Battery (Ac Power Fail) Alert Tone Operation; Revert To Low Rf Power Operation; Recorder Operation - Motorola APX 7500 Detailed Service Manual

Feature Operation: Battery (AC Power Fail) Alert Tone Operation
• Alert 2 sends a pulsed 1500 hertz tone alternating with an 800 hertz tone
• Alert 3 sends a pulsed 1500 hertz tone only
The alert tone is transmitted by the radio when the operator presses and holds the alert softkey (or
programmed button). The alert tone will continue to transmit for as long as the button is pressed.
After the button is released, the radio will remain keyed for a programmable period of time
(hangtime). The alert tone will be audible on the local speaker. When the operator hears the alert
tone stop, the operator will be able to resume normal Consolette operation (ex. key the radio from
any supported PTT source).

4.18 Battery (AC Power Fail) Alert Tone Operation

The Consolette can detect when it is operating on a DC input via the logic signal
(AC_POWER_GOOD) from the power supply and as a result can generate an alert tone to its local
speaker, to a remote user via the wireline, and over-the-air if the Consolette is currently transmitting.
This is useful for when remote notification of an AC power failure at the Consolette site is needed.
This feature can be enabled in the Consolette codeplug.
This alert tone is predefined and is a 1200 Hz tone generated for a duration of 125mS, repeated
every 10 seconds. The alert is automatically cleared when AC power is restored.
The power supply provides an AC_POWER_GOOD signal to the Consolette Mainboard. This signal
is logic High when operating from an AC source and logic Low when operating from a DC source. If
the Battery Alert feature is enabled, when a Low on the AC_POWER_GOOD signal is sensed, the
Consolette will generate a battery alert tone to notify the operator of an AC power failure. The alert
will be cleared when AC power is restored.

4.19 Revert to Low RF Power Operation

The Consolette can detect when it is operating on a DC input via the logic signal
(AC_POWER_GOOD) from the power supply and as a result can automatically revert to using the
low RF power setting as defined in the APX CPS on any future transmissions. This will help extend
the life of the backup battery in the event of AC power failure. Note that when AC power is restored,
the Consolette will automatically revert back to the power settings (High or Low) defined in the APX
CPS for that selected channel. This will have the effect of canceling any high or low RF power
selection that may have occurred by a local user at the front panel control head. This Revert to Low
RF Power Operation can be enabled/disabled in the onboard Consolette Configuration application
on the "Consolette Parameters" page.

4.20 Recorder Operation

The Consolette supports an RJ45 style connector on its rear panel for connection to an external
recorder.
The recorder output from the Consolette can be configured as follows:
• Receive audio – including tones (ex. Keyfail and Trunking)
• Receive audio and Transmit audio – including tones
• Disabled
Receive audio, tones, and transmit audio is output from the Codec and routed through a mux for
gating purposes such that audio is present at the recorder output at the appropriate times. The mux
control signal (REC_ACTIVITY*) is also provided at the rear panel for use with enabling/disabling the
external recorder.
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September 9, 2011