AT&T MERLIN 820 User Manual

Trouble on More Than One Voice Terminal
Step 23.
From one voice terminal, try to make an outside call on each of the outside
lines.
IF
THEN
The trouble appears on the same
The trouble is caused by the con-
outside line button as before,
trol unit or the expansion module.
Put the modular cords back in
their original position. Then, go to
the “Tel. Co. Lines Test” in the
“Test C: 2-Line/5-Terminal
Expansion Module Test” section.
The trouble appears on a different
Put the modular cords back in
outside line button,
their original position at the con-
trol unit. Then go on to Step 24.
Step 24.
Go to the network interface and switch the two modular cords (see Figure
33).
820 CONTROL UNIT
SWITCH MODULAR
LINE CORDS HERE
NETWORK
INTERFACE
Figure 33—Switching Modular Line Cords at the Network Interface
Page 65

AT&T MERLIN 820 Specifications

General

Brand	AT&T
Model	MERLIN 820
Category	Conference System
Language	English