User's Manual

26 Operating Controls TB8100 Installation and Operation Manual
© Tait Electronics Ltd June 2003
Speaker Volume
Controls the volume of the speaker mounted behind the control panel.
Rotate clockwise to increase the volume, and anticlockwise to decrease the
volume.
Speaker Button and
LED
The speaker button cycles the base
station audio through three states. At
power-on the speaker is off and the
receiver audio is gated (muted).
Pressing the button once turns the
speaker on, but leaves the audio gated.
Pressing the button a second time
leaves the speaker on and ungates the
audio (monitor mode). Pressing the
button for a third time returns to the
start of the sequence, with the speaker
off and audio gated.
The green speaker LED is lit when the speaker is turned on.
Receive LED The green receive LED is lit when a valid signal is received on its associated
base station.
Speaker The control panel is fitted with a 0.5W speaker. Audio from either or both
base stations can be connected to this speaker.
Power LED The green power LED is lit when the PMU is turned on and supplying
power to the TB8100 BSS.
Carrier Button and
Transmit LED
The carrier button is a momentary press switch. When held down, it keys
the transmitter while disabling the 600Ω balanced and unbalanced line, and
microphone audio. The transmitted signal is unmodulated, i.e. carrier only.
The red transmit LED is lit while its associated transmitter is transmitting.
Alarm LED The red alarm LED will flash at a rate of 2 to 5Hz when an alarm has been
generated by any of the TB8100 BSS modules. It will continue to flash until
the alarm is cancelled or the fault is fixed. Note that only those alarms
which are enabled using the Service Kit (Configure > Alarms > Alarm
Control) will cause this LED to flash. Refer to the Service Kit
documentation for more information.
power on
speaker off,
audio gated
speaker on,
audio gated
speaker on,
audio ungated
press
press
press