Dataprobe PowerPal Single - Manual (Page 3)

POWER PAL Page 3
POWER COMMAND SEQUENCE
A call placed to PAL is answered in one of four ways. In all cases, Pal answers the call and listens for a power
control code. If the command control code is received, Pal will respond with the current status of the A/C power
and allow power control commands. Once power control is complete, Pal will disconnect the call. If the Extension
is rung, by pressing 0 no additional control codes are accepted. The call sequence is:
Answer à à Power Control Code → →
Power Control à àCall Complete
CALL ANSWER MODES
PowerPal has four ways it can answer an incoming call. The mode you select will depend on who is usually calling
PowerPal and how secure you want the power control to be. In all cases, the number of rings before PowerPal
answers the call, additional security codes and how the call is passed on to the Extension Port are selectable.
Normal Answer Mode
In this mode, PowerPal will answer the call and generate a ‘Ringback’ signal. This signal is like the one you hear
when the phone company is ringing Pal. During the quiet times of the ringback, PAL listens for the command
control code. If, after two ringbacks, no tones are heard, Pal will check the security level. With security level 0
and 1, Pal will ring the Extension Port. With security level 2 the call is disconnected.
Use the Normal Answer Mode if: Voice or Fax calls are being made to the device on Pal’s
Extension Port and you don’t want the caller to know that Pal is there.
Answer and Prompt Mode
Pal answers the call and issues three short beeps to signal the caller. If no command control code is received in 6
seconds, Pal will check the security level. With security level 0 and 1, Pal will ring the Extension Port. With
security level 2 the call is disconnected.
Use the Answer and Prompt Mode if: You want a more secure line or you want to know exactly
when to put in the power control codes.
Answer and Quiet Mode
Pal will answer the call and be quiet for 10 seconds, waiting for the command control code. If it is not received
within 10 seconds, Pal will check the security level. With security level 0 and 1, Pal will ring the Extension Port.
With security level 2 the call is disconnected.
Use the Answer and Quiet Mode if: You want secure control of power and the shortest time
before the extension is rung or if you want to use the wait for quiet answer command.
(@ for most modems.)
Answer and Dial Tone Mode
Pal will answer the call and send 4 seconds of dial tone, then it waits 6 seconds for the command control code. If it
is not sent within the 6 seconds, Pal will check the security level. With security level 0 and 1, Pal will ring the
Extension Port. With security level 2 the call is disconnected
Use the Answer and Dial Tone Mode if: You are using automated access and wish to utilize your modems
wait for second dial tone command. (W for most modems)