Verilink AS56/56Plus (896-502588-001) Product Manual - Manual (Page 61)

Testing in T1/FT1 Mode
AS56 and AS56 Plus User Manual 4-7
Serial Port Loop Local Loop ON causes a loop (at the Access Sy stem56 unit where the
command was entered). Remote Loop ON causes a loop at the Serial Port
at the distant end. In an Integrated Access, Fractional T1 environment, the
Serial Port link through the network is a logical point-to-point connection
and the “distant end” is the destination for the serial port data.
CAUTION
Local and Remote Loops should not be activated at the same time unless
the serial port BERT is also activated at the local end.
WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP
“OFF”.
!
Diagnostics
_Serial Port #1
From Diag. Menu,
UP/DOWN to
display:
SP Diagnostics
_Local Loop: On
SELECT to
display:
SP Diagnostics
_Remote Loop: On
SELEC , then DOWN
and SELECT as
required to display:
OR
To
DTE
1.536 Mbps 1.544 Mbps
Serial Port
Loop ON
Payload Network
Interface