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Paradyne 336x E1 Starting a Data Terminal Loopback, Aborting Loopbacks

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ACCULINK 336x E1 NTU

4-20 December 1996 3360-A2-GB20-20

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. All ones are

transmitted to that port.

NTU

DATA

PORTS

(1 - 4) DTLB HDSL

AIS

DATA TERMINAL LOOPBACK (DTLB)

496-14774-0

1

To perform a Data Terminal loopback,

1. From the top-level menu screen, select Test.

2. From the Test screen, select Lpbk.

F1

Test:

Rlpbk Lpbk Ptrns

F2 F3

3. From the Loopback screen, press the key until

the DTLB selection appears on the screen.

4. Select DTLB.

F1

Loopback:

RLB DCLB DTLB

F2 F3

5. From the DTLB screen, press the Function key for

the port for which you want to perform the data

terminal loopback. Use the scroll keys, if

necessary.

F1

Loopback: DTLB

Prt1 Prt2 Prt3

F2 F3

Test Started appears on Line 2. If a Data

Terminal loopback is already in progress, the

Already Active message appears. If an invalid

combination of loopbacks is in progress, the error

message Invld Test Combo appears (see

Table 4-9 for valid loopback test combinations).

Aborting Loopbacks

The Abort Loopback command stops all loopback tests

or any selected loopback test currently active on the E1

NTU.

To abort one or more loopback tests,

1. From the top-level menu screen, select Test.

2. From the Test screen, select Lpbk.

F1

Test:

Rlpbk Lpbk Ptrns

F2 F3

3. From the Loopback screen, select Abort.

F1

Loopback:

Abort LLB PLB

F2 F3

Contents

Main ACCULINK 336x E1 Network Termination Unit Warranty, Sales, and Service Information Trademarks Important Safety Instructions Notices Table of Contents Preface 1. Introduction 2. Installation 3. Operation 4. Maintenance Appendices Glossary Index Preface Objectives and Reader Assumptions Related Document Reference Documents Introduction Features G.703 DTE Interface Alarm Message Capability Front Panel Emulation SNMP Management Support Physical Description Front Panel Rear Panel ACCULINK 336x E1 NTU 1-4 December 1996 3360-A2-GB20-20 Figure 1-2. Model 3360 Rear Panel 495-1473 Figure 1-3. Model 3364 Rear Panel Figure 1-4. Model 3365 Rear Panel Table 1-1 Rear Panel Connectors and Switches Name Function Installation Application Examples NETWORK SERVICES NETWORK Figure 2-2. Point-to-Point Application Example FRACTIONAL Figure 2-3. Fractional E1 Application Example SNMP Connection Examples Figure 2-6. Connection through a LAN Adapter to SNMP Figure 2-7. LAN Adapter and Daisy Chaining for SNMP Support Figure 2-8. Remote SNMP Management through FDL/EDL Important Instructions Optional Power Sources Installing the +24 Vdc Power Supply Installing the Single 48 Vdc Power Supply Installing the Redundant 48 Vdc Power Supply X Cabling Examples Figure 2-12. Cabling Examples NETWORK Power-Up Self-Test Operation Using the Front Panel Front Panel Emulation LCD Keypad Test Jacks LEDs Table 3-1 System LEDs Table 3-2 Network Interface LEDs Table 3-3 G.703 DTE Port LEDs Table 3-4 Data Port LEDs Displaying Unit Identity xxxxxxx Page Displaying LED Conditions Selecting the G.703 DTE or Data Port for LED Display Changing Configuration Options Displaying/Editing Configuration Options Saving Edit Changes Selecting/Copying to a Specific Port Configuring the E1 NTU for SNMP Management Selecting the Port Setting the IP Address Selecting the Link Layer Protocol Specifying the Community Name(s) and Access Type(s) Configuring SNMP Traps Enabling SNMP Trap Messages Selecting the Number of Trap Managers Configuring a Destination for SNMP Traps Configuring DS0 Channels Figure 3-6. Example of Channel Allocation with TS16 Reserved for Common-Channel Signaling Figure 3-7. Example of Interface Worksheet with TS16 Reserved for Common Channel Signaling Figure 3-8. Example of Channel Allocation with TS16 Available for Data Figure 3-9. Example of Interface Worksheet with TS16 Available for Data Figure 3-10. Port Channel Configuration Worksheet (Ports 1 and 2) Figure 3-11. Port Channel Configuration Worksheet (Ports 3 and 4) Displaying DS0 Channel Assignments Allocating Data Ports Block Channel Assignment Method Individual Channel Assignment Method Allocating DS0 Channels from the G.703 DTE Interface to the Network Interface Page Clearing DS0 Channel Allocation Selecting the Timing Source Configuring for Network Timing Configuring for External Timing Acquiring/Releasing the User Interface User I/F Acquiring the Active User Interface Releasing the Active User Interface Resetting the E1 NTU Download Operations Page Maintenance Self-Test Health Device Health and Status Table 4-2 Health and Status Messages Message Description xxxxxxxx HDSL Loop Performance Performance Reports Page Table 4-4 Performance Registers Register Interval Description Totals Description Table 4-4 Performance Registers Register Totals DescriptionInterval Description Alarms SNMP Traps Troubleshooting For problems other than those listed in the table, please contact your service representative. Table 4-7 Troubleshooting Symptom Possible Cause Solutions Table 4-7 Troubleshooting Symptom SolutionsPossible Cause Test Jacks Figure 4-1. E1 NTU Test Jacks Figure 4-2. Test Jack Block Diagram Table 4-8 Test Jack Functions Test Jack Name Function Test Commands Remote Loopback Tests Type Local Loopback Tests Starting a Line Loopback Starting a Payload Loopback Starting a DTE Loopback Starting a Repeater Loopback Starting a Data Channel Loopback Starting a Data Terminal Loopback Aborting Loopbacks Test Name Test Patterns Sending Test Patterns Name Name and Dest Monitoring Test Patterns Name Aborting Test Patterns Send or Mon Lamp Test Starting a Lamp Test Aborting a Lamp Test Displaying E1 NTU Test Status Table 4-11 Test Status Messages Message Description A Front Panel Menu NOTE Some selections are not available on 1-port and 2-port E1 NTUs. B Technical Specifications Models 3360/3364/3365 NTUs Technical Specifications Specifications Criteria Table B-1 Models 3360/3364/3365 NTUs Technical Specifications Specifications Criteria C Configuration Options DTE Interface Table C-1 DTE Interface Configuration Options Pin Assignments G.703 DTE Interface Port Configuration Options Page Page Page Network Interface Table C-3 Network Interface Configuration Options Channel Configuration Options Configuring DS0 Channels Operation (1 of 3) Configuring DS0 Channels Operation (2 of 3) OR (3 of 3) General Configuration Options Table C-6 General Configuration Options User Interface (1 of 3) (2 of 3) (3 of 3) Alarm Configuration Options Table C-8 Alarm Configuration Options Alarms SNMP Configuration Options public. Page Page Page Table C-10 SNMP Trap Configuration Options Table C-10 SNMP Trap Configuration Options Alarm Configuration Options Configuration Worksheets Prt1 Options Value Prt2 Options Value Prt3 Options Value Prt4 Options Value Page Page Page General SNMP Options Value SNMP Trap Options Value D Pin Assignments HDSL Network Interface G.703 DTE Interface AUX Port Interface COM Port Interface Page EIA 530A Port Interface Connector EIA 530A-to-RS449 The EIA 530A-to-RS449 adapter cable (Figure D-4) provides the RS449 interface shown in Table D-6. Figure D-4. EIA 530A-to-RS449 Cable Table D-6 RS449 Cable Interface Signal Circuit Mnemonic CCITT Number Direction Pin EIA 530A-to-V.35 The EIA 530A-to-V.35 adapter cable (Figure D-5) provides the V.35 interface shown in Table D-7. Figure D-5. EIA 530A-to-V.35 Cable Table D-7 V.35 Cable Interface Signal CCITT Number Direction Pin EIA 530A-to-X.21 The EIA 530A-to-X.21 adapter cable (Figure D-6) provides the X.21 interface shown in Table D-8. Figure D-6. EIA 530A-to-X.21 Cable Page Power Input Connector Optional DC Power Cable External Clock Interface E SNMP MIB Objects Management Information Base (MIB) II (RFC 1213) System Group, MIB II System Group sysDescr Object (system 1) System Group sysObjectID Object (system 2) System Group sysServices Object (system 7) Interface Group, MIB II Interface Group ifIndex Object (ifEntry 1) Interface Group ifDescr Object (ifEntry 2) Interface Group ifType Object (ifEntry 3) Interface Group ifMtu Object (ifEntry 4) Interface Group ifSpeed Object (ifEntry 5) Interface Group ifAdminStatus Object (ifEntry 7) Interface Group ifOperStatus Object (ifEntry 8) Interface Group ifLastChange Object (ifEntry 9) Interface Group Input Counters (objects ifEntry 10 to ifEntry 15) Interface Group Output Counters (objects ifEntry 16 to ifEntry 21) IP Group, MIB II IP Group ipForwarding Object (ip 1) IP Group ipRouteTable Object (ip 21) IP Group ipRouteDest Object (ipRouteEntry 1) IP Group ipRouteIfIndex Object (ipRouteEntry 1) IP Group ipRouteMetric2 Object (ipRouteEntry 4) IP Group ipRouteProto Object (ipRouteEntry 9) IP Group ipRouteAge Object (ipRouteEntry 10) ICMP Group, MIB II UDP Group, MIB II Transmission Group, MIB II DS1/E1 MIB (RFC 1406) Near End Group, DS1/E1 MIB Near End Group dsx1TimeElapsed Object (dsx1ConfigEntry 3) Near End Group dsx1ValidIntervals Object (dsx1ConfigEntry 4) Near End Group dsx1LineType Object (dsx1ConfigEntry 5) Near End Group dsx1LoopbackConfig Object (dsx1ConfigEntry 9) Near End Group dsx1LineStatus Object (dsx1ConfigEntry 10) Near End Group dsx1SignalMode Object (dsx1ConfigEntry 11) Near End Group dsx1TransmitClockSource Object (dsx1ConfigEntry 12) Near End Group dsx1Fdl Object (dsx1ConfigEntry 13) Near End Group The DS1 Current Table Objects (dsx1CurrentEntry) Near End Group The DS1 Interval Table Objects (dsx1IntervalEntry) Near End Group The DS1 Total Table Objects (dsx1TotalEntry) Far End Group, DS1/E1 MIB The DS1 Fractional Group, DS1/E1 MIB RS-232-like MIB (RFC 1317) Number of Ports rs232Number Object (rs232 1) General Port Table, RS-232-like MIB General Port Table rs232PortIndex Object (rs232PortEntry 1) General Port Table rs232PortType Object (rs232PortEntry 2) Page Generic-Interface Extension MIB (RFC 1229) Generic Interface Test Table, Generic Interface MIB Generic Interface Test Table ifExtnsTestType Object (ifExtnsTestEntry 4) Generic Interface Test Table ifExtnsTestResult Object (ifExtnsTestEntry 5) Generic Interface Test Table ifExtnsTestCode Object (ifExtnsTestEntry 6) Paradyne Enterprise MIB Correlation between Menu Commands and SNMP Objects Page Page Page F IP Network Addressing Scenario IP Network Addressing NETWORK Figure F-1. Daisy-Chained Standalone Devices at the Central Site G Front Panel Emulation Installing Front Panel Emulation Software Starting Front Panel Emulation Displaying LED Conditions Operation H Equipment List Equipment Feature Number COMCODE Glossary Page Page Page Page Page Page Page Page Index A B C D E F G H I K L M N O P Q R S T