Running loopback tests, Loopback in multiplexer units – RAD Data comm ASMi-52 User Manual
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Installation and Operation Manual
Chapter 6 Troubleshooting and Diagnostics
ASMi-52 Ver. 2.5
Testing ASMi-52
6-19
ASMi-52
Bert Results
Local
Remote
Run time (seconds)
2000
Sync loss state
sync loss
Sync run time (seconds)
2000
Sync loss counter
2000
Total bits
3000
Error bits
50
BER
5.5E-4
>
ESC-prev. menu; !–main menu ; &–exit terminal
Figure 6-19. Bert Results Menu
4. Configure the local/remote port accordingly.
Running Loopback Tests
ASMi-52 supports the local and remote loopbacks as per ITU V.54, by using the
following methods:
• From the supervisory terminal.
• Via corresponding pins of the synchronous interface, for the ASMi-52 with
V.35 interface and RS-530 interfaces only.
Loopback in Multiplexer Units
Figure 6-20 is an illustration of how loopback works in the local ASMi-52.