Local Loopback Tests; Sending A V.54/Ansi Ft1 Activation/Deactivation - Paradyne 3163 User Manual

Sending a V.54/ANSI FT1
Activation/Deactivation
"
Procedure
To send a V.54 or ANSI FT1 Activation or
Deactivation loopback sequence to the far-end DSU/CSU:
1. From the top-level menu screen, select Test.
2. From the Test screen, select Rlpbk.
Test:
Rlpbk Lpbk
F1
3. From the Rem Loopback screen, press the
function key that corresponds to the specific
loopback test you want to perform. Use the scroll
keys, if necessary.
Rem Loopback:
LLBUP LLBDN 54UP
F1
The 54UP, 54DN, FT1UP, and FT1DN commands
send the requested sequence out the network
interface on the DS0 channels allocated to Port 1.
The sequence is sent to the far-end DSU/CSU.
During this time, Sending appears on Line 2 of
the LCD, followed by Command Complete when
the sequence is complete.
During the Sending message, you can press the
and keys without affecting transmission
of the loopback sequence.
LLB
LLB N/A
PLB NO
RLB YES
DCLB NO
DTLB YES
3163-A2-GB20-10
Ptrns
F3
F2
F2 F3
Table 4-5
Valid Loopback Combinations
PLB
NO
N/A
NO
NO
YES
March 1999

Local Loopback Tests

The Local Loopback tests enable you to conduct circuit
testing and fault isolation for the digital line. The
supported local loopback tests are:
Line Loopback (LLB)
Payload Loopback (PLB)
Repeater Loopback (RLB)
Data Channel Loopback
Data Terminal Loopback
The Line Loopback command can be activated and
deactivated in response to commands received over the
network interface. The Network Interface configuration
option NET LLB controls whether the DSU/CSU
responds to the commands transmitted on the network
interface to initiate LLBs (see Appendix C,
Options).
The data port configuration option NET DCLB
controls whether the DSU/CSU responds to inband V.54
commands to initiate DCLB for that port (see
Appendix C, Configuration
Local loopback tests can be aborted (Abort Command)
at any time.
No more than two local loopbacks can be active at any
one time. An additional restriction prohibits certain
loopbacks from running at the same time. Valid loopback
combinations listed in Table 4-5 are identified by YES.
RLB DCLB
YES NO
NO NO
N/A NO
NO NO
YES NO
Monitoring and Testing
(DCLB)
(DTLB)
Configuration
Options).
DTLB
YES
YES
YES
NO
NO
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