Karel MS48IP Use and care manual

www.karel.com.tr
TECHNICAL REFERENCE AND INSTALLATION GUIDE
09/2010
TELEPHONE EXCHANGE

MS48IP
TECHNICALREFERENCE
AND
INSTALLATION GUIDE
September-2010

MS48IP- TTMK- Ver. AAB- 01.09.2010
KARELreservesthe righttomakemodificationsinproduct featuresspecified inthis
documentfordevelopmentandimprovementpurposeswithoutpriornotice.The actual
products maypossess characteristics differentfromthosethathavebeenmentioned
herein, duetosoftwareandhardwareversion differences.
Version Table
Software Version of MS48IP Date & Version of Guide
AAA 10.04.2010/AAA
AAA 01.09.2010/AAB

CAUTION!
Sincethe MS48IP exchangeis an electronic-basedsystem, it contains modules
that carryhigh voltages, whichcouldadverselyaffect environmental conditions. In
this regard, the requirements belowshouldbe fulfilledinorder foryour exchange
not tocauseanysituation harmful toyou or the environment:
The exchangemust notbe disassembledbyunauthorized
persons inanyway.
The coverofthe exchange cabinetshouldalwaysbekept
closed.
Priortohanging the exchange onthe wall, one must make
surethe screws areintact.
The ground cableconnectionofthe exchangemust definitely
be made.
Precautionsmust be takeninordertopreventanyharmful
substancesfromleaking orspilling intothe exchangeinany
way.
Failure infulfilling those requirementsmaycause fatal hazards!

DearFriend of KAREL,
Inordertomaintainsoundoperationofthe system, makesurethe requirements below
arefulfilled,whicharerelated tothe environmentinwhichthe exchange is tobe
installed.
¨Check the electricalinstallation ofthe premise:if you cannotbe certainthatit is
adequate,then haveaseparategrounding systeminstalledinordertoprotect the
systemfromthe effects ofthunderbolt orothersourcesofhighvoltage affecting
over lines or connectedperipheral units.
¨Haveyourexchangeinstalledon locationsthatarenotexposedtodirect sunlight
and nothumid,and thatareventilated well, withan environmentaltemperatureof
5-40oC. The roomshouldbewelllit. Yourexchange shouldnotbe exposed to
effects of dust, vibration, oil and water.
¨Devicesthatgeneratehigh frequencywaves(suchaswelding machines, office
equipmentsuchascomputers andair conditioners, TVsets, etc.)shouldnotbe in
the sameroomif possible,ortheyshouldbe atleast 3meters awayfromthe
exchange, otherwise.
¨Sincefrequentlyinterrupted mainssupplywouldaffect properoperationofthe
system, takecareinmaking the power connectionspecial for the system.
KAREL
LEGALWARNING!
Karel cannot be heldresponsibleforanyloss infunction,data, privacy, any
damagethat mayoccuron the network orillegal use ofthenetwork causedby
anyinternal orexternal attack whichcomes throughthedatanetwork
formed/configuredtouse thefacilities orapplicationsofthepurchases Karel
system.
Customer, bypurchasing theequipment, declares that thewarningaboveisread
and accepted.

PREFACE
The chapters inthis guidehavebeencreatedinordertopresentdetailed technical
information topeoplewhoneed hardware-basedtechnicalinformation aboutthe
MS48IP exchange,tointroducethe peripheralunits, and togiveinformation regarding
installationofthe exchange,aswellasregardingthe thingstobe done totroubleshoot
simpleproblems. Bythis way,one couldgrasptheabilitiesofthe MS48IP exchange,
howit is tobe operatedinaccordancewithcustomerdemands, andthingsthatare
supposedbe done inorder tooperateit infull performance.
The firstthree chapters -“TechnicalReference,Softwareand TechnicalSpecifications”
–Thesecontaintechnicalinformationabouthardwareandsoftwarestructuresofthe
exchange.Information inthesechapters, forwhichknowledge inmechanics, electricity
and electronics maybe prerequisite,aims tointroducethestructureofthe exchange.
Presentation ofthe informationinthis chapterfollowsapathfromthe wholeofthe
exchangedowntothe details of the parts. At the end,technicaldatahavebeen listed in
atableasasummary.
The fourthchapter–“Installation”–This chaptertells aboutthe installationmethodsof
the exchangewithrespect toits capacity.This chaptermust definitelyberead before
the installation bythe personnelwho aretoperform the installationof the exchange.
The fifthchapter–“PeripheralUnits” –This chaptergivesbriefinformationaboutthe
peripheraldevices, whichwouldenrichfunctionsofthe exchange and whichcouldbe
utilizedtomeet dailycommunication needs of customers morecomprehensively.
The Last chapter–“Troubleshooting”–This is achapterthatrecommendssimple
solution methodstoproblems thatcouldoccurduring operationofthe exchange.The
recommendationsthathavebeen specified inthis chaptershall beappliedbythe
authorized personnel only.
Best regards,
KARELINC.

CONTENTS
TECHNICALREFERENCE .............................................................................. 1
THE MB48IP MOTHERBOARD & EXP48 EXPANSIONMODULES............ 3
THE MB48IP MOTHERBOARD................................................................. 3
EXP48IP VOIP MODULE........................................................................... 6
THE EXP48 (0/16)EXPANSIONMODULE............................................... 9
THE EXP48 (2/6)EXPANSIONMODULE................................................. 9
THE EXP48 (4/12)EXPANSIONMODULE............................................. 11
VOIP48 4CHANNELDSP EXPANSIONBOARD................................... 11
VOIP48 8CHANNELDSP EXPANSIONBOARD................................... 12
SPEECH CHANNELSTRUCTURE ............................................................ 12
THE NUMBERINGPLAN ............................................................................ 12
THE POWERSUPPLY OF THE SYSTEM.................................................. 14
THE POWERSUPPLY MODULE -SPS48 .............................................. 15
POWERFAILURE TRANSFERSTATIONRELAYS............................... 18
SOFTWARE.................................................................................................... 19
MEDIA GATEWAY FACILITIES .................................................................. 20
TECHNICALSPECIFICATIONS .................................................................... 22
INSTALLATIONOF THE SYSTEM................................................................ 25
HOWTO MOUNTTHE EXCHANGE ONTHE WALL................................. 25
PREPARATION ....................................................................................... 25
APPLICATION ......................................................................................... 26
MB48IP MOTHERBOARD........................................................................... 28
SPS48 POWERSUPPLY MODULE ........................................................... 30
BATTERY CONNECTION ....................................................................... 33
HOWTO INSTALLTHE EXPANSIONMODULES ..................................... 34
INSTALLINGANEXPANSIONCARD ON THE MOTHERBOARD:........ 35
INSTALLINGA SECONDEXPANSIONMODULE ONTO THE FIRST
ONE:......................................................................................................... 36
INSTALLINGTHE EXP48IP VOIP MODULE: ......................................... 37
FIXINGTHE EXPANSIONMODULES: ................................................... 39
GROUNDINGINFORMATION .................................................................... 40
OTHERCONNECTIONS............................................................................. 42
EXTERNALMUSICSOURCE CONNECTION........................................ 42
EXTERNALRELAY CONNECTION ........................................................ 42
DOORPHONE CONNECTION ............................................................... 42
CABLING ..................................................................................................... 43
MS48IP PERIPHERALUNITS........................................................................ 44
TROUBLESHOOTING.................................................................................... 46

1
TECHNICAL REFERENCE
The MS48IP exchangeis amodularsystem, whichhasIP technologyintegrated,with
bothanalog and IP ports. The system, bywayofits modularand hybridstructure,
supports 4-24 trunks and 12-64 extensions. The systemsupports SIP protocolon the
IP side.
The exchangebasic capacityis 8linesand20 extensionsand can beincreasedto
highcapacitiesbyinstallingexpansion cardsbetween theMS48IP motherboardand
the EXP48IP VoIP card.Besides, thanks toan additionalslotforthe IP expansion,the
system IP channel capacitycan alsobe increased.
EXP48IP VoIP Cardis alsoequipped withthe capabilityofbothreceiving the number
information pertaining tothe calling party(CallerID) on calls comingoverlinesand
distributing thatinformation,aswellasthe numberinformationpertaining tothe calling
extension oninternalcalls, tothe telephonesofthe extensionswiththe CallerID
feature.Thanks tothatcard,the extensionswithSMS-compatible(Short Message
Service) telephones can send and receiveSMS messages over analoglines.
The MS48IP system basicallyconsists of theseparts:
ØCBN48IP Plastic Cabinet
ØSPS48 Power SupplyModule
ØPWT48 Power Transformer
ØRNT48 Ringer Transformer
ØMB48IP Motherboard
ØEXP48 CapacityExpansion Modules
ØEXP48IP VoIP Module
ØVoIP48 DSP Expansion Modules
The basic capacityofthe systemis 4analog trunkand 4IP trunk, 12 analog
extensionsand 8IP extensions, butthatcapacitycan be increased to84 ports intotal
byexpansion modules. Expansion moduleswithdifferentcapacitiesandtechnologies
areavailablefor that:
·The EXP48 (2/6) Module(At most 1of them can be installed.)
·The EXP48 (4/12) Module(At most 2of them can be installed.)
·The EXP48 (0/16) Module(At most 1of them can be installed.)
·VOIP48 4Channel DSP Expansion Module(At most 1of them can be installed.)*
·VOIP48 8Channel DSP Expansion Module(At most 1of them can be installed.)*
*Onlyone DSP expansion modulecan beadd tothesystem.

2
The appearanceand cabinet structureof the system areas inthe following figures:
Figure–1
Figure- 2
The CBN48IP plastic cabinetprovidesthe systemwithaflexibleand ergonomic
structureforeasyconnection.Thanks toits specialdesign,its structuremakesit
possibletomountthe exchange onthe wall, aswellastoholdtheparts ofthe
exchangeand facilitateproper cabling.

3
THEMB48IPMOTHERBOARD&EXP48 EXPANSION
MODULES
THE MB48IPMOTHERBOARD
The MB48IP motherboardis the cardthatcontainsall the generalcontrolcircuits that
constitutethe basis of the exchange. The followingcircuits arepresent onit:
·Microprocessor and registers that maintaincontrol of the entireexchange
·Interfaceconnectioncircuitry
·DTMFreceivers
·DTMFgenerators
·Switching circuit
·Extensioncircuits
·Linecircuits
The diagram belowshows thepositioning of thosecircuits on the motherboard:
Ext. 2 Ext. 1 Line 4 Line 3 Line 2 Line 1
CPU & UtilityCircuitry Switching circuits Ext. 3
The MS48IPMotherboard
Ext. 4 Ext. 5 Ext. 6 Ext. 7 Ext. 8 Ext. 9 Ext. 10 Ext. 11 Ext. 12
Figure-3
At most twoanalogexpansion cardscan beinstalledon the MB48IP motherboard
whennecessary,inorder toincreasethe capacity:
ØEXP48 (2/6): The expansion cardwith2lines and 6extensions
ØEXP48 (4/12): The expansioncardwith4lines and12 extensions
ØEXP48 (0/16): The expansioncardwith16 extensions
At most twoEXP48 expansioncardscanbe pluggedinthe motherboardofthe
MS48IP exchange,soasoneofthe cardsbeingon top ofthe other. AnMS48IP
exchangecan include twoEXP48(4/12)expansioncards. As forthe EXP48 (0/16)
expansionmodule,onlyonecan beinstalled.The list belowshowsvariousextension
and line capacities that can be achieved byinstalling various expansion cards.

4
Lnes EXtension
428
18
634
24
840
10 30
12 36
The dimensions of the MB48IP are19 cm x35 cm and its weight is 0.75 kg.
The illustrationsbelowshowthe locationsofthe entireconnectors thatarepresenton
the motherboard(Figure-4andFigure-5):
a. SPS48 Power Supply f. External RelayConnector
b. KTSConnector g. External Music SourceConnector
c. KY16 Connector h. Expansion boardConnectors
d. Doorphone Connector i. AnalogExtension Connectors
e. EXP48IP VoIP DataConnector j. AnalogLine Connectors
Figure-4

5
Figure-5
THE EXP48IP VOIP DATA CONNECTOR
The pin-outs for the connector areas follows:
Pin Signal Pin Signal
1Ground 3 RXD
2TXD 4 Busy
THE DIA CONNECTOR
The pinouts for the DIA connector areas follows:
Pin Signal Pin Signal
1DIA 3 +5VDC
2 Ground 4 Ringer
EXTERNAL MUSIC CONNECTION
Anymusic source(radio,tape player, CD player, etc.) can be connected tothe
externalmusic sourceconnection,whichis an optionforthe internalmusic chipon the
motherboard,andwhen alineis parkedorputonholdinthe system, music fromthat
sourcecanbe transmitted tothatlineasbackground music. Thatconnection is made
throughthe 2-pinconnector(the rightmost twopinsofthe 4-pinmusic /externalrelay
connector) that is on the MS48IP motherboard.

6
EXTERNAL RELAY CONNECTION
Arelayis availableon the motherboardforcontrolling severalexternaldevices. That
relayis capableofallowing2Acurrentover250VAC /-24 VDC. Bythis relay,it is
possibletocontroladooropener, an externalmusic source,the external
announcementsystemoranexternalringer, accordingtothe waythe systemis
programmed.Connection tothe externalrelayis made through the 2-pinconnector
(the leftmost twopinsofthe 4-pinmusic /externalrelayconnector) thatis on the
MS48IP motherboard.Whichoneofthe devicesmentioned abovetherelayis tobe
employed for controlling is determinedbyprogramming.
EXP48IPVOIPMODULE
The EXP48IP VoIP Moduleis acardwhichcan be installed directlyon the system
motherboardoranyofthe analog expansioncards. It functionsasthe IP serverofthe
systemaswell asthe CallerID moduleofthe system. The moduleis mainlyformedup
of twocards:
1)EXP48IP MediaGatewayCard
2)EXP48IP Mainboard
The twocards areconnected toeachother toform the VoIP module.
The EXP48IP VoIP modulehas the following functional blocks:
·Microprocessorand the memoryelements usedforthe IP functionalityofthe
system.
·Anethernet switch
·FSK receiver (4channels)
·FSK generator (8channels)
·IP extensions
·IP trunks
·IP MediaGateway(MGW–AC494series DSP circuit)
The EXP48IP Mainboardalsohasan SO-DIMM type connectorwhichis used toinstall
DSP expansioncardonthe system.

7
The functional block layout of the cards is shownbelow:
Figure–6

8
The connectors on themoduleareshownbelow:
1) EXP48IP MGWcardconnector 4) Ethernet connector
2) EXP48IP VoIP Dataconnector 5) DSP Expansionmoduleconnector
3) KTSconnectors 6) Basecardconnectors

9
THE EXP48 (0/16) EXPANSIONMODULE
The EXP48 (0/16)ExpansionModuleis used toadd 16analog extensionstothe
system. Support circuits and switchingcircuits areavailableon it, aswell asextension
circuits. The diagram belowshowspositions of thosecircuits on themodule.
Figure- 8
The dimensions of the EXP48 (0/16) are19cm x23cm, and its weight is 0.4kg.
THE EXP48 (2/6) EXPANSIONMODULE
The EXP48 (2/6)Expansion Moduleis usedtoadd2analoglinesand6analog
extensionstothe system. Support circuits andswitching circuits areavailableon it, as
well asextensionand line circuits. The diagram belowshows positionsofthosecircuits
on the module.

10
Figure- 9
The dimensions of the EXP48 (2/6) are14,5cm x16,5cm, andit weighs 0.3kg.

11
THE EXP48 (4/12) EXPANSIONMODULE
The EXP48 (4/12)ExpansionModuleis used toadd 4analog linesand 12analog
extensionstothe system. Support circuits andswitching circuits areavailableon it, as
well asextensionand line circuits. The diagram belowshows positionsofthosecircuits
on the module.
Figure- 10
The dimensions of the EXP48 (4/12) are19cm x26cm, and it weighs 0.6kg.
VOIP48 4CHANNELDSP EXPANSIONBOARD
The VoIP48 4channel DSP expansion boardis used toadd4IP MGWchannels tothe
system. It has AC498DSP circuit on it.

12
VOIP48 8CHANNELDSP EXPANSIONBOARD
The VoIP48 8channel DSP expansion boardis used toadd8IP MGWchannels tothe
system. It has AC498DSP circuit on it.
SPEECH CHANNELSTRUCTURE
MS48IP systemhas12 TDM speechchannels forallextensionsand trunks. 10 of
thesechannels canbe used foroutgoingandincomingcalls and twochannels are
reservedfor incoming calls only.
Togetherwiththe EXP48IP VoIP module,the systemmayhaveup to12 IP MGW
channels. The basic capacityis 4and the channelnumbercan beincreasedto8by
using4channelDSP expansion moduleorto12 byusing8channelDSP expansion
module.The IP MGWchannelnumberis directlyrelated tothe IP extensionand trunk
capacityof the system.
The IP extensionandtrunknumbers ofthe systemareflexibleandcan bedefined by
programmingthe IP MGWchannels ofthe systemaccordingly.The tablebelowshows
the maximum numberof IP ports withrespect tothe system configuration:
EXP48IP VoIP
Card
DSP Expansion
Board
Number of IP
extensions
Number of IP
trunks
+ - 8 4
+4channel 16 8
+ 8 channel 24 12
THENUMBERING PLAN
The systemcomeswithafixed numbering plan whichcan then be changed byflexible
numberingprograms ofthe system. As perthe default numbering plan,the extension
numbers areofthree digits and starts from111 whereasthe trunknumbers areoftwo
digits and start from 01.
The systemautomaticallysets the default numberingplanwithrespect tothe installed
capacityof the system.