V.35 Loopbacks - Black Box Compact T1 MT850A User Manual

Diagnostices & Troubleshooting
Loopbacks Overview

V.35 Loopbacks

Local
DTE
Compact T1
Equipment
Equipment
Equipment
Loopback
V.35 Line Loop
Note: V.35 LED flashes green during line loop.
Loop occurs at V.35 port. Check for sync and errors at local data port.
Local
DTE
Telephone
Enable Line Loopback
Where a V.35 card is in slot 6.
> set 6:1 line loopup
OK
B-14
Local
DCE
V.35
T1
Adit 600
Line
Loopback
Unit
Unit
Local
DCE
V.35
FXS
Adit 600
Compact T1
T1
Network
Compact T1
Adit 600
Network
Network
Unit
T1
Loop occurs at V.35
port (location)
Remote
DCE
V.35
V.54
Loopback
Unit
DS1
Network
Compact T1 - Release 6.1
Remote
DTE