Peavey MediaMatrix Nion - Page 81

NION Hardware Manual
June 11, 2012 Version 1.6.4b.1 77
The behavior of the fault relay is summarized below.
Event
Fault relay action taken
Role running
Pin 25 is connected to pin 12
Role stopped
Pin 25 is connected to pin 13
Unit or system muted
Pin 25 is connected to pin 13
Project halted
Pin 25 is connected to pin 13
Project erased / no project loaded
Pin 25 is connected to pin 13
Power off
Pin 25 is connected to pin 13
Connection
A 25-pin DSub connector (DB-25) is used for accessing the GPIO functions. Although you
can terminate GPIO functions directly to the DB-25 connector, we recommend that you use
the optional breakout accessory (GPIO-25: Peavey Part# 00510490).
The GPIO-25 is a convenient way to access each pin and facilitates easy rack wiring and
troubleshooting. The GPIO-25 is a DIN rail package and includes removable Euro connectors
for terminating the pins. A single DB-25 male/female cable connects the GPIO-25 to the
NION or CAB 4n.