Bosch Appliances 3.5 manual BGM Channels, Introduction, Overview, 14: Sparing, step

Praesideo 3.5 Installation and User Instructions 9 System Configuration

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4Double click the selected main amplifier or click the > button to assign the main amplifier to the spare amplifier. A screen similar to the one in figure 45.14 appears in the main frame of the web interface.

figure 45.14: Sparing, step 4

5Submit the changes. Note that the changes are not permanent until the configuration is saved (see section 40.4.4 and section 40.4.5).

audio outputs 5 to 8 and audio inputs 3 and 4 comprise another unit. In this case, cross-feeding the BGM channels will occupy a bus channel).

This allows for many local audio channels that will not be routed over the Praesideo network.

Note

When a zone or zone group is already connected to a BGM channel, do not connect another BGM channel to it. Connecting zones and zone groups to multiple BGM channels can cause inconsistencies in the configuration database when the system is switched on. In turn, these inconsistencies can result in unpredictable system behavior. The routing of BGM channels can be changed with call station keypads after the system has started up (see chapter 47).

45.5 BGM Channels

45.5.1 Introduction

At the BGM channels page, background music (BGM) channels can be built. A BGM channel refers to an audio input in the system. Optionally, default zones and or default zone groups can be connected to the channel. When the system is switched on, then the specified BGM is routed to the connected zones and zone groups. You can specify a routing limit to a BGM channel. If the the Limit routing checkbox is unticked, all available zones or zone groups can be made part of the default routing for the BGM channel. With Limit routing enabled, you can make a sub-set of available zones and zone groups and the BGM channel can not be routed outside this subset. This function can be used for routing of e.g. a licensed BGM channel to specific subscribers. In this case the default zones for this BGM channel at power on is again a sub-set of the specified routing limit. Also, zones and zone groups that are not part of the routing limit can not be added to the BGM channel selection via call station keys.

The maximum number of BGM channels is 28, but if a BGM channel uses an audio input on a certain unit, and all the zones within the routing limit are part of that particular unit only, none of the 28 system bus channels will be used for this BGM channel (with the following small exception for the LBB4428/00: audio outputs 1 to 4 and audio inputs 1 and 2 are considered a unit, just as

Note

Each BGM channel must have a unique audio input.

45.5.2 Overview

The BGM channels page (see figure 45.15) contains the following:

•Name - Name of the background music channel.

•Type - Select between zones and zone groups as available destinations.

•Available destinations - The left column lists the available zones and zone groups.

•Limit routing - Tick the checkbox to apply a routing limit to the selected BGM channel or get access to all destinations.

•Allowed destinations - The center column lists the zones and zone groups that are allowed to receive the BGM channel. This list is not visible if the Limit routing checkbox is unticked.

•Add/Remove buttons - Using the > and < buttons, selected outputs can be added to or removed from Allowed destinations and Assigned destinations.

•Assigned destinations - The right column lists the zones and zone groups that are assigned to the selected BGM channel at system startup.

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