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INTRODUCTION

The CLD1-AC Compact Loop Driver has been designed as a high quality stand-
alone induction loop driver for ticket counters, banks or other point of sales 
systems.

The unit is designed to drive the standard multi-turn loop (if supplied), or a small 
area perimeter loop up to an area of 40m². Consult designing induction loops 
handbook for more details.

The CLD1-AC features include:

j

Microphone input - for use with unbalanced electret microphones.

k

Selectable microphone or unbalanced line level input. (Mic' mode as 

above)

l

 AC power input - standard 2-pin AC power socket..

m

Loop output with spring clamp connections.

n

Individual level controls for each signal input, MLC (Metal Loss 

Correction) style tone control and loop output.

o

Separate indication of power, input signal and loop current for easy set up.

INPUT 1

INPUT 2

MLC

POWER

LOOP 
CURRENT

LOOP 

CURRENT

INPUT 
SIGNAL

COMPACT 

LOOP 

DRIVER

CLD1-AC

INPUT 2 
SELECT

Line - Mic

LOOP

OUTPUT

POWER INPUT 100 - 240V

     50 - 60Hz   12W

Summary of Contents for CLD1-AC

Page 1: ...ct ventilation of this unit Install in accordance with the manufacturer s instructions 5 Do not install near any heat sources such as radiators heating vents or other apparatus that produces heat 6 Re...

Page 2: ...de j Microphone input for use with unbalanced electret microphones k Selectable microphone or unbalanced line level input Mic mode as above l AC power input standard 2 pin AC power socket m Loop outpu...

Page 3: ...Connect the loop wires to LOOP OUTPUT terminals Polarity is not important To open the spring clamp terminal insert a flat bladed screwdriver into the small tab above the hole Push gently until hole o...

Page 4: ...LOCK DIAGRAM Balanced Input A B Screen Connect screen and ve signal lead together Stereo Source Left Right Screen Keep all wires very short 10k 10k L R Screen Ideally fit the two 10k W summing resisto...

Page 5: ...area a perimeter loop using 0 5mm to 1 5mm cross section wire or equivalent Return the feed to the amplifier with a twisted pair Refer to Designing Induction Loops handbook for details Please consult...

Page 6: ...iate see OPERATION Input signal level too low Check that signal level is the correct level for the chosen input see TECHNICAL SPECIFICATIONS LOOP CURRENT LED not illuminated even at peaks of signal Lo...

Page 7: ...e selectable with switch Fully anticlockwise flat response Mic mode same as Input 1 Environmental Line mode Ambient temperature 20 C to 50 C Input Impedance 820kW IP rating IP20 Sensitivity 20dBu 77 5...

Page 8: ...he product Description Induction Loop Driver Type name CLD1 AC conforms to the following directive s and Norm s 2014 35 EU The Low Voltage Directive LVD and its amending directives 2014 30 EU The Elec...

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