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Chapter 7. Test Menu
61200420L1-1 ESU 120e User Manual 7-3
Figure 7-2. Network Loopback Tests
LOCAL LOOPBCK
There are three available choices for setting the local loopback:
Scroll to select a setting and record it by pressing Enter. The unit
returns the display of 1)LOCAL LOOPBCK and 2)REMOTE LOOP-
BCK
REMOTE LOOPBCK
FE1 Loopback sends V.54 loopback code in all mapped TSOs
toward the network. Far end will respond by initiating a local line
loopback.
TEST PATTERN
All Ones
Sends an all ones pattern to the network.
All Zeros
Sends an all zeros pattern to the network.
Line On Activates the line loopback
Payload On Activates the payload loopback
No Loopback Deactivates the loopback
ESU 120e
E1
NI CSU
Payload Loopback
Line Loopback
Secondary
Interface