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Bosch Security Systems | 2011-02
Praesideo 3.5 | Installation and User Instructions | 9 | System Configuration en | 388
47.3.3 Press-to-talk (PTT)
Using the PTT (Press-to-talk) action, a call with a
predefined priority based on a call macro can be started
in one or more predefined zones or zone groups. When
the activator of a PTT action is released, the call is
stopped after completion of the running phase of the
call. See figure 47.10 for an overview of the Action
programming page for a PTT key. Configuring a PTT
action is similar to configuring a Call activation key action
(see section 47.3.4).
The PTT keys of call stations and call station keypads
are linked to the status LEDs (see section 15.3 and
18.2.4). Only one PTT key can be active at the same
time.
47.3.4 Call activation key
Using the Call activation key action, a call with a
predefined priority based on a call macro can be started
in one or more predefined zones or zone groups. It is
also possible to activate a predefined control output.
When the activator of a Call activation key action is
released, the call is aborted. See figure 47.11 for an
overview of the Action programming page for a Call
activation key.
If more than one action (up to a maximum of 5) is
configured for a Call activation key, see section 43.2.5,
then also multiple sets of Call macro, Priority and Zones
can be configured here.
• Action type - Sets the type of action.
• Call macro - Assigns a call macro to the key or
control input.
• Priority - Sets the priority of the call. The ranges of
priorities offered depends on the type of call station
(normal: 32 to 223, emergency: 32 to 255). When
the priority of the Call activation key action must be
the same as the priority of the call macro, set Priority
to <Default>.
• Available outputs - Shows the available zones,
zone groups and control outputs. Use the dropdown
list to choose the type of outputs that are shown.
• Add/Remove buttons - Using the > and <
buttons, selected outputs can be added to or
removed from Assigned outputs.
• Assigned outputs - Shows the outputs that have
been assigned to the key or control input.
figure 47.10: PTT (Press-to-talk) key
Note
This action can also be assigned to control
inputs.
figure 47.11: Call activation key
Note
If the system contains call stackers, use the
action type Toggle with abort on repress or
Momentary with abort on repress, since calls are
automatically deleted from the call stackers
when they are aborted immediately.