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OPERATION
The SM1 has three buttons; PTT, Button 1 and Button 2. The PTT button is the larger oblong button, Button 1 is
the top round button with one nub and Button 2 is the bottom round button with two nubs.
PTT Button:
The PTT button is used to send a PTT command to the radio to cause the radio to transmit and send the ANI.
Button 1 and Button 2:
Button 1 and Button 2 are momentary buttons that can be programmed for Scramble On/Off, Next Key, Lone
Worker On/Off, Lone Worker Reset and Emergency ANI. The functions can be selected by a short press, long
press (press and hold for 1.5 seconds) or double press.
Scramble On/Off:
Pressing the assigned button in the programmed manner (i.e. short press, long press) will
toggle the scrambler between clear and scramble mode. The speaker will emit a medium tone followed by a high
tone to indicate scramble mode and a medium tone followed by a low tone to indicate clear mode.
Next Key:
Pressing the assigned button in the programmed manner (i.e. short press, long press) will toggle the
scrambler to the next code if programmed for multiple codes. The speaker will emit a number of beeps
corresponding to the code number being selected.
Lone Worker On/Off:
Pressing the assigned button in the programmed manner (i.e. short press, long press) will
turn the Lone Worker feature on and off. When enabled the unit must have user interaction (i.e. PTT press,
movement or Lone Worker Reset button press) within the programmed amount of time otherwise the unit will
send the Emergency ANI.
Lone Worker Reset:
Pressing the assigned button in the programmed manner (i.e. short press, long press) will
reset the Lone Worker feature. The Lone Worker feature can also be reset by pressing the PTT or the
accelerometer detecting motion (if programmed).
Emergency ANI:
Pressing the assigned button in the programmed manner (i.e. short press, long press) will
cause the unit to send the programmed Emergency ANI.
Man-Down (Accelerometer):
If programmed for Emergency ANI, Lone Worker or both and the unit does not detect motion for a programmed
amount of time, the unit will key and generate the Emergency ANI. The movement detection threshold is
programmable.
ANI Encode:
When the PTT button is pressed and/or released, the unit will assert the PTT Output and send the
programmed ANI tones to the radio.
ENI Encode:
When button programmed for Emergency ANI is pressed, or the Lone Worker or Man-Down
features are activated, the unit will assert the PTT Output and send the programmed Emergency ANI and the
voice message to the radio.
