COBHAM RT-7000 PMR User Manual

150-071724 Rev N
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Page 84 of 138
Pin(s)
Signal Name
Definition
73
Ground
Backshell
74
Antenna Switching Unit
1 Control
This pin provides control of an external Antenna Switching
Unit. This external control signal pulls the signal to ground to
indicate active. An active signal, or a signal pulled to ground,
represents the control channel is above 400MHz. When this
discrete is inactive, or respectively pulled high, the signal is
below 400MHz.
75
Antenna Switching Unit
2 Control
This pin provides control of an external Antenna Switching
Unit. This external control signal pulls the signal to ground to
indicate active. An active signal, or a signal pulled to ground,
represents the control channel is above 400MHz. When this
discrete is inactive, or respectively pulled high, the signal is
below 400MHz.
76
MIC_MODE_N
The RT-7000 PMR/RMR Mic Mode on pin 76 is configured to
facilitate a direct headset interface for the RT-7000 PMR/RMR.
If a ground is supplied to this pin then the RT-7000 PMR/RMR
will enter Mic Mode. Mic Mode will make Audio Port 1 enter Mic
Mode and Audio Port 1 will apply a bias voltage to the mic path
on pins 69 and 70 hence enabling a direct headset connection.
77
Reserved
78
Reserved
Table 7-2: RT-7000 PMR/RMR Signal Definition
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COBHAM RT-7000 PMR Specifications

General

Brand	COBHAM
Model	RT-7000 PMR
Category	Radio
Language	English