Nortel Meridian 1 Description page 95

Figure 22
Back of telephone showing MCA
Flashing
LED
Figure 23
Block diagram of MCA and Modular telephone
EIA
RS-232-C Drivers
DTE I/F Receivers
RS-232
interface
Communications adapter
MDAD
µ
P
A64
+12V
+5V
Power Supply
-12V
Telephone
MTDC
A44
+5V
µ
P
Power supply
option card
Meridian 1 Telephones Description and Specifications
Data options Page 95 of 104
553-1897
Meridian 1
I
S D
D or L
L C
C
553-1854