Snbu Strapping - IBM System/32 Introduction And Maintenance Manual

10.4.8 SNBU Strapping
Standby Feature Jumpers
•
D
• E • C •
• A •
A Required
• F . • G •
G G F F
• F . • G •
Location M2
• H. • H •
J J J J
• H. • H •
B Required for 4 wire (not used for 2-wire
leased line)
• B •
SNBU Transmit Level Attenuation Strapping
Note:
Transmit level should be marked on
coupler.
If jumper location C, 0, or E is listed, attach
one jumper; if jumper location F, G, H, or J
is listed, attach all four jumpers.
o
db
G,
J
1 db
C, G,J
2 db
0, G,J
3 db
E, G, J
4 db
F,J
5 db
C, F, J
6 db
0, F, J
7 db
E, F, J
8db
G,H
9 db
C,G,H
10 db
D,G,H
11 db
E,G,H
12 db
F,H
13 db
C,F,H
14 db
D,F,H
15 db
E,F,H
Data Communications 10-29