Contacta IL-EL42-PB Installation Manual - Page 5

Browse online or download pdf Installation Manual for Intercom System Contacta IL-EL42-PB. Contacta IL-EL42-PB 12 pages. Hearing loop

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Audio Input Signal

•

Standard recommended input:

Computer sound card signal with typical 1 volt RMS.

•

Typical levels for larger speakers can be accepted by removing the

two jumpers on header HDR1.

•

100V 'Line' can be accepted in J2.

LEDs

POWER - Constantly lit red to indicate the device is powered on.

ACTIVE - Illuminates green when a loop is being driven correctly.

OVERDRIVE - Becomes increasingly steady red as an audio signal in-

creases. If it is continuously red, the drive level of the loop is too high

and audio may be distorted.

If the ACTIVE LED is not illuminated and the OVERDRIVE LED is con-

stantly illuminated, the induction loop is disconnected or open-circuit.

Remedial action must be taken.