IBM System/34 Maintenance Manual page 420

,---,'
o
F2 L2
n n
U
1200 BPS
Modem
Adapter
A-B3 Board
External Cable
Line
Plate Cable
TB1-6 Handset 2 (T2)
TB1-7 Handset 1 (T1)
TBl-8
Telephone 1 (L2)
TBl-9 Telephone 2 (L 1)
Clock
U2
n
U
Telephone
Plug
Black
Yellow
White
Red
Line Plate
~=S3:1=====
L1
4= L2
Through D-B8-1
on Cabie Tower
Note:
If the 1200-bps integrated modem is installed
on line 2,3, or 4, see Figures 30-5 and 30-7 for hard-
ware locations.
-L1
L2
Figure 30-10. 1200 BPS Integrated Modem-World Trade Public Switched Network (Line 1)
30-310
Multiline Communications Adapter 11
•