Testing in t1/ft1 mode, Local loop, Testing in t1/ft1 mode -2 – Verilink AS56/56Plus (896-502588-001) Product Manual User Manual
Page 56: Local loop -2
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Testing the Access System 56
4-2
AS56 and AS56
Plus
User Manual
Testing in T1/FT1 Mode
This section discusses the various tests available for the AS56
Plus
,
operating in T1/FT1 mode.
Local Loop
When the Local Loop is ON, the front panel
LP
LED will illuminate and
local testing can be performed by external DTE equipment or by Access
System 56’s internal BERT
SELECT
as required to turn the Local loop off or on.
Diagnostics
_Ntwk Port
From Diag. Menu,
UP/DOWN
to
display:
NI Diagnostics
_Local Loop..:_Off
SELECT
then
DOWN
to
display:
1.536 Mbps
1.544 Mbps
Local Loop OFF
(Normal Data)
1.536 Mbps
1.544 Mbps
Local Loop ON
Payload
Network
Interface
Payload
Networ
Interface
To
DTE
To
DTE
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