Edin univox Unisign User manual

Installation Guide
Unisign
Super-slim induction loop system
for integration
Part no 204200

2
Content
Safety���������������������������������������������������������������������������������������������������������������������������������������������������������� 3
Introduction����������������������������������������������������������������������������������������������������������������������������������������������� 3
Product overview�������������������������������������������������������������������������������������������������������������������������������������� 4
Installation setup ������������������������������������������������������������������������������������������������������������������������������������� 4
Input jumper settings������������������������������������������������������������������������������������������������������������������������������ 6
MLC �������������������������������������������������������������������������������������������������������������������������������������������������������������� 7
Loop specification ������������������������������������������������������������������������������������������������������������������������������������ 7
Warranty����������������������������������������������������������������������������������������������������������������������������������������������������� 7
Environment���������������������������������������������������������������������������������������������������������������������������������������������� 7
Technical Data������������������������������������������������������������������������������������������������������������������������������������������� 8

3
Safety
1� Please read this Installation guide carefully before installing and operating the product�
2� Keep the Installation Guide available on-site�
3� Do not install the unit near any heat sources such as radiators, heat registers, vents or
other apparatus that produce heat�
4� Never expose the unit to dripping or splashing, nor to liquid or moisture of any kind�
5� Do not make any modifications, extensions, or adaptations to the unit�
6� All installation, service and maintenance work must be performed by qualified
personnel only� No user serviceable parts�
Introduction
The Unisign is a hearing loop integration kit, featuring a compact powerful induction loop
amplifier and a super-slim multi-turn loop, only 3 mm thick� The module is designed for
wide range applications, where necessity of a hearing loop system is required�
Unisign allows for quick and easy installation as a perfect addition to small area
communication systems, such as intercoms, emergency phones, information-and help
points, kiosks or any other system to enhance the intelligibility for hearing impaired
individuals�
Designed on efficient class-D technology and with dual action AGC function, MLS-1 allows
for simple connection to different input signal levels� Univox® MLS-1 features Metal Loss
Compensation (MLC) which enables fine tuning and compensation for metal loss and
attenuation effects�
A fully integrated, correctly installed Unisign system complies with all the requirements of
the IEC 60118-4 standard�

4
Installation setup
Unisign should be mounted on a flat and stable surface, below or at the side of the
intercom panel� (4xM4 screws can be used)� Adjust the amplifier accordingly:
1� Set all level controls (6, 7, 8) to minimum setting (counterclockwise)�
2� Connect the Unisign to the Loop clamp connector (4)� Any additional feed cable
connected between Unisign and MLS amplifier should be twisted�
3� Connect a suitable input signal source to the Input clamp connector (1), see page 6 for
balanced/unbalanced and Mic/Line jumper settings�
4� Connect DC power supply to the Power clamp connector (3), (see connection diagram)�
Observe the power polarity! Verify the power LED indication (2)�
5� Adjust the input signal (6) until the input LED (5) flickers occasionally, indicating
program peaks�
1� Input clamp
connector
2� Power LED 3� Power clamp
connector
4� Loop clamp
connector
5� Input LED 6� Input level
adjustment
7� Parametric
MLC control
8� Loop current
adjustment
9� Output LED
Product overview
10� JP2
balanced/
unbalanced
jumper
11� JP1
sensitivity
jumper

5
6� Adjust the loop current output level (8) to achieve a filed strength compliant
with IEC60118-4 requirements� The output LED (9) indicates that the amplifier is
transmitting correctly� Use a Field Strength Meter to verify the field strength level
within defined distance, at the reference position and direction appropriate for the
application�
Note: In smaller systems the listening level will vary as a function of distance (as for a
loudspeaker)� Check the sound quality (clear sound with no distortion) with the loop
receiver, Univox® Listener�
Unisign connection

6
Input jumper settings
The Input connector (1) can be adjusted for balanced/unbalanced Line and/or Mic
sensitivity according to following:
• Input Line sensitivity, balanced
Input sensitivity jumper JP1 (10) should be ON (sensitivity set to min
85 mVrms to 1�5 Vrms)
Balanced/unbalanced jumper JP2 (11) set to pin 1-2 (bottom and
mid pin), default setting�
Connect the signal cable to Input connector (1)� Leave GND/
screen open, not connected
• Input Line sensitivity, unblanced
Input sensitivity jumper JP1 (10) should be ON (sensitivity set to min 85
mVrms to 1�5 Vrms)
Balanced/unbalanced jumper JP2 (11) set to pin 2-3 (top and mid pin)
Connect the signal cable to Input connector (1), signal line and GND
• Input Mic sensitivity, +9 V phantom ON
Input sensitivity jumper JP1 (10) should be OFF (removed)
Sensitivity level is now set to min 15 mVrms to 1�5 Vrms� Phantom is ON�
Set JP2 (11) to pin 1-2 for balanced or 2-3 for unbalanced (mic dependent)
Connect the signal to the Input connector (1) according to the following:
GND
SIGNAL

7
MLC
The metal loss control function enables system frequency response correction in
installations where the signal strength is strongly influenced by the surrounding metal�
The frequency response can be fine-tuned by adjusting the MLC potentiometer (7),
compensating for the effects of different metal types and configurations�
Loop specification
Recommended loop resistance for the highest system efficiency is approximately 1-1�5Ω�
Warranty
The installer is responsible for installing the product in a way that may not cause risk of
fire, electrical malfunctions or danger�
Misuse of the product in any way, including but not limited to:
• Incorrect installation
• Force majeure e�g� lightning strike
• Ingress of liquid
• Mechanical impact
will invalidate the warranty�
Bo Edin AB shall not be held responsible or liable for interference to radio or TV equipment,
and/or to any direct, incidental or consequential damages or losses to any person or
entity, if the equipment has been installed by unqualified personnel and/or if installation
instructions stated in the product Installation Guide have not been strictly followed�
Environment
Please follow existing disposal regulations in your country� If you respect these
instructions you help ensure human health and environmental protection�

Hearing excellence since 1965
(Univox) Bo Edin AB
Stockby Hantverksby 3,
SE-181 75 Lidingö, Sweden
+46 (0)8 767 18 18
www.univox.eu
unisign-du-gb 221019 Copyright © Bo Edin AB
Technical Data
MLS-1
Power supply External PSU 6-24V DC System voltage 12 V
Power consumption Idle current 36 mA@12 V
Input Galvanically isolated balanced input
Mic/Line sensitivity 15 mV-1�5 Vrms, -34 dBu - +5�7 dBu
Max input level 1�5 Vrms, +5�7 dBu
Phantom power 12 VDC
Source impedance 0-2 kΩ
Output Max voltage 48 Vpp
Max current 5�3 Arms
Distortion <1%
Univox AGC Dynamic Range >50-70 dB (+1�5 dB)
LED indication Power
Input level
Output current
Weight 38 g
Unisign
Dimensions Height 300 mm
Width 210 mm
Depth 3 mm
Weight 220 g
Environment IP54 class
Temp range MLS-1 -40 to 75°C
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