SINGLE DROP - STAR WIRING

RS232 Serial Port Cable
FEMALE cable plug mates with PC DB9 pin Male COM connector			MALE cable plug mates with AMI J3 DB9 pin Female connector
COM Port pin	signal	Direction	BTR J3 pin	signal
3	TX		2	RX
2	RX		3	TX
5	GND		5	GND
1	DCD	jumper1
4	DTR
6	DSR
8	CTS

Notes:

1. The ADR BTR only uses 3 RS232 signals - do not connect any signals to the pins not listed for AMI J3.
2. Be sure RS232 jumper is in place and RS422 jumper 422 is removed.
3. Software may require jumper1 on the PC end of the cable (4pins shorted together):