ASL INTERCOM PS 278 Manual del usuario - Página 7

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6.0

REAR PANEL CONTROLS & CONNECTORS

15 A & B LINE connectors

These XLR-3 type connectors are for connecting the

remote-stations, via standard microphone cable.

There are two connectors for channel A and two

connectors for channel B.

Pin assignments :

1. 0 V / ground shield

2. +30 V power wire

3. audio wire

16 AUX INPUT connector

This XLR-3 type aux input is electronically balanced

and accepts audio levels between -18dBu to +22dBu

on line level, and -38dBu to +2dBu on mic level.

Pin assignments :

1. 0 V / ground

2. Signal +

3. Signal -

When mic level is selected, a +30Vdc phantom power

is supplied to pins 2 and 3.

17 FUSE

This fuse protects the PS 278 against severe internal

damage, in case of malfunction in the power section.

To remove the fuse the mains cord must be removed.

It is most important to place the correct fuse in the

holder :

mains voltage

220 - 240 VAC

100 - 120 VAC

Spare fuses will be found in the small packet supplied

with the unit.

fuse

T 315 mA

T 630 mA

18 MAINS INLET

IEC Mains connector. For correct wiring and operation

refer to section 4.0.

Before you plug in the mains voltage, check if:

The fuse is correct

The voltage is correct

WARNING