PDA103
AUDIO-FREQUENCY
INDUCTION LOOP AMPLIFIER
The PDA103 is a true current mode, audio-frequency induction loop amplifier. It may be
surface-mounted and is designed to cover ticket counters up to 1.2m
2
(PDA103C kit version),
or rooms up to 50m
2
(PDA103R/L/S kit versions).
Safety guidelines, important notes and product safety notes........................................... 2
PDA103 kit contents ............................................................................................................... 3
Overview of the PDA103 induction loop amplifier .............................................................. 4/5
Typical PDA103C 1.2m
2
counter loop system ........................................................................ 6
Typical PDA103R/L 50m
2
small room systems ........................................................................ 7
Typical PDA103S 50m
2
domestic TV/music lounge loop system .......................................... 8
Overview of the outreach plate audio extension system ................................................... 9
Mounting the amplifier ......................................................................................................... 9
System set-up and testing ................................................................................................. 10/11
PDA103 technical specification ............................................................................................. 12
INSTALLATION INSTRUCTIONS
This equipment must be installed by a suitably skilled and technically competent
person. Please read these instructions carefully before installation.
1 of 12
PDA103 Installation Instructions Approved Document No. DAU0000103 Rev 2
12 of 12
PDA103 TECHNICAL SPECIFICATION
Rated supply voltage: 110 to 240Va.c. @ 50/60Hz
Rated power consumption: 18W PSU
Maximum RMS output current: 4A @ 1kHz
Maximum RMS load voltage: 5.5V
PDA103C approx. coverage area
using the TX2 pre-formed loop:
1.2m
2
PDA103R/L/S approx. coverage area
using 0.5mm
2
loop cable:
50m
2
, i.e. rooms up to approx. 7m x 7m
Recommended number of turns: Single turn
Recommended loop conductor size: 0.5mm
2
@ < 50m loop length
Frequency response -3dB: 120Hz to 5kHz as per BS EN 60118-4
Input signal level:
Mic: -60dB unbalanced; Line: -27dB stereo
unbalanced; Outreach: -10dB balanced.
Input impedance: Mic: 1k ohm; Line: 100k ohm; Outreach: 20k ohm.
Microphone phantom power: 12Vd.c.
Signal to noise ratio, A weighted: -62dB
Optical TOS-link receiver: Up to 24 bit, 96kHz sampling
AGC range (3dB change in output
current), reference rated I/P voltage:
10dB
AGC ratio: 20:1
Amplifier mode: True current mode
Sensitivity level controls:
Mic, Line, Digital, Outreach, Metal Compensation,
Level (all rotary pot controls are screwdriver
adjustable).
LED indicators:
Limit (Red), Peak (Red), Loop Fault (Red), Power On
(Green).
Connectors:
Mic (3.5mm mono jack socket); Line (3.5mm stereo
jack socket); Digital; Outreach (4-way pluggable
screw terminal; DC in; Loop (2-way pluggable
screw terminal).
Dimensions (H x W x D): 35mm x 135mm x 130mm (including controls)
Weight: 380g (amplifier only)
IP Rating (to EN 60529): IP40
Operating temperature: 0
0
C to 40
0
C
PDA103 Installation Instructions Approved Document No. DAU0000103 Rev 2
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