14
Connection
TB7100 Installation Guide
© Tait Electronics Limited May 2005
You must connect the DC supply from the battery to the base station via a
readily accessible disconnect device such as a fuse or DC-rated circuit
breaker with the appropriate rating, as shown in the table below. The DC
input leads should be of a suitable gauge to ensure less than 0.2V drop at
maximum load over the required length of lead.
Terminate the DC input leads with a suitable crimp connector for attaching
to the rear panel DC input M4 screws.
2.3
RF Connections
RF Input and Output
The RF input to the TB7100 base station is via the N-type connector on
the rear panel of the base station. The RF output is via the N-type
connector on the rear panel of the base station.
We recommend that you use dual-screened coaxial cable such as RG214 for
the N-type connections.
When the base station is used in simplex mode using a single antenna with
a coaxial changeover relay, the isolation of this relay must be
≥
40 dB.
Nominal Supply
Voltage
Input Voltage
Range
Circuit Breaker/
Fuse Rating
Recommended
Wire Gauge
a
a. For a length of 1.5m to 2m (5ft to 6.5ft) (typical).
13.8VDC
10VDC to 16VDC
20A
8AWG / 8.35mm
2
Figure 2.2
Recommended DC power connection
Battery
TB7100
base station
Circuit Breaker
or Fuse
