Entry Delays - Bosch MPC-xxxx-B Operation Manual

Panel Controller
8.2

Entry delays

To prevent false alarms, it is possible to delay the transmission of the first alarm signal. The
transmission device to the fire department is not activated in this case. During the delay, the
message can be checked to ensure it is correct.
The FSP-5000-RPS programming software can be used to program various strategies for
avoiding false alarms. These strategies are principally used in fire detectors but can also be
assigned to any other detector, depending on how it is programmed.
The programmable alarm delays that can be shown in the panel controller display are
explained below.
Alarm verification
When the alarm message is acknowledged on the panel controller, a time to investigate is
started. During this time, the message in the place where the detector generating the alarm is
located must be checked to ensure it is correct. The duration of the time to investigate can be
freely programmed for every detector. See also Section 9 Fire alarm, page 44 and
Section 9.6 Triggering fire verification, page 46.
If it is determined during the test that the alarm is genuine, an alarm can either be triggered
manually or by activating a manual call point. The transmission device to the fire department
is activated.
Depending on the configuration, a pre-alarm is displayed for the following alarm delays:
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Bosch Sicherheitssysteme GmbH
Intermediate alarm storage
If a detector with intermediate alarm storage triggers an alarm, this is displayed as a pre-
alarm on the system. The transmission device to the fire department is not activated. The
detector generating the alarm is reset after the first signal.
The pre-alarm becomes the main alarm if the same detector generates an alarm signal
within a programmable time. The time until a main alarm is triggered is shown on the
display. The transmission devices and signaling devices are activated.
Dual-detector dependency
If a detector triggers an initial alarm within a dual-detector dependency, then this is
displayed on the system as a pre-alarm. The transmission device to the fire department is
not activated. The detector generating the alarm is reset after the first signal.
The pre-alarm becomes the main alarm if a second detector in the same logical zone
triggers an alarm. The transmission devices and signaling devices are activated.
Dual-zone dependency
If a detector triggers an initial alarm within a dual-zone dependency, then this is
displayed on the system as a pre-alarm. The transmission device to the fire department is
not activated. The detector generating the alarm is reset after the first signal.
The pre-alarm becomes the main alarm if a second detector in a different logical zone
triggers an alarm. The transmission devices and signaling devices are activated.
Operation guide
Alarm | en 39
F.01U.076.969 | 6.0 | 2010.04