Carrier Access Network Device Axxius 800 Manuel d'utilisateur Page 517

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Axxius 800 - Release 2.2 C-7
Loopback Tests
Overview
Overview
A loopback test is a diagnostic procedure in which a signal is transmitted and returned
to the sending device after passing through all or a portion of a network or circuit. The
returned signal is compared with the transmitted signal in order to evaluate the integrity
of the equipment or transmission path.
DS1 Loopbacks
Note: T1 LEDs flash green during any DS1 loopback.
DS1 Line Loop
Loops at DS1 (at framer), signal not reframed. Have DS1 vendor check for framing/
errors.
Enable Line Loopback
> set a:1 line loopup
OK
T1
Axxius
Local
DTE
Local
DCE
V.35
DS1
Network
Loops DS1 as shown
Signal Not Reframed
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