Customer Accessible Inputs And Outputs; Serial Connector; I/O Connector - Agilent Technologies G8610A Operation Manual

A.3 Customer Accessible Inputs and Outputs
A.3.1 Serial Connector
Use the SERIAL connector on the Rear Panel to interface the leak detector to a PC via an
isolated RS-232 connection. Table A-5 and Figure A-1 provide details of the connection. A
typical connection from a 9-pin PC serial connector requires a female-to-female, 9-pin, null
modem cable, where pins 2 and 3 are crossed.
Pin
2
3
5
A.3.2 I/O Connector
Table A-6 lists the optional discrete I/O PCB (P/N# R2111501) pin signals. This I/O
connector provides a means for a controller, usually a PLC, to control or to determine the
leak detector status. The I/O is accessible via a type DB25S (female socket) connector.
Pin
No. Signal Name
15, + VIN
19,
23
17, VRET
21
1 CAL_OUT
152
Agilent Technologies Helium Leak Detector
Table A-5 Serial Connector Summary
EIA Name
Received Data
Transmit Data
Signal Common
Figure A-1 Serial Connector Map
Table A-6 I/O Connector Pin Signals
I/O Signal
N/A +5 V to Customer-supplied +5VDC
+24 to + 24VDC for Output
VDC Common pins.
N/A 0 VDC Customer -supplied GND for
the Input Common pins.
O Level Active HIGH when the leak
detector is in CALIBRATION
mode.
Data into the leak detector
Data out of the leak detector
RS-232 Ground
2 3 5
Description
Description
Leak Detector Behavior
Performs calibrating routine
with the Internal Calibrated
Leak; Zeroing routine is
included.