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34

35

Green LED,

operation

red LED, mains supply indicator

and warning light for reduced

 IR radiating-power

 (malfunction indicator)

MALE TWO CHAINS!

                                     RISK OF CANCELLATION!

CANCELLATION WITH

The length of the cable between two neighbouring radiators should not

GREATER CABLE LENGTHS

exceed 75 m, otherwise signal cancellation can occur when the radiation
is  not  in  phase!  Do  not  forget  the  terminating  impedance!

The SZI 1029 high power radiator is provided with 12 independent output
stages, each stage amplifies the received signal for a power block of 12
infra-red LEDs. The SZI 1029-10 models with 24 independent output
stages have double the power.

MALFUNCTION INDICATOR

If one power block fails, transmission quality is not considerably affected.
Only if more than one third of all the blocks fail to operate, the red LED
will light up in addition to the green one, thus indicating that the device
will have to be repaired.

OPERATION INDICATOR

The indicators work as follows:
Red Indicator Only: The
radiator is connected to the
mains but there is no IR signal
present. Green Indicator Only:
IR signal is present, the
radiator is working normally.
Red & Green Indicator:FAULT

CONDITION!

 30 % or more of

the diodes are not working and
the radiator should be returned
to your local Sennheiser agent
for repair.

DISTANCE BETWEEN

Please  observe  a  minimum  distance  of  2  m  between  radiators  and

RADIATORS AND RECEIVERS

receivers as otherwise the receiver input stage could be overloaded. This
would result in a very poor transmission quality.

INSTALLATION

If possible the radiators should be installed in such a way that they are
directly orientated towards the infra-red receivers. For best reception the
radiators should be installed as high as possible with a slight downward
inclination. For uniform irradiation of a given room the radiators should
be installed decentralised, usually in the corners of the room.

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Содержание SZI 1029-10-120

Страница 1: ...wer during multi channel operation 30 Computing the radiating power 31 Propagation of infra red light 31 Putting the radiator into operation 32 Mains connection 32 Connecting an IR radiator 33 Single Multi channel operation 33 Cancellation with greater cable lengths 34 Malfunction indicator 35 Operation indicator 35 Distance between radiators and receivers 35 Installation 35 Suitable modulators 36...

Страница 2: ...fra red radia ting power 5 W single channel MONO or multi channel MUlTI operation BNC output socket for connection of additional SZI 1029 or SZI 1015 radiators Black housing Supplied with a European mains cable SZI 1029 EU W As SZI 1029 EU but white with unpainted aluminium housing SZI 1029 120 As SZI 1029 EU but supplied with a USA mains cable SZI 1029 UK As SZI 1029 EU but supplied with a UK mai...

Страница 3: ...malfunction indicator Selector switch for single channel MONO multi channel MULTI operation BNC infra red input socket BNC output socket for connecting further radiators Thread for mounting the radiator IEC mains connector 24 V DC input socket only with 1029 24 model CONNECTING SEVERAL RADIATORS WIDEBAND AND NARROW BAND TRANSMISSION SINGLE CHANNEL AND MULTI CHANNEL Starting with an infra red modul...

Страница 4: ... up to 32 mono channels with a slightly reduced audio frequency response They are ideal for multi channel interpretation systems and multilingual information systems AREAS OF APPLICATION P Conference and simultaneous interpretation systems P High quality cordless sound transmission in recording studios or for hi fi systems IMPACT OF CURTAINS Dark and heavy materials curtains carpets panellings and...

Страница 5: ... channel surface area in sq m x number of channels 1300 COMPUTING THE During single channel operation switch set to MONO every RADIATING POWER SZI 1029 radiator will supply an area of about 1000 sq m The SZI 1029 10 radiators are able to supply approximately double this area When switched to narrow band multi channel operation switch set to MULTI power output and thus irradiated area are reduced b...

Страница 6: ...onnected to one another using a BNC coupler GZV 1019 A IR output BNC for extension radiators For permanentlyinstalledsystems you should use commercially available 50 Ω coaxial cables such as RG 58 75 Ω cables can be used if 50 Ω cables are unavailable If you want to use several SZI 1029 radiators you have to connect them in series This is done by connecting the output BNC socket of the first radia...

Страница 7: ...een one thus indicating that the device will have to be repaired OPERATION INDICATOR The indicators work as follows Red Indicator Only The radiator is connected to the mains but there is no IR signal present Green Indicator Only IR signal is present the radiator is working normally Red Green Indicator FAULT CONDITION 30 or more of the diodes are not working and the radiator should be returned to y...

Страница 8: ...t receiver additionally RI 250 RI 150 RI 300 RI 500 HDI 302 HDI 380 MZT 14 Mounting bolt For mounting goosenecks and swivel joints with 3 4 threads to table tops GZP 10 Mounting plate For wall and ceiling mounting GZG 1029 Swivel joint For mounting and aligning the radiator used in combination with mounting plate GZP 10 mounting bolt MZT 14 or a stand Interchangeable thread 1 4 3 8 MZT 100 Table s...

Страница 9: ...happen that some technical alterations are made on the described products after these operating instructions have gone to press We apologise for any inconvenience TECHNICAL SPECIFICATIONS SZI 1029 SZI 1029 10 Number of radiator diodes 144 288 Approximate radiating power 5 W 10 W Wavelength of radiated infra red light approx 880 nm Carrier frequency range 30 kHz 6 MHz IR input 50 mV 3 V approx 5 kΩ...

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