PDA Range PDA103C Installation Instructions Manual page 4

OVERVIEW OF THE PDA103 HEARING LOOP AMPLIFIER
General operation
The amplifier mixes and amplifies the microphone, line, digital (PDA103S kit only) and
outreach input signals and feeds them through its sophisticated automatic gain control (AGC)
circuitry before outputting them to the hearing loop.
Connectors, controls and indicators
Below is a overview of the PDA103's connectors, pot level controls and LED indicators.
Mic Line
Input Input
1 2
5
Outreach Digital
9 Limit
10 Peak
11 Loop Fault
Power On
12
-
DCin +
14V to 20V
15
DC in
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PDA103 Installation Instructions
GND V+ A - A +
Digital
Input Outreach
4
3
7
6 8
Line Mic
Metal
13
Compensation
Level
14
103
Loop
16
-
+
Loop
Output
Approved Document No. DAU0000103 Rev 4
OVERVIEW OF THE OUTREACH PLATE AUDIO EXTENSION SYSTEM
The PDA103 is fully compatible with the
outreach plate audio input extension
system. This system allows the connection
of multiple microphones, or line level
inputs via a range of specially designed
wall, ceiling or desk-mountable single
gang plates.
Up to ten outreach plates (any mix) can
be daisychained to the amplifier's
'outreach' connector (supplied) with
cable lengths up to 100m (total network
length) easily achievable using standard
two pair audio cable such as Belden 8723
- see typical wiring diagrams.
Contact your supplier for more
information.
MULTIPLE OUTREACH PLATE WIRING CONNECTIONS
OUTREACH PLATE
GREEN (A+)
A A IN + A OUT + E
TO NEXT WHITE (A-)
B A IN - A OUT - F
OUTREACH RED (V+)
C V+
PLATE BLACK (GND)
D GND
AUDIO INPUT
MOUNTING THE AMPLIFIER
The amplifier can be surface-mounted in
any orientation, provided the controls are
accessible and indicators clearly visible.
Surface-mounting
Using mounting screws (not supplied) fix
the amplifier securely to a wall, desk or
side of counter, as appropriate. Always
assess the condition and construction of
the mounting surface prior to installation
and use suitable screw fixings (No. 8-10,
or 4-5mm screws).
PDA103 Installation Instructions
SINGLE OUTREACH PLATE
WIRING CONNECTIONS
e.g. APL / APM Outreach Plate
A NOT USED
B NOT USED
C RED (V+)
A A IN+
D BLACK (GND)
B A IN- E GREEN (A OUT+)
A OUT+ E WHITE (A OUT-)
C V+ F
D GND A OUT- F
PDA103
4-WAY OUTREACH
CONNECTOR
BLACK (GND)
RED (V+)
WHITE (A-)
GREEN (A+)
PDA103
4-WAY OUTREACH
CONNECTOR
OUTREACH PLATE
BLACK (GND)
A A IN + A OUT + E
RED (V+)
B A IN - F
A OUT -
WHITE (A-)
C V+
D
GND
GREEN (A+)
AUDIO INPUT
120mm
Surface-mounting
95mm
fixing details
Approved Document No. DAU0000103 Rev 4
GND
V+
A-
A+
GND
V+
A -
A +
5mm (x4)
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