AT&T Merlin II Installation And Maintenance Manual page 9

Central
office
lines
\
25 Pair cable
/
Jack Field
for outside
lines
Z122C Box
with
Z61OA
Adapters
FIGURE 1-2 A MERLIN II system behind-switch operation.
1-6 System Overview
Network
interface
66 Type
hardware
DIW cable
Power
Supply
D2R
cords
MERLIN II System
contol unit
DIW cable
4 0 8 4 0 8 4 0 8 4 0 8 4 0 8
PFT
PFT PFT PFT
PFT
1 6 20
0 8 1 2
0 4
19
0 7 1 5
1 1
0 3
18
0 6 1 0 1 4
0 2
17
0 5 1 3
01 0 9
4 0
1 6 2 4 3 2
0 8
1 5 39
0 7 23 3 1
1 4 22 3 0 38
0 6
1 3 37
0 5 2 1 2 9
0 4 1 2 20 2 8 36
1 1
03 19 2 7 35
02 1 0 1 8 2 6 34
0 9 1 7 33
0 1 2 5
Digital PBX
(System 25,
System 75,
or System 85)
D8W
cords
\
To voice
terminals
and
adjunct
equipment
/