Contact Closure Interface - Cisco D9858 Installation And Configuration Manual

Appendix A
Technical Specifications
Item
Type of connector
Max. voltage
Max. current

Contact Closure Interface

Item
Connector type
Minimum duration of event
guaranteed to be detected
Max. on generator impedance 100 ohms
Min. off generator impedance
344
Specification
Terminal block
≤ 30 V AC, ≤ 30 V DC
≤ 1 A
Specification
9-pin sub-D female
250 ms, 1 frame period, for example, for 1080i/25
Hz, 40 ms for DPI applications
100 kilohms