General

The transponder SZT 1011 is a mains-powered light-impulse amplifier designed to increase the effective range of the infrared transmitter SKI1 011. It is used in those cases where the radiated power of the SKI1 011 is not sufficient for illuminating larger rooms with infrared light. The transponder works as an infrared receiving and transmitting station: The infrared signal emitted by the SKI1 011 is picked up by an array of

receiving diodes, amplified and immediately transmitted further. The SZT 1011 is able to illuminate rooms with a floar area of up to 80 -m2.For

larger rooms a correspondingly larger number oftransponders is required. The transponder is fitted with a squelch to prevent transmission from being disturbed by hissing noise. The On/Off indicatar is a red LED which lights up whenever the transmitter is turned oll or the squelch has

switched. The transponder can be mounted either on walls or on floor stands litted with a !s"-thread (see lig.).

Location and mounting 0'the transponder

The ideal conditions for optimal illumination of a given room are as folIows:

1. The maximum ceilin~ height must not exceed 3.5 m.

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2. The ceiling itself must form a flat, level surface.

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3.The walls may not be covered or hung with light-absorbing material or objects.

The transponder should, if possible, be set up on the window side of the room in order to prevent a large proportion of the light power from escaping outside. The emission of the infrared light from the transponder should not be obstructed by curtains or other objects.

Example

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11111

Operation

After inserting the plug into the mains socket, the transponder is now ready to function. The unit can only be switched off by removing the plug from the mains. However, this is only necessary if the transponder is to remain idle for a Ionger period oftime (e. g. during school holidays). When plugged-in, the transponder is put into operation whenever the transmitter is switched on. Switching the transmitter off, however, automatically puts the transponder on "Stand-by".

In the "Stand-by" condition, the transponder uses only approx. 3.5 VA.

Please note

The transponder can be powered from either 220 V or 110 V mains circuits. On leaving the factory it is ready for 220 V-operation. For the conversion to 110 V-operation it is necessary to remove the plug from the mains and to change certain internal sold er bridges.

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Operation with 1 transponder

Operation with two transponders

Depending on whatever happens to be better, the transponder can be mounted either on to a floar stand fitted with a %"-thread or on a wall in

the vicinity of a mains socket.

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Radiatedpower

Number ottransmitting diodes

Size ot room illuminated ..

Numberot receivingdiodes

Supply voltage

Powerconsumption

Max.pulse repetition trequency Transmissionimpulse width Dimensions in mm including

covers tortransmittingand receivingdiodes

Weight

Colour

SZT 1011

> 2500 mW

(impulse light power) 35

,max. 80 m2 8

,220V/110V + 20% -15%

change ot internal solder bridge) "Stand-By": approx, 3,5 VA. Operation: max, approx, 10VA

.80 kHz:t 10 %

.'1~s:t 10%

140 x 100 x 53

approx. 1000 9

. black

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