Busy Status - Tait TM8000 Series Applications Manual

3.2.1

Busy Status

Application
Configuration
Timing
Description
Related Actions
TM8000 3DK Hardware Developer's Kit Application Manual
September 2003 © Tait Electronics Ltd
This output signal is used to reflect the busy status, i.e. whether or not the
receiver detects an RF carrier (busy detect LED is on). The detection of the
RF carrier can be based on either signal strength (RSSI) or noise level.
This allows the radio to wake up a receiving modem or start voice recording
(for example).
Note
The detection method can be set in the Squelch Detect Type field
of the Networks / Basic Settings form (Basic Networks Settings
tab) of the programming application. For more information refer
to the online help of the programming application
Configure an output line and associate it with this action. Set the active state
to be high or low (as required).
The response time of this output line is <3ms for signal strength and <20ms
for noise level.
When the radio detects a change in the state of the busy-detect circuitry, the
radio sets the state of this output line to reflect the busy detect state. When
'busy', the output line is active. When 'not busy', the output line is inactive.
An indication of received signal strength is available from the RSSI output.
The 'Signalling Audio Mute
being received which also has valid signalling.
Status' output signal indicates that a signal is
Programmable I/O Lines 69