Motorola PL3307, Integration Manual

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Getting Started 1 - 5
Beeper and Decode LED Signals from the PL3307
The BEEPER_OUT and HOST_DEC_LED* output lines provide user feedback but do not provide enough
current drive for the actual beeper and LED device. Additional buffering is required.
The PL3307's beeper output ranges from 2.352 KHz to 2.963 KHz. The beeper output is a 50% duty cycle
square wave at maximum volume, 12.5% at low volume.
If using a non-inverting driver to buffer the HOST_DEC_LED* line, connect the output of the driver to the
cathode (-) end of the LED.
Table 1-4
User Interface Indications
Description
Indication
SSI Event
Beeper Decode LED
Trigger pull No sound No light TRIGGER_PULLED
No decode NODECODE_MSG
Wakeup WAKEUP
Decode Middle Tone Flash of light DECODE
Snapshot started Low Tone Blinking SNAPSHOT_START
Snapshot is complete Low Tone No light SNAPSHOT_COMPLETE
Bootup Low Tone, Middle
Tone, High Tone No light BOOTUP
Transmission error Four Low Tones No light TRANSMIT_ERROR
Entry error Low Tone, High Tone Flash of light ENTRY_ERROR
Defaults set High Tone, Low Tone,
High Tone, Low Tone Flash of light DEFAULTS_SET
Parameter entered PARAM_ENTERED
Number entry expected High Tone, Low Tone Flash of light NUMBER_EXPECTED