The following operations can be done when using the amplifier hardware in either mode or
operation:
–Activate the active override audio input function, page 38.
–Activate the amplifier auto standby, page 38.
Activate the active override audio input function
The active audio override function is used when you want to temporarily override all existing
configurations on all amplifier outputs, with a signal supplied by the override audio input.
Link/Act 100Mbps
Network
Override
Sensor +
+12V DC
Sensor -
Bridge 3+4
Input 3 Sens
Input 4 Sens
Bridge 1+2
Input 1 Sens
Input 2 Sens
Power
Input 1 Input 2 Input 3 Input 4
Input 1 Input 2 Input 3 Input 4
Amp Link Input
Link 1 Link 2 Link 3 Link 4
Output 1
Output 3 Output 4
Output 2
0 4Ω 8Ω 70V 100V
0 4Ω 8Ω 70V 100V
0 4Ω 8Ω 70V 100V
0 4Ω 8Ω 70V 100V
0V DC
Active
1/2 3 4
7 8 9 111012(4x) 13 14
5(4x) 6(4x)
1. Trigger the active audio override contact closure on the amplifier rear panel (10) via the
phoenix connection labelled “Active”:
– The override input signal now has a higher priority than all the other input sources,
and is active immediately into all channels.
2. By opening the contact again, the override input signal stops:
– The unit will restore and return to its prior configuration immediately.
Activate the amplifier auto standby
The amplifier auto standby function is used when you want to switch the amplifier to standby
mode. Standby mode activates to save power, which reduces running costs and extends the
lifetime of the amplifier. You can set the length of time that there is no activity in a zone using
the amplifier DSP. The timeout can be as fast as 1 minute or as long as 4 hours (Factory
preset is 60 min.).
1. Once a movement sensor has been correctly connected and powered (8); any activity that
is detected by sensor, resets the standby timeout period.
2. When the timeout has been reached, the amplifier will switch into a highly efficient power
saving mode.
– During standby, if activity is detected via the sensor, or an Active/Alert/EVAC contact
closure is engaged; the amplifier “wakes up” and restore and return to its prior
configuration immediately.
Notice!
The recommended sensor to be used, and can be powered by the amplifier, is the Bosch PIR
range of detectors. Refer to www.boschsecurity.com.
Operate the amplifier with the PC GUI
Operating and configuration of the DSP features can only be used via the amplifier PC GUI.
Refer to Multi Channel DSP Amplifier PC GUI, page 28. Operation instructions are available
within help of the PC GUI.
8.4.1
8.4.2
8.4.3
38 en | Operation PLENA matrix
2013-06 | V1.0 | Operation manual Bosch Security Systems B.V.