Honeywell HRTL-One Pin, Type, Table, Function, 9-PinCOM Port Pinouts

Installation

		Table 2-3	9-Pin COM Port Pinouts
Pin	Type	Function
1	RS232-TX:	The HRTL-One can be controlled remotely by an external device or control system
	RS232	(for example, a control keyboard), using RS-232 serial communications signals. See
		RS-232/RS-485 Remote Protocol, page 30.
2	RS232-RX:	The HRTL-One can be controlled remotely by an external device or control system
	RS232	(for example, a control keyboard), using RS-232 serial communications signal.
3	Video loss	If video loss occurs, the system sends a signal to trigger another accessory. This pin
		output becomes Low when video loss occurs, and remains High under normal
		operation.
4	Switch out	Connect to the VCR trigger recording terminal of the multiplexer to synchronize
		recording signals. The default mode is falling (negative) edge.
5	Error out	This pin becomes Low when hard drive errors occur and remains High under normal
		operation.
6	Rec start	This pin can accept the external trigger signal to activate record mode from an
		external device. Options are:
		Low: (default) When the external signal turns to Low it triggers the HRTL-One record
		mode.
		High: When the external signal turns back to High the HRTL-One stops recording.
7	External alarm	Under normal operation, COM (pin 15) connects with NC and disconnects with NO
	NC	(pin 8).
		When an alarm is triggered, COM disconnects with NC and connects with NO.
8	External alarm	Under normal operation, COM (pin 15) connects with NC and disconnects with NO
	NO	(pin 7).
		When an alarm is triggered, COM disconnects with NC and connects with NO.
9	GND	Ground
10	RS-485-B	The HRTL-One can be controlled remotely by an external device or control system
		(for example, a control keyboard) using RS-485 serial communication signals.
11	RS-485-A	The HRTL-One can be controlled remotely by an external device or control system
		(for example, a control keyboard) using RS-485 serial communication signals.
12	Disk full	Under normal operation the state remains High.
		When the disk is full, the HRTL-One sends a Low state.
		Example:

When the hard drive is full and you have installed another HRTL-One recorder, a signal can be sent to the next HRTL-One to activate recording.

Rev 1.00	12	Document 900.0259
		10/04