Arizona Jerome 631-X operation manual Optional Communications Capability, Instrument I/O Interface

Optional Communications Capability

Alarm output	30V DC, 100mA
Data output	1.	RS-232 Serial, Baud Rate 1200 for use with data
		logger, and/or Jerome communication program.
	2.	RS-232 Serial data format with 0 & 20mA current
		logic levels; Baud Rate 1200 (special industrial
		applications) and Analog 20 mA output.

"OPTION BOARD" - See APPENDIX D - JEROME 631-X OPTION BOARD on page 40.

Analog output	0 to 2V or 4 to 20 mA
Auto sample interval	5, 15, 30, or 60 minutes
Auto regeneration interval	6, 24 or 72 hours

Instrument I/O Interface

The 631-X I/O port (25 pin D-sub) provides the following functions:

•Serial data communication

Interface type: RS-232C full duplex, DCE

Parameters: 1200 Baud, 1 start bit, 8 data bits, 2 stop bits, no parity

Pin assignments:
Pin 1	Protective ground
Pin 2	Data in
Pin 3	Data out
Pin 7	Data ground

•Serial current loop

Interface type: 20mA current loop, full duplex

Parameters - 1200 Baud, 1 start bit, 8 data bits, 2 stop bits, no parity

Pin assignments:

Pin 1 Protective ground

Pin 4 Data out (+)

Pin 5 Data in (+)

Pin 14 Data out (-)

Pin 16 Data in (-)

Page 28 of 50 AZI Customer Service 800-528-7411 or 602-470-1414