Philips SM30 manual Call Station, ‘Press-To-Talk’ Key fig.6.1H

NOTE: If a Function Key and the Keypad are both selected to activate a call, the last selection will always have precedence, cancelling any other selection.

During Installer programming a program is available to prevent the user of the Call Station from addressing specific zones selected via the keypad (see program 14.3.12).

Function Key LED (fig.6.1A) Whenever a Function Key is pressed the LED illuminates, together with any Zone Selection Indicators activated by the routing of the Function Key. When the call is completed the LEDs will be extinguished.

‘Press-To-Talk’ Key (fig.6.1H)

Activates a call after the zones have been pre- selected using the Key Pad or Function Key. The way in which a call is executed, and how the ‘Press-To-Talk Key’ is used, depends on the type of signal and/or message with which the Key Pad, Function Key, or Microphone is programmed.

■Call without signal or message:

Will stop when the ‘Press-To-Talk’ Key is released.

■Call with attention signal and/or non- repeating message:

Will stop when the ‘Press-To-Talk’ Key is released.

■Call with attention signal and repeating pre-recorded message:

The message and/or signal cycle will continue after the ‘Press-To-Talk’ Key is released. The cycle can be stopped by pressing the ‘Press-To-Talk’ Key a second time.

If this is done during the attention signal, the call stops immediately.

If the message is playing, the call will stop at the end of the message.

■Call with alarm signal:

The alarm signal will continue after release of the ‘Press-To-Talk’ Key.

It can be stopped by pressing the ‘Press- To-Talk’ Key a second time.

Busy and wait/talk LEDs (fig.6.1F and 6.1G)

Advise the operator whether a call may be activated, the status of the call, and whether any other calls are active.

The red ‘BUSY’ LED flashing means that another call is in progress.

The red ‘BUSY’ LED illuminated constantly indicates that the call has been blocked by another call with a higher priority.

In its ‘WAIT’ state, the green LED flashes, indicating that the call is accepted, and the attention tone or pre-recorded message is being broadcast.

The green LED illuminates constantly (‘TALK’) when the tone or message finishes and the processor switches on the microphone for the call to proceed.

	A			B		C
						D
						E
						F
	F1	1	2	3
	F 2	4	5	6		G
	F 3	7	8	9
	F 4	1 -	0	#		H
					PHILIPS	PHIL IPS
L	K		J	I

Fig. 6.1 - Call Station

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