Dual Trunk E1 Router

Table 8-3 Tests Allowed Through Telnet Connection

Test

COM

NET

Self Test

Yes

Yes

 

 

 

Loop Net

Yes

No

 

 

 

Loop Payload

Yes

No

 

 

 

Loop Up Remote

Yes

No

 

 

 

Loop Down Remote

Yes

No

 

 

 

QRW Pattern

Yes

No

 

 

 

1:7 Pattern

Yes

No

 

 

 

3:24 Pattern

Yes

No

 

 

 

1:1 Pattern

Yes

No

 

 

 

All 1s Pattern

Yes

No

 

 

 

All 0s Pattern

Yes

No

 

 

 

1:2 Pattern

Yes

No

 

 

 

1:4 Pattern

Yes

No

 

 

 

User 1 Pattern

Yes

No

 

 

 

User 2 Pattern

Yes

No

 

 

 

Lamp Test

Yes

Yes

 

 

 

NOTE: You do not need to notify the telephone company that you are running the tests. However, if the tests reveal a problem with telephone company service or with the Dual Trunk E1 Router, you should inform the telephone company that the Dual Trunk E1 Router must be removed from service.

When performing a test, you can:

Initiate loopbacks and tests on full bandwidth or on NET 1 or NET 2.

Set programmable test patterns

Link Layer Diagnostics and Delay Monitoring

When installing or maintaining wide area connections, you must verify the end-to-end operation of the WAN links. With dedicated E1 line, you can verify the WAN link by placing the Dual Trunk E1 Router on one end of the line in a loopback test and initiating the transmission of a pattern test from the other end. The pattern is received and monitored to detect transmission errors.

Dual Trunk E1 Router User’s Guide

TECHNICAL: 0118 96 56 000

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Black Box LRU4240 manual Link Layer Diagnostics and Delay Monitoring, Test