Rear Panel Connections
Amplifier and Speaker connections See Appendix C
♦Eight individual input/output speakon connectors are located on the rear
panel.
♦Connections from the amplifier output are connected to terminals marked 1+
and 1-respectively.
♦Connections to loudspeaker circuits monitoring low impedance only connect
1+ and 1-.
For small 100V line circuits ( max of 8 speakers ) 1+ and 1-are used as the
signal send and 2+ used for a third wire ‘End of Line’ return.
For larger 100V line circuits, or where complete rings are used, the ‘End of Line’
return is connected to 2+ and 2-.
Event input See Appendix D
Four opto-isolated inputs for connection to external sources. Typically used to
monitor DSP processor or UPS status.
Common Fault See Appendix E
A change over relay provides a common fault output that can be configured to
provide a change in status for any fault.
PowerSupply See Appendix E
A 230V 50Hz mains supply socket. The mains fuse ( T500mA 20mm) is mounted
within this socket. The fuse carrier also contains a spare fuse.
A 24V DC battery backup input is also provided. The software utility allows
status monitoring of both power supplies.
Fibre Connectors See Appendix F
Twin ( primary & secondary ) ST fibre connectors for incoming and outgoing fibre
connections to other hardware in the system. The software utility allows either
single or dual fibre operation with states of system verified and reported.
