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TTH Series 2
Monaural
Binaural
**Mic ground must be connected to the power/phone ground (pin 3) in the
intercom for the microphone circuit to function.
Framingham, MA 01701-9168
Vehicle Interface Connector
Physical Appearance
SIZE
FSCM
CLASS
A
32108
TTH
Prior to
DWG NO.
RF
273139
Connection
Pin-out
Pin
Function
1
Shield
2
PTT
3
Ground
(power and audio)
4
Boom mic
Ground**
5
Left/Right earcup
audio
6
Boom mic
Signal**
7
Power
Pin
Function
Shield
Shield
Contact
1
Right earcup
audio
2
PTT
3
Ground
(power and audio)
4
Boom mic
ground**
5
Left earcup
audio
6
Boom mic
signal
7
Power
SHEET
7 of 25
REV.
01D
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