Telco-Initiated Payload Loopback | Paradyne HOTWIREt 7984 instruction

Testing

Telco-Initiated Payload Loopback

The Hotwire 7984 Standalone Termination Unit supports payload loopback as specified in AT&T TR 54016 and ANSI T1.403. A Telco-initiated line loopback loops the received signal on the DSX-1 interface back to the DSX-1 interface. Framing, CRC, and FDL bits are regenerated at the point of the loopback, and BPVs are removed.

DSL

Port All Ones

CAP

CAP

Transceiver Framer

T1
LIU	DSX-1	Telco
	Port
Framer
	99-16253

Telco-Initiated Remote Line Loopback

If Remote Telco Loopback is enabled, a Telco-initiated line loopback loops received data at the remote unit and passes it back to the Telco through the local unit.

The following figure shows the data flow for a remote Telco-initiated payload loopback.

DSX-1 Port

AIS

	Remote			Local
T1	CAP	CAP	CAP	CAP	T1
LIU			DSL		LIU	DSX-1	Telco
						Port
Framer	Framer	Transceiver	Transceiver	Framer	Framer
					98-16109

5-10

February 1999

7984-A2-GB20-10

Image 66

Paradyne HOTWIREt 7984 manual Telco-Initiated Payload Loopback, Telco-Initiated Remote Line Loopback

Contents

HOTWIRE Hdsl Standalone Termination Unit Copyright E 1999 Paradyne Corporation All rights reserved Important Safety Instructions EMI Warnings Contents Initial Startup and Configuration Messages and Troubleshooting Standards Compliance for Snmp Traps About This Guide Document Purpose and Intended AudienceDocument Summary Product-Related Documents About the Hotwire Standalone Termination Unit Hotwire 7984 Termination Unit FeaturesHdsl Overview About the Hotwire 7984 Standalone Termination Unit Network Configuration CO Site Front Panel LED Status Indicators Rear Panel Interface Connections Snmp Trap Support Snmp Management CapabilitiesManagement Information Base MIB Support Network About the Hotwire 7984 Standalone Termination Unit Using the Asynchronous Terminal Interface User Interface AccessCommunication Port Settings Login Initiating an ATI Session Area SelectScreen Function Main Status Test Keys Screen Work AreasInput Field Value Choices Messages Navigating the Screens Keyboard KeysPress Screen Function Keys For the screen function Select Press Enter to Switching Between Screen Work Areas Example Ending an ATI Session Using the Asynchronous Terminal Interface Initial Startup and Configuration Overview Connecting Power to the Unit +24 Vdc Power Supply Pinouts Connecting to the Network Connecting to a System Terminal Entering Identity Information Main Menu → Control → ChangeIdentity Procedure Choosing a Configuration Mode Configuring the Unit Using the Configuration MenusConfiguration Option Area Configuration Option Set Configuring the Unit Using the Internal Switches Handling Precautions for STATIC-SENSITIVE Devices Switchpack Locations Switchpack S1 & S2 OFF = Switchpacks Disabled Switchpack DefinitionsSwitchpack S1 Definitions Switch # Allows you to OFF = Internal Clock Switchpack S2 Definitions Switch # Allows you to Load Configuration from Accessing and Displaying Configuration OptionsMain Menu → Configuration Load Configuration From If you select Then Main Menu → Configuration → Default Factory Configuration Edit/DisplayMain Menu → Configuration → Current Configuration Select To Access To Configure Configuration Loader Main Menu → Configuration → Configuration Loader Completed successfully Saving Configuration Options Save Configuration Download Code Download CodeMain Menu → Control → Download Code DSL Monitoring the Unit What to Monitor Viewing System and Test Status Main Menu → Status → System and Test StatusSystem and Test Status Health and Status SELF-TEST Results Health and Status Yyyyyyyy Call your service Self-Test Results Test Status Test Status Messages Meaning Viewing Network Error Statistics Main Menu → Status → Performance → Network Error StatisticsNetwork Error Statistics Viewing Network Performance Statistics This Field Contains This Field Contains Viewing DSX-1 Performance Statistics DSX-1 Performance Statistics This Field Contains Viewing 7984 Standalone Termination Unit LEDs Main Menu → Status → Display LEDsGeneral Standalone Termination Unit LEDs TypeLED is Indicating Monitoring the Unit Main Menu → TestingAccessing the Test Menu Test Running Network Tests Main Menu → Test → Network & DSX TestsNetwork & DSX Tests Line Loopback Repeater Loopback T1 to T1 Repeater LoopbackT1 to V.35 Repeater Loopback DTE Loopback Send Remote Line Loopback Send and Monitor Main Menu → Test → Device Tests Device TestsLamp Test Device Tests Ending an Active Test Telco-Initiated TestsTelco-Initiated Line Loopback Telco-Initiated Payload Loopback Telco-Initiated Remote Line Loopback Messages and Troubleshooting Configuring Snmp Traps Snmp Traps Options Device Messages Device Messages 1 What Message Indicates What To Do Device Messages 2 What Message Indicates What To Do Troubleshooting Troubleshooting 1 Symptom Possible Cause Solutions Troubleshooting 2 Symptom Possible Cause Solutions ATI Access Levels SecurityTables Creating a Login Administer LoginsLogin Entry On the Login Entry screen, for Enter Deleting a Login Controlling Snmp AccessAssigning Snmp Community Names and Access Types Resetting the Termination Units COM Port or Factory Defaults Main Menu → Configuration → Management → Security Menu If entering yes to prompt Then IP Addressing Selecting an IP Addressing Scheme IP Addressing Example Peer IP Address Assignments Configuration Option Tables Configuration Options in , Initial Startup and Configuration Main Menu → Configuration → Current Configuration → Network Interface Options MenuTable A-1. Network Interface Options 1 DSL Line Rate Possible Settings 400, 528, 784, 1040 Table A-1. Network Interface Options 2Circuit Identifier Table A-2. DSX-1 Interface Options 1 Main Menu → Configuration → Load Configuration From →DSX-1 Interface Options Port Status Table A-2. DSX-1 Interface Options 2 System Options Menu DSL ModeTest Timeout Table A-3. System Options 1 Table A-3. System Options 2 Telco Initiated LoopbackRemote Telco Loopback Table A-4. Communication Port Options 1 Port Type Possible Settings Asynchronous, SynchronousCommunication Port Port Use Table A-4. Communication Port Options 2 Inactivity Timeout Terminal Use Only Login Required Terminal Use OnlyPort Access Level Terminal Use Only Table A-4. Communication Port Options 3 Management and Communication Options Menu Telnet Session OptionsTelnet Session Options Table A-5. Telnet Session Options Communication Protocol Options Communication Protocol OptionsPPP Default Network Destination Node IP Address Possible Settings 000.000.000.000 ±Node Subnet Mask Possible Settings 000.000.000.000 ± Table A-6. Communication Protocol Options 1 Table A-6. Communication Protocol Options 2 Communication Port Link Protocol Table A-7. General Snmp Management Options 1 Community Name Possible Settings Ascii text field, PublicGeneral Snmp Management Options Snmp Management Name 1 Access Name 2 AccessTable A-7. General Snmp Management Options 2 NMS IP Validation Snmp NMS Security OptionsTable A-8. Snmp NMS Security Options 1 Number of Managers Access Level Table A-8. Snmp NMS Security Options 2 Snmp Traps Snmp Traps OptionsTable A-9. Snmp Traps Options 1 Number of Trap Managers Table A-9. Snmp Traps Options 2 NMS n DestinationEnterprise Specific Traps Link Traps Possible Settings Disable, Up, Down, Both Table A-9. Snmp Traps Options 3Link Trap Interfaces Snmp Traps AuthenticationFailureStandards Compliance for Snmp Traps WarmStart LinkUp and linkDown LinkUp/Down Variable-Bindings Enterprise-Specific Traps DSX Cables and Pin Assignments T1 Network Interface Position Modular Plug Unkeyed DB15 Socket Table C-2. DSL Network Interface Connector Signal Pin NumberDSL Network Interface Cable Figure C-3. COM Port-to-PC Cable Feature Number 7900-F1-507 COM Port Interface Cable Table C-3. COM Port Connector J6 Signal Direction Pin Number Power Input Connector Optional Power CableTable C-4. DC Power Connector Signal Pin Number Technical Specifications Specifications Criteria Technical Specifications Bridged tap Glossary511 COM port Frame relay Factory defaultsEthernet 703 Loopback ResetIP address Router SES Telnet Index IN-1 IN-2 IN-3 IN-4