Line Loopback - Paradyne 9161 User Manual

Line Loopback

9161-A2-GH30-40
The Line Loopback (LLB) loops the information received on the Network or
DSX-1 interface back to the source of the loopback. When used with a pattern
test at the remote node, LLB determines whether the problem is with the sending
device or the T1 facility.
DSX
All
Port
1s
All 1s All 1s
DCE DCE
Port 2 Port 1
The following tests cannot be running when a line loopback test is initiated:
H
Payload loopback on this Network or DSX-1 interface
H
Send Pattern Test on this Network or DSX-1 interface or any data port
assigned to this interface
H
Send Remote Line Loopback on this Network or DSX-1 interface
H
Send V.54 or Send FT1 Loopback on any port assigned to this Network or
DSX-1 interface
H
Data Channel Loopback on any data port assigned to this Network or DSX-1
interface
CAUTION:
Line Loopback may affect the operation of the FDL, DDL, or EDL. Any IP
data being sent while this test is active will be disrupted. Also, any
performance statistics being sent over the EDL will be disrupted.
Framer
Network
LLB
Interface
496-15197
April 1999
Troubleshooting
9-23