IBM System/32 Introduction And Maintenance Manual page 372

10.3.1.1 WT PSN Line Plate and Cable
Connections
Line Plate (PSN coupler)
CD
«
876543 2 1
\
o en 00 r - . . . CD LO . . , .
0 0 0 0 0 0
::>::>:::>:::> :::>:::>:::>:::>
Without
1····
g
een(9
[!]~)
With
[!];
eoo(9
er-...(9
eCD(9
§eLO(9
r:
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eM(9
Non-Japan
C
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10-6
Telephone Cable
Telephone
Cable Plug
Handset 2 (T2)
Red
Handset 1 (T 1 )
White
Telephone 1 (L2)
Black
Telephone 2 (L 1) Yellow
Yellow
Black
White
Red