ASL INTERCOM PS 278 Kullanıcı Kılavuzu - Sayfa 3

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4.0

MAINS POWER

The PS 278 may be connected to the mains power outlet

to which other audio equipment is connected. The outlet

should have a clean safety earth. Avoid using mains

power outlets which also power dimmer controlled lighting

equipment.

Before connecting the unit to its AC power source, check if

the mains voltage setting is set in accordance with your

local mains voltage. The voltage setting is indicated by a

label on the rear panel.

If a change is necessary, the internal mains transformer

wiring will need to be reconnected as shown in section 4.3

Mains Power settings.

Remember that the AC mains fuse will need to be

changed for one of the correct rating as indicated.

The power cord supplied with this unit carries the following

information label:

This appliance must be earthed

4.1

SAFETY EARTHING

The green-and-yellow wire of the mains cord must always

be connected to the electrical installation safety earth or

ground. It is essential for personal safety as well for proper

operation of the PS 278 and the other connected stations.

This wire is internally connected to all exposed metal

surfaces and any rack framework into which this unit might

be mounted is assumed to be connected to the same

grounding circuit.

The PS 278 employs professionally designed audio input

and output circuits which do not require the disconnection

of any safety earth for the avoidance of hum loops.

WARNING

IMPORTANT

The wires in this mains lead are colour coded in

accordance with the following code:

green and yellow Earth / safety ground

blue

Neutral

brown

Live

As the colours of the wires in the mains lead may not

correspond with the coloured markings identifying the

terminals in your plug, proceed as follows:

The wire which is coloured green-and-yellow must be

connected to the terminal in the plug which is marked

with the letter "E", or by the earth symbol which is

coloured green.

The wire which is coloured blue must be connected to

the terminal which is marked with the letter "N" or

coloured black.

The wire which is coloured brown must be connected

to the terminal which is marked with the letter "L" or

coloured red.

Those units that are supplied to the North American

market will have an integral moulded 3 pin connector

which is provided to satisfy required local standards.