IBM 3278 Series

08
09
10
I
111
1"
13
08
09
1
10
I
11
12
13
0
B
0
0
0
B5
0 B
6
0
0 0
0 0
b 0
d
,..
0
,..
DC Return 25
MSR Fuse
01S1/J2
DC Return
~
V (Coax Shield)
I
I
Sel Pen Sw NC (White)
to.
-'
Sel Pen Signal (Coax)
Sel Pen Sw NO (Yel)
-6.2 Vdc (Black)
+12.6 Vdc (Red)
Amplifier
Card
.
MSR
To
Selector
Pen
C5 or E5 (D)
01Sl/J4
r--+f:...:,.t-fT--~~ To Control Unit
C1
Figure 4·15. Feature Cabling
SV27·2510-6 (1/81) 4·17