Axxent ISV 1090 Manuale d'uso - Pagina 4

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Second, operation modes:

The ISV1090 has been developed to drive not only

single perimeter or figure-of-eight and similar loops,

but, with additional units and in combination with a 90°

phase shifter module (PSM90) complex low spill-over

loops.

Therefore, the operation mode has to be selected by jumper connectors inside. Modes are ...

SINGLE

induction loop amplifier acting as

a stand-alone unit (Jumper setting

combinations A or B)

IMPORTANT!

In master/slave mode, ampli-

fication/gain settings of both

amplifiers should be identical.

The ISV1090 also may be connected with another one in parallel for more induction loops.

In this mode the Master settings should be used. All the inputs of the connected amplifiers may be mixed together.

Wiring diagram for the connection cable between two ISV1090, 3 pin 6.3 mm phone plug.

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ISV 1090 Universal Induction Loop Amplifier

MASTER

induction loop amplifer with another

unit as SLAVE and inserted 90° pha-

se shifter module into the master

unit (jumper setting combinations

C, D or E)

Standard perimeter wire loops stray the induction signal

outside their borders by far. Therefore, multi-segment

induction loops are required to reduce this effect. Typi-

cally, adjacent rooms such as conference rooms, mul-

tiplex cinemas, and similar require such. Low spill-over

loops require careful lay-out that can be performed

only by experienced consultants/audio contractors.

SLAVE

amplifier connected to the master

(jumper settings F or G)

User Manual