Comtech EF Data CDM-840 - Manual (Page 219)

CDM-840 Remote Router Revision 2
Appendix E MN-CDM840
E–7
E.5 Serial Adapter Cable Fabrication Specifications Reference
CAUTION: 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 the User P C R S-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 t o the CDM-840 O nsite 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 --