Appendix A: Amplifier & Loudspeaker line options
Engl
ish
40
Option 2:
3 amplifier channels for 4 alarm zones, of which 2 amplifier channels are used for
individual alarm zones 1 & 2 and 1 amplifier channel is used for alarm zones/loudspeaker lines
3 & 4; including 1 backup amplifier channel.
Make sure the backup amplifier channel is configured in the same way as the zone amplifier
channels (either at 50 V or 100 V / 100 V + Transformer) and that the maximum output power
rating is at least the same of the zone amplfiier channel with the highest output power rating.
These options require specific wiring of the zone amplifier outputs to the right amplifier inputs
on the 4x4 cards. When connected in the right way the ECU unit will automatically detect how
the zone amplifiers are connected during a calibration run. It is not possible to link a zone
amplifier channel from one ECU unit to another.
Line output 1
Line output 2
Line output 3
Line output 4
Backup 1
Amp in 1
Amp in 2
Amp in 3
Amp in 4
Backup 1
AUX 1
Unit link out
eXentro ECU emergency control unit
1a
1b
2a
2b
3a
3b
4a
4b
Line input 1
Line input 2
Line input 3
Line input 4
Ext.signal in
Ext. signal contact
Alarm out signal
Alarm contact (NO)
Mains error
Ext. error
C
48
error
GPO contact (NO)
System fault contact (NO)
Error 1 contact (NO)
Error 2 contact (NO)
PSU fail contact (NO)
USB
Ethernet (opt.)
Emergency Panel Bus 1
Emergency Panel Bus 2
Unit link in
Option 2
