Controlling Gpi Pullup Voltage; Controlling The Genlock Bnc Termination - evertz 7710ARC Series Manual

In systems where the ARC series module is installed in a frame fitted with a 7700FC
VistaLINK
over Ethernet using the VistaLINK
8.3.

CONTROLLING GPI PULLUP VOLTAGE

Jumper J16, is located near the centre, bottom edge of the module and controls whether the GPI inputs
are pulled up to 5 volts or 12 volts. See section 2.2 for more information about activating a GPI input.
GPI SELECT: To pull the GPI inputs and outputs up to +12 volts install this jumper in the position
closest to the front card edge of the module.
To pull the GPI inputs and outputs up to +5 volts install this jumper in the position
closest to the rear edge of the module.
8.4.

CONTROLLING THE GENLOCK BNC TERMINATION

The TERMINATION jumper J21, located at the rear of the module near the GLCK IN BNC, determines
whether the input signal will be terminated with 75 ohms or not.
When set in the "75R" position, the input impedance is set to 75 Ohm. Use this position when the cable
stops at this card. It will provide the proper impedance to eliminate electrical reflections.
If set to "HI-Z", the input will be high impedance. Use this position when the signal does NOT stop at this
card. Install a "T" connector on the GLCK IN BNC to "loop" the signal through this card.
WARNING: Make sure that the final destination of the signal is terminated into a
75 Ohm load. Otherwise, reflections will occur affecting the signal throughout the
cable.
Frame Controller module, you can also upgrade the module firmware
®
Revision 1.1
7710ARC Series - SD Aspect Ratio Converter
Pro software.
®
7700 MultiFrame Manual
7710ARC-45