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Reference, Gpi i/o, Reference gpi i/o – Grass Valley KMV-3901 Installation v.7.70 User Manual

Page 33

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KMV-3901/KMV-3911

Guide to Installation and Operation

Reference

GPI I/O

Audio

SMPTE 299M (limited to one pair, embedded on group 1, pair 1)

Cable length

100 m (328 feet) for 3G or HD, 256 m (840 feet) for SD (Belden 1694A)

Alignment jitter

(100 KHz)

< 0.2 UI

Connector

DIN 1.0/2.3

HD-SDI monitoring outputs (2) (continued)

Internal

Universal Reference from the Densité frame

Note:

If your housing frame is referenced, then all KMV-3901/3911

cards within the frame must have their output heads configured with
a refresh rate that matches the reference signal’s refresh rate.

GPI inputs (8)

Description

Contact closure to GND

Pull-up voltage

3.3 Volts

Source current

30 μA when input shorted

Low-level activation

0.8 Volts max

Over voltage

24 Volts max

Connector

Terminal block interface PCB via DB-26

GPI outputs (2)

Description

Contact closure to GND

Signal

Open collector 5 to 12 VDC

Contact closure current

50 mA max

Reverse voltage

-15 Volts max

Reverse current

-50 mA max

V out low

0.6 Volts at 1.5mA

Connector

Terminal block interface PCB via DB-26