User manual

User Manual PS 680 / Issue 1 © 1999 ASL Intercom, Utrecht, Holland.
1
WARNING
This appliance must be earthed
1.0 GENERAL DESCRIPTION
The PS 680 is designed to be a six channel power supply For each channel separately, the intercom line impedance
in an ASL intercom system and can be used in portable circuitry is installed.
as well as fixed applications. It incorporates two
adjustable auxiliary program signal inputs with a auxiliary Fully electronic switching increases reliability and allows
matrix and uses only 1U of 19" rack space. for remote Mic Mute facility.
The unit is very versatile and ideal for use in applications can be muted by pushing a single front panel button.
where standard microphone cable is available and ease of
setup is of paramount importance. The Aux input at the rear panel, allows injecting external
The intercom line power supply is fully protected and can line. When 'mic level' is selected, +30V phantom power is
drive at least 40 beltpacks or 20 speaker stations, or a available at the Aux input connector.
combination, operating at full power.
All microphones of the stations connected to the PS 680
audio signals of line or mic level into the intercom audio
2.0 UNPACKING
The shipping carton contains the parts listed below. ASL has taken great care to ensure that this product
* The PS 680 reaches you in flawless condition.
* Mains power cable After unpacking the unit please inspect for any physical
* Spare fuses damage to the unit, and retain the shipping carton and
* User manual relevant packing materials for use should the unit need
If any are missing contact your dealer.
With the PS 680 will be a small packet of spare fuses. immediately so that a written claim can be initiated.
Please keep them in a safe place. Please also refer to the guarantee section of this manual.
There is also one spare fuse included in the mains inlet.
returning.
If any damage has occured, please notify your dealer
3.0 MECHANICAL INSTALLATION
A vertical rack space of 1U (1.75", 44mm) is required for The power supply regulators are mounted inside the unit,
the PS 680. It is not necessary to provide rear support by and after a period of time it will feel warm to the touch.
extra bracing or shelving. This is quite normal, and should be no cause for alarm.
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.
4.0 MAINS POWER
The PS 680 may be connected to the mains power outlet
to which other audio equipment is connected. The outlet
should have a clean earth. Avoid using mains power
outlets which also power dimmer controlled lighting
equipment.
Before connecting the unit to its AC power source, check
that the mains voltage, the unit accepts any AC voltage
from 90 - 240 Volts, 50 - 60 Hz.
4.0 MAINS POWER continued
IMPORTANT
The wires in this mains lead are colour coded in