ASL INTERCOM PS 285 Manuale d'uso - Pagina 5

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6.0

FRONT PANEL CONTROLS

over

load

PS 285

Power

Supply

Booster

Power

1 POWER ON/OFF switch

Mains power push button for switching ON and OFF

the internal power supply.

2 OVERLOAD LED

This LED illuminates if the internal power supply has

shut off line power due to overload.

If the internal power supply is overloaded (too many

user stations are connected or short-cicuit in the

interconnecting cables), it activates a circuit-breaker

which immediately shuts off line power. This circuit-

breaker resets automatically 3 seconds after the

overload situition is terminated, restoring line power

automatically.

During short-circuit, the overload LED extinguishes

very shortly every 3 seconds.

This overload LED also comes on every time you

switch on the main power.

Standby

CHANNEL A

CHANNEL B

3 ON LED

4 STANDBY LED

This LED illuminates if a partyline is connected to the

intercom input and the unit supplies power to the

output.

This LED illuminates when no line power is detected at

the input connector and no power is supplied to the

output connector.

Pro series

Intercom