Linear AM3Plus installation instructions Wiegand Accessories, RS-232 Port

Wiegand Accessories

The two AM3Plus Wiegand inputs (READER A & B) can connect to a large variety of 26, 30, and 31-bit Wiegand output accessories. The Wiegand format is a common standard for access control equipment. A typical application would be to add swipe card or proximity readers to the system.

✦NOTE: Depending on the Wiegand accessory used, the LED1, LED2, and HOLD connections may not be required.

•LED1 output is switched to ground during non-access time.

•LED2 output is switched to ground for one second during access time.

1.Mount and install the Wiegand accessory as described in its installation instructions.

2.Route a cable from the AM3Plus to the accessory.

•For wire runs up to 300 feet use 24 AWG Belden 9931 or equivalent.

•For wire runs up to 500 feet use 20 AWG Weico 9405 or equivalent.

3.Connect the cable to the accessory and the AM3Plus as shown in the fi gure.

AM3PLUS	PWR GND DAT0 DAT1 LED1 HOLD LED2
READER
TERMINALS

PWR GND	DAT0 DAT1 LED1	HOLD	LED2
	REMOTE
	WIEGAND
	DEVICE

NOTE: THE LED1, LED2, AND HOLD CONNECTIONS MAY NOT BE REQUIRED DEPENDING ON THE WIEGAND DEVICE USED

RS-232 Port

A modular connector is provided for the bi-directional 38.4K baud RS-232 port. The AM3Plus RS-232 port connects to a personal computer’s COM port. System programming can be performed locally with a computer connected to the RS-232 port.

AM3PLUS

RS-232 PORT

COMPUTER'S

COM PORT

SET COMPUTER COM PORT

LINEAR MODEL A2C BAUD RATE TO 38,400 BPS SERIAL COMPUTER CABLE

NOTE: USE A DB-25 TO DB-9 CABLE ADAPTER IF REQUIRED

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