Sennheiser SZI 1015 Dimensions

SZI 1015

Features

2-Watt radiator for the carrier frequencies 2.3 and 2.8 MHz

Maximum coverage area of 400 m2, automatic

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

additional radiators

Wide range of mounting accessories

Delivery includes: SZI 1015 radiator

General Description

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 Data

IR diodes................................................................................72

Average radiating power ............................................... 2 W

Max. coverage area.................................................... 400 m2

Carrier frequency range ............................30 kHz – 6 MHz

RF input ......................................50 mV – 3 V, approx. 5 kΩ

Inputs/outputs.......................... BNC sockets/barrier strip

Threshold voltage for

automatic on/off function ........................................50 mV

Operating voltage............................................ 25 – 30 V DC

(via NT 1015 or SI 1015)

Current consumption

– operation........................................................ 0.7 A at 25 V

– stand-by.......................................................... max. 60 mA

Dimensions............................................ 250 x 100 x 80 mm

Weight ..............................................................approx. 1.3 kg

Recommended Accessories

Mains unit

NT 1015-EU European version Cat. No. 004560

NZT 1015 -120USA version Cat. No. 004561

BNC-BNC co-axial cable

GZA 1019 A 1 (1 m) Cat. No. 002324

GZA 1019 A 5 (5 m) Cat. No. 002325

GZA 1019 A 10 (10 m) Cat. No. 002326

GZV 1019 A BNC coupler Cat. No. 002368

GZG 1029 swivel joint Cat. No. 003226

GZP 10 mounting plate Cat. No. 003139

MZT 100 anti-vibration table stand Cat. No. 001883

Dimensions of the SZI 1015

100 mm

250 mm

80 mm

IR Audio Transmission Technology | Modulators/Radiators Cat. No. 004394

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 m2in

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 Ωterminating 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 switch

3 RF output (BNC)

4 Thread for mounting

5 RF input terminals

6 DC input terminals

7 DC output terminals

8 RF output terminals

1 2 3 4 5 6 7 8

50 Ω

Creating RF chains

IR Audio Transmission Technology | Modulators/Radiators

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