Grass Valley NewsroomSuite v.5.5 - Manual (Page 149)

Digital News Production 145
GPI Pin Assignments
There are 2 COM port connectors on the backplane of the NewsroomSuite
computer, COM1 and COM2, which are located alongside the other
motherboard connectors. Both COM ports are generally used for the NewsQ
application but can also be used with NewsEdit XT. See the User Guide for
setting up the GPI Commands in relationship to the pins shown in the
illustration and table below.
Pin COM1 Function COM2 Function
1 - -
2 - -
3 - -
4 - -
5 Chassis Ground Chassis Ground
6 IN 2 IN 5
7 +12V +12V
8 IN 1 IN 4
9 IN 3 IN 6
Provide +5 to +24 volts to an input to trigger.