Verilink AS100 (896-502379-001) Product Manual Manual de usuario descargar pdf (Pagina 59)

Access System Centum Series User Manual 4-7

Line Loop

LLB causes a local line loop (at the Centum Series unit where the

command was entered). RLB causes a remote line loop (at the distant end

of a point-to-point circuit); RLB should not be attempted in an Integrated

Access, Fractional T1 environment.

The CSU is excluded from the test path in a Line Loop configuration.

In a point-to-point circuit, the LLB and RLB are useful for looping back

any testing initiated by the other end, such as Payload, Serial Port, or

DSX-1 BERTs or any externally generated testing.

In an Integrated Access, Fractional T1 circuit, LLB is useful for looping

back Serial Port or DSX-1testing initiated by any remote location.

WHEN TESTING IS COMPLETED, BE SURE TO TURN THE LOOP

“OFF”.

Diagnostics

_NI/DSX-1 Port

i

ag. Menu,

/

DOWN

to

display:

NI/DSX-1 Diag.

NI LLB...:_On

D

OWN

and

ELECT

as

t

o display:

NI/DSX-1 Diag.

NI RLB...:_On

D

OWN

and

S

ELECT

as

t

o display:

OR

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