User's Manual

EX7100 Technical Manual - Appendix A
©1999 Exicom Technologies (1996) Ltd A-6 Issue 2 – February 2001
A.7 Sync Data (DB15) to V.35 (M34) Interface Cable (DCE)
If required, Exicom can supply an adapter cable to provide an industry standard (M-34)
V.35 connection to user equipment.
Note: The physical specifications of V.35 are not clearly defined, and vary from one
equipment manufacturer to another. Some modifications to either Exicom’s interface
cabling, or the user equipment cabling, may be required.
Pin number
EX7100 Sync Data
Signal Description Signal Direction Pin number
V.35 (M-34F) Connector
1 Rx Data (+)
←
P
2 Rx Data (-)
←
S
3 Tx Data (+)
→
R
4 Tx Data (-)
→
T
5 CTS
→
D
6 RTS
←
C
7 not used
8 Signal Ground B
9 Rx Clock (+)
←
U
10 Rx Clock (-)
←
W
11 Tx Clock (+)
→
V
12 Tx Clock (-)
→
X
13 DSR
→
E
14 DTR
←
H
15 not used A-Shroud
RTS, CTS, DSR, and DTR, are generally not used in synchronous transmission. If
necessary these signals should be set to ‘On’ in the user equipment.
The following diagram shows various data clock configurations.