Serial Port Pin Connectors

An optional CA-47 cable (or equivalent) connects ChartScan to the computer. The ChartScan side of the cable has a male DB9 connector for use with the RS-232/422 serial port. The cable’s computer side has 2 connectors: one for DB9, and the other for DB25. Other crossover-type cables can be used if wired as shown in the figure. The following table lists the RS-232 and RS-422 pin connections for a DB9.

		Computer	NetScan					Computer	NetScan
	DB25	DB25		DB9	DB9			DB9		DB9
	DB25	TXD 2	2 RXD					RXD 2	2 RXD
2 3 4 5	7
					2 3		5
		RXD 3	3	TXD				TXD 3	3	TXD


		CTS 5	5 GND					GND 5	5 GND
		GND 7	7	RTS	7	8		RTS 7	7	RTS
		RTS 4	8	CTS	7	8		CTS 8
		RTS 4	8	CTS				CTS 8	8	CTS

Interface Wiring Diagram

Pin #	RS-232	Signal
	Pin Description
1	No connection	N/A
2	Receive Data (RxD-)	Input
3	Transmit Data (TxD-)	Output
4	No connection	N/A
5	Ground	Ground
6	No connection	N/A
7	Request to send (RTS-)	Output
8	Clear to send (CTS-)	Input
9	No connection	N/A

ChartScan to PC Connection (RS-232)

DB9 Male

Pin & Signal

2RxD-

3TxD-

GND

7RTS-

8CTS-

Cable

Wiring

⇐

⇒

⇔

⇒

⇐

DB9 Female Pin & Signal

3	TxD-

2	RxD-

5	GND

8CTS-

7RTS-

ChartScan Connection (RS-422)

DB9 Male

Pin & Signal

Cable Wiring

1	RxD+	⇐
		⇐
2	RxD-	⇐
		⇒
3	TxD-	⇒
		⇒
4	TxD+	⇒
		⇔
5	GND	⇔
		⇒
6	RTS+	⇒
		⇒
7	RTS-	⇒
8	CTS-	⇐
9	CTS+	⇐

3-8	ChartScan User’s Manual

1400 specifications

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Omega Vehicle Security 1400 Serial Port Pin Connectors, Cable Wiring DB9 Female Pin & Signal

Models: 1400