FEATURESMaximum coverage area of 400 m² �

Daisy-chaining BNC sockets �

5/8“ mounting thread �

(3/8“ and 1/2“ adaptors)

ARCHITECT’SSPECIFICATIONSThe infrared radiator shall be for use with companion modulators as part of a wireless IR assistive listening system or IR language transmission system. The radiator‘s maxi-mum coverage area shall be approximately 400 sq m (4305,56 sq ft). The radiator shall be switched on and off automatically by the modulator‘s RF carrier and shall be capable of operating on carrier frequencies ranging from 30 kHz – 6 MHz.The RF signal from the modulator shall be daisy-chainable via BNC sockets. A barrier strip with RF and DC input and outputs shall be connected in parallel.The radiator shall provide a 5/8“ thread and shall come complete with a 3/8“ and 1/2“ adaptor for easy mounting to various attachments.Output power shall be 2 W. The operating voltage shall be 25-30 V DC.The radiator dimensions shall be 250 x 100 x 80 mm (9.84“ x 3.94“ x 3.15“). Weight shall be 1.3 kg (2.9 lbs.). The radia-tor shall be the Sennheiser SZI 1015.

The SZI 1015 is a 2-Watt radiator with a coverage area of up to 400 m². The radiator is switched on and off automatically by the modulator’s RF carrier. The RF signal from the modulator can be daisy-chained via BNC sockets. A barrier strip with RF and DC inputs and outputs is connected in parallel. The radiator has a 5/8” thread and comes with a 3/8” and 1/2” adaptor, it can therefore easily be mounted to various attachments.

TECHNICAL DATACarrier frequency.....................................................30 kHz – 6 MHz Dimensions ...............................................................250 x 100 x 80 mmOutput power ...........................................................2 WMax coverage area..................................................approx. 400 m²Nominal deviation .................................................. ± 40 kHzOperating voltage (mains) ...................................25-30 V DCWeight .......................................................................1.3 kg

SZI 1015 Infrared radiator

RECOMMENDED ACCESSORIESPower supply NT 1015-EU Art. No. 04560Power supply NT 1015-120 Art. No. 04561

BNC cablesGZL 1019-A1 1 m Art. No. 002324GZL 1019-A5 5 m Art. No. 002325GZL 1019-A10 10 m Art. No. 002326

BNC coupler GZV 1019-A Art. No. 02368

DIMENSIONS

Sennheiser electronic GmbH & Co. KGAm Labor 1, 30900 Wedemark, Germanywww.sennheiser.com

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SZI 1015 Infrared radiator

SZI 1015

Featuresj 2-Watt radiator for the carrier frequencies 2.3 and 2.8 MHzj Maximum coverage area of 400 m2 (1313.33 sq ft), automatic

on/off function and RF output socket for daisy-chaining the signal to additional radiators

j Wide range of mounting accessoriesj Delivery includes: SZI 1015 radiator

General DescriptionThe SZI 1015 is a 2-Watt radiator with a coverage area of up to 400 m2 (1313.33 sq ft). The radiator is switched on and off automatically by the modulator’s RF carrier. The RF signal from the modulator can be daisy-chained via BNC sockets. A barrier strip with RF and DC inputs and outputs is connected in parallel. The radiator has a 5/8“ thread and comes with a 3/8“ and 1/2“ adaptor, it can therefore easily be mounted to various attachments.

Technical DataIR diodes ................................................................................72Average radiating power ............................................... 2 WMax. coverage area ........................400 m2 (1313.33 sq ft)Carrier frequency range ............................30 kHz – 6 MHzRF input ......................................... 50 mV – 3 V, appx. 5 kOInputs/outputs .......................... BNC sockets/barrier stripThreshold voltage forautomatic on/off function .........................................50 mVOperating voltage ............................................ 25 – 30 V DC (via NT 1015 or SI 1015)Current consumption– operation ........................................................ 0.7 A at 25 V– stand-by .......................................................... max. 60 mADimensions ............................................ 250 x 100 x 80 mm

(9.84˝ x 3.94˝ x 3.15˝)Weight .............................................. appx. 1.3 kg (2.87 lbs)

Recommended Accessoriesj Mains unit

NT 1015-EU European version Cat. No. 004560 NZT 1015 -120USA version Cat. No. 004561

j BNC-BNC co-axial cable GZA 1019 A 1 (1 m/3.28 ft) Cat. No. 002324 GZA 1019 A 5 (5 m/16.40 ft) Cat. No. 002325 GZA 1019 A 10 (10 m/32.81 ft) Cat. No. 002326

j GZV 1019 A BNC coupler Cat. No. 002368j GZG 1029 swivel joint Cat. No. 003226j GZP 10 mounting plate Cat. No. 003139j MZT 100 anti-vibration table stand Cat. No. 001883

Dimensions of the SZI 1015

Infrared Wireless Systems | Modulators/Radiators Cat. No. 004394

100

mm

(3.

94˝)

250 mm (9.84˝)

80 mm (3.15˝)

SZI 1015

Sockets and controls of the SZI 1015

With its compact size and various thread sizes (5/8“, 3/8“ and 1/2“), the SZI 1015 radiator makes for versatile mounting. It has a coverage area of up to 400 m2 in single-channel operation and can be switched between mono and multi-channel operation. Please note that in multi-channel mode, this maximum coverage area decreases proportionally with the number of channels transmitted.

The RF signal from the modulator is fed to the radiator via a BNC socket (1) and can be daisy-chained to other radiators via the BNC RF output (3). Alternatively, the modulator’s RF signal can also be fed to the barrier strip. Terminal 5 is the RF input and terminal 8 the RF output for daisy-chaining the signal to further radia-tors. When using an SI 1015 modulator, the SZI 1015 does not need to be connected directly to the mains via an NT 1015 mains unit, but can be supplied with the correct DC voltage via the SI 1015 modulator.

The necessary supply voltage is also available at the barrier strip, terminal 6 being the DC input and terminal 7 the DC output. For more information on how to connect the signal and supply cables between the modulator and the radiator please refer to the SI 1015 description. The SZI 1015 is fitted with an automatic on/off function: when it receives a carrier from the modulator, it switches on – and off again when the RF signal is no longer present. The switching threshold is 50 mV.

When setting up a radiator chain, you should bear in mind that the last radiator in an RF chain must be fitted with a 50 O terminating impedance in order to avoid standing waves. You should also keep in mind that signals can cancel out when cables are very long and coverage areas of radiators overlap. In order to avoid recep-tion problems, you should use both RF outputs of the modulator and set up two RF chains (see also Planning Theory).

1 RF input (BNC)2 Mono/multi switch3 RF output (BNC)4 Thread for mounting5 RF input terminals6 DC input terminals7 DC output terminals8 RF output terminals

50 O

50 O

Creating RF chains

Infrared Wireless Systems | Modulators/Radiators