Measurement Computing USB-ERB24 - Manual (Page 24)

USB-ERB24 User's Guide Specifications
Pin Signal Name
22-NO Relay 22 Normally Open contact
23-NC Relay 23 Normally Closed contact
23-C Relay 23 Common contact
23-NO Relay 23 Normally Open contact
24-NC Relay 24 Normally Closed contact
24-C Relay 24 Common contact
24-NO Relay 24 Normally Open contact
4-5