AT&T MERLIN 820 User Manual

How to Use This Manual
2–LINE/5–TERMINAL
EXPANSION MODULE (SEE NOTE)
Model 820
Warning
Power
Admin.
Toll Prefix
Tone
Normal
Area Code
Pulse
T R
1 2 M1
M2
ON OFF
PAGING
SIGNAL
BACKGROUND
MUSIC
MUSIC
ON
HOLD
Off
On
Voice
Terminals
10
11
12
13
14
Tel. Co.
15
16
17
18
19
Lines
A
B
C
D
20
21
22
23
24
25
26
27
28
29
E
F
G
H
Cartridge Type I
FEATURE PACKAGE 2
Cartridge Type II
Cartridge Type III
POWER FAIL LINES
EXTRA ALERT
AB
NOTE:
Each 2-Line/5-Terminal expansion module gives you the capability to connect and use two outside lines and
five voice terminals. One expansion module is shipped with each control unit; therefore, to have more than
two outside lines and five voice terminals connected to your system, you must order additional expansion
modules. The control unit can handle up to four expansion modules.
Figure 1—Knowing Your Control Unit
Page 4

AT&T MERLIN 820 Specifications

General

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