OVERVIEW OF THE SIGNET PRO RANGE HEARING LOOP AMPLIFIER
4 of 16
Connections (Free-Standing Model Shown)
SigNET PRO Range Instructions
Approved Document No. DAU0000105 Rev 2
Rear Connectors
1
Microphone:
Accepts standard three-pin male XLR type connector. Optional
12V phantom power is available for electret microphones.
2
Line In:
Accepts standard three-pin male XLR type connector.
3
Loop 1 &
Loop 2 (model dependent):
Induction Loop Connectors 1 & 2. Heavy duty binding
posts.
4
Outreach:
4-way connector. Input for the outreach plate audio input
system (see page 10 for further details).
5
Line Out:
3-way connector for audio output.
6
Relay:
Fault relay provides contacts for remote fault monitoring.
7
Optical (model dependent):
TOS-link digital input connector. Connection to TVs, soundbars.
8
AC Power Input:
230Va.c. mains lead connector.
VU
Line Input
Key Lock
Microphone
Down
Up
min
max
Phantom Phase
Limit Peak
Fault 1 2
HOT!
1
2
Front Display
Front Display
1
Display:
Indicates the status of the amplifier’s inputs and outputs. Displays
menus and adjustment settings.
2
Control buttons
(x4):
Used for navigating the menu displays, adjusting the amplifier’s
settings and unlocking the amplifier.
230
V 50
Hz
Power (max.) 200W
Fuse T 5A H 250V
No user controls or user
serviceable parts inside
LOOP 2
OPTICAL
OPTIONAL
RELAY
NO
COM
NC
LINE OUT
0V A- A+
OUTREACH
0V
A- A+
V+
1
2 3
1 GND
2 +
3 –
MICROPHONE
(PHANTOM 12V)
LINE IN
LOOP 1
1
4
8
3
2
5
6
7
2
Note:
See pages 11 to 12 for alternative wall-mount model connections.
1
IMPORTANT: DO NOT power up the system before completing Step 3 below.
The amplifier MUST NOT be operated without a loop connected to it.
Install Loop 1 Cable and Loop 2 Cable (model dependent)
See ‘Phased array hearing loop systems’, page 9 for example dual loop layouts.
BEFORE connecting the loops to the amplifier, use a multimeter to check the loops are
not shorted to ground at any point. It WILL damage the amplifier if a loop is shorted.
Connect Loop 1 Cable and Loop 2 Cable (model dependent)
Connect the loop(s) to the amplifier’s binding posts using bare
wire ends, 4mm plugs or spade terminals as appropriate.
Connect Input Signal Sources (model dependent)
Connect the relevant input signal sources, e.g. microphone, line in, outreach, optical
(model dependent) to the amplifier, as shown below.
CONNECTING, SETTING UP AND TESTING THE SYSTEM
2
3
Loop 2
(IF FITTED)
Loop 1
Microphone
Line Level Input, e.g. CD Player,
mixing desk, PA System.
3-pin XLR connectors.
Ensure pin arrangements
match those shown above.
4-way outreach connector.
For more detailed information on
outreach plate wiring see page 10.
Digital Optical Connector
(if fitted), e.g. TVs,
soundbars, etc.
230
V 50
Hz
Power (max.) 200W
Fuse T 5A H 250V
No user controls or user
serviceable parts inside
LOOP 2
OPTICAL
OPTIONAL
RELAY
NO
COM
NC
LINE OUT
0V A- A+
OUTREACH
0V
A- A+
V+
1
2 3
1 GND
2 +
3 –
MICROPHONE
(PHANTOM 12V)
LINE IN
LOOP 1
1
2
3
Gnd
Au+
Au-
13 of 16
SigNET PRO Range Instructions
Approved Document No. DAU0000105 Rev 2
Note:
Free-standing model connections are shown in the steps below. See pages 11 to 12 for
alternative wall-mount model connections.
