Installation and Operation Manual

Table Of Contents
20 Description TB7300 Installation and Operation Manual
© Tait International Limited November 2019
1.5.2 Online and Offline Modes
The base station normally operates in Online mode, but you can put it into
Offline mode via its web interface.
Online Mode In Online mode, the base station is in service and performs its normal
functions of transmitting and receiving radio signals.
Offline Mode Offline mode allows a maintenance engineer to carry out tasks that can not
be done while the base station is in service, such as activating firmware or
running diagnostic tests.
1.5.3 Power Supply
The supply interface board accepts a nominal 13.8VDC input. The supply
interface is fused at 15A.
1.5.4 Front Panel Fans
The base station is equipped with three fans. Two fans are for the receiver,
exciter and control boards, and the third is for the PA. Front panel fans do
not operate continuously, but are switched on and off as needed. The fans
can also be temporarily enabled for test purposes via the web interface.
When the base station is powered up, the fans turn on until the main
software fully boots.
Configuring Fan
Control
The operation of the PA fans are configurable via the web interface; you
can specify the threshold temperature at which the fan will turn on, and set
the fan to operate only when the PA is transmitting.
Notice The TB7300 base station fans can’t be monitored remotely.
Malfunctioning fans may activate the PA and reciter temperature
alarms, depending on the ambient temperature and duty cycle of the
transmitter.