ASL INTERCOM PS 289, Руководство пользователя

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User manual PS 289 / Issue 1 © 2007 ASL Intercom, Utrecht, The Netherlands
2.0 GENERAL DESCRIPTION
The PS 288 is designed to be a dual channel power
supply in an ASL intercom system and can be used in
portable as well as fixed applications. It incorporates an
adjustable auxiliary program signal input and uses only 1U
of 19” rack space.
The unit is very versatile and ideal for use in applications
where standard microphone cable is available and ease of
setup is of paramount importance.
The intercom line power supply is fully protected and can
drive at least 20 beltpacks or 10 speaker stations, or a
combination, operating at full power. For each channel separately, the intercom line impedance
circuitry is installed.
Fully electronic switching increases reliability and allows
for remote Mic Mute facility.
All microphones of the stations connected to the PS 280
can be muted by pushing a single front panel button.
An Aux input at the rear panel, allows injecting external
audio signals of line level into the intercom audio line.
.
3.0 UNPACKING
The shipping carton contains the parts listed below
*
The PS 289
* Mains power cable
* Spare fuses
* User manual
If any are missing, contact your dealer.
With the PS 289 will be a small packet of spare fuses.
Please keep them in a safe place.
There is also one spare fuse included in the mains inlet.
ASL has taken great care to ensure that this product
reaches you in flawless condition.
After unpacking the unit, please inspect for any physical
damage to the unit, and retain the shipping carton and
relevant packing materials for use should the unit need
returning.
If any damage has occurred, please notify your dealer
immediately so that a written claim can be initiated.
Please also refer to the guarantee section of this manual.
4.0 MECHANICAL INSTALLATION
A vertical rack space of 1U (1.75”, 44mm) is required for
the PS 289. 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. Forced cooling is not
required.
The power unit is mounted on the bottom of the unit, and
after a period of time it will feel hot to the touch on top
and bottom. This is normal, and should be no cause for
alarm