971, 972, 974 Transducer Pin-outs

SubD 15 pin HD male/3 relays
Pin Description
1 RS485 (-) / RS232 Transmit
2 RS485 (+) / RS232 Receive
3 Power (+)
4 Power (-)
5 Analog Output (+)
6 Analog Output (-)
7 Relay #1 NO
8 Relay #1 Common
9 Relay #1 NC
10 Relay #2 NC
11 Relay #2 Common
12 Relay #2 NO
13 Relay #3 NC
(971 only - cold cathode enable)
14 Relay #3 Common
15 Relay #3 NO

Analog Output
The Series 970 have standard 15 pin HD SUBD connector and an analog output voltage pressure signal of 0.5VDC/decade. It can also emulate analog voltage outputs from a variety of other vacuum transducers. The emulation feature can be used to upgrade and replace other vendors'� gauges in OEM applications without changing system software. Contact MKS technical support for details.

This information is subject to change without notice.

Need help?

Contact an Application Specialist by sending an email to MKS Instruments or call 978-645-5500.