Bosch Appliances 3.5 Audio outputs, 13: Configure power amplifier, step, Delay, GND Supervision

Praesideo 3.5 Installation and User Instructions 9 System Configuration

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43.3.4 Audio outputs

taken over from the main amplifier that this spare amplifier replaces when it becomes active. The output configuration of a spare amplifier is only valid when it is in spare state.

When the spare amplifier takes over a main amplifier, the configuration of the main amplifier is copied. Line/Lsp Supervision can be used to supervise the interconnection between the spare amplifier and the connected main amplifiers.

If the connected main amplifiers use Single Line/Lsp Supervision, then the spare amplifier must not use Multiple Line/Lsp Supervision, otherwise a conflict will arise between both supervision slave boards when the spare amplifiers takes over the from the main amplifier. If the connected main amplifiers use the Multiple Line/Lsp Supervision, then the spare amplifier can also use Multiple Line/Lsp Supervision.

figure 43.13: Configure power amplifier, step 5

Power amplifiers that are configured as spare amplifiers do not have the Delay (distance) setting. This setting is

table 43.9: Audio outputs configuration

Item	Value	Description
Output		Unique name for the audio output. The output can be
		enabled and disabled using the checkbox.
Delay	0 to 95108 ms (PRS-1P500)	Sets the loudspeaker alignment time, also presented
	0 to 47554 ms (PRS-2P250)	as distance in meters and feet.
	0 to 23777 ms (PRS-4P125)
	0 to 1479 ms (LBB4428/00)
Amplifier supervision/	On, Off	Switches the pilot tone to on (On,) and off (Off). The
Pilot tone		pilot tone is used to supervise the amplifier channel for
		failures and for supervision of the loudspeaker line and
		loudspeakers.
		If set to On, the pilot tone enables supervision and an
		internal calibration keeps the pilot tone at an optimum
		level. If the load on the line changes by the addition or
		removal of loudspeakers, the pilot tone stays at the
		optimum level.
GND Supervision	On, Off	Switches ground supervision of the loudspeaker line
		on (On) and off (Off).
Line/LSP Supervision	None	Sets the type of line or loudspeaker supervision.
	PRS-SVSET (Single)
	PRS-SVCO (Multiple)
Configure supervision		Opens a screen to configure LBB4441 and LBB4443
devices		supervision devices (see section 43.3.5).

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