User Manual

24
It is possible to optimize the amplifier
signal setting an external unit ( so as un
equalizer processor, etc..) between the
two terminals .
For connections revert to the following fig.
9. 24 V DC POWER CONNECTORS
These two connectors allow the unit to be powered by direct current through an external power source such
as a generator or a 24 V DC battery.
If you opt for direct current powering, please insert a 20A fuse in the V DC supply line.
Note:
If continuous power is provided through a battery, be aware that the device cannot autonomously
recharge the battery.
10. Loudspeaker output line terminal
These Terminals are used for 4Ω, 25 V, 70 V and 100 V loudspeakers connection
Connect the speaker lines to the COM terminal and to the desired Impedence/constant voltage terminal
(100V, 70V, 100V / 4Ω). See paragraph 5.2
11. Loudspeaker ZONE output line terminal
Zone 1, 2, 3 and 4 (100V outputs ) output terminals
Connect the speaker lines to the COM terminal and 100V to the desired terminal ZONE
12. MOH OUTPUT 1W 8Ω
Music On Hold Output. monitor output of the INPUT 5 signal.
This output allows you to connect a speaker (monitor), driven from the unit internal 1W amplifier, reproducing
AUX IN signal. Output signal is set by INPUT 5 volume control (fig.1 rif.4), or by rear panel MOH LEVEL.
trimmer (fig. 2 ref. 13)
13. MOH LEVEL
MOH OUTPUT volume trimmer
14. MOH OUTPUT 600Ω
Music On Hold Output is monitor output at 0dB of the INPUT 5 signal
15. TEL INPUT
Set to receive a high level telephone central audio signal (600
) ( balanced or unbalance) with priority on all
signals. The signal level is set through TEL trimmer. For priority regulation, read MUTE SEN (point 6)
16. TEL LEVEL
Telephone - paging volume trimmer
17. GND Screw
When there is no grounding on the power socket, such screw allows grounding connection of the mechanical
unit parts .
Attention.
Grounding Screw connection must be done by qualified person.