Ampetronic T14-1Rail User guide

Brand: Ampetronic

Model: T14-1Rail

Category: Musical Equipment

Type: User guide

T14-1Rail

Installation Handbook

& User Guide

www.ampetronic.com

CONTENTS

1. Safety & Box Contents ...............................................3

2. Introduction ........................................................4

3. Physical Installation .................................................4

4. Electrical Installation ................................................5

5. Loop Requirements .................................................6

6. Operations .........................................................6

7. Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

8. Features Overview ..................................................9

9 Ethernet Interface. ..................................................10

10. EmailNotications ..................................................18

11. Troubleshooting ....................................................19

12. TechnicalSpecicationstoIEC62489-1 ................................21

13. Warranty ..........................................................23

14. Glossary of Terms ..................................................23

Ampetronic T14-1 Installation Handbook & User Guide Page 3

TO PREVENT ELECTRIC SHOCK DO NOT REMOVE THE

COVER. THERE ARE NO USER SERVICEABLE PARTS

INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL

9.0

4.5

2.3

1.2

CURRENT (A pk)

CLIP

CH B

CH A

AGC (dB)

ERROR

QUICK

MAIN

STATUS

2.1 Current

Current =-52.0dB

MULTILOOP DRIVER

D SERIES

NETWORKED DUAL 14A DSP

Induction Loop Driver

~ 230V 45 - 65Hz

Power: 85W Fuse: T 3.15A L

Designed and Engineered in the UK

D14-2

LOOP O/P CONNECTIONS

www.ampetronic.co

CHANNEL A

LOOP OUTPUT 0.1A

+12V

DC OUTPUT

Serial No.

CHANNEL B

LOOP OUTPUT USB

(UPDATE ONLY) ETHERNET SLAVE IN SLAVE OUT

AC POWER INPUT

INPUT 2

MIC / LINE / AES

INPUT 1

MIC / LINE

Box Contents

• 1 x T14-1 Driver

• T14-1 Quick Start guide

Applicable versions

• T14-1LH

• T14-1LW

• T14-1UH

• T14-1UW including the T14-1V VOIP audio

option

Related Documents

• T14-1 2D Drawing (BC1A210 / BC1A410)

• T14-1 Protocol Guide (UP1A205)

• Testing Hearing Loops on Rail Vehicles

(UP1A208)

• T14-1 Connector Pin-outs (UP5A201)

• T Series Drilling Template (UP4A201)

• T14-1LW 2D & Isometric Drawing (BE1A201)

• T14-1LW 3D STEP model (BE0A201)

• T14-1UH 2D & Isometric Drawing (BE1A601)

• T14-1UH 3D STEP model (BE0A601)

This symbol is used to alert the user to important

operating or maintenance instructions.

The Lightning bolt triangle is used to alert the user

to the risk of electric shock or essential electrical safety instructions.

1. SAFETY

1. It is important to read these instructions, and to follow them.

2. Cleanonlywithadrycloth.Cleaninguidsmayaecttheequipment.

3. Install in accordance with the manufacturer’s instructions.

4. Donotinstallthisequipmentnearanyheatsourcessuchasradiators,heatingventsorother

apparatusthatproducessignicantheatandmaycausetheratedoperatingtemperaturetobe

exceeded.

5. WARNING – THIS APPARATUS MUST BE EARTHED / GROUNDED USING THE M6 STUD

ON THE FRONT PANEL.

6. Referallservicingtoqualiedpersonnel.Servicingisrequiredwhentheapparatushasbeen

damagedinanyway,suchasapowersupplycordorplugisdamaged,liquidhasbeenspilledor

objectshavefallenintotheapparatus,theapparatushasbeenexposedtoanyrainormoisture,

doesnotoperatenormallyorhasbeendropped.

7. WARNING–Toreducetheriskofreorelectricshock,donotexposethisapparatustorainor

moisture.Theapparatusshallnotbeexposedtodrippingorsplashingandnoobjectslledwith

liquidsshallbeplacedontheapparatus.

8. WARNING - Connection to a 70V/100V line speaker system may involve the risk of electric shock

andthereforemustbecarriedoutbyaninstructedorskilledperson.

Tools and Equipment

Smallhandtoolsincludingawirestripper,smallatbladeandpoziscrewdriverswillberequired.

Amagneticeldstrengthmeter,LoopworksMeasureApp&R1Reciever,oratminimumaninductionloop

receiver is vital to check that the loop system is providing the desired level of performance.

FurtherinformationcanbeobtainedfromtheAmpetronicwebsiteorbycontactingAmpetronicSupport.

Ampetronic T14-1 Installation Handbook & User GuidePage 4

2. INTRODUCTION

TheT14-1hearingloopdriverrangehasbeendesignedashighqualitydigital,networkablesingle

loopoutputdrivers.Therangeincludesmodelsintendedforuseinrailorbusapplications.

Dependingonanumberoffactorsregardingtheinstallationoftheloopandtheset-upofthe

driver,theT14-1rangecanprovidecompliancewithIEC60118-4forappropriatelyspeciedloop

installations.

CompliancetorelevantStandards,reducedweightandheatgenerationhavebeenmajorfactorsin

thedesign,combinedwithoptimisedperformanceandthefreedomfromR.F.I.generation.

TheT14-1rangehasaClassDoutputstagewhichoersbetterthan60%increaseinenergy

eciencyoverprevioussolutions.TheproductsfeatureWAGOorHartingconnectorsanduse

remotecontrolandmonitoringviaabrowserbasedcontrolpanelusingstandardnetworkprotocols;

includingHTTP,Telnet,emailandSNMP.

Allunitsfeaturehighpoweroutputsplusamplevoltageheadroom,makingthemsuitableforany

rail,tramorbusapplication.

The T14-1 range also features dual-slope metal loss compensation that caters for a wide range of

metallossfrequencycharacteristics.

3. PHYSICAL INSTALLATION

TheT14-1hasbuilt-inmountingangesoneachside,withtwoM4clearholesoneachange.

Itmaybemountedusingscrewsoronstudswithnutsaccordingtoyourinstallationdesign.

SupportinginformationisavailablefromtheAmpetronicwebsitetoaidinstallationincluding:

• T14-1MountingTemplate(UP4A201)

• MechanicalGeneralArrangement(2D)(BC1A210,BC1A410)

• 3D model in STEP format (BE0A201, BE0A601)

Theunitmaybemountedinanyorientation(sideways,horizontalorinverted)onapanelwith

suitableload-bearingcapability.

Itisrecommendedthattheunitbemountedinsuchawaythat:

• Thereisaccesstothemountingscrewsorstudstoallowittobesecurelymounted

• Anti-vibrationmeasuresareincludedinthemountingmethod(e.g.springwashers,thread

lock)

• There is access to the front panel to allow connection/disconnection in case of maintenance

• ThefrontpanelLEDscanbeviewed,andaUSBmemorydevicecanbeinsertedand

removed from the USB port

• IfnotonapermanentEthernetnetwork,anEthernetcablecanbetemporarilyconnectedto

theM12Ethernetconnectorforcongurationanddiagnosticsifneeded

Mountingaccessoriesareavailableifrequired.Theseincludemountingtraysfor19”and300mm

racksystems.Othersuitableandsecuremountingbracketscanbeusedtosuityourinstallation

environment.

Ampetronic T14-1 Installation Handbook & User Guide Page 5

4. ELECTRICAL INSTALLATION

Safety Earth Reference forelectricalsafetyground.ALWAYSconnecttheM6earthstudto

thevehiclechassisorearthreferenceusingasuitablereliableconnectionmethod.Thisis

requiredforsafetyandEMCcompliance.

Note:intheHartingPowerandLoopconnectors,the‘earth’pinprovidedaspartoftheshellisnot

connected.UsetheM6EarthStudforelectricalsafetyearthconnection.

Power: Depending on the version of the product, use the appropriate

twopins:

• 24Vto36VDC(T14-1LW,T14-1LH):use“0V”and“+V(LO)”

• 72Vto110VDC(T14-1UW,T14-UH):use“0V”and“+V(HI)”

Onlytherelevant+Vpowerpinisconnectedineachunitversion–ifthe

other+Vpinisinadvertentlyconnected,nodamagewillbecausedbut

theunitwillnotbepowered.

IncludeMCBovercurrentprotectioninthesupplycircuitwithminimum

ratings as shown in section 12 of this document

Loop Output: Connect the two ends of the loop to the two pins of the

connector.

Audio Inputs: Twobalanced,transformerisolatedaudio

inputsareavailable.Eachaudioinputmaybeconnectedto

a choice of source signal levels, depending on the

application.

Connect each audio input source to 0V and one of 3V, 30V

or100Vline(NBthisisthe‘peak’leveloftheconnection).

Do not connect to more than one input level in each input.

Theinputsare‘highimpedance’relativetoatypicalspeakerloadimpedanceateachsignallevel.

ThismeansthattheT14-1willnotaddadditionalloadtothesignalsource(e.g.PAamplier).

Wherepossible,donotrouteaudioinputandloopoutputcablesclosetogetherandparallel.Itis

possiblethatsystemstabilitywouldbereduced.

Enable Inputs: Eachinputcanberemotelyenabledby5V

to24VDCconnectedbetweentherelevantenableinputand

enable‘common’.Thisfunctionalitycanbeenabled/disabledin

thewebbrowsercontrolinterface.

*See T14-1 Connector Pin-outs document for more detailed wiring

information.

Input 1 Input 2

Con 1 Pin Description

1 NC

2 NC

3 Low V

(24V to 36V DC)

4 GND

5 High V

(72V to 110V DC)

Con 2 Pin Description

1 Loop +

2 Loop -

3 NC

4 NC

5 NC

Con 3 Pin Description Con 3 Pin Description

1 Input 2, 100V 12 NC

2 Input 1, 100V 13 NC

3 NC 14 NC

4 Input 2, 30V 15 NC

5 Input 1, 30V 16 NC

6 NC 17 Input 1, enable

7 Input 2, 0V 18 Input 2, enable

8 Input 2, 3V 19 Enable GND

9 NC 20 Status contact

10 Input 1, 3V 21 Status contact

11 Input 1, 0V

T14-1 Harting connector pin-outs

T14-1LH, T14-1UH

Industrial Ethernet

M12 4 pin D coded

(female on chassis,

male on cable).

View: Wiring face of

cable mount connector

Issue no UP5A201-1 / DOI: 15NOV2019

Connector components

Harting

Part Number Description

09120213101 HAN 21W insert, female

09120053001 HAN 5-way insert male

09120053101 HAN 5-way insert female

09670008476 Pins, 0.5mm² female (signal)

09330006202 Pins, 2.5mm² female (power)

09330006102 Pins, 2.5mm² male (loop)

19200030430 HAN 3A hood/backshell

09200009995 Housing screw

Generic M25 Cable bush

USB A Socket

(for memory

devices only)

5 way

female

insert

5 way

male

insert

21 way

female

insert

Con 1 Pin Description

1 NC

2 NC

3 Low V

(24V to 36V DC)

4 GND

5 High V

(72V to 110V DC)

Con 2 Pin Description

1 Loop +

2 Loop -

3 NC

4 NC

5 NC

Con 3 Pin Description Con 3 Pin Description

1 Input 2, 100V 12 NC

2 Input 1, 100V 13 NC

3 NC 14 NC

4 Input 2, 30V 15 NC

5 Input 1, 30V 16 NC

6 NC 17 Input 1, enable

7 Input 2, 0V 18 Input 2, enable

8 Input 2, 3V 19 Enable GND

9 NC 20 Status contact

10 Input 1, 3V 21 Status contact

11 Input 1, 0V

T14-1 Harting connector pin-outs

T14-1LH, T14-1UH

Industrial Ethernet

M12 4 pin D coded

(female on chassis,

male on cable).

View: Wiring face of

cable mount connector

Issue no UP5A201-1 / DOI: 15NOV2019

Connector components

Harting

Part Number Description

09120213101 HAN 21W insert, female

09120053001 HAN 5-way insert male

09120053101 HAN 5-way insert female

09670008476 Pins, 0.5mm² female (signal)

09330006202 Pins, 2.5mm² female (power)

09330006102 Pins, 2.5mm² male (loop)

19200030430 HAN 3A hood/backshell

09200009995 Housing screw

Generic M25 Cable bush

USB A Socket

(for memory

devices only)

5 way

female

insert

5 way

male

insert

21 way

female

insert

Con 1 Pin Description

1 NC

2 NC

3 Low V

(24V to 36V DC)

4 GND

5 High V

(72V to 110V DC)

Con 2 Pin Description

1 Loop +

2 Loop -

3 NC

4 NC

5 NC

Con 3 Pin Description Con 3 Pin Description

1 Input 2, 100V 12 NC

2 Input 1, 100V 13 NC

3 NC 14 NC

4 Input 2, 30V 15 NC

5 Input 1, 30V 16 NC

6 NC 17 Input 1, enable

7 Input 2, 0V 18 Input 2, enable

8 Input 2, 3V 19 Enable GND

9 NC 20 Status contact

10 Input 1, 3V 21 Status contact

11 Input 1, 0V

T14-1 Harting connector pin-outs

T14-1LH, T14-1UH

Industrial Ethernet

M12 4 pin D coded

(female on chassis,

male on cable).

View: Wiring face of

cable mount connector

Issue no UP5A201-1 / DOI: 15NOV2019

Connector components

Harting

Part Number Description

09120213101 HAN 21W insert, female

09120053001 HAN 5-way insert male

09120053101 HAN 5-way insert female

09670008476 Pins, 0.5mm² female (signal)

09330006202 Pins, 2.5mm² female (power)

09330006102 Pins, 2.5mm² male (loop)

19200030430 HAN 3A hood/backshell

09200009995 Housing screw

Generic M25 Cable bush

USB A Socket

(for memory

devices only)

5 way

female

insert

5 way

male

insert

21 way

female

insert

WAGO | Harting*

Con 1 Pin Description

1 NC

2 NC

3 Low V

(24V to 36V DC)

4 GND

5 High V

(72V to 110V DC)

Con 2 Pin Description

1 Loop +

2 Loop -

3 NC

4 NC

5 NC

Con 3 Pin Description Con 3 Pin Description

1 Input 2, 100V 12 NC

2 Input 1, 100V 13 NC

3 NC 14 NC

4 Input 2, 30V 15 NC

5 Input 1, 30V 16 NC

6 NC 17 Input 1, enable

7 Input 2, 0V 18 Input 2, enable

8 Input 2, 3V 19 Enable GND

9 NC 20 Status contact

10 Input 1, 3V 21 Status contact

11 Input 1, 0V

T14-1 Harting connector pin-outs

T14-1LH, T14-1UH

Industrial Ethernet

M12 4 pin D coded

(female on chassis,

male on cable).

View: Wiring face of

cable mount connector

Issue no UP5A201-1 / DOI: 15NOV2019

Connector components

Harting

Part Number Description

09120213101 HAN 21W insert, female

09120053001 HAN 5-way insert male

09120053101 HAN 5-way insert female

09670008476 Pins, 0.5mm² female (signal)

09330006202 Pins, 2.5mm² female (power)

09330006102 Pins, 2.5mm² male (loop)

19200030430 HAN 3A hood/backshell

09200009995 Housing screw

Generic M25 Cable bush

USB A Socket

(for memory

devices only)

5 way

female

insert

5 way

male

insert

21 way

female

insert

Ampetronic T14-1 Installation Handbook & User GuidePage 6

Status Output: An isolated relay contact is provided which

canbeconnectedtoamonitoringsystem.Therelaycontacts

are‘NO’:closedwhentheunitisoperatingnormally,andopen

when a fault is detected (including lack of power). The fault

conditionsindicatedbytherelay(andbyothermonitoring

protocols)arecongurableinthewebbrowsercontrol

interface.

Ethernet:TheEthernetinterfaceisa10/100Mbpsauto-sensingconnectiononaM12

D-coded4-pinfemaleconnector,asusedinindustrialEthernetnetworks.M12DtoRJ45

cablesareavailableifrequiredforeldprogrammingwhennotpartofanetwork.

*See T14-1 Connector Pin-outs document for more detailed wiring information

5. LOOP REQUIREMENTS

Thedesignandinstallationofthehearingloopcableinstallationshouldbeundertakenaccordingto

specicdesigninstructionsandadviceprovidedbyAmpetronicforyourparticularproject.

Ingeneral,toachievecorrectoperation,thetotalloopcableandfeedconnectionresistanceshould

bebetween0.1Ωand0.9Ω(atDC).Iftheloopresistanceishigherthanthis,theT14-1willstill

operatebutmaynotdeliverthefullratedloopoutputcurrentintotheloop.Ingeneral,loopand

feedimpedance(at1.6KHz)shouldbelessthanthevoltagecapabilityofthedriverdividedbythe

targetcurrentrequiredtoachieveeldstrength.LoopimpedancesabovethismaycausetheCLIP

indicatortoilluminate.Seetroubleshootingsectionforadviceonhowtocorrectthisandgetyour

system.

Ifthetotalloopandfeedcableresistanceisoutsidetherange0.1Ωto10Ω(atDC),theError

LEDmayilluminateatstartupandtheloopdriveroutputmaybedisabledorde-rated.Loopand

feedimpedance(at1.6KHz)shouldbelessthanthevoltagecapabilityofthedriverdividedbythe

targetcurrentrequiredtoachieveeldstrength.HigherimpedancemaycausetheCLIPindicator

toilluminate.Seetroubleshootingsectionforadviceonhowtocorrectthisandgetyoursystem

working.

TheAmpetronicwebsiteandsupportteamprovidemoredetailsonloopandfeedcables.The

correct design and positioning of the actual loop is vital for satisfactory system performance and to

achieveasystemcompliantwithIEC60118-4(orlocalequivalent).IfindoubtconsultAmpetronic

for advice.

6. OPERATIONS

Factory Settings: Unlessaspecicclientcongurationhasbeenagreed,T14-1loopdriversare

suppliedwiththefollowingdefaultsettings:

Current:      -10dBfromfulloutput

MetalLossCompensation(MLC):  MLCo

Input1&2:     “AlwaysOn”,LowCutFilterO,Attenuation:-20.0dB

WAGO | Harting*

Con 1 Pin Description

1 NC

2 NC

3 Low V

(24V to 36V DC)

4 GND

5 High V

(72V to 110V DC)

Con 2 Pin Description

1 Loop +

2 Loop -

3 NC

4 NC

5 NC

Con 3 Pin Description Con 3 Pin Description

1 Input 2, 100V 12 NC

2 Input 1, 100V 13 NC

3 NC 14 NC

4 Input 2, 30V 15 NC

5 Input 1, 30V 16 NC

6 NC 17 Input 1, enable

7 Input 2, 0V 18 Input 2, enable

8 Input 2, 3V 19 Enable GND

9 NC 20 Status contact

10 Input 1, 3V 21 Status contact

11 Input 1, 0V

T14-1 Harting connector pin-outs

T14-1LH, T14-1UH

Industrial Ethernet

M12 4 pin D coded

(female on chassis,

male on cable).

View: Wiring face of

cable mount connector

Issue no UP5A201-1 / DOI: 15NOV2019

Connector components

Harting

Part Number Description

09120213101 HAN 21W insert, female

09120053001 HAN 5-way insert male

09120053101 HAN 5-way insert female

09670008476 Pins, 0.5mm² female (signal)

09330006202 Pins, 2.5mm² female (power)

09330006102 Pins, 2.5mm² male (loop)

19200030430 HAN 3A hood/backshell

09200009995 Housing screw

Generic M25 Cable bush

USB A Socket

(for memory

devices only)

5 way

female

insert

5 way

male

insert

21 way

female

insert

Ampetronic T14-1 Installation Handbook & User Guide Page 7

Input3:      “AlwaysO”,LowCutFilterO,Attenuation:-20.0dB

PowerSavingoptions:    SleepmodeO

DriverName:     Notset

Ethernet:      ParametersSetbyDHCP

Statusreporting/Protocols:   EmailO(noaddressset),SNMPO,TelnetO

TheT14-1drivershaveadjustmentssetindecibels(dB).Asettingof0dBequatestomaximum

current or to maximum input gain. A value of less than 0dB will reduce the current or input gain

accordingly.ThissimpliesadjustingthedriveroutputtomeettheInternationalPerformance

Standard:e.g.Iftheloopmagneticeldstrengthismeasuredtobe2.7dBbelowtherequiredlevel

thenadding2.7dBtotheloopdriveroutputcurrentshouldbringthemagneticeldstrengthtothe

desired level to meet the Standard.

Youcanresetthedrivertodefaultvaluesbyuploadingacongurationlecontainingalldefault

values,e.g.fromaUSBmemorydevice(seebelow).

AfactoryresetcanalsobeperformedviaTelnet(seeUP1A205ProtocolGuide),howeverthiswill

setinputsto-80dBandcurrentto-20dB.Allothersettingswillbeasabove.

Control Interfaces

TheT14-1drivershaveawebbrowserinterfaceavailableviatheEthernetconnection.

CongurationuploadviaUSBisalsoavailable.

BASIC SETUP METHOD

a. As a minimum, connect safety ground, power, loop, and audio input signals (see

  above).Enableandstatusconnectionscanbeusedifdesired.

b. ConnectacomputertotheEthernetport(e.g.usinganM12toRJ45ethernetcable)as

  describedinSection9below.Logonusing‘audioadmin’or‘superadmin’.

c. Browsetothe‘Audio’tabofthewebsite.

d. Enablethe‘combi’testsignalusingthewebsiteinterface.Turnuptheloopoutput

  currentuntilthecorrectmagneticeldstrength(0dBre:400mAm-1)isobtainedinthe

  intendedareaofuse.Measurethemagneticeldstrengthusingamagneticeld

strength meter.

e. Enablethe‘pinknoise’testsignalusingthewebsiteinterface.Usethemagneticeld

  strengthmetertomeasurethefrequencyresponseofthemagneticeld.Onthe 

  websiteadjusttheMetalLossControl(usingthedual-slopefeatureifnecessaryto

  correctamorecomplexcurve),andrepeatthetestadjustinguntilthefrequency 

  responseis+/-3dBre:the1kHzvalueoverthe100Hzto5kHzrange.

f. Turnothetestsignalsandconnecttheintendedaudioinputsignals.

g. Apply the intended external input audio signal to the unit, and increase the input

  gainsliderforthatinputonthewebsiteuntilthecompressionbargraphshowsabout

6-12 dB compression (and the AGC LED is lit)

Ampetronic T14-1 Installation Handbook & User GuidePage 8

7. BLOCK DIAGRAM







































 





























   



























































Ampetronic T14-1 Installation Handbook & User Guide Page 9

8. FEATURES OVERVIEW

FRONT PANEL & CONNECTIONS

 M6ChassisGroundStudSafetyground

connection to vehicle chassis

MUST BE CONNECTED

DC Power Input (WAGO and Harting)

 -seeSection4:ElectricalInstallationfor

connection details

Loop Output

 Connectloopbetweenthetwoterminals

 StatusOutputandInputEnable

Status output is an isolated relay contact

 Toremotelyenableaninput,apply+5V

 to+24VDCbetweentherelevantinput 

terminal and common.

NB remote control must be enabled in the

web interface before use.

Analogue Audio Input 1 & 2

For each input, connect to 0V(common)

and one of 3V / 30V / 100V, as appropriate

for the signal source.

LED Indications

In startup Normal

operation

STATUS

(red/green)

Flash green: Testing

Fast Flash amber:

Updating software

Green: OK

Flash Green: Sleep

Flash Amber: Standby

Flash red: Error

AGC

(green)

-Green: Signal >6dB

aboveAGCthreshold

CLIP

(red)

-Red: Clipping (output)

CURRENT

(green)

Slow ash:overcurrent Green: Output >-20dB

(asheson/oinnormal

use)

PROTECT

(red)

Slow ash: overcurrent Slow ash: overtemp

Fast ash: power limit

On:bothoftheabove

LOOP O/C

(red)

Fast ash:

Loop low resistance

Slow ash:

Loop open circuit

 USB‘A’connectorFirmware/cong 

update from USB memory only

 10/100EthernetM12connector,D-coded

Ethernet status / activity LEDs

Figure1:Frontpanel,WAGOconnectors

① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨

①

②

③

④

⑤

⑥

⑦

⑧

⑨

Ampetronic T14-1 Installation Handbook & User GuidePage 10

9. ETHERNET INTERFACE

TheT14-1familyofproductsarecontrolledthroughanumberofEthernetbasedprotocols.The

normalsetupinterfaceisaccessedthroughabuilt-inwebsite.

TelnetandSNMPprotocolsarealsoavailable.Pleaseseeseparateguidestousetheseprotocols.

Toaccessthebuilt-inwebsite,useasuitablecabletoconnecttheT14-1toanEthernetnetworkor

directlytotheEthernetportofyourcomputer.TypetheT14-1unit’sIPaddress(e.g.192.168.0.25)

intotheaddressbarofyourwebbrowsertoaccessthecongurationwebsite.

Connection with DHCP

TheT14-1issuppliedwithDHCPenabled,andwillbeallocatedanIPaddressbyyourDHCP

server,ifpresent.YouwillneedtondtheT14-1addressusingtheDHCPserveroranetwork

scanning application.

Connectionwithlink-localautoconguration

IfthereisnoDHCPserver,theT14-1supportslink-localautocongurationandwillassignitself

anIPaddressinthe169.254.0.0/16range.Themostcommonuseofthisisadirectconnection

betweenacomputerandtheT14-1,inwhichcasethecomputershouldalsoautomaticallyderive

anIPaddressinthesamesubnet.

InthiscongurationtheT14-1supportsmDNSforeaseofaccesswithoutknowingtheIPaddress.

Enteringhttp://t14-1n.localinawebbrowseraddressbarwillresolvetotheIPaddressofthedriver.

ThemDNShostnameislinkedtothedrivernamesocanbeupdated,forexampleifmultipledrivers

needtobeaccessedonalargerlink-localnetwork,eachonemustbegivenauniquename.

NotethatspacesandperiodsarenotsupportedinmDNS,soshouldbeavoidedinthedrivername

ifusingthisfeature.IfthedrivernamehasbeenchangedandforgottenpleasecontactAmpetronic

for assistance in resetting this.

Accessing the website

T14-1driversfeatureawebinterfacethatcanbeviewedinawebbrowserandisusedtomonitor

andadjusttheloopdriver.

YouwillbeaskedfortheUserNameandPasswordforthedriverasadeterrenttounauthorised

parties.Thesevaluesarecasesensitiveandneedtobeenteredoncepersessiontoaccessthe

driver.

Fourlevelsofaccessareavailable:

User name Access to

(not logged in) Status page only (default on rst connection)

audioadmin Audio settings page & Status page

netadmin Network settings page & Status page

superadmin all settings

For all user names, the default password = ampetronic (all lower case)

Youcanchangethepasswordforeachuserfromthewebinterface.

Superadmin can change all passwords, other users can only change their own password.

Considerationsforexternalnetworkconguration

TheT14-1driverscommunicateusinganumberofnetworkportnumbers.Ifyouwishto

communicate to/from the loop driver across a wider network (e.g. including routers, gateways, etc),

Ampetronic T14-1 Installation Handbook & User Guide Page 11

you may need to ensure these ports are open for communication.

Thewebinterfaceoperatesonthestandardport80.Theemailerrormessageservicesends

throughport587.Port80islikelytoalreadybeopenforoutboundtracbutyournetwork

administratormayneedtoallowinboundconnectionstotheloopdriveronthisport.587maybe

openbutifyouhaveproblemsyoumayneedasktheadministratortoallowoutboundtractothe

internet(theloopdriverwillusethe‘SendGrid’servicetoroutealloutboundemailalerts).Seethe

T14-1 Protocol Guide for more details of ethernet communication protocols.

Web Interface Structure

TheWebinterfaceissplitintothreetabs:AudioSettings,NetworkCongandStatus.Clickingon

thetabheadingwillchangetothecontentsofthattab.

Atthebottomofthescreenaremetersforthelevelofinputaudiocompressionandtheoutput

current.

Information icons are shown alongside section headers, clicking or tapping on these will display a

tooltip to help explain the relevant settings or information. Click or tap anywhere outside the tooltip

todismissit.Thedisplayedvaluesareupdatedonceasecondtoallconnectedusersandwillreect

changesmadebyallusersandprotocols.

Ampetronic T14-1 Installation Handbook & User GuidePage 12

Audio Settings Tab

Input 1, 2 and 3 Settings:

Input State: Canbe‘AlwaysOn‘,‘AlwaysO’or‘Remoteenable’(‘remote’

 allowsinputon/ostatetobecontrolledviathefrontpanel 

hardware connections).

Lowcutlter: Canbe‘o’or‘250Hz’.Appliesaltertoremoveinputsignal

 frequenciesbelow250Hz.Thiscanimproveintelligibilityofspeech.

Attenuation (dB): Controls the attenuation of the input 1 channel. Values of 0 to

-80dB in 0.1dB steps are allowed.

Input 2 Priority: Turns on the priority input option, which attenuates other inputs

when signal level on input 2 exceeds AGC threshold.

Ducking Level (dB): Adjuststheattenuationappliedtotheotherinputs,whenpriorityis

active.

Test Signals:

Signal Type: Dropdownboxtoselectthetestsignal–optionsareOFF,Pink

 Noise,‘SineWave’,‘Combi1kHz’,‘Combi1.6kHz’,‘Combi2.5kHz’

 and‘LoopOutputDisabled’.Thelastoptionmutestheloopoutput,

 e.g.toallowbackgroundnoisemeasurementstobemade.

Frequency: Controlsthefrequencyof thecontinuoussinewavetest 

signal. Only shown when Sine Wave selected.

Timeout: Controls the time for which test signals remain on. 10, 30, 60 and

 120(default)minutesareavailable.

Current: Controls the output current to the loop. 0 dB is maximum output,

-80 dB is minimum output.

Metal Loss Compensation:

Slope: Correctssystemfrequencyresponsewhenaectedbymetal

structures. Options are OFF, Custom or a slope of 0.25dB/

 Octaveto4.00dB/Octave.SeeTechnicalSpecicationsin 

section 15 for further details.

HF Boost: OnlyshownwhenasingleMLCSlopeisselected.Providesa

 presetdual-slopecongurationintendedtobetteroptimise 

 frequencyresponseinsystemswithmoresignicanthigh 

 frequencylosses.Inmostcasesusingacustomdualslopewill

 allowabetterfrequencyresponse.

NB: the following items are only shown when “Custom MLC” is selected

Custom LF:  ControlstheslopeoftheLowFrequency(LF)sectionofthe

 customMLC.Valuesmaybebetween0to4dB/octavein0.1dB

steps.

Custom Knee:  ControlsthefrequencywheretheLFcustomslopestopsandthe

HF slope starts.

Ampetronic T14-1 Installation Handbook & User Guide Page 13

Custom HF:  ControlstheslopeoftheHighFrequency(HF)sectionofthe

 customMLC.Valuesmaybebetween0to4dB/octavein0.1dB

steps.

Output Phase

90° Shift:  Turnson90degreephaseshifttousemultipledriversina 

 multilooporphasedarrayconguration.LeaveinthedefaultOFF

 positioninmostinstallationsunlessexplicitlyrequiredbysystem

design.

Power Saving Options

Sleep mode: Enablesalowpowerstatewhichisappliedafterauser 

(afternosignal) congurableperiodwithnoaudiosignalsaboveathreshold.

Normal operation resumes on application of an audio signal that

 triggerstheAGC,orbyuserinterventiontoturn‘standby’o.

 OptionsareO(default),10,30or60mins.

Standby: Standbyisalowpowerstate,selectedbyswitchingthecontrol

 to‘On’.Onlychangingthiscontrolto‘O’canreturntheunit

to normal operation. In the low power state, the loop output

 isdisabled.Nocurrentisdeliveredtotheloop,andtheloopdriver

will only draw the Quiescent power.

NetworkCongTab

ThenetworkcongtaballowsyoutoconguretheEthernetandmanagementsettingsofthe

driver.

Ampetronic T14-1 Installation Handbook & User GuidePage 14

EthernetConguration:

MAC Address: MediaAccessControl(MAC)address-auniquenumberthat

 identieseachEthernetconnecteddevice.Thiseldisread

only.

Driver Name: The name of the loop driver reported in the Email reports, on

 thewebpageheading,andinnetworkfunctions.

DHCP Client: DynamicHostCongurationProtocol(DHCP).Whenenabled,

 afteritisturnedontheloopdriverwillobtainallnetwork 

 congurationeldsfromtheDHCPserveronthenetwork.

DHCP Option 61: EnablesDHCPOption61.ThistransmitsacongurableDHCP

 Option61ClientIDtotheDHCPserver,whichcanbeusedfor

increased security and/or to allocate the same IP address to a

device role even if the actual unit is replaced.

DHCP Option 61 Client ID: TheclientIDtobetransmittedtotheDHCPserver.Defaultsto

 modelnamepluslast6digitsofMACaddress,editablewhen

 Option61isenabled.Leaveblankthensaveandrestartdriverto

reset to default client ID.

SaveEthernetCong PressthisbuttonifyouhavechangedanyoftheEthernet

and Restart: parameters. It will save any changed settings and restart the driver

 toimplementallpendingcongurationchanges.

NB:thefollowingitemisonlyshownwhenDCHPis“O”

IP Address: The IP address that the driver is currently using. If DHCP is

 enabled,theDHCPsystemwilloverridetheenteredvalue.

Gateway: TheIPaddressoftheGatewayusedforroutingcommunication

outside the local network.

Subnet Mask: TheSubnetMaskwhichdenesthescopeofthelocalIPrange

 tobeused.

Primary DNS: The IP address of the primary domain name server that will resolve

canonical names to IP addresses.

Secondary DNS: The IP address of the secondary domain name server which will

 beusediftheprimaryDNSserverdoesnotrespond.

Status Reporting:

Reporting Email Address: Ifenabledbelow,anemailwillbesenttothisaddress(via 

Sendgrid) whenever an event selected in the reporting options

page occurs.

Email Error Reports: On/Ocontrolforemaileventandregularintervalstatusreporting.

Status report Interval: Anemailreportcanbesentattheselectedinterval–defaultis‘O’

SNMP:  Enablessimplenetworkmanagementprotocol.Onceenabled,

 remoteSMNPmanagerscanconnecttotheloopdriverto

 readparametersandcanrequeststatus‘traps’tobesent 

 accordingtotheconguredstatusreportingoptions.Theunitmust

 bemanuallyrestartedtoimplementthechangeafterenablingor

 disablingSNMP.

Ampetronic T14-1 Installation Handbook & User Guide Page 15

NB: The following items are only visible when SNMP is enabled:

SNMP manager list:  ShowsallSMNPmanagersthathaverequestedstatus 

 trapsbesenttothem.YoumayaddorremoveSMTPmanagers

 manually.Pressthe‘updatemanagerlist’buttontoimplement

changes. This will restart the unit (and any other pending changes

 willbeapplied)

Status Reporting Options: Link to a separate page where you can choose which status

 reportsaresentviathevariousmethodsavailable.

Voice-over-Internet-Protocol:

VOIP: Controls the Voice-over-Internet-Protocol, which allows standard

SIP/RTP servers to send audio over Ethernet to the loop driver.

 Seebelowformoredetailsofsupportedformats,etc.

Licence Status:  Showswhetheravalidlicenceleisloaded.

Choose Licence File:  Thebrowsebuttonallowsyoutoselectthelecontainingan

 encryptedkey(whichmaybepurchasedformAmpetronic)to

 enableVOIPcommunication.Oncealeisselected,pressthe

 ‘LoadLicenceFile’buttontouploadit.Thelicencestatuswill

 changetoshow‘ValidLicence’onceavalidlicencekeyleis

loaded.

 AVOIPlicencekeymayalsobeloadedfromaUSBmemory

 deviceuponstartup/rebootoftheunit.SeeFirmwareUpdatesand

 Conguration/LicenceUploadbelow.

Control Protocol Selection:

Telnet: EnablesordisablesTelnetprotocol.Theunitmustbe 

restarted to implement this change.

Firmware Upgrades: When connected to a network clicking this control takes you to

 awebpageshowingcurrentlyavailableupgrades.

Saveandrestoreconguration:

Thissectionallowsthecompletecongurationofthedriver(includingpasswords,butnot

includingVOIPlicenceles)tobesavedtoanXMLleonthebrowsingdevice.ThisXMLle

canthenbeloadedintoaT14-1loopdrivertosettheparameterstobeidenticaltheunitfrom

whichthecongurationlewassaved.

Acomplete’default’congurationlecanberequestedfromAmpetronicincaseaunitneeds

restoringtodefaultsettings,e.g.ifEthernetparametershaveinadvertentlybeensetsuchthat

the unit cannot communicate.

AsavedcongurationlemayalsobeloadedfromaUSBmemorydeviceuponstartup/reboot

oftheunit.SeeseparatedocumentfordetailsofhowtousetheUSBportforrmwareupdates,

congurationupload,andVOIPlicenceupload.

Ampetronic T14-1 Installation Handbook & User GuidePage 16

Status reporting options page:

AllowsselectionofreportinglevelsanddeliveryviaEmail,thestatusrelaycontact,orSNMP

protocol.Foreachprotocol,selectthetickboxesfortheeventswhereareportisneededforthat

event.

Notethatsomecriticaleventscannotbedisabledandwillbesentwheneverthatreportingroute

is in use.

Toexitthispagewithoutsavingchanges,pressthe‘back’linkattheTOPofthepage.Tosave

changes and restart the unit,pressthe‘UpdateStatusReporting’buttonattheBOTTOMofthe

page.

Status Tab:

Thestatuscongtab

allows you to see the

status of the driver.

Software version:  Theversionofthebootloader,thermwareinthedriverand

 theversionofthewebsite.Inordertoupdatermware, 

please refer to Section 12 and a separate guidance document for

uploading via the USB port.

Ampetronic T14-1 Installation Handbook & User Guide Page 17

Power Mode: Shows the current status of the driver, either Active, Sleep or

 Standby.

Heatsink Temperature: This is the temperature of the driver’s internal heatsink. If it

 exceeds75°Cthedrivercurrentwillbereduced.Ifitexceeds85°C

 thedriverwillbemuted.

Current Amps:  Thecurrentbeingdrawnfromthetransformer.Ifthisexceeds

 themaximumlimitforlongerthanadenedtimethenthedriver

 currentwillbereduced.Theamountofadditionalattenuationwill

 beshowninthederatesection.

Protection Derating: This is the amount of additional attenuation that is added to the

current setting when the transformer is overloaded or the heatsink

is too hot.

Loop Parameters: The measured value of the resistance and inductance of the loop

when the driver was last restarted or switched on.

Uptime: This shows the time since the driver was last restarted or

switched on.

Start Up Tests: This shows if the driver has stopped on a start-up test failure

 (thetestthatfailedwillbedisplayedinred)orifthestart-uptests

all passed (start-up tests completed).

Error(s): Either No Error if the driver is running correctly or a list of the error

 messagesinred.Seechapter10Troubleshootingforacomplete

description of the error codes, what causes them and how to

resolve reported issues.

Ampetronic T14-1 Installation Handbook & User GuidePage 18

10. EMAIL NOTIFICATIONS

ThedrivercanbeconguredtosendEmailstoaspeciedaddressundercertainconditions.

These Emails contain a list of any errors that are present and the settings of the driver at the time

thattheEmailwassent.AsampleEmailisshownbelow:

ThisisanautomaticallygeneratednoticationEmailsenttothecontactaddressconguredbytheinstaller/

administrator of an Ampetronic Loop Driver. Please do not reply to this Email.

YourHearingLoopDrivernamedT14-1withMACaddress30:0A:60:A0:52:F1,haseitherdevelopedafaultorthe

settingshavebeenmodiedwithoutauthorisation.Theamplierrmwareversionisv0.15.Theamplierorloop

mayrequireattention.

Thecongurationpageoftheampliercanbereachedbyclickingthislink:T14-1ifyouareonthesamenetwork

domainastheamplier

ThesystemerrorspresentontheamplierwhenthisEmailwassentarelistedbelow:

------------------------------------

Errors have cleared. No faults at present

------------------------------------

Thecurrentsettingsoftheamplierarelistedbelow:

Input 1 level is -30.0dB

Input 2 level is -80.0dB

Current level is -12.0dB

MLCselectedis0

MLCcustomslope1is1.0dB/Oct

MLCchangefrequency1000Hz

MLCcustomslope2is1.0dB/Oct

ThemeasureloopparametersonchannelAare539mRand190uH

Theamplierhasbeenrunningfor8089millisecondssinceitlastrebooted

End of Email

TheEmailcanbesentwhenthedriverisrestarted,whenanerroroccursorperiodicallytomonitor

thestateoftheloopdriver.Thesesettingsareonlycontrolledthroughthewebinterface–there

is no menu on the front panel that alters these settings. The controls for the Email system can

befoundontheNetworkCongtabofthewebinterface.Seesection9Ethernetinterfaceofthis

manual for further information.

Ampetronic T14-1 Installation Handbook & User Guide Page 19

11. TROUBLESHOOTING

Incaseoferror,thewebsiteStatustabcolourwillchangeanderrormessageswillbedisplayedon

the Status page.

Startup test messages

DIAGNOSTICS IN PROGRESS Thismessageisdisplayedwhilststart-uptestsarebeing

performed. Not an error.

LOOPR<200mRFIXAND

RESTART

Thedrivermeasured<200mΩfortheloopimpedance.

Thisistoolowforthedriverandmustbexedbeforethe

driverwillnishthestart-updiagnostics.Switcho,xthe

fault and switch on again.

LOOP > 10R LOOP COULD CLIP Theloopisnotopencircuitbuthasaresistanceof>10Ω.

This is too high – the output will clip on signal peaks. This is

a warning and the driver will continue to operate.

HEATSINK TOO HOT PLS

SWITCH OFF

The heatsink is at a critical temperature and thermal

protectionhasactivatedatstartup.Switcho,xthefault

and switch on again.

OUT IDLE OVERCURRENT

OUT FUNC TEST HIGH

OVERCURRENT

Error in the internal circuitry of the driver. Please contact

Ampetronic technical support if any of these errors are

seen,quotingtheerrormessagetext.

Error messages during operation

OUTPUT OPEN CIRCUIT This message is displayed if the loop is disconnected whilst

the driver is operating (e.g. if the loop is cut). This is a

critical state and the output will not operate.

LOOP > 10R LOOP COULD CLIP Theloopisnotopencircuitbuthasaresistanceof>10Ω.

(Seenotesaboveforstartuperror)

POWERLIMIT-DERATED Thedriverisoverloadedandthedrivecurrenthasbeen

reduced

POWERLIMIT-SHUTDOWN The driver is seriously overloaded and the loop output has

beenshutdown

TEMPLIMIT-DERATED Theinternalheatsinkishotandthedrivercurrenthasbeen

reduced.

TEMPLIMIT-MUTED Theinternalheatsinkistoohotandtheoutputhasbeen

turnedo.

OUTPUT CLIPPING Thedriveroutputmaximumvoltageisbeingexceededand

theloopsignalisbeingclipped

OUTPUT CLIP - ATTENUATED Thedriveroutputmaximumvoltageisbeingexceededand

theloopsignalisbeingattenuatedtopreventclipping

Ampetronic T14-1 Installation Handbook & User GuidePage 20

Instability or high frequency noise

1. Itispossiblefortheloopcablestobegroundedunderfaultconditions,resultingininstability

whichmaysoundlikehighfrequencynoise,buzzorwhistling.Theresultsofthistypeoffault

areunpredictableandmayappearasanycombinationofthefrontpanelindicationerrors

2. Thisfaultiseasytodetermine.Simplyunplugtheloopcablesfromtheamplierandtestwitha

resistancemeterbetweeneitheroftheloopwiresandagoodearthpoint.Thereshouldbean

innitelyhigh(opencircuit)reading.Anyreadingindicatesafailureoftheloopcableinsulation

andyouwillneedtoeitherrepairorreplacetheloopcable.

3. Instabilitycanbecausedbyusingpoorqualitysignalcables,longunbalanced(2-wire)signal

runstotheinputs(includingelsewhereintheaudiosystem),orbyrunninginputcablesin

closeproximitywiththeloopwireoveranappreciabledistance(>5m).Loopampliersare

capableofdeliveringhighcurrentsataudiofrequencies.Iftheloopcablesareruncloseto

sensitivesignalcablesitmaybepossibletoinduceasignalbackintotheinputoftheamplier

causingfeedback.Cablerunsandloopwiresshouldbekeptwellapartfromeachother.To

avoid interference maintain a separation of at least 300mm.

4. InstabilitycancausethedrivertorunhotandmayresultintheSTATUSLEDashingREDand

thePROTECTLEDashingREDslowly.

Interference

1. Hum, Buzz or tones heard through a loop receiver: Backgroundmagneticeldsor

interferencemaybepresentinanylocationandareunlikelytobecausedbyortransmittedby

theloopsystem.Monitorthiswithaloopreceiver(suchasanILR3).Iftheinterferenceisstill

presentwiththeloopsystemswitchedo,thenyouneedtolocateandeliminatethesourceof

theinterferencebeforeswitchingtheloopsystembackon.

2. Interference to other systems (typically video or audio):Magneticeldscaninduce

currents into any low impedance electrical path or loop. Audio or video systems with multiple

earths may experience pick up of the loop signal. Check entire sound system for evidence of

loopsignal(mostobviouswithatestsignal),andtracesourceofpickup.

3. Jagged lines or “hum bars” on a video picture: Under certain circumstances, the loop

signalmayappearasinterferenceinavideosignal.Thiscouldbeduetorunningunbalanced

analoguevideocablesincloseproximitytotheloopcable,oranearthloopinthevideo

system.Separatetheloopcablesfromthevideocablesorresolvetheearthlooptoreducethe

eect.

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Ampetronic T14-1Rail User guide

Brand: Ampetronic

Model: T14-1Rail

Category: Musical Equipment

Type: User guide

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Ampetronic T14-1Rail User guide

Ampetronic T14-1Rail User guide

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