Black Box COMPACT T1 MT850A - Manual (Page 537)

Compact T1 - Release 6.1 B-9
Diagnostices & Troubleshooting
Loopbacks Overview
DS1 Payload Loop
Loops at DS1 (in framer)
and reframes the T1.
Have DS1 vendor check
for framing/errors.
Enable Payload Loopback
> set a:1 payload loopup
OK
View Status of Loopback
> status a:1
SLOT A:
Status for DS1 1:
Receive: Traffic
Transmit: Traffic
Loopback: PAYLOAD
Disable Payload Loopback
> set a:1 payload loopdown
OK
View Status of Loopback
> status a:1
SLOT A:
Status for DS1 1:
Receive: Traffic
Transmit: Traffic
Loopback: OFF
T1
Adit 600
Local
DCE
V.35
Loops DS1 as shown
Reframes the T1
Local
DTE
FXS
Telephone
DS1
Network
Compact T1