Verilink Access Manager 2000 (896-502037-001) Product Manual - Manual (Page 315)

Activating/Deactivating CSU loopbacks
Access Manager 2000 User Manual 8-45
• If you are working on a 551VST type CSU, you will see the
following menu:
All Verilink 551VST type CSUs respond to functions A
through I on this menu; the exceptions are the 551VST List 1
and 1/A CSUs and the 4016 List 1 CSU, which respond to
functions
F and G only (PLB). When these CSUs are
equipped as far-end circuit elements, they respond only to D
and E when these codes are sent from the near-end CSU.
3. Select the CSU loopback operation you want.
4. After choosing a loopback function, the Specify Near End or Far
End screen appears.
5. Enter N for the near-end CSU to receive the loopback request, or
enter Y for the far-end CSU to receive the request. This menu does
not appear if you choose the Send Inband Loop Up or
Send Inband Loop Down option.
6. Press to execute the loopback command, or press to
cancel it.
F5 F2