Avaya 8400B Plus User Manual
Isolating Problems Using Loopback Data Tests
D-12
Issue 2 November 1996
Arrangement. If this succeeds, the problem is isolated to the network or to the
remote host equipment. The user is then instructed to call a Loop-Around Data
Test Arrangement at the host site (see
remote host equipment. The user is then instructed to call a Loop-Around Data
Test Arrangement at the host site (see
). If this call succeeds, then
the problem is not in the network between the switches.
Figure D-8. Using the Loop-Around Data Test Arrangement in a Network
Setting Up a Loop-Around Data Test
Arrangement
Arrangement
The Loop-Around Data Test Arrangement does not require special switch
administration over and above the normal switch administration procedure for
the 8400B Plus Data Module.
administration over and above the normal switch administration procedure for
the 8400B Plus Data Module.
), separate 8400B Plus Data Modules must be set up for each
Terminal
or
PC
Data Module,
PC/PBX,
or
Asynchronous
Data Unit
8400B Plus
Host
Data Module
Loopback
Plug
DCP
or ADU
Loop-Around Data
Test Arrangement
Test Arrangement
Two-Wire
DEFINITY
Communications
System
G3V2
or later
DEFINITY
Communications
System
G3V2
or later