Farnell PDA101L Operation Instructions

Variants
PDA101S For TV lounges etc.
Specification as PDA101L but
the microphone is replaced by
a SCART lead
2
30metres of 0.5mm loop
cable supplied.
PDA101C For ticket counters
Specification as PDA101L but
loop cable replaced by easily
installed TxBI loop pad
P D A 1 0 1 M m i c r o p h o n e
supplied.
Specification
Inputs Two 3.5mm Mono Jack socket
Microphone Impedance 1 KW
Sensitivity -92 dB to -43 dB
Phantom 2.5 V on tip,
max current 0.25mA
Line Impedance 47 KW
Sensitivity -30 dB to -12 dB
Performance Dynamic range >75 dB
Noise <-72 dB
Input level Switchable between mic and line
control for each input
Microphone adjustable
- ∞ to –56dB
Line adjustable
Bandwidth 40 Hz to 15 KHz, 0 dB line input
-52 dB mic input
40 Hz to 8 KHz, -24 dB line input
-77 dB mic input
Output Drive Max 3.12 A Peak
current Max 1.42 A RMS 1 KHz
2
Loop coverage 50m max. - must use 0.5mm
cable or TxBI counter loop pad
Loop impedance 0.2W to 1.2W
Power Mains voltage 230V AC ± 20%
requirements Consumption < 20VA
2m mains lead and fused plug
provided
Fuses Plug top 3A
Internal mains fuse
20mm (HRC)
Dimensions Width 110mm
Height 52mm
Length 133mm
Weight 785g
Packed weight 1640g
No responsibility can be accepted by the
manufacturers or distributors of this product for any
misinterpretation of an instruction or guidance note or
for the compliance of the system as a whole. These
instructions are general and cannot be considered to
cover every aspect of an installation. The
manufacturer's policy is one of continuous
improvement and we reserve the right to make
changes to product specifications at our discretion
and without prior notice. E&OE.
Page 8
Doc No. DCP0001751 JC 09/01/03 rev2
Operation Instruction Manual
PDA101L &
Variants
2
2
50m maximum coverage
Wall mountable case
2 x 3.5 mm inputs switchable between
line and mic as required
Automatic compressor / expander
Input adjustable
Loop current adjustable to suit room
conditions
250mA
Uses up to 30 metres of 0.5mm
only (supplied)
See page 8 for features of variants
Audio frequency induction
loop ampilifiers
Features
The PDA101 is a true constant current
induction loop amplifier and is designed
to cover up to an absolute maximum of
50m² (7.07m x 7.07m).
A gain of 52 dB is applied to the
microphone signal and a gain of 0dB to
the line input. The signals are mixed
using the front panel controls and then
fed into the compander. This ensures
that very low level or high level sources
2
cable
can be used without pre-amplification or
attenuation. The compander maintains
the output level within a 45dB window.
Page 1
Technical Description
Doc No. DCP0001751 JC 09/01/03 rev2