IBM System/360

SMS Line Levels
Down Levels
Up Levels
Line Ideal Swing
(volts)
(volts)
Jype
(volts)
Low
High Low High
B
0 to+ 6
+ 0, l
+ 0.3
+2.7 +6.8
B
0 to+ 6
+ 0, l
+ 0.3
+5.6 +6.8
B
0 to+ 6
- 0,8 + 0.8
+3.2 +6.8
c Otol5ma
- 4, l
- 0.3
+0.6
+3.1
D
-2.5 to +2.5 - 5,0
- 0.7
+0.7 +5.0
E -6 to +6
- 25.0 - 3.0 +3.0 +25.0
Es
+0.0 to -12.6
- 3,09 -12.6 +0.2
-0.0
N ± from 0 ref - 3,0
- 0.4
+0.4 +l.2
N
± from 0 ref
- 0.9
- 0.4
+0.4
+0.6
p
± from -6 ref
- 7, 2
- 6.4
-5.6 -3.0
p
; from -6 ref
- 6,6
- 6.~
-5.6 -5-.2
Q
Oto40ma - 3,8 - o.5* +0.6
+2.4
R 0 to +12
- 0.4
+ 0.2
+5.6
+12.5
s -12 to 0
-12,5
- 5.6 -0.2 +0.4
s
-12to0 -12,5
- 6.9
--0.5
0.0
S'
-6 to 0
- 6, 9
- 5.9 -0.5 0.0
T -6 to +6
- 6, 2
- 0.7
+l.4 +6.2
u
-12 to 0 -12 5
- 7.4
-5.3 +0.2
v Any
w
Hoto-48
-53 0
- 43.0 -2.0 0.0
x -30to+l0 -60 .0
- 18.3
+5.5 +40.0
y
-6 to 0 - 8 .B - 5.B
-0.7 -0.1
z
-6 to +6 - 7 .0 - 4.2 +3.0 +6.2
* High down level con go t·o +0.1 on some circuits
0 to relay source voltage; typically, 0 to -48
IBM CONFIDENTIAL
Application
DDTL, Uncompensated
DDTL, Compensated
DDTL, DE Choin
Std Interface DL, OT
DEFL
EIA Std Data Sets
SMAL Logic
Alloy Current Sw
Diffused Current Sw
Alloy Current Sw
Diffused Current Sw
DL ond OT
CTRL
CTRL
SDTRL
Clamped SDTOL
and SDTRL (7074)
CTOL
CTOL
Special
Relays
Tubes
SDTOL
Magnetic Shift Cores
S/360 53