Trilogy Communications Commander - Page 47

Commander Installation Guide
Trilogy Communications Limited Page 47 of 81
Issue 9.1
GPIO (Local logic in and out) - D9 Fixed Socket
Pin
Function
Notes
1
Ground
2
Logic Input 1
3
Logic Input 2
4
Logic 2 Out Common
5
Internal +5V (Out)
Protected with 0.5A thermal fuse & 1N4002 diode.
6
Logic Output 1
7
Logic 1 Out Common
8
Logic Output 2
9
Logic Input +VCC
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
Pin
Function
Notes
1
No connection
2
+12V Out
Fused internally 0.5A
3
Clean Mic Out +
Line level, balanced, pair with 11 –
o/p is affected by CUT switch
4
Ext CUT Input
Parallel function to front panel Cut
Switch. Ground to activate
5
Chassis Ground
6
LS Ground
Rev 4 hardware & later only
7
External Input to LS Amp -
Line level, balanced, pair with 14
8
Matrix Audio Input to Panel / parallel output -
Line level, balanced, pair with 15
9
No connection
10
No connection
11
Clean Mic Out -
Line level, balanced, pair with 3
12
Internal Ground
13
LS Out
Rev 4 hardware & later only
14
External Input to LS Amp +
Line level, balanced, pair with 7
15
Matrix Audio Input to Panel / parallel output +
Line level, balanced, pair with 8