Monitoring and Testing
4-16
3166-A2-GB20-20
March 1999
Remote Loopback Tests
The Remote Loopback tests enable you to troubleshoot your circuit by sending
the following to a far-end device:
For Networks
Line loopback up activation sequence for 10 seconds (LLBUP)
Line loopback down activation sequence for 10 seconds (LLBDN)
For Channels
V.54 activation sequence to initiate a V.54 Loop 2 (54UP)
V.54 deactivation sequence to terminate a V.54 Loop (54DN)
ANSI T1.403 (Annex B) activation sequence to initiate a DCLB on the remote
device (FT1UP)
ANSI T1.403 (Annex B) deactivation sequence to terminate a DCLB on the
remote device (FT1DN)
You cannot perform remote loopbacks if any of the local loopbacks are active. If
you attempt to do so, the error message
Invld Test Combo
(Invalid Test
Combination) appears.
Summary of Contents for 3166 DSU
Page 1: ...ACCULINK 3166 DSU CSU USER S GUIDE Document No 3166 A2 GB20 20 March 1999...
Page 16: ...About This Guide x 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 20: ...Introduction 1 4 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 68: ...SDCP Operation 3 42 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 102: ...SDCP Menu A 2 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 140: ...Pin Assignments D 12 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 166: ...SNMP MIB Objects E 26 3166 A2 GB20 20 March 1999 This page intentionally left blank...
Page 192: ...Equipment List I 2 3166 A2 GB20 20 March 1999 This page intentionally left blank...