Honeywell PRO-2200 installation manual LED Operation, Power, Communications, Mode

PRO-2200 Two Reader Module PRO22R2 Installation Guide 11

LED Operation

The Reader board uses two on-board LEDs D79 & D80 to provide status information during its Power-up sequence as well as normal operation.

MODE	LED	LED	DESCRIPTION
	D79	D80
	ON	OFF	Start Power-up, hardware setup
Power-up	OFF	ON	Testing RAM
Sequence	ON	ON	Testing ROM and completing initialization
	FLASH	ON	LED D79 flashes 4 times after
			Power-up is completed
			This is the processor heart-beat LED. It flashes once
			every second. A short ON time (~20% duty cycle)
	FLASH		indicates the board is off-line or has lost serial
Normal			communication with the Controller board. A long ON
			time (~80% duty cycle) indicates the board is online
Operation
			and communicating with the Controller board.
		FLASH	Flash when there is activity on its Serial Port.

In addition to the status LEDs, there are 6 additional relay status LEDs on board. When any relay is energized or ON, its corresponding status LED will become ON also. The LED will remain ON for as long as the relay is energized. The assignment for each relay status LED is shown in the following table.

RELAY#	1	2	3	4	5	6
LED	D73	D75	D74	D76	D77	D78

Power

The Two Reader Board accepts 12 VDC with an operating range of 10 to 16 VDC and consumes 400mA of current. Locate power source as close to this board as possible. Connect power with minimum of 18AWG wire. The input voltage is regulated to 5 VDC. The regulated voltage or the 12 VDC (pass through) is available for powering the readers. The selection is made via jumpers and is available at both reader connectors.

NOTE: POLARITY for 12 VDC power is important. Make sure the +12 VDC is connected to the terminal labeled +12V and the return is connected to the terminal labeled GND.

Communications

The Two Reader Board communicates to host controller via an RS-485 interface. The interface allows for multi-drop communication of up to 4,000 feet (1,200 m) total per port. Use two twisted pair (minimum 24AWG) with shield for communication. The default speed of this port is 38.4Kbps but it can be downgraded to 19.2Kbps or 9.6Kbps if the line conditions or receiving equipment require it (see jumper and DIP switch settings).