Sennheiser 1015-T User Manual download pdf (Page 21)

4 Infra-Red Technology

Infra-Red Transmission

The SZI 1015-T is a powerful infra-red radiator with integrated modulator. Within a cordless IR

transmission system, it transforms the electrical signal of the audio source into invisible infra-red

light and radiates it into the room. In contrast to radio transmission systems, infra-red transmission

is restricted to the room, therefore, other systems can be used in neighbouring rooms without any

risk of interference.

 The SZI 1015-T modulator/radiator is switched on by the audio signal. Please use the balanced

XLR-3 input socket for connecting the SZI 1015-T to the audio source.

To connect additional SZI 1015 radiators, use 50 Ω RG 58 co-axial cables with BNC connectors.

Alternatively, you can also use cables without connectors with the barrier strip (RF output terminal).

Wideband

Wideband transmission systems are used for transmitting high-quality audio.

Areas of Application

 Any application which requires quality audio transmission, for example systems for the hard-

of-hearing in churches and theatres.

Propagation of Infra-Red Light

The propagation of the IR light emitted by the SZI 1015-T modulator/radiator is comparable to

that of normal daylight or artificial (lamp) light. Therefore, the infra-red light is subject to similar

conditions when it falls onto different surfaces and materials:

IR light

IR light IR light

Reflection

Reflection Reflection

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Sennheiser 1015-T User Manual Page 21