ASL INTERCOM PS 680 Руководство пользователя - Страница 4
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GENERAL DESCRIPTION PS 680
The PS 680 (19"/1RU) is designed to be a six
channel power supply in an ASL intercom system.
The unit is connected to the party lines with
standard microphone cables (2 wires + 1 shield)
Inside the unit are 2 switch mode power supply
modules, which are fully protected and can
together drive at least 20 Pro Series beltpacks or
10 Pro Series 2-ch speaker stations (or a
combination), operating at full power.
The Auxiliary Matrix:
On the rear panel are 2 inputs for external audio
signals, so-called 'AUX' signals. Each AUX signal
may be injected to each of the 6 intercom
channels, with for each channel a volume control
for each AUX signal. With the master volume
control knobs the overall level of each AUX signal
to the intercom channels may be adjusted. Each
AUX input may be set to either line or mic level.
If mic level is selected, +30V phantom power is
available at the referring AUX input connector.
3.0
MECHANICAL INSTALLATION
A vertical rack space of 1U (1.75"/ 44,5 mm) is
required for the PS 680. It is not necessary to
provide rear support by extra bracing or shelving.
Adequate ventilation must be provided by
allowing sufficient space around the sides and
rear of the unit to ensure free circulation of air.
4.0
MAINS POWER
WARNING: This appliance must be earthed
The PS 680 may be connected to a mains power
outlet of 100 - 240 Volts, 50 – 60 Hz, 150 watts.
The outlet should have a clean earth. Avoid using
mains outlets which also power dimmer controlled
lighting equipment. Fuse (all voltages): T 1250
The wires in the mains lead are color coded in
accordance with the following code:
Green-and-yellow:
Earth / safety ground
Blue:
Neutral
Brown:
Live
In case the colors of the wires in the mains lead
do not correspond with the markings identifying
the terminals in your plug, proceed as follows:
•
The wire which is colored green-and-
yellow must be connected to the terminal
in the plug which is marked 'E', or by the
earth symbol or colored green.
•
The wire which is colored blue must be
connected to the terminal which is marked
with the letter 'N' or colored black.
PAGE 4
User Manual PS 680 / October 2013 © ASL Intercom BV
Fully electronic switching allows for a Mic Mute
and a Buzzer Mute function:
•
By pushing the "All Mics Off' button the
microphones of the stations connected to
the PS 680 are muted. At each user
station the microphone may be switched
again by pushing a TALK button.
•
By pushing the 'All buzzers Off' button all
buzzers of the stations connected to the
PS 680 are muted. To abolish the 'all
buzzers off' status of all these stations,
this button has to be pushed again.
Remote Mute Control:
The Mic Mute and the Buzzer Mute push buttons
on the PS 680 allow for sending these mute
signals to all channels simultaneously.
In case it is required that these signals can also
be sent to each channel separately, an external
switch box is needed which can be connected to
a D-25 connector on the rear panel.
Forced cooling is not required.
The power supply regulator is mounted on the
rear of the unit. After a period of time it will feel
hot to the touch. This is quite normal, and should
be no cause for alarm.
•
The wire which is colored brown must be
connected to the terminal which is marked
with the letter 'L' or colored red.
Safety Earth
For personal safety and proper operation of the
PS 680 and its connected stations, the green-
and-yellow wire of the mains cord must always be
connected to the electrical installation safety earth
or ground. This wire is internally connected to all
exposed metal surfaces of the PS 680. Any rack
framework into which this unit is mounted should
be connected to the same grounding circuit.
Powering Up Procedure
•
Make sure that the mains switch is OFF.
•
Connect the power cord to the rear panel.
•
Plug the other end of the power cord into a
properly grounded
•
Turn on the power with the red button.
The red overload LED lights up for about 3
seconds and then extinguishes. Now the
green power LED is lit, indicating the PS
680 is active
mains outlet.