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Infra-red Radiators | 23

Infra-red Radiators

LBB 451x/00 Infra-red Radiators

Features

X LBB 4511/00 covers up to 1000 m

(one carrier, 4

standard quality channels)

X LBB 4512/00 covers up to 2000 m

(one carrier, 4

standard quality channels)

X Automatic gain control ensures the IREDs (infra-red

emitting diodes) function with maximum efficiency

X Power output selection for efficiency and economy

Introduction

These radiators are used to distribute infra-red signals

throughout the conference venue, enabling delegates to

listen to the proceedings by means of personal receivers.

Functions

•

Universal mains power facility allows use worldwide

• No fan - cooled by convection - resulting in quieter

operation and less moving parts to wear out

• LED indicators for radiator status checking

• Communication between radiator and transmitter for

easy checking by the operator

• Automatically switches on when transmitter is switched

on and vice versa

• Automatic cable equalization ensures maximum trans-

mission efficiency with different quality of cables

• Automatic cable termination simplifies installation

• Temperature protection circuitry automatically switches

radiator from full- to half- power if the temperature

becomes too high

• Adjustable radiator angle ensures maximum coverage

• IREDs protected by a cover plate, making the units easy

to maintain and clean

• Attractive and stylish design

Controls and Indicators

• Two yellow LEDs: one on each radiator panel to indicate

that this panel is switched on and is receiving carrier

waves from the transmitter

• Two red LEDs: one on each radiator panel to indicate that

this panel is in standby mode

• Red and yellow LEDs simultaneously illuminated to

indicate the radiator panel is malfunctioning

• Red LED flashing and yellow LEDs to indicate the radiator

panel is in temperature protection mode

• Power reduction switch to reduce the output of the

radiator to half-power

• Two delay compensation switches to compensate for

differences in cable lengths between transmitter and

radiators

Interconnection

• Male Euro socket for mains connection

• HF input and output connectors (2 x BNC) for connection

to transmitter and loop-through to other radiators

Parts Included

Technical Specifications

Quantity Component

1 LBB 451x/00 Infra-red Radiator

1Mains cable

1 Bracket for mounting unit on ceiling

2 Plates for mounting unit on floor stand

Electrical

Mains voltage 90 to 260 V, 50 to 60 Hz

Power consumption

LBB 4511, operating

LBB 4511, standby

LBB 4512, operating

LBB 4512, standby

100 W

180 W

10 W

Number of IREDs

LBB 4511

LBB 4512

260

480

Total optical peak intensity

LBB 4511

LBB 4512

9W/sr

18 W/sr

Angle of half intensity ± 22°

HF input nominal 1 Vpp, minimum 10 mVpp

Mechanical

Mounting Suspension bracket for direct ceiling

mounting

Mounting plates for floor stands with

M10 and 1/2 in Whitworth thread

Optional wall mounting bracket

(LBB 3414/00) available

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