Karel DSS25 Use and care manual

02/2010
DIRECT STATION SELECT MODULE
TECHNICAL REFERENCE AND USER GUIDE

DIRECT STATION
SELECT MODULE
TECHNICAL
REFERENCE
AND
USER GUIDE
FEBRUARY–2010

DSS25–28 TTKK REV–AAA / 08.02.2010
KARELreservesthe righttomakemodificationsinproduct featuresmentioned
inthis documentfordevelopmentand improvementpurposes, withoutprior
notice.Individualproducts maypossess characteristics differentfromthosethat
havebeenmentionedinthis document, due totheir differencesinsoftwareand
hardwareversions.
Version Table
Software Version Date/Version of Guide
AAA 08.02.2010/AAA

DSS25-28

ISSUESTO PAY ATTENTIONTO
•Readthis guide carefullybeforeyouputyourdeviceintouseandkeepit
for later reference.
•Anymistakewiththeconnectionsinyourdevicemaydamagethe device
oryourexchange.Especiallytheconnection tothe exchange must be
made bythe Authorized TechnicalServices. The explanationsabout
connectionsinthe user’s guide havebeenincluded togiveinformation
only.
•Donotmakeanyconnection otherthan the CO connection tothe KAREL
telephone branchexchanges.
•Thereis no part thatyoucan repair ormaintaininyourdevice;therefore
call the authorized technical serviceincaseof anymalfunction.
•Keep your deviceawayfrom direct sunlight.
•Donot let anyliquidsubstancespill on your device.
•Dothe exteriorcleaning ofyourdevicewithaslightlymoistenedpieceof
cloth.
•Donot applyanychemicals for cleaning.
•Pleasecall yourauthorized resellerincaseyouwouldliketochangethe
placeofyour device. Useits ownpacking tocarryit.
•Pleasedo notuseexteriorsignalforthe test operationsormaintenance.
Anysignalwhichis used externallymaydamage your device.

PREFACE
The chapters inthis guidehavebeenprepared inordertopresentdetailed
technicalinformationtopeoplewho needtechnical-introduction-based
information aboutthe DigitalDSS25-28 Direct Station Select Module,and in
ordertogiveinformation aboutprogramminganduseofthis module.Bythis
way,one couldunderstandabilitiesofthe DigitalDirect Station Select Module,
howit is tobe operatedinaccordancewithcustomerdemandsand thingsthat
shouldbedoneinorder tooperatethe panes infull performance.
The modulehasbeen explainedasDSS withinthe guide,forthe sakeof
descriptivesimplicity.
The firstchapter-“TechnicalIntroduction”–It containsbasic information about
the structureof the Digital DSS25-28 Direct Station Select Module.
The second chapter–“Installation”–The methodstobe followed forthe
installationofthe DSS25-28 areexplained.This chaptermust definitelybe read
beforethe installationbythe personnelwho aretoperform the installation.
The thirdchapter–“Basic Structure”–This chapterexplainsthethingstobe
doneafterthe DSS25-28 Moduleis programmed.The chapteralsoincludes
information about useof the programmed keys.
The forthchapter–“KeyProgramming”–This chaptergivesbriefinformation
aboutthe softwarefeaturesthatwillenrichfunctionsofthe DigitalDSS25-28
Direct Station Select Moduleand thatcouldbe applied tomeetdaily
communicationneeds of customers morecomprehensively.
Best Regards,
KAREL

CONTENTS
TECHNICALFEATURES ..............................................................................1
INTRODUCTION .........................................................................................1
COMPATIBILITY..........................................................................................1
PARTS LISTONDELIVERY.....................................................................2
BASICFEATURES......................................................................................2
TECHNICALSPECIFICATIONS...............................................................2
GENERALAPPEARANCE.........................................................................3
INSTALLATION...............................................................................................4
BASICSTRUCTURE......................................................................................5
KEYPAD........................................................................................................ 5
LEDSTATUS............................................................................................... 5
UTILIZATION................................................................................................5
KEY PROGRAMMING ...................................................................................6
EXTENSION.....................................................................................................6
LINE ................................................................................................................ 6
EXECUTIVE KEY..............................................................................................7
PRIVATE POOL ...............................................................................................7
COMMON POOL ..............................................................................................7
FEATURE......................................................................................................... 8
FEATURE CODE.............................................................................................. 8

DSS25–28Direct StationSelect Module
1
TECHNICAL FEATURES
INTRODUCTION
DSS25-28 is the Direct Station Select ModuleofKARELanddesigned forST26,ST30
digitaltelephoneswithinthecontextofthe KARELDS Seriesexchanges. The aim of
this product is tomakeeasierforusertoaccess otherextensions, linesand some
featuresofthe exchange and alsousercanmonitorthe situation ofexchangesand
lines.
The digitalDSS25-28moduleenablestheusers toperform the functionaloperations,
aswell asproviding monitoring ofthe statusesoffunctionsthathavebeen assigned to
the keys, byasinglekeythroughits special-purposekeys and displayonit.
The DigitalDSS25-28Direct StationSelect Moduleconsists ofakeypadonly.The
keypadofthe DSS25-28 moduleconsists of28 programmable(14x2matrix)special-
purposekeysandthereis aLED foreachkey.The functionsthathavebeenassigned
tothe keyscanbe monitored through theLEDs onit. All ofthose28 keysareusedfor
assigningthe access codesand thereis no needtomakeanyprogrammingthrough
the DSS25-28 module.
COMPATIBILITY
The DigitalDSS25-28Direct StationSelect Moduleis compatiblewiththe entirerange
ofDS SeriesSystems. HoweverDSS25-28 moduleshouldbe used onlywithST26 and
ST30 Digital TelephoneSets.
Inorder tosupplythe continuityof regular operation, the hardwareversions ofthe cards
and thatwill beconnected tothe DSS25-28DigitalDirect StationSelect Moduleshould
be as the followings;
- The hardwareversionofEX200 (0/16U) DigitalExtension Moduleshouldbe ABF
or better,
- The hardwareversionofEX200 (0/8U) DigitalExtensionModuleshouldbeBAFor
better,

DSS25–28Direct StationSelect Module
2
PARTSLIST ON DELIVERY
Parts that comewithinthe packageof the Direct Station Select Module:
- DSS25-28 Direct Station Select Module
- Technical ReferenceandUser GuideCD
- AccessoryPackage for Telephone Connection:
- ConsoleConnectionCable
- Metal ConnectionPiece
- Fixing (Connection) Screws (4Units)
- Mounting Template
BASIC FEATURES
-The communicationbetweenSTdigitalphone and DSS moduleis an
asynchronous serial channel communication.
-DSS moduleis used the outputofthe digitalextension ofthe DS SeriesSystems
and directlyconnect tothe related STdigital phone set.
-Two-wirestructureis employed forthe communicationbetweenthe DSS and ST
phone set.
-Thereis no needtospecificallyintroducethe DSS moduletothe systemsothe
terminalnumbersetting is notrequired.DSS moduledirectlycommunicateswith
the system over the STdigital phone.
-All requiredprogramming forthe digitalDSS modulearemade throughthe
connected STdigital phoneand all settings aresavedtothis STphone.
TECHNICALSPECIFICATIONS
Weight: 440 g
Dimensions: Width: 112mm, Length: 229mm, Height: 52mm
OperationTemperature: 0-40 °C
Storage Temperature: -20+60 °C
Humidity: 10-%80

DSS25–28Direct StationSelect Module
3
GENERALAPPEARANCE