C-4 and C-5) General (Table C-6) User Interface (Table C-7) Alarm (Table C-8)

  • Page 37: Saving Edit Changes

    Saving Edit Changes Save edit changes to the Active area when you want those changes to take effect immediately. Save edit changes to the Customer area when you want to overwrite the existing Customer configuration options and store these changes for future use. NOTE If you attempt to exit the Edit function after making changes...

  • Page 38: Configuring The E1 Dsu/Csu For Snmp Management

    ACCULINK 317x E1 DSU/CSU 7. Select the port from which you want to copy the configuration options using the corresponding Function key. Copy From: Prt1 Prt2 Prt3 8. Select the port to which you want to copy the configuration options using the corresponding Function key.

  • Page 39: Setting The Ip Address

    7. Press F2 to configure the COM port as the management link to an external SNMP manager. Com Use: Next SNMP ASCII Setting the IP Address The IP address is the address used by the SNMP manager to access the device. For devices using PPP, the IP address can be negotiated if the network device (e.g., router or SNMP manager) supports such negotiation.

  • Page 40: Selecting The Link Layer Protocol

    ACCULINK 317x E1 DSU/CSU 10. When you are through changing the IP address, you must press F3 (Save) to save the value. Otherwise, the original value will be retained. 010.155.111.222 Down Save Selecting the Link Layer Protocol Two link layer protocols, Point-to-Point Protocol (PPP) and Serial Line Internet Protocol (SLIP), are supported for connection to an external SNMP manager or network device (e.g., a router).

  • Page 41: Specifying The Community Name(S) And Access Type(S)

    Specifying the Community Name(s) and Access Type(s) You have the capability of specifying up to two community names (community name 1 and community name 2) to be used by external SNMP managers when trying to access objects in the E1 DSU/CSU’s MIB. Once you specify the community name(s), you must then specify the type of access to the MIB that SNMP managers in the community are permitted to have.

  • Page 42: Configuring Snmp Traps

    ACCULINK 317x E1 DSU/CSU 11. Press F1 (Next) until the Access 1 configuration option appears. CommunityName1: Next Edit Clear 12. Press F2 (Read) or F3 (R/W). Access 1: Next Read The Read selection allows read-only access (SNMP “Get”) to the accessible objects in the MIB when community name 1 is used.

  • Page 43: Selecting The Number Of Trap Managers

    Selecting the Number of Trap Managers If you intend to issue traps to an SNMP manager(s) from this device, you must specify the number of SNMP managers that are to receive the traps. To specify the number of SNMP managers to receive traps from this device, 1.

  • Page 44: Configuring Ds0 Channels

    ACCULINK 317x E1 DSU/CSU Configuring DS0 Channels The E1 DSU/CSU provides channel configuration options that allow you to do the following: Display the DS0 assignments for the Network, DTE Drop/Insert, and data port interfaces. Allocate DS0 channels on the DTE Drop/Insert interface to the Network interface.
  • Page 45 NETWORK INTERFACE Figure 3-6. Example of Channel Allocation with TS16 Reserved for Signaling 3170-A2-GB20-10 DROP/INSERT INTERFACE (N1-D1, N2-D2, ETC.) AUTOMATIC ALLOCATION PORTS PRT 1 PRT 2 PRT 3 PRT 4 496-14899 March 1996 Operation 3-21...
  • Page 46 ACCULINK 317x E1 DSU/CSU Network E1 Interface Network Channel Allocation Prt1 Prt1 Prt3 Prt2 Prt2 Prt2 Prt2 Prt2 Prt2 Prt3 Allocations D1 – D31 indicates allocation to DTE Drop/Insert channels. Prt1 – Prt4 indicates allocation to synchronous data ports. Figure 3-7. Example of Interface Worksheet with TS16 Reserved for Signaling 3-22 DTE Drop/Insert Interface Drop/Insert Channel...
  • Page 47 NETWORK INTERFACE Figure 3-8. Example of Channel Allocation with TS16 Available for Data 3170-A2-GB20-10 DROP/INSERT INTERFACE PORTS PRT 1 PRT 2 PRT 3 PRT 4 496-14898 March 1996 Operation 3-23...
  • Page 48 ACCULINK 317x E1 DSU/CSU Network E1 Interface Network Channel Allocation Prt1 Prt1 Prt1 Prt3 Prt2 Prt2 Prt2 Prt2 Prt2 Prt2 Prt3 Allocations D1 – D31 indicates allocation to DTE Drop/Insert channels. Prt1 – Prt4 indicates allocation to synchronous data ports. Figure 3-9.
  • Page 49 Port Chan Options Conf Assign To Assign By If Assign By Block Port 1 If Assign By Chan Assign To Assign By If Assign By Block Port 2 If Assign By Chan Figure 3-10. Port Channel Configuration Worksheet (Ports 1 and 2) 3170-A2-GB20-10 NET, DTE, Prt2, Prt3, Prt4 Block, Chan...
  • Page 50 ACCULINK 317x E1 DSU/CSU Port Chan Options Conf Assign To Assign By If Assign By Block Port 3 If Assign By Chan Assign To Assign By If Assign By Block Port 4 If Assign By Chan Figure 3-11. Port Channel Configuration Worksheet (Ports 3 and 4) 3-26 NET, DTE, Prt1, Prt2, Prt4 Block, Chan...

  • Page 51: Displaying Ds0 Channel Assignments

    Displaying DS0 Channel Assignments Use the Display command (in the Channel Configuration branch) to view how the DS0 channels are currently allocated. Line 1 of the display shows the 31 channels of the selected interface. Pressing scrolls the next three channels onto the LCD. Line 2 displays what is allocated to the DS0 channel listed in Line 1.
  • Page 52 DS0 channel shown in Line 1. – Allocating Data Ports Assign a specific port (Prt1 and Prt2 for Model 3172, Prt1 through Prt4 for Model 3174) to DS0 channels on either the Network interface or the DTE Drop/Insert interface by using the configuration options.
  • Page 53 7. Select the desired port by pressing its corresponding Function key. Channel Config: Prt1 Prt2 Prt3 8. The configuration option for the data port channel allocation destination appears on the screen. Select NET to assign this port to the Network E1 interface, select DTE to assign this port to the DTE Drop/Insert interface, or press the and the appropriate Function key to assign this...

  • Page 54: Individual Channel Assignment Method

    ACCULINK 317x E1 DSU/CSU Individual Channel Assignment Method The Assign By configuration option screen appears after you select a port. To assign by the individual channel method, 1. Press F3 (Chan). Assign By: Next Block Chan 2. Press F1 (Next) to display the next configuration option (channel allocation).
  • Page 55 7. From the DTE Channels screen, press F1 to select TS16. DTE Channels: TS16 Assign 8. Rsvd (Reserved) is the default for TS16. This indicates that time-slot 16 is reserved for signaling information. Pressing F1 (Data) makes time-slot 16 available for data. TS16:Rsvd Data Rsvd...

  • Page 56: Providing Backup Capability

    ACCULINK 317x E1 DSU/CSU Clearing DS0 Channel Allocation You can clear (deallocate) all the DS0 channels currently allocated to either the Network E1 interface, the DTE Drop/Insert interface, or the synchronous data ports. To clear DS0 channel allocation, 1. Press F3 to select Cnfig from the top-level menu screen.

  • Page 57: Selecting The Timing Source

    Selecting the Timing Source The E1 DSU/CSU provides the ability to select a primary clock (timing) source that is used to synchronize all of the E1 and data port interfaces on the E1 DSU/CSU. The clock for each interface is at the appropriate rate for that interface (e.g., 2.048 Mbps for the E1 interfaces, the configured port rate for the data ports) and is independent of the primary clock rate.

  • Page 58: Configuring For Network Timing

    ACCULINK 317x E1 DSU/CSU Configuring for Network Timing To configure for network timing, 1. Press F3 to select Cnfig from the top-level menu screen. 2. Select the configuration option set to be copied into the Edit area by using the appropriate Function key.

  • Page 59: Acquiring/Releasing The User Interface

    Clock Rate:2048 Next 2048 Acquiring/Releasing the User Interface You can access the user interface from either the front panel or the COM port. The E1 DSU/CSU allows only one user interface to be active at a time. The front panel is the default user interface at power-up or after a reset.

  • Page 60: Resetting The E1 Dsu/Csu

    ACCULINK 317x E1 DSU/CSU 3. From the Control screen, select Rel (Release). Control: ClrReg The active user interface is released. A screen with this message appears. No user interface is active until input is received from a user interface. Ft. Panel: Released Resetting the E1 DSU/CSU Use the Reset command to perform a power-on reset of...
  • Page 61 The Security section of this document is not available for viewing online due to its security-sensitive contents. To order this manual, please call 1-800-545-2354, extension 2222. International customers, call your local AT&T Paradyne Sales Representative. 3170-A2-GB20-10 March 1996 Operation 3-37...

  • Page 62: Maintenance

    Overview ................Self-Test Health .

  • Page 63: Overview

    ACCULINK 317x E1 DSU/CSU Overview The E1 DSU/CSU can detect and report faults, and perform diagnostic tests. These features ensure that your E1 DSU/CSU is giving you optimum performance in your network. Self-Test Health Use the Self-Test Health command to display the results of the power-up self-test.

  • Page 64: Device Health And Status

    Device Health and Status Use the Device Health and Status branch to view current health and status of the E1 DSU/CSU. When you access this branch, one or more status messages appear in priority order (highest to lowest) on Line 2 of the LCD. On the front panel, use the scroll keys to view any additional messages.
  • Page 65 The error rate of the received signal has exceeded the configured threshold for data port Prt n (where n is the port number: 1–2 for the 3172, or 1– 4 for the 3174). This condition only occurs if the synchronous data port’s Embedded Data Link (EDL) is enabled. The condition is cleared when the error rate falls below the synchronous data port’s configured threshold value.

  • Page 66: Network Performance Reports

    Network Performance Reports Network performance is continuously monitored and maintained in network aggregate registers (NET) and, if configured for EDL, in far-end and near-end port registers. Network aggregate registers (NET) are status registers that collect performance data for the previous 24-hour period.
  • Page 67 ACCULINK 317x E1 DSU/CSU 7. When you press F3 from the NET Registers screen, the interval screen appears. Use this screen to choose the specific 15-minute interval. NET Intvl: 01 Down Dsply 8. Use the keys to position the cursor under the first or second digit in the interval number displayed, then use the F1 (Up) and F2 (Down) keys to increment/decrement the...
  • Page 68 Register Interval Description Event Error events counter. An error event is a frame with either a Cyclic Redundancy Check (CRC) error or an Out Of Frame (OOF) event. The maximum count is 65,535. This register is only reset as a result of a Clear Performance Register command.
  • Page 69 ACCULINK 317x E1 DSU/CSU Register Interval Description LOFC The loss of frame count for the current interval. This is a count of the number of times that an LOF is declared. An LOF is declared when a continuous out of frame condition persists for more than 2.5 seconds.

  • Page 70: Alarms

    DTE). Continuous Out Of Frame condition detected at synchronous data port n (where n is the port number: 1–2 for Model 3172 DSU/CSUs, or 1– 4 for Model 3174 DSU/CSUs). Alarm Cleared. Out Of Frame condition at synchronous data port n (where n is the port number: 1–2 for Model 3172 DSU/CSUs, or...

  • Page 71: Snmp Traps

    ACCULINK 317x E1 DSU/CSU SNMP Traps A trap is an unsolicited message that is sent from the E1 DSU/CSU to an SNMP manager when the device detects certain, pre-specified conditions. These traps enable the SNMP manager to monitor the state of the network.

  • Page 72: Troubleshooting

    Troubleshooting AT&T Paradyne’s E1 DSU/CSU is designed to provide you with many years of trouble-free service. However, Table 4-6 gives you some direction if a problem occurs. Symptom Possible Cause No power 1. The power cord is not securely plugged into the wall receptacle or rear panel connector.
  • Page 73 ACCULINK 317x E1 DSU/CSU Symptom Possible Cause Message DTE is sending an AIS. AIS at DTE appears Message EER at E1 facility problem. Net appears BPV LED is ON 1. Incompatible line coding format between the DTE and the E1 DSU/CSU. 2.

  • Page 74: Test Jacks

    Test Jacks Six test jacks are located on the front panel (Figure 4-1). These test jacks allow for two break-in tests (Network In and Network Out) and four monitor access points (Equipment Monitor In, Equipment Monitor Out, Network Monitor In, and Network Monitor Out) to the E1 DSU/CSU.

  • Page 75: Test Commands

    ACCULINK 317x E1 DSU/CSU Test Commands The test commands enable you to run loopbacks and test patterns on the E1 DSU/CSU, and to test the front panel LEDs. These tests can help you isolate areas of trouble if you are having problems with your E1 DSU/CSU.

  • Page 76: Local Loopback Tests

    Local Loopback Tests The Local Loopback tests enable you to conduct circuit testing and fault isolation for the digital line. The supported local loopback tests are: Line Loopback (LLB) Payload Loopback (PLB) DTE Loopback (DLB) Repeater Loopback (RLB) Data Channel Loopback (DCLB) Data Terminal Loopback (DTLB) NOTE DLB does not appear when the...

  • Page 77: Starting A Line Loopback

    ACCULINK 317x E1 DSU/CSU Starting a Line Loopback The Line Loopback command (LLB) loops the received signal on the network interface back to the network without change. To perform a Line loopback, 1. Press F2 to select Test from the top-level display screen.

  • Page 78: Starting A Dte Loopback

    Starting a DTE Loopback The DTE Loopback command (DLB) loops the received signal on the DTE Drop/Insert port back to the DTE without change. A DTE loopback can be activated and deactivated based on the state of an external contact on the DTE Drop/Insert port.

  • Page 79: Starting A Data Channel Loopback

    ACCULINK 317x E1 DSU/CSU 3. From the Loopback screen, press display the RLB selection on the screen. Loopback: Abort 4. Press F3 to select RLB. Loopback: Test Started appears on Line 2. If a Repeater loopback is already in progress, the Already Active message appears.

  • Page 80: Starting A Data Terminal Loopback

    Starting a Data Terminal Loopback The Data Terminal Loopback command (DTLB) loops the data received from the selected port, for all DS0 channels allocated to the port, back out of the port. This loopback occurs after the data passes through the port circuitry but before it reaches the E1 framer.

  • Page 81: Test Patterns

    ACCULINK 317x E1 DSU/CSU 4. From the Loopback Abort screen, press the desired Function key to abort All or one specific loopback test. Use the scroll keys, if necessary. Loopback: Abort If you select ALL, LLB, PLB, DLB, or RLB, skip Step 5.
  • Page 82 4. From the Patterns Send screen, press F1 to send a 511 pattern, F2 to send a 1-in-8 pattern, or F3 to send a QRSS pattern. Patterns: Send 1in8 QRSS If you send a 1-in-8 pattern, skip Step 5. 5. From the Send screen, press the Function key that corresponds to the port for which you want to send a test pattern.

  • Page 83: Monitoring Test Patterns On Individual Data Ports

    ACCULINK 317x E1 DSU/CSU Monitoring Test Patterns on Individual Data Ports Use the Monitor command to monitor QRSS or 511 test patterns on the channels allocated to an individual data port. This command provides the number of errors detected in the test pattern (5 digits, maximum 99999). To monitor a QRSS or 511 test pattern, 1.

  • Page 84: Lamp Test

    4. From the Patterns Abort screen, press the desired Function key to abort either All active test patterns, active Send test patterns, or the active Monitor (Mon) test pattern. Patterns: Abort Send If you select All, the E1 DSU/CSU terminates all active test patterns and displays the message Command Complete.

  • Page 85: Displaying E1 Dsu/Csu Test Status

    ACCULINK 317x E1 DSU/CSU 5. The following screens alternately appear on the LCD until you press a Function key to return to the Lamp Test screen. In addition, all LEDs blink. 0123456789 : ; < = > ? @ABCDEFGHIJKLMNO 6. When you are satisfied that all LEDs are lighting and the LCD is functioning properly, abort the Lamp test from the Lamp Test screen.
  • Page 86 Message No Test Active No tests are currently active. LLB Test Active The network interface is in Line loopback. PLB Test Active The network interface is in Payload loopback. DLB Test Active The DTE Drop/Insert port is in DTE loopback. RLB Test Active The DTE Drop/Insert port is in Repeater loopback.

  • Page 87: Front Panel Menu

    Front Panel Menu DSU E1 CEPT Stat Test Cnfig Ctrl Rlpbk Lpbk Ptrns Lamp ClrReg Reset CID DevHs STest Perf TStat LED E1 Prtn Abort Send Prtn NET Prt1 Prt2 Prt3 Prt4 Near DCLBUP DCLBDN 1in8 QRSS Near QRSS 511 8Tot Intvl Abort...

  • Page 88: Technical Specifications

    ................Overview The technical specifications for the Models 3172 and 3174 DSU/CSUs are listed in Table B-1.
  • Page 89 ACCULINK 317x E1 DSU/CSU Models 3172/3174 DSU/CSUs Technical Specifications Specifications PORT INTERFACE Standards Rates APPROVALS CLOCKING SOURCES PHYSICAL DIMENSIONS Height Width Depth WEIGHT ENVIRONMENT Operating Temperature Storage Temperature Relative Humidity Shock and Vibration Table B-1 (2 of 2) Criteria EIA 530A, V.35, RS- 449...

  • Page 90: Configuration Options

    Configuration Options Overview ................DTE Interface Configuration Options Port Configuration Options .
  • Page 91 ACCULINK 317x E1 DSU/CSU DTE Interface Configuration Options DTE Interface Configuration Options DTE Port: Enab Next Enab Disab Prev DTE Drop/Insert Port. Enables the use of the DTE Drop/Insert port. Enab – Allows the use of the DTE Drop/Insert interface. Disab –...
  • Page 92 Port Configuration Options Port Type: E530 Next E530 V.35 RS449 Prev Data Port Type. Allows selection of the data port interface type. E530 – Configures the port as an EIA 530A compatible interface. EIA 530A DTEs can be directly connected to the DB25 connector on the back of the E1 DSU/CSU.
  • Page 93 ACCULINK 317x E1 DSU/CSU All Ones: Both Next Disab Both Send All Ones on Data Port Not Ready. Specifies the conditions on the data port that determine when valid data is not being sent from the DTE. When this condition is detected, all ones are sent to the network on the DS0 channels allocated to the port.
  • Page 94 EDL: Disab Next Enab Disab Prev Embedded Data Link. Specifies whether Embedded Data Link (EDL) is enabled for a particular port. If EDL is enabled, then 8 kbps of the total bandwidth allocated for this port is not available to the synchronous data port. For example, if the port rate is 256 kbps (4 DS0 channels allocated) and EDL is enabled, then only 248 kbps is available to the port.
  • Page 95 ACCULINK 317x E1 DSU/CSU Far-end: Disab Next Disab Maint Prev Far-End Performance Statistics. Specifies whether to monitor for far-end performance report messages (PRMs) and maintain far-end performance registers for a particular port. Disab – Disables far-end performance statistics. Maint – Monitors the port’s EDL for PRMs and maintains far-end performance statistics. NOTE: This configuration option is not available and does not appear if EDL is disabled.
  • Page 96 Network Interface Configuration Options Network Interface Configuration Options NET Frame: noCRC Next CRC4 noCRC Prev Network Line Framing Format. Designates the framing format for the Network E1 interface. CRC4 – Configures for the CRC4 framing format. noCRC – Configures for the non-CRC4 framing format. Mgmt Link: Disab Next Disab...
  • Page 97 ACCULINK 317x E1 DSU/CSU Channel Configuration Options The Channel configuration options are divided into two tables as follows: DTE Channel Configuration Options (Table C-4) Data Port Channel Configuration Options (Table C-5) DTE Channel Configuration Options DTE Channels: TS16 Assign DTE Drop/Insert Channel. Allows the selection of time-slot 16 (TS16) for signaling information or assigns DS0 channels from the DTE Drop/Insert interface to DS0 channels on the Network E1 interface.
  • Page 98 Data Port Channel. Allows the assignment of a particular port to DS0 channels on either the Network E1 interface, the DTE Drop/Insert interface, or another port (see the Assign To configuration option below). NOTE: For Model 3172 DSU/CSUs, only Ports 1 and 2 are available. Assign To: NET...
  • Page 99 ACCULINK 317x E1 DSU/CSU Data Port Channel Configuration Options Port Rate: 384 Next 1152 1216 1280 1344 1408 1472 Next 1008 1064 1120 1176 1232 1288 Data Port Rate (appears when using the block channel allocation method, or when a synchronous data port is assigned to another synchronous data port).
  • Page 100 Data Port Channel Configuration Options Next – – – – – – Next – – – – – – Data Port Channel Allocation (appears for the individual channel method only). Designates the DS0 channel to allocate to this port (N1–N31 for the Network E1 interface and D1–D31 for the DTE Drop/Insert interface). Line 1 displays the 31 channels for the Network E1 interface or the DTE Drop/Insert interface.
  • Page 101 Int – Configures the internal clock as the primary clock source. Ext – Configures an external clock (provided through the Clock In connector) as the primary clock source. NOTE: For Model 3172 DSU/CSUs, Ports 3 and 4 are not available. Sec Clk Src: NET...
  • Page 102 User Interface Configuration Options User Interface Configuration Options Self-Test: Enab Next Enab Disab Prev Initial Self-Test. Specifies whether the E1 DSU/CSU performs a device self-test at power-up and after a device reset. Enab – Enables a self-test. Disab – Disables the self-test. Com Use: ASCII Next SNMP...
  • Page 103 ACCULINK 317x E1 DSU/CSU User Interface Configuration Options Com Rate: 9.6 Next 14.4 Communication Port Rate. Configures the bit rate for the communication port. 1.2 – Sets the bit rate to 1200 bps. 2.4 – Sets the bit rate to 2400 bps. 4.8 –...
  • Page 104 User Interface Configuration Options Ignore DTR: No Next Prev Communication Port Ignore DTR State. Specifies whether the E1 DSU/CSU ignores the state of the Data Terminal Ready (DTR) input to the communication port. Yes – DTR is ignored. No – DTR is not ignored. NOTE: This configuration option is not available if the communication port is configured for synchronous operation.
  • Page 105 ACCULINK 317x E1 DSU/CSU Alarm Configuration Options Alrm Msg: Disab Next Enab Disab Prev Alarm Messages. Controls the generation of alarm messages, which are routed to an ASCII terminal or printer attached to the communication port. For more information, refer to the Alarms section in Chapter 4, Maintenance . Enab –...
  • Page 106 SNMP Configuration Options The SNMP configuration options are divided into two tables as follows: General SNMP Configuration Options (Table C-9) SNMP Trap Configuration Options (Table C-10) General SNMP Configuration Options System Name: Next Edit Clear Prev System Name. Specifies the SNMP system name for this unit. This is the name of this SNMP-managed node. Edit –...
  • Page 107 ACCULINK 317x E1 DSU/CSU General SNMP Configuration Options CommunityName2: Next Edit Clear Prev Community Name 2. Specifies the second of two community names that are allowed to access this unit’s Management Information Base (MIB). External SNMP managers must supply this name to access an object in the MIB. Edit –...
  • Page 108 General SNMP Configuration Options Com IP Adr: Next Edit Clear Prev Com Port IP Address. Specifies the IP address for the communication port when it is configured as the SNMP management link. The IP address is only in effect when the Com Use configuration option is set to SNMP or Daisy. Edit –...
  • Page 109 ACCULINK 317x E1 DSU/CSU General SNMP Configuration Options Aux IP Adr: Next Edit Clear Prev IP Address for the Auxiliary Port. Specifies the IP address needed to access the unit when the auxiliary port is configured as the SNMP management link. The IP address is only in effect when the Aux Use configuration option is set to SNMP or Daisy.
  • Page 110 Num Trap Mgrs: 1 Next Prev Number of Trap Managers. Specifies the number of SNMP trap managers that are to receive traps for this unit. NOTE: You must configure an IP address for each trap manager that is to receive trap messages. Trap n IP Adr: Clear Next Edit...
  • Page 111 ACCULINK 317x E1 DSU/CSU Entp Trap: Enab Next Enab Disab Prev Enterprise Specific Traps. Specifies whether enterpriseSpecific traps are enabled. For more information, refer to the SNMP Traps section in Chapter 4, Maintenance . Enab – Sends trap messages for enterpriseSpecific events to the currently configured trap manager(s). Disab –...
  • Page 112 Configuration Worksheets This section contains one set of blank worksheets to be used when configuring your E1 DSU/CSU in the network. It is recommended that you copy these blank worksheets before using them. DTE Options Value DTE Port Enab, Disab DTE Frame CRC4, noCRC DTE Coding...
  • Page 113 ACCULINK 317x E1 DSU/CSU Prt1 Options Value Port Type E530, V.35, RS449 Base Rate Nx64, Nx56 NetDCLB Enab, Disab Port LB Disab, DTLB, DCLB, Both All Ones Disab, DTR, RTS, Both Rcv RAI None, Halt Tx Clock Int, Ext InvertTxC Enab, Disab InvrtData Enab, Disab...
  • Page 114 Network E1 Interface Network Channel Allocation Allocations D1 – D31 indicates allocation to DTE Drop/Insert channels. Prt1 – Prt4 indicates allocation to synchronous data ports. 3170-A2-GB20-10 DTE Drop/Insert Interface Drop/Insert Channel Allocations N1 – N31 indicates allocation to Network E1 Channels. Prt1 –...
  • Page 115 ACCULINK 317x E1 DSU/CSU Port Chan Options Conf Assign To Assign By If Assign By Block Port 1 If Assign By Chan Assign To Assign By If Assign By Block Port 2 If Assign By Chan C-26 NET, DTE, Prt2, Prt3, Prt4 Block, Chan Port Rate Nx64: 64, 128, 192, 256, 320, 384, 448, 512, 576,...
  • Page 116 Port Chan Options Conf Assign To Assign By If Assign By Block Port 3 If Assign By Chan Assign To Assign By If Assign By Block Port 4 If Assign By Chan 3170-A2-GB20-10 NET, DTE, Prt1, Prt2, Prt4 Block, Chan Port Rate Nx64: 64, 128, 192, 256, 320, 384, 448, 512, 576, 640, 704, 768, 832, 896, 960, 1024, 1088, 1152,...
  • Page 117 ACCULINK 317x E1 DSU/CSU General SNMP Value Options System Name Edit, Clear System Location Edit, Clear System Contact Edit, Clear CommunityName1 Edit, Clear Access 1 Read, R/W CommunityName2 Edit, Clear Access 2 Read, R/W IP Adr Edit, Clear NetMask Edit, Clear Com IP Adr Edit, Clear Com NetMask...

  • Page 118: Overview

    Overview ................E1 Network Interface .

  • Page 119: E1 Network Interface

    ACCULINK 317x E1 DSU/CSU E1 Network Interface The E1 network interface is either two BNC connectors (Transmit and Receive) for a 75 ohm unbalanced interface, or an RJ48C, 8-position, unkeyed modular connector (Table D-1) for a 120 ohm balanced interface. The E1 120 ohm network interface adapter cable is shown in Figure D-1.

  • Page 120: Pin Assignments

    DTE Drop/Insert Interface The DTE Drop/Insert interface connector is a DB15-type socket connector (Table D-2). For information about using Relay Contact Sense for external DTE loopback, refer to the Extrn DLB configuration option in the DTE Interface Configuration Options section of Appendix C.

  • Page 121: Aux Port Interface

    ACCULINK 317x E1 DSU/CSU AUX Port Interface The Auxiliary (AUX) port connects to the SNMP LAN Adapter for SNMP applications, or to another E1 DSU/CSU’s COM port for daisy chain connectivity. (The SNMP LAN Adapter includes the cable that is needed to attach it to the E1 DSU/CSU.) The AUX port connector is an 8-pin modular connector (Table D-3).

  • Page 122: Com Port Interface

    COM Port Interface The COM port connects to a PC for front panel emulation, to an ASCII terminal or printer for alarms, to a network device (e.g., a router) for SNMP applications, to the SNMP LAN Adapter for SNMP applications, or to another E1 DSU/CSU’s AUX port for daisy chain connectivity.
  • Page 123 ACCULINK 317x E1 DSU/CSU Figure D-3. COM Port-to-PC Cable Figure D-4. COM Port-to-Terminal/Printer Cable March 1996 3170-A2-GB20-10...

  • Page 124: Eia 530A Port Interface Connector

    EIA 530A Port Interface Connector The EIA 530A Port Interface DB25 connector information is shown in Table D-5. EIA 530A Port Interface DB25 Connector Signal Shield Signal Common Signal Common Transmitted Data Received Data Request-to-Send Clear-to-Send Received Line Signal Detector DCE Ready DTE Ready Transmit Signal Element Timing (DTE Source)

  • Page 125: Eia 530A-To-Rs449 Cable Interface

    ACCULINK 317x E1 DSU/CSU EIA 530A-to-RS449 Cable Interface The EIA 530A-to-RS449 adapter cable (Figure D-5) provides the RS449 interface shown in Table D-6. DB25 SIGNAL PLUG SHIELD TD-A TD-B RD-A RD-B TXC-A TXC-B RXC-A RXC-B RTS-A RTS-B CTS-A CTS-B RLSD-A RLSD-B SIG.
  • Page 126 Signal Shield Signal Ground Receive Ground Send Common Send Data Receive Data Request-to-Send Clear-to-Send Receiver Ready Data Mode Terminal Ready Terminal Timing Send Timing Receive Timing Local Loopback Remote Loopback Test Mode 3170-A2-GB20-10 Table D-6 RS449 Cable Interface Circuit CCITT Mnemonic Number —...
  • Page 127 ACCULINK 317x E1 DSU/CSU EIA 530A-to-V.35 Cable Interface The EIA 530A-to-V.35 adapter cable (Figure D-6) provides the V.35 interface shown in Table D-7. DB25 SIGNAL PLUG SHIELD TD-A TD-B RD-A RD-B TXC-A TXC-B RXC-A RXC-B RLSD SIG. COMMON TT-A TT-B D-10 Figure D-6.
  • Page 128 Signal Shield Signal Common Transmitted Data Received Data Request to Send Clear to Send Data Channel Received Line Signal Detector Data Set Ready Data Terminal Ready Transmit Signal Element Timing (DTE Source) Transmit Signal Element Timing (DCE Source) Receiver Signal Element Timing (DCE Source) Local Loopback Loopback/Maintenance Test Indicator...
  • Page 129 ACCULINK 317x E1 DSU/CSU EIA 530A-to-X.21 Cable Interface The EIA 530A-to-X.21 adapter cable (Figure D-7) provides the X.21 interface shown in Table D-8. DB25 SIGNAL PLUG TD-A TD-B RD-A RD-B RXC-A RXC-B RTS-A RTS-B RLSD-A RLSD-B SIG. COMMON TT-A TT-B D-12 Figure D-7.
  • Page 130 Signal Signal Common Transmitted Data Received Data Request-to-Send Data Channel Received Line Signal Detector Transmit Signal Element Timing (DTE Source) Receiver Signal Element Timing (DCE Source) 3170-A2-GB20-10 Table D-8 X.21 Cable Interface CCITT Number To DSU/CSU From DSU/CSU To DSU/CSU From DSU/CSU To DSU/CSU From DSU/CSU...

  • Page 131: Optional Dc Power Cable

    ACCULINK 317x E1 DSU/CSU Power Input Connector The input power connector leads are shown in Table D-9. Table D-9 DC Power Connector Signal Pin Number – 48 Vdc Return – 48 Vdc A – 48 Vdc B +24 Vdc +24 Vdc Return Chassis Ground D-14 Optional DC Power Cable...
  • Page 132 External Clock Interface The External Clock connector pinouts are in Table D-10. A cable diagram is shown in Figure D-9. This is a customer-supplied cable. Figure D-9. External Clock Connector 3170-A2-GB20-10 Table D-10 External Clock Connector Signal Shield Clock (+) (RS422 only) Clock (–) (RS422 only) Clock In (RS423 only) Signal Common...

  • Page 133: Snmp Mib Objects

    Overview ................Management Information Base (MIB) II (RFC 1213) System Group, MIB II .
  • Page 134 System Group – “sysObjectID” Object (system 2) This object provides the authoritative identification of the network management subsystem contained in the unit. This object displays the following object identifier: 3172 1.3.6.1.4.1.74.1.14.2.2.5 3174 1.3.6.1.4.1.74.1.14.2.2.6 System Group – “sysServices” Object (system 7) This object provides a value which indicates the set of services that are potentially offered by the E1 DSU/CSU.
  • Page 135 5 – Auxiliary RS-232 port 6 – DCE port 1 7 – DCE port 2 8 – DCE port 3 9 – DCE port 4 The supported ifIndexes for the 3172 DSU/CSU are: Net E1 DTE E1 COM port Auxiliary RS-232 port...
  • Page 136 ACCULINK 317x E1 DSU/CSU Interface Group – “ifMtu” Object (ifEntry 4) This object identifies the largest datagram that can be sent or received on the interface. It is applicable only to the interface configured as the SNMP management link. This object is zero for all other interfaces. Interface Group –...
  • Page 137 Interface Group – “ifLastChange” Object (ifEntry 9) This object contains the value of “sysUpTime” at the time the interface entered its current operational state. For the E1 DSU/CSU, this object is only updated for the “up” and “down” states. This is done since the “testing” state is not mutually exclusive with the “up”...
  • Page 138 ACCULINK 317x E1 DSU/CSU IP Group – “ipRouteTable” Object (ip 21) The routing table used by the E1 DSU/CSU is supported as a read/write table. Entries in this table may be added, deleted, or changed. You should exercise great caution when adding or modifying routes in the ipRoutingTable.
  • Page 139 IP Group – “ipRouteProto” Object (ipRouteEntry 9) This object is a read-only object and may have the following values in the E1 DSU/CSU. other(1) – Temporary route added by IP. local(2) – Route added or modified as a result of user configuration via the front panel.
  • Page 140 ACCULINK 317x E1 DSU/CSU DS1/E1 MIB (RFC 1406) The “ds1” object defined by RFC 1406 is supported for both the network and DTE Drop/Insert interfaces. The DS1 Near End Group and DS1 Fractional Group are supported for both interfaces. The DS1 Far End Group is not supported.
  • Page 141 Near End Group – “dsx1CircuitIdentifier” Object (dsx1ConfigEntry 8) This object is only supported on the network interface. Near End Group – “dsx1LoopbackConfig” Object (dsx1ConfigEntry 9) This object specifies the loopback state of the E1 interfaces. Only the following values are supported by the E1 DSU/CSU.
  • Page 142 ACCULINK 317x E1 DSU/CSU Near End Group – “dsx1Fdl” Object (dsx1ConfigEntry 13) This object specifies how Facility Data Link is being used. Only the following values are supported by the E1 DSU/CSU. More than one value may be active at a time. dsx1other(1) –...
  • Page 143 (rs232 1) This object contains the number of ports in the RS-232-like general port table. This number is 4 for the 3172 DSU/CSU and 6 for the 3174 DSU/CSU. General Port Table, RS-232-like MIB The general port table contains general configuration objects for the RS-232-like interfaces.
  • Page 144 ACCULINK 317x E1 DSU/CSU General Port Table – “rs232PortType” Object (rs232PortEntry 2) This object is used to identify the port’s hardware type. Only the following values are supported by the E1 DSU/CSU. rs232(2) – Used to identify the AUX and COM ports.
  • Page 145 Asynchronous Port Table, “rs232AsyncPortParity” (rs232AsyncPortEntry 4) This object specifies the parity used by the port. Only the following values are supported by the E1 DSU/CSU. none(1) – No parity bit. odd(2) – Odd parity. Supported on the COM port only. even(3) –...
  • Page 146 ACCULINK 317x E1 DSU/CSU Output Signal Table – “rs232OutSigChanges” (rs232OutSigEntry 4) This object is not supported by the E1 DSU/CSU. Generic-Interface Extension MIB (RFC 1229) The generic-interface MIB is an experimental MIB that provides extensions to the generic interface group defined in MIB II.
  • Page 147 testSendV54Up – OBJECT IDENTIFIER ::= [wellKnownTests 7] testSendV54Down – OBJECT IDENTIFIER ::= [wellKnownTests 8] testSend1in8 – OBJECT IDENTIFIER ::= [wellKnownTests 12] Generic Interface Test Table – “ifExtnsTestResult” Object (ifExtnsTestEntry 5) This object contains the result of the most recently requested test. Only the following values are supported by the E1 DSU/CSU.
  • Page 148 ACCULINK 317x E1 DSU/CSU Correlation between Menu Commands and SNMP Objects Table E-1 provides a correlation between how a function is performed or status is displayed on the front SNMP MIB to Front Panel Command Cross-Reference Front Panel Command Stat–>DevHS: LOS at NET OOF at NET RAI at NET...
  • Page 149 SNMP MIB to Front Panel Command Cross-Reference Front Panel Command Stat–>Tstat: LLB Test Active PLB Test Active RLB Test Active DLB Test Active DCLB on Port n DTLB on Port n 1–8 Test Active QRSS on Port n 511 on Port n Mon QRSS, Port n Mon511, Port n Stat–>LED–>Prtn:...
  • Page 150 ACCULINK 317x E1 DSU/CSU SNMP MIB to Front Panel Command Cross-Reference Front Panel Command Test–>Ptrns–>Send–>511–>Prt n Test–>Ptrns–>Abort–>Send–>Prt n Test–>Ptrns–>Mon–>QRSS–>Prt n Test–>Ptrns–>Abort–>Mon–>Prt n Test–>Ptrns–>Mon–>511–>Prt n Test–>Ptrns–>Abort–>Mon–>Prt n Cnfig–>Load Cnfig–>Save Cnfig–>Activ–>Edit–>DTE–>DTE–>Frame Cnfig–>Activ–>Edit–>DTE–>DTE–>Coding Cnfig–>Activ–>Edit–>Port–>Prtn->Port Type Cnfig–>Activ–>Edit–>Port–>Prt n –>TxClock Cnfig–>Activ–>Edit–>NET–>NET Frame Cnfig–>Activ–>Edit–>NET–>Mgmt Link Cnfig–>Activ–>Edit–>Chan–>DTE–>Assign Cnfig–>Activ–>Edit–>Chan–>DTE–>TS16 Cnfig–>Activ–>Edit–>Chan–>Prt n –>Assign To Cnfig–>Activ–>Edit–>Chan–>Dsply...

  • Page 151: Ip Network Addressing Scenario

    IP Network Addressing Scenario Overview ................IP Network Addressing .
  • Page 152 ACCULINK 317x E1 DSU/CSU 135.18.1.2 135.18.1.3 135.18.1.4 135.18.1.5 135.18.1.7 Figure F-1. Daisy-Chained Standalone Devices at the Central Site ETHERNET 135.18.40.1 NETWORK SUBNET 135.18.40.0 ADAPTER AUX/COM IP ADDRESS: 135.18.40.2 SUBNET 135.18.1.0 135.18.1.6 March 1996 SNMP NMS 135.18.1.1 135.18.1.1 495-14645-01 3170-A2-GB20-10...

  • Page 153: Front Panel Emulation

    Front Panel Emulation Overview ................Installing Front Panel Emulation Software Starting Front Panel Emulation Overview...
  • Page 154 ACCULINK 317x E1 DSU/CSU Starting Front Panel Emulation If the E1 DSU/CSU selected is not locally attached to the PC, you must first dial to the remote E1 DSU/CSU before starting front panel emulation. The modem attached to the PC must support AT commands for the Front Panel Emulation software to successfully place the call.

  • Page 155: Equipment List

    Model 3172 DSU/CSU (100 to 240 Vac) Model 3174 DSU/CSU (100 to 240 Vac) Model 3172 DSU/CSU (+24 / – 48 Vdc) Model 3174 DSU/CSU (+24 / – 48 Vdc) E1 120 Ohm Network Interface Cable, 8-pin modular to DB15S...

  • Page 156: Glossary

    ACCULINK An AT&T product family and a registered trademark. Activ Active configuration area. The configuration option set that is currently active for the device. Before a configuration option set becomes active, you must save the set to the Active configuration area. adapter Hardware that provides some transitional function between two or more devices.
  • Page 157 ACCULINK 317x E1 DSU/CSU Binary digit. The smallest unit of information, representing a choice between a one or a zero (sometimes called mark or space). block allocation method A method of allocating DS0 channels as a group rather than individually. Bayonet-Neill-Concelman.
  • Page 158 CRC6 CRC using six check bits. Canadian Standards Association. Channel Service Unit. Protects the E1 line from damage and regenerates the E1 signal. Ctrl branch Control branch of the E1 DSU/CSU menu tree. Clear-to-Send. V.24 circuit 106. Cust1 Customer 1 configuration area. The first of two sets of customer-defined configuration options.
  • Page 159 ACCULINK 317x E1 DSU/CSU Data Service Unit. Data communications equipment that provides an interface between the DTE and the digital network. Digital Signal Level 0. A 64 kbps standard signal or channel. DS0 channel allocation Assigning specific DS0 channels in the E1 DSU/CSU to specific interfaces (Network, DTE Drop/Insert, etc.).
  • Page 160 frame relay A switching interface that is designed to get frames from one part of the network to another as quickly as possible. framing A technique that separates bits into identifiable groups. Generic-Interface Extension An extension to MIB II that defines additional objects for control of generic interfaces in MIB II.
  • Page 161 ACCULINK 317x E1 DSU/CSU Lpbk branch Local Loopback branch of the E1 DSU/CSU menu tree. Link Quality Reports. manager (SNMP) The device that queries agents for management information, or receives unsolicited messages (traps) indicating the occurrence of specific events. Megabytes. A unit of memory measurement equal to approximately one million bytes (typically 1,048,576 bytes).
  • Page 162 power-up self-test A test that checks most hardware components when power is applied to the device or a reset is initiated. Point-to-Point Protocol. A link layer protocol used by SNMP. PRBS Psuedo-Random Bit Sequence. A test pattern containing any possible combination of digital ones and zeros for a given string length.
  • Page 163 ACCULINK 317x E1 DSU/CSU self-test A test that checks most hardware components when power is applied to the device or a reset is initiated. server A device that offers a specific service, such as database management, to a client. Severely Errored Seconds. Seconds with 805 or more CRC errors or errored frame alignment signals;...
  • Page 164 warmStart trap An SNMP trap that indicates that the device has reinitialized itself. wireless communications The transmission of voice and/or data over the airwaves. XTXC External Transmit Clock. V.24 circuit 113. 1in8 Test A test pattern consisting of a one (1) followed by seven zeros (on the network only).
  • Page 165 abort lamp test, 4-24 loopback, 4-19–4-20 test patterns, 4-22–4-23 ac power module, 1-5, B-1 Activ (Active) configuration area functional description, 3-11 in the menu tree, A-1 addressing. See IP (Internet Protocol) addressing agent, SNMP, 1-2 AIS (Alarm Indication Signal) condition ASCII terminal/printer message, 4-9 Device Health and Status message, 4-4 front panel LED indication, 3-5, 3-6...
  • Page 166 ACCULINK 317x E1 DSU/CSU DTE Interface, C-2 General, C-12 Network Interface, C-7 Port, C-3–C-6 SNMP, C-17–C-22 User Interface, C-13–C-15 worksheets, C-23–C-28 connectors, rear panel cabling examples, 2-8 functional description, 1-5 physical description, 1-4 pin assignments, D-1–D-15 CPU failure message, 4-2 Ctrl (Control) branch examples of use, 3-9, 3-11, 3-36 in the menu tree, A-1...
  • Page 167 Gen (General) Configuration branch example of use, 3-34–3-35 in the menu tree, A-1 option table, C-12 option worksheet, C-23 HDB3 (High Density Bipolar 3) coding configuration option, C-2 Self-Test Health message, 4-2 ID (Identity) branch example of use, 3-8 in the menu tree, A-1 indicators.
  • Page 168 ACCULINK 317x E1 DSU/CSU channel allocation procedure, 3-20–3-26 configuration options, C-7 failure message, 4-2 front panel LED indications, 3-5 functional description, 1-5, 2-1 physical description, 1-4 pin assignments, D-2 technical specifications, B-1 troubleshooting, 4-11 objects, SNMP, 1-2, E-1–E-18 OOF (Out Of Frame) condition ASCII terminal/printer message, 4-9 Device Health and Status message, 4-4 front panel LED indication, 3-5, 3-6...
  • Page 169 secondary clock configuration option, C-12 functional description, 3-33 self-test displaying results, 4-2 front panel indications, 2-9, 3-5 troubleshooting, 4-11 Send Ones configuration option, C-2, C-4 Serial Line Internet Protocol (SLIP) procedure for configuring, 3-16 used with SNMP system, 1-2, 2-3, 3-14, F-1 SES (Severly Errored Seconds) report, 4-7 shield, RX, 1-5 SNMP (Simple Network Management Protocol)

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