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