Glensound GS-FW035 User manual

GS-FW035
SINGLE USER ANALOGUE AUDIO
INTERFACE
PRODUCT DETAILS
6 BROOKS PLACE, MAIDSTONE, KENT, ME14 1HE. ENGLAND. TEL: [phone]
Visit our Website at www.glensound.co.uk FAX: [phone]

Page 2of 15
Glensound Electronics Ltd
Thank you for choosing a new Glensound product.
All rights reserved.
Information contained in this manual is subject to change without notice, if
in doubt please contact us for the latest product information.
If you need any help with the product then we can be contacted at:
Glensound Electronics Ltd
1 –6 Brooks Place
Maidstone
Kent
ME14 1HE
United Kingdom
Telephone: [phone]
Fax: [phone]
EMAIL ADDRESSES
General enquires: [e-mail]
Technical enquires: [e-mail]
Sales enquires: [e-mail]

Page 3of 15
PRODUCT WARRANTY:
All equipment is fully tested before dispatch and carefully designed to
provide you with trouble free use for many years.
We have a policy of supporting products for as long as possible and
guarantee to be able to support your product for a minimum of 10 years.
For a period of one year after the goods have been despatched the
Company will guarantee the goods against any defect developing after
proper use providing such defects arise solely from faulty materials or
workmanship and that the Customer shall return the goods to the
Company’s works or their local dealer.
All non-wear parts are guaranteed for 2 years after despatch and any
defect developing after proper use from faulty materials or workmanship
will be repaired under this warranty providing the Customer returns the
goods to the Company's works or their local dealer.

Page 4of 15
EU DECLARATION OF CONFORMITY FOR:
GS-FW0035
Single User Analogue Audio Interface
This declaration of conformity is issued under the sole responsibility of
the manufacturer.
This equipment is manufactured by Glensound Electronics Ltd of Brooks
Place Maidstone Kent ME14 1HE is marked and conforms to the
following Union harmonisation legislation:
Low Voltage Directive: EN60065 and EN62368-1:2014
Emissions: BS EN55032:2015
Immunity: BS EN55035:2017
Signed for and on behalf of Glensound Electronics Ltd.
Gavin Davis, Managing Director
Maidstone, Kent, England
Date: 10/05/2018

Page 5of 15
RoHS DIRECTIVE
EC directive 2002/95/EC restricts the use of the hazardous substances
listed below in electrical and electronic equipment.
This product conforms to the above directive and for these purposes, the
maximum concentration values of the restricted substances by weight in
homogenous materials are:
Lead
0.1%
Mercury
0.1%
Hexavalent Chromium
0.1%
Polybrominated Biphenyls
0.1%
Polybrominated Diphenyl Ethers
0.1%
Cadmium
0.01%
SAFETY WARNING
This product can produce high sound levels via the headphone output.
Please take caution when operating this product as listening to
excessively high peak or sustained levels of volume may permanently
damage human hearing.

Page 6of 15
WASTE ELECTRICAL AND ELECTRONIC
EQUIPMENT REGULATIONS 2006 (WEEE)
Glensound Electronics Ltd is registered for business to business sales of
WEEE in the UK our registration number is:
WEE/JJ0074UR

Page 7of 15
GLENSOUND GS-FW0035
Handbook Contents
Issue 1
Description Page No.
Contents
PRODUCT WARRANTY:........................................................................................................................ 3
OVERVIEW ............................................................................................................................................. 8
GS-FW0035 FRONT PANEL LAYOUT .................................................................................................. 9
GS-FW0035 REAR PANEL LAYOUT ................................................................................................... 10
SIMPLIFIED BLOCK DIAGRAM ...........................................................................................................11
SWITCH OPERATION..........................................................................................................................12
INTERNAL SIDETONE ADJUST ..........................................................................................................13
WIRING INFORMATION.......................................................................................................................15
XLR & JACK Wiring...........................................................................................................................15

Page 8of 15
OVERVIEW
The Glensound GS-FW0035 is an analogue audio device comprising of a mic input
stage with sidetone monitoring, mic output and external audio input monitoring.
The GS-FW0035 has two output options, lazy and switched.
Lazy
Switched
Always outputing the mic input signal
regardless of the switch position.
Only sends the mic audio when the
switch on the front panel is activated
The mic in gain can be adjusted by the trimmer pot on the back panel and features a
compressor limiter stage with a preset band-pass EQ filter.
The Four Wire input allows the user to hear audio from an external source. The gain
of this incoming signal can be adjusted on the back of the unit.
There is internal sidetone level adjustment from a fixed pot.

Page 9of 15
GS-FW0035 FRONT PANEL LAYOUT
1. Mic on Switch
This switch activates the microphone to send to the ‘Switched output’ and the
headphone output (sidetone). The switch illuminates when it is in an ‘on’
position.
The functionality of this switch can be adjusted, read how on page 12.
2. Headphone volume pot
This potentiometer adjusts the level of the microphone (sidetone) and the
incoming audio from the Four Wire input heard in the headphone output.
1. Mic on Switch
2. Headphone volume pot

Page 10 of 15
GS-FW0035 REAR PANEL LAYOUT
1. Headphone output
This standard 6.3mm (1/4”) stereo headphone socket accepts headphones
from 32 to 1000 Ω.
2. Microphone input
This is a balanced microphone input.
3. Mic gain pot
This trimmer pot adjusts the gain level of the microphone input.
4. Lazy output
This XLR output will continually output the raw microphone signal regardless
of the state of the Mic On switch.
5. Switched output
This XLR will output the microphone signal if the state of the Mic On Switch is
‘on’.
6. Four Wire in gain pot
This trimmer pot adjusts the input gain level of the Four Wire in XLR input.
7. Four Wire in
This XLR input is routed to the headphone output.
2. Microphone input
1. Headphone output
3. Mic gain pot
4. Lazy Output
5. Switched output
7. Four Wire In
6. Four Wire in gain
pot
8. AC Mains in

Page 11 of 15
SIMPLIFIED BLOCK DIAGRAM

Page 12 of 15
SWITCH OPERATION
Four separate modes are available for the mic on switch. The selected configuration
will be stored and reloaded when the GS-FW0035 is powered on.
To change the operation of the switch:
1. Turn the device off
2. Hold down the mic on button
3. Turn the device on
4. Release the mic on button
5. Press and release the mic on button until the desired mode is selected (As
indicated by the mic on LED)
6. Remove power, setting will be saved for next power up
Program modes
The following configurations are available for the mic on button
1) Program toggle on/off
a. Indications of mode during mode change
i. PGM LED will flash once
2) Program momentary off (cough)
a. Indication of mode during mode change
i. PGM LED will flash twice
3) Program momentary on mode
a. Indication of mode during mode change
i. PGM LED will flash three times
4) Program momentary off “intelligent lever key”
a. Indication of mode during mode change
i. PGM LED will flash four times

Page 13 of 15
INTERNAL SIDETONE ADJUST
There is an internal trimmer pot for adjusting the level of the microphone that is sent
to the local headphone output (sidetone).
To access the trimmer pot the lid of the unit must be removed.
Equipment needed
1x M3 screwdriver
Please ensure that the unit is powered off and disconnected from mains before
starting this procedure
Procedure
To disassemble the GS-FW0035, remove screws 1, 2, 3 and 4 from the left-hand
side panel of the unit, and then the equivalent screw 3 on the opposite right side
panel of the unit.
Remove the left side panel.
The front panel can now be removed by sliding it towards the left of the unit, whilst
prying it backwards and away from the top and bottom ridges.
Take care when removing the front panel as not to tear or damage the ribbon
cables that connect the front panel board to the motherboard.
The front panel can be placed down resting forwards, so there is no need to
disconnect any cables.
You may now access the trimmer pot shown in the 2 pictures below.
1
2
3
4

Page 14 of 15

Page 15 of 15
WIRING INFORMATION
XLR & JACK Wiring
12
3
XLR SOCKET (FEMALE)
1 2
3
XLR PLUG (MALE)
TIP
RING
SLEEVE
STANDARD XLR AUDIO PINOUTS:
1: Ground/ Earth
2: INPHASE/ POSITIVE/ MIC +
3: MATE/ NEGATIVE/ MIC -
STANDARD HEADPHONE WIRING:
TIP: A/ LEFT Ear
RING: B/ RIGHT Ear
SLEEVE: Common/ Earth