Belden Grass Valley KALEIDO-X16, Installation & Service Manual

Page: 35 / 152

35
Kaleido-X16
Hardware Description & Installation Manual
GPI Circuits
The individual GPI contacts are reconfigurable as either inputs or outputs. For interfacing
purposes, the input and output circuit configurations are as shown in the following
diagrams:
You should ensure your GPI physical connections are well established. In the following
example, the goal is to trigger a relay and light up a light.
To facilitate cabling of the GPI inputs and outputs, a terminal block adapter is available
separately (order code KXA-TBA-44). The GPI Terminal Block Adapter accommodates up to
44 terminal block connections using positive and negative terminal connections. Each
column on the terminal block has 6 positive and 6 negative terminal connections that
correspond to each pin position. Negative pins (labelled with an N) on the Terminal Block
Adapter are not used as connections. Positive pins (labelled with a P) and Ground pins
(labelled with a GND) correspond to GPI input connections:
CAUTION
In the example, below, make sure your P and N connections are in the proper
polarity otherwise your GPI output will always be in the ON state.
Microprocessor
Input
1.5k
Ω
24.9k
Ω
VCC
GPI #P
GND
GPI / Genlock Card
Buffer
Microprocessor
Output
200
Ω
VCC
GPI #P
GPI #N
GPI / Genlock Card
GPI configured as INPUT GPI configured as OUTPUT
Microprocessor
Output
200

VCC
GPI #P
GPI #N
GPI / Genlock Card
Power
Supply B
Relay
Power
Supply A
Indicator Light
+
-
+
-