Installation
The External Al
e
rter and Record
i
ng Inter
f
ace c
a
n be installed in
the
large
or
s
mall port
o
f a 39
0
2, 3903 , 3
9
04 or 3
9
05 Digit
a
l
Telephone. Three ou
t
put connectors a
r
e provided
o
n the
back
of th
e
External A
l
erter and Reco
r
ding I
n
terface cartr
i
dge as shown in F
i
gure 1.
0
.
There
is no need
t
o disconnect the power su
p
ply f
r
om th
e
telep
h
one prior to inser
t
ion
or extraction of the Meridian External Alerter and Recording Interface cartridge
.
Figure 1.0
External Alerter and Recording Interface Installation And Application Guide
4
