Comtec CDM-840 - Serial Adapter Cable Fabrication Specifications Reference

CDM-840 Remote Router MN-CDM840
Appendix C Revision 3
C–7
C.5 Serial Adapter Cable Fabrication Specifications Reference
CAUTION – The European EMC Directive (EN55022, EN50082-1) requires using
properly shielded cables for DATA I/O. To ensure proper operation, fabrication of
this Serial Adapter Cable requires that :
• You must wire the connectors using the pinout tables and diagram provided
here.
• Type 'D' connectors must have back-shells with continuous metallic shielding.
• Type ‘D’ cabling must have a continuous outer shield (either foil or braid, or
both). The shield must be bonded to the connector back-shells.
Description: PC Serial Port Interface
User PC Interface End
Cable Connector Type: D-Subminiature DB-9F
(Type D-Sub 9-pin Female)
Use: For connection to your User PC RS-232 Serial
Port
Description: CDM-840 “CONSOLE” Port Interface
CDM-840 Onsite Unit Interface End
Cable Connector Type: D-Subminiature DB-9M
(Type D-Sub 9-pin Male)
Use: For connection to the CDM-840 Onsite Unit
“CONSOLE” Port
WIRE LIST / PINOUT
WIRE LIST / PINOUT
PIN
SIG
NAME
DTE (PC)
PIN
ASYNCHRONOUS
SYNCHRONOUS
1
DCD
DATA CARRIER DETECT
IN
1
GROUND
GROUND
2
RXD
RECEIVE DATA
IN
2
RS-232 Rx DATA OUT
RS-232 Rx DATA OUT
3
TXD
TRANSMIT DATA
OUT
3
RS-232 Tx DATA IN
RS-232 Tx DATA IN
4
DTR
DATA TERMINAL READY
OUT
4
--
RS-232 Rx CLOCK OUT
5
GND
SIGNAL GROUND
--
5
--
RS-232 Tx CLOCK OUT
6
DSR
DATA SET READY
IN
6
RS-232 Tx DATA ‘B’ IN
--
7
RTS
REQUEST TO SEND
OUT
7
RS-232 Tx DATA ‘A’ IN
--
8
CTS
CLEAR TO SEND
IN
8
RS-232 Rx DATA ‘B’ OUT
--
9
RI
RING INDICATOR
IN
9
RS-232 Rx DATA ‘A’ OUT
--