Valid Loopback Combinations; Starting A Line Loopback - Paradyne ACCULINK 316x Operator's Manual

ACCULINK 316x DSU/CSU
LLB
N/A
LLB
PLB NO
DLB YES
RLB YES
DCLB NO
DTLB YES

Starting a Line Loopback

The Line Loopback command (LLB) loops the
received signal on the network interface back to the
network without change.
To perform a Line loopback,
1. Press F2 to select Test from the top-level display
screen.
DSU ESF
Stat
F1
4-6
Table 4-2

Valid Loopback Combinations

PLB DLB
NO YES
N/A YES
YES N/A
NO NO
NO YES
YES YES
Test Cnfig
F2 F3
December 1996
RLB DCLB
YES NO
NO NO
NO YES
N/A NO
NO YES
(on separate
ports)
YES YES
(on separate
ports)
2. From the Test screen, press F2 to select Lpbk.
Test:
Rlpbk Lpbk
F1
3. From the Loopback screen, press F2 to select
LLB.
Loopback:
Abort LLB
F1
Test Started appears on Line 2. If a line loopback
is already in progress, the Already Active
message appears. If an invalid combination of
loopbacks is in progress, the error message
Invalid Test Combo appears (see Table 4-2 for
valid loopback test combinations).
DTLB
YES
YES
YES
YES
YES
(on separate
ports)
YES
(on separate
ports)
Ptrns
F2 F3
PLB
F3
F2
3160-A2-GB22-10