X.21bis/V.35 STRAIGHT
DB15F Multiplexer Composite DTE
to Network DCE Cable
MUX DB15M Connector
UNC 4/40 Screws
V.35 34 Way MRA Male
Connector
Type at Connector
(Normal Use)
1
A
SHIELD
-
8
B
COMMON
Common Return
2
P
TXDa
Generator
9
S
TXDb
Generator
3
C
RTS
Generator
10
H
DTR
Generator
4
R
RXDa
Load
11
T
RXDb
Load
5
F
DCD
Load
12
E
DSR
Load
6
V
RXCa
Load
13
X
RXCb
Load
7
Y
TXCa
Load
14
AA
TXCb
Load
Notes:
1
Dashed lines show wires to be twisted pairs.
2
Cable type: Belden 9507, 7 twisted pair overall screen (or equivalent). Maximum length 100
Metres.
3
Connector shell and termination must be as specified in the EMC section (Appendix C.)