AMX AXB-IRS4 Using the AXlink-to-DB-25 connector cable for a PC system, DB-25 Wiring Pinouts

Configuration and Installation

FIG. 8 shows the AXlink/RS-232, DB-9, and power supply wiring diagram. For some applications, you may need to strap pins 7 (request to send) and 8 (clear to send) together depending on the PC (as shown in the illustration).

12 VDC PWR connector	PWR (+)
on AXB-CAM	GND (-)
	PWR(+)
AXlink/RS232 connector	AXP/TX
on AXB-CAM	AXM/RX
	GND (-)

12 VDC power supply

2 (RXD)

3 (TXD)

5 (GND)

DB-9 connector (male)

FIG. 8 AXlink/RS-232, DB-9, and power supply wiring diagram

Using the AXlink-to-DB-25 connector cable for a PC system

The AXlink/RS-232 connector on the back of the AXB-IRS4 can be connected to a PC-based system with a DB-25 connector cable. Connector pins 2, 3, and 7 are used for data and ground. Refer to the following table for the DB-25 wiring pinouts.

DB-25 Wiring Pinouts

Pin	Signal	Function	Pin	Signal	Function
1	N/A	Not used	6	DSR	Data set ready
2	TXD	Transmit data	7	GND	Signal ground
3	RXD	Receive data	8-19	N/A	Not used
4	RTS	Ready to send	20	DTR	Data terminal ready
5	CTS	Clear to send	21-25	N/A	Not used

FIG. 9 shows the AXlink/RS-232, DB-25, and power supply wiring diagram. For some applications, you may need to strap pin 4 (ready to send) to 5 (clear to send) and/or pin 6 (data set ready) to 20 (data terminal ready) depending on the PC.

12 VDC PWR connector	PWR (+)
on AXB-CAM	GND (-)

PWR(+)

AXlink/RS232 connector AXP/TX on AXB-CAM AXM/RX

GND (-)

12 VDC power supply

2 (TXD)

3 (RXD)

7 (GND)

DB-25 connector (male)

FIG. 9 AXlink/RS-232, DB-25, and power supply wiring diagram

8 AXB-IRS4 IR/Serial Interface (4 Ports)