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Keyword 2000 to RS-
232 Gateway
01/20/04 Page 15 of 20
5 Connectors
The gateway uses two connectors. One connector is for the RS-232 link and is DB9F. The second connector is a
DB9M for the CAN bus (low speed, medium speed, and high speed), Class 2 bus, Keyword, power, and ground.
The following pin outs are used:
5.1 RS-232 Connector (J3-DB9F)
A straight pass cable should be used to connect the gateway to the host computer.
DE-9s Pin # Use
2 TX to Host
3 RX from Host
8 CTS
6 DSR
5 GND
5.2 Bus and Power Connector (J4-DB9M)
DE-9p Pin # Use
1 Ground
2 NC
3 NC
4 NC
5 NC
6 NC
7 NC
8 Keyword 2000
9 12 volt