Emergency Trigger Inputs; Mains Power; Battery; Message Supervision - Bosch Plena Operating Manual

80 en | Configuration
6.2.5

Emergency trigger inputs

If supervision is enabled and input supervision is switched on (see section Supervision, page
78), the system can supervise the emergency trigger inputs. For each emergency trigger input,
supervision can be switched on and off with the configuration software.
Notice!
See the Configuration Software Manual for more information about the configuration
software.
6.2.6

Mains power

If supervision is enabled and mains power supervision is switched on (see section Supervision,
page 78), the availability of the mains power is supervised.
6.2.7

Battery

If supervision is enabled and battery supervision is switched on (see section Supervision, page
78), the availability of the back-up power is supervised.
6.2.8

Message supervision

If supervision is enabled and message supervision is switched on (see section Supervision,
page 78), the internal message manager of the voice alarm controller is supervised. This
message supervision consists of supervision of the wave player using a check‑sum and
supervision of the audio path using a pilot‑tone.
6.2.9

Emergency microphone

If supervision is enabled and emergency microphone supervision is switched on (see section
Supervision, page 78), the audio path and the PTT switch of the emergency microphone are
monitored from the capsule to the connection with the voice alarm controller.
6.2.10

Line supervision

If supervision is enabled and line supervision (see section Supervision, page 78) is switched
on, all loudspeaker lines are supervised. Line supervision consists of:
–
–
Impedance supervision
If line supervision is switched on, the voice alarm controller measures the impedance of all
loudspeaker lines once every 90 seconds (default value). The reference values for impedance
supervision are stored in the voice alarm controller during the system calibration (see section
Calibration, page 87). If a difference of > 15% (default value) is detected between the
measured line impedance and its reference value, the line is considered faulty. The default
values can be changed with the configuration software.
Notice!
A small click can be heard at the start and end of an impedance measurement. If the click is
unacceptable, then end of line supervision with EOL can be considered instead of impedance
supervision.
Notice!
See the Configuration Software Manual for more information about the configuration
software.
2013.07 | V2.0 |
Impedance supervision.
Short‑to‑ground supervision.
Installation and Operation manual
Plena
Bosch Security Systems B.V.