3.2
Rear connec
Ɵ
ons
3.2
Rear connec ons
Figure 4: Rear view of TR-910
3.2.1
Antenna connector (50
Ω
BNC)
The antenna connector is of BNC type and shall be connected to an antenna with 50
Ω
impedance suited for
use in the opera ng frequency band, either connected directly or via a lightning arrestor. The arrestor is to
protect the transceiver from lightning strikes. If other types of connectors are required adapters are readily
available for N and TNC type connec ons.
3.2.2
DC input connector
The DC connector is of a rugged FF 250 quick connect type for easy connec on in vehicles.
Figure 5: DC-connector
The Red wire is the posi ve connec on and the Black wire is the nega ve connec on (GND). When installed in
a vehicle, the Green/Yellow wire is for connec on to the igni on key voltage. When connected to the vehicle
igni on, the radio will automa cally turn on/o
ff
with the igni on key. For other types of installa ons this wire
should be connected to the posi ve supply. The radio operates from a DC supply of +12 V to +28 V +/-10%.
Table 17: DC connector, pin out
DC input connector
Name
Pin
Func on
Red
1
Connected to + DC voltage
Black
2
Connected to ground
Green/Yellow
3
Igni on key + DC voltage sense
Doc. No.: 103614 TR-910 Operator Rev. AB
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