UNIELECTRONIC 2000 Series, Инструкция по установке и эксплуатации

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13
Telephone Connection
This input is for emergency announcements/signals. Input level can be set by level control on
the rear panel. The TEL input has the highest priority and will override all other inputs.
Aux Connection
The equipment provides an auxiliary input which may be used for connecting other signal
sources such as a Radio Tuner, CD or Cassette player. Turn the volume control clockwise to
increase the volume or anticlockwise to reduce the volume.
The Aux input sockets are standard RCA phono, two sockets are supplied and these are linked
together internally, this allows stereo signal sources to be used without the need to obtain a
special lead, however you may wish to check with the manufacturer of the signal source to
ensure that no damage will result if the left and right output channels are put in parallel.
RCA Phono plug connections
Line Output Connection
This equipment provides two booster output sockets which can be used to drive a booster
amplifier in situations where more power is required. Connection is via RCA phono plugs.
(See above)
Loudspeaker Connection
This equipment provides four different types of loudspeaker output, these are 100V ,70V 25V
line and low impedance, you can only use one of these output at any one time, any attempt to
use two or more of these may result in damage to the amplifier.
100V Line
These loudspeakers are most commonly used in the Europe for PA distribution. When the
amplifier is at full output 100V RMS will be present at the output terminals. Only use 100V line
loudspeakers with this output. All loudspeakers are wired in parallel and the sum of the power
tapping of each loudspeaker must not exceed the rated output of the amplifier, Ideally, due to
the nature of loudspeaker and transformer impedance’s. it is advisable not to load the amplifier
to greater than 70% of its rated output when using music sources.
70V / 25V Line
This system is common in the USA, it operates on exactly the same principals as 100V line
except that at rated output the amplifier will have 70V RMS or 25V RMS on its output terminals.
Low Impedance (8
Ω
)
This output allows connection of standard low impedance loudspeakers, the minimum load
impedance must be 8
Ω
, when two or more loudspeakers are use ensure that they are wired in
such a way that the load impedance is between 8
Ω
and 16
Ω
.
Sleeve- Screen
Pin- Signal