64 Connections TB7100 Service Manual
© Tait Electronics Limited October 2005
5.1 External Connectors
Figure 5.2 shows the external connectors:
DC Power
Connector (12V DC)
The base station is designed to accept a nominal 13.8V DC, with negative
ground.
The DC power connector (J105) at the rear of the base station is a heavy-
duty M4 screw terminal connector suitable for many forms of connection.
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.
Figure 5.2 External connectors
programming/microphone
connector (PROG/MIC)
ground
point
serial data
connector
(IOIOI)
system
connector
(SYSTEM)
DC power
connector
(12VDC)
receiver
antenna
connector
(R
X)
transmitter
antenna
connector
(T
X/ANT)*
*Tx/ANT is Tx and Rx, if the duplexer is fitted
Pin Signal Name Signal Type Notes
1 13.8VDC input
2 ground input
external view
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