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Testing
5-10
7975-A2-GB20-40
December 1998
Send Remote Data Channel Loopback
The local termination unit can send an Up or Down sequence to request the start
or stop of a Data Channel Loopback (DCLB) on a remote unit.
98-15935
NTU/LTU
Port
Interface
Framer
EIA-530
Port
CAP
All 1s
NTU/LTU
Port
Interface
Framer
CAP
Local Remote
" Procedure
To send a Remote DCLB:
1. Position the cursor at the Up or Down selection next to Send Remote DCLB
on the SYNC Data Port Tests screen.
2. Press the spacebar to select the desired code (Up or Down).
3. Position the cursor at the Start command next to Send Remote DCLB on the
SYNC Data Port Tests screen.
4. Press Enter.
The Status field is changed to Sending. The Up or Down sequence
transmission stops automatically after 10 seconds. You cannot stop the
sequence manually.
The Send Remote DCLB test cannot be started when a Send and Monitor 511
test is active on the network interface.