User's Manual

8 | P a g e
J3 - buttons interface connector
Pin number
Function
Gauge
2
GND
30
3
Initial power to initiate “on” to connect to MFB
30
4
Blue led Indication
30
5
Red led Indication
30
6
Green led Indication
30
7
VCC to operate the buttons
30
8
Mic Mute button
30
9
DMC button
30
10
Volume Up
30
11
Volume Down
30
12
MFB Multi-Function button
30
Mate to Molex 51021-1100
J4 – Future use
Pin number
Function
Gauge
2
NA or RTS
NA
3
Spare PIO (10) or CTS
30
4
Spare PIO (23) or URX
30
5
Spare PIO (21) or UTX
30
Mate to Molex 51021-0400