Black Box COMPACT T1 MT850A - Manual (Page 547)

Compact T1 - Release 6.1 B-19
Diagnostices & Troubleshooting
Loopbacks Overview
V.54 Loop
Note: Local LED flashes yellow, remote LED flashes green.
Enable V.54 Loop
Where a V.35/V.54 card is in slot 6.
> set 6:1 v54 network enable
OK
Transmit V.54 Loopup
Receive V.54 Loopup
T1
Network
T1
Local
DTE
Adit 600
Equipment
Unit
Local
DCE
V.35
Adit 600
Network
Unit
Remote
DTE
Remote
DCE
V.35
Local unit send
V.54 loop up
code, loop occurs
at remote data
port
T1
Network
T1
Local
DTE
Adit 600
Equipment
Unit
Local
DCE
V.35
Adit 600
Network
Unit
Remote
DTE
Remote
DCE
V.35
Remote unit or
network sends
V.54 loop up code,
loop occurs at
local data port
Compact T1
Network
Unit Compact T1
Equipment
Unit
Compact T1
Network
Unit Compact T1
Equipment
Unit