INFICON SQC-122 Thin Film Deposition Controller Operating Manual - Manual (Page 62)

Appendix
C. I/O Connections
Two 15-pin D-sub connectors, located on the rear of the SQC-122, provide Input/Output
connections.
Relay I/O Connectors
Inputs can be activated either by connecting to a switch and shorting to Ground, or they
can be driven by a TTL compatible signal.
W ARNING : These are not isolated inputs! The voltage level applied must be limited to
between 0 and +5 volts with respect to Ground.
W ARNING : Output relays are rated for 30Vrms or 30VDC, at 2A maximum. Proper
fusing, and adequate wiring insulation and separation, should be provided to assure
these limits are not exceeded.
Relay I/O 1-4 Relay I/O 5-8
Pins Connection Pins Connection
1,2 Relay 1 1,2 Relay 5
3,4 Relay 2 3,4 Relay 6
5,6 Relay 3 5,6 Relay 7
7,8 Relay 4 7,8 Relay 8
9 Input 1 9 Input 5
10 Input 2 10 Input 6
11 Input 3 11 Input 7
12 Input 4 12 Input 8
13,14,15 Ground 13,14,15 Ground
Refer to Sections 3.6 for relay and input definitions.
1 8
9 15