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TB9100/P25 CG/P25 TAG Installation and Operation Manual Operation 83

To set the mode for the control panel microphone:

1. Use the CH button to select the channel you want to use.

2. Press the microphone button once to set the mode to analog FM. The

green microphone LED is lit.

3. Press the microphone button a second time to set the mode to

digital P25. The green microphone LED flashes.

When the mode is digital P25, microphone calls use the NAC (network

access code) in the current signaling profile. The call destination is to all

units in the channel group.

When the mode is analog FM, calls use the sub-audible signaling in the

current signaling profile.

Control panel calls can be made when the base station is in either Standby

or Run mode.

Transmissions from the microphone override any other calls. Before

using the microphone, make sure that the channel is clear. Otherwise,

any calls in progress on that channel, including emergency calls, will be

terminated.

4.2 Monitoring with the CSS

You can monitor the performance of your base station remotely with the

CSS. Use the monitoring forms to view information about the current state

of the base station. These forms provide details about the PMU, PA and

reciter modules. They also display operational information, such as whether

the base station is currently operating in digital P25 or analog FM mode, the

status of the network link, and the status of voting.

4.3 Monitoring Front Panel Fan Operation

When you turn the base station on, the PA and PMU fans should turn on

and then off. Check that this happens, to make sure that the fans are

working.

In an operational base station, you can test that the PA and PMU fans are

working by requesting the base station to turn them on. This is done using

CSS diagnostic forms and is recommended after fixing a fault or replacing a

fan. When you fit a fan, use this test to check that the fan is correctly

connected to the appropriate PA or PMU. The CSS will toggle the fan on

for a set number of seconds, then the test will end and control of the fan will

revert back to the base station.

Tait TB9100 User Manual

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