Commander Installation Guide
Trilogy Communications Limited Page 49 of 81
GPIO (Local logic in and out) - D9 Fixed Socket
Protected with 0.5A thermal fuse & 1N4002 diode.
NB Pin 9 may be driven by external voltage (With dropper
resistor if greater than 5V), or by internal +5V via pin 5.
Audio I/O – D15 Fixed Socket
Line level, balanced, pair with 11 –
o/p is affected by CUT switch
Parallel function to front panel Cut
Switch. Ground to activate
External Input to LS Amp -
Line level, balanced, pair with 14
Matrix Audio Input to Panel / parallel output -
Line level, balanced, pair with 15
Connect to slave panel; pin 4 on this
panel type
Line level, balanced, pair with 3
External Input to LS Amp +
Line level, balanced, pair with 7
Matrix Audio Input to Panel / parallel output +
Line level, balanced, pair with 8