Blonder tongue FOCN Series User manual

INSTRUCTION MANUAL
OneJakeBrownRoad
OldBridge,NJ08857-1000USA
(800)523-6049•(732)679-4000•FAX:(732)679-4353
www.blondertongue.com
©2010BlonderTongueLaboratories,Inc.Allrightsreserved.Specificationsaresubjecttochangewithoutnotice.Trademarksarethepropertyoftheirrespectiveowner.
FOCN Series
FiberOpticCompactNode
 Model StockNo.
FOCN-S4S-201 7420A-1
FOCN-S4S-204 7420A-4
FOCN-S4S-205 7420A-5
Status Date DocumentNo. IssueNo. Author
Active September28,2010 651215000C 3 KK
Obsolete May15,2009 651215000B 2 KK

2 FOCN
InstructionManual
Safety Precautions
Theopticalemissionsfromtheunitsarelaser-basedClassIIIb,andmaypresenteyehazardsifimproperlyused.NEVER USE
ANY KIND OF OPTICAL INSTRUMENT TO VIEW THE OPTICAL OUTPUT OF THE UNIT.
Asalways,becarefulwhenworkingwithopticalfibers.Fiberscancausepainfulinjuryiftheypenetratetheskin.
Laser Safety Procedures
ALWAYS readtheproductdatasheetandthelasersafetylabelbeforepoweringtheproduct.Notetheoperatingwavelength,
opticaloutputpower,andsafetyclassifications.
Ifsafetygogglesorothereyeprotectionareused,becertainthattheprotectioniseffectiveatthewavelength(s)emittedby
thedeviceundertestBEFORE applyingpower.
ALWAYSconnectafibertotheoutputofthedeviceBEFOREpowerisapplied.Powershouldneverbeappliedwithoutan
attachedfiberoutput.Ifthedevicehasaconnectoroutput,aconnectorshouldbeattachedthatis
connectedtoafiber.Thisensuresthatalllightisconfinedwithinthefiberwaveguide,virtuallyeliminatingallpotential
hazard.
NEVER look in the end of a fiber to see if light is coming out. NEVER! Mostfiberopticlaserwavelengths(1310 nmand1550
nm)aretotallyinvisibletotheunaidedeyeandwillcausepermanentdamage.Shorterwavelengthlasers(e.g.780nm)are
visibleandareverydamaging.Alwaysuseinstruments,suchasanopticalpowermeter,toverifylightoutput.
NEVER, NEVER, NEVERlookintotheendofafiberonapowerdevicewithANYsortofmagnifyingdevice.
Thisincludesmicroscopes,eyeloupes,andmagnifyingglasses.ThisWILLcausepermanent,irreversibleburnonyourretina.
Alwaysdoublecheckthatpowerisdisconnectedbeforeusingsuchdevices.Ifpossible,completelydisconnecttheunitfrom
anypowersource.
Ifyouhavequestionsaboutlasersafetyprocedures,pleasecallBlonderTonguebeforepoweringyourproduct.
LasersafetyclassesfortheFOCN:
Storing the Unit
Ifaunitistobeoutofuseforanextendedperiodoftime,thefollowingstepsshouldbetakentoensurethe
preservationoftheunit:
 1. Thestoragetemperaturerangeis-20°Cto+70°C.
 2. Alowhumidityenvironmentispreferableforlongtermstorage.
 3. Allconnectorsshouldbecoveredwithactivedevicereceptaclecaps.
INVISIBLE LASER RADIATION
EMITTED FROM END OF
FIBER OR CONNECTOR
AVOID EXPOSURE TO BEAM
Do not view beam directly with
optical instruments
INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR
AVOID EXPOSURE TO BEAM
Class IIIB Laser Product IEC-60625 1193 Max. Output 30 mW Wavelength: 1.3µm
Wavelength: 1.3µm
Max. Output: 30 mW
Class III Laser Product
AVOID EXPOSURE
INVISIBLE LASER
RADIATION EMMISSIONS
Warning: The optical emissions from the units are
laser-based and present eye
hazards. Follow all safety precautions
 Class WavelengthRange OpticalPowerAccessionLimits
 IIIb 180nmto400nm Varieswithandexposuretime.
  400nmto106nm 0.5Watt
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER FROM THIS UNIT.
NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

3
FOCN
InstructionManual
Description
TheBlonderTongueFOCNisahighquality,costeffective,bidirectionalCATVnodefeaturingthelatestopticalreceiver
technology.Itisdesignedtooperatewithopticalinputlevelsrangingfrom-8dBmto+2dBm.TheFOCNhasaforward
bandwidthof54-1000MHzand5-42MHzReturnwithOptionalReturnLaserTransmitters.
FOCN Model Table
Model Stock No. Description
FOCN-S4S-201 7420-1 RxOnly(NoReturn)
FOCN-S4S-204 7420-4 Rxwith1310nm,4.8dBmDFBLaser
FOCN-S4S-205 7420-5 Rxwith1550nm,4.0dBmDFBLaser
TheFOCNcomeswithanACadapterwhichoperatesonaninputof100-240VAC50/60Hzandanoutputof12VDCat
1.25Amps.
Installation/Environmental Considerations
TheFOCNisspecifiedtooperatefrom-10°Cto+55°C.Itshouldbemountedinanadequatelyventilatedarea.Fora
longerlifespan,itshouldnotbeoperatedattheupperlimitofthetemperaturerange.Installationinwetareasorareas
ofextremelyhighhumidityshouldbeavoided.TheFOCNshouldnotbeinstalledinareasthatareaccessibletochildren.
TheFOCNmaybeinstalledandoperatedinanypositiononaflatsurface.Theunithastwoslotsinthebottomplateto
accommodatemountinghardware.Theunitshouldbemountedbyslidingoveronescrewandthentighteningtheother
screw.Ifmountingrequiresawoodscrew,use#6or#8(maximum)pan-headsheetmetalscrews.Thesearecommonly
availableathardwarestores.Ifmountingwithamachinescrew(totappedholes),use6-32pan-headscrews.
Optical Connectors
TheopticalconnectorsareavailableinSC/APCtypeterminations.
Powering
Applyonly+12VDCtoeitherthe“F”connectorclosesttothetopcoveroftheunit,orthroughapowerinserterinseries
withtheMainRFoutputconnector,the“F”connectorclosesttotheoutsideedgeofthehousing.
NOTE:thecenterconductorofthe“F”connectoris“+”andtheshieldisground.

4 FOCN
InstructionManual
Forward Optical Receivers
RF Output
FrequencyRange(+/-1.0dB):54-1000MHz(NTSC)
OutputLevel(@-1dBmopticalinput):*
 +28dBmV(@550MHz)
ReturnLoss:14dBmin.,16dBtypical
Impedance:75Ohm
CNR(@0dBmopticalinput):*>53dB
CSO(@-1dBmopticalinput):*>63dBc
CTB(@-1dBmopticalinput):*>65dBc
Slope:0dB
RFTestPoint(forward)-20dB;TypeF
Optical
Wavelength:1280-1610nm
OpticalInputPowerRange:+2dBmto-8dBm
ReturnLoss:>50dBwithAPCconnector
OpticalInputPowerTestPoint:
 1V/mW+/-0.1V
OpticalConnector:SC/APC,8°APC
 *NOTE:Typicallevels@0dBslopeto1000MHzwith8dBm
opticaltransmitterwithOMI@3.2%,&77NTSCchannel
loadingto550MHz&digitalloadingto1000MHz(-6dB
belowanalog).
Electrical & Mechanical
Dimensions:3”Hx6”Dx2.1”H
Weight:12oz.
OperatingTemperatureRange:
 -10to+55˚C(temperatureatthemountingplate)
EnclosureIPRating:IP20
Powering:+12VDC
 (viaexternalPowerSupply(included))
DCRipple:<50mV
PowerDissipation(withreturnTX):<7W
Return Optical Transmitters
Specifications
F-P & DFB Versions RF Input
FrequencyRange:(+/-1.0dB)5-42MHz(NTSC)
RFTestPoint(return):-20dB(external);TypeF
ReturnLoss(withReturnTXInstalled):
 >16dBwithintheReturnBand
ReturnPathNPR:15dBmin.ofNPRRange
 FP:37dBNPRThreshold
 DFB:41dBNPRThreshold
Optical
OpticalOutput:
 DFB=4.8dBm(3mW)@1310nm
 DFB=4.0dBm(2.5mW)@1550nm
ReturnLoss:>50dBwithAPCconnector
OpticalConnectorSC/APC,8°APC

5
FOCN
InstructionManual
Operational Setup – Receiver (Forward Path)
TheFOCNopticalreceiverasthelastcomponentinaspecificopticallinkwillprovidecarrier-to-noiseperformanceand
anRFoutputlevelthatisdependentonseveralparameters.TheRFinputleveltothesourceopticaltransmitterandthe
opticalinputleveltotheFOCNbasicallydeterminethelinkperformance.
Boththelasermodulationandthereceiveroutputlevelarebasicallylimitedbytotalpower.TheRFinputleveltoany
opticaltransmitterisdependentonthenumberofchannelsbeingtransmitted.Asthenumberofcarriedchannelsis
lowered,theRFinputleveltothetransmittercanberaised.ThisresultsinincreasedRFlevelsattheFOCNreceiver.This
improvesthecarrier-to-noiseratiooverthelink.Linksshouldbedesignedandtransmittersshouldbesetupusingvalues
thatrepresentthemaximumnumberofchannelslikelytobecarried.
Thefollowingchartassumesapproximately77channelsfrom55MHzto550MHzanddigitalloadingfrom550MHzto
1000MHzat–6dBbelowanalog.TheRFlevelsaremeasuredat547.25MHz.
Althoughthenodewilloperateatopticalinputlevelsashighas+2dBm,thereislittleimprovementintheC/
Nperformanceofthenodeatopticalinputlevelsabove0dBm.Foroptimumdistortionperformanceitisrecommended
thattheopticalinputtothenodebekeptatorbelow0dBm.TheFOCN'sRFoutputisdirectlyproportionatetothe
opticalinputlevel.Ifloweroutputisdesired,theunitshouldbeloweredbyaddinganin-linepadtotheRFoutput
toreducetheoutputlevel.ThiswillmaintainoptimumC/Nperformance.ThiswillalsoreducetheOMIofthereturn
transmitterifsoequipped.
ThefollowingchartshowstheapproximateC/Nperformanceatvariousinputlevelsandchannelloading.
Thisperformancecanvaryconsiderablydependinguponfiberandlaserperformancesoitispresentedas
adesignaidonly.
Optical Received Approx. Forward Approx. RF
Input Level Power @ T.P T.P. Level Output Level
 -8dBm .16V -6dBmV 14dBmV
 -6dBm .25V -2dBmV 18dBmV
 -4dBm .40V 2dBmV 22dBmV
 -2dBm .63V 6dBmV 26dBmV
 0dBm 1.0V 10dBmV 30dBmV
 +2dBm 1.58V 14dBmV 34dBmV

6 FOCN
InstructionManual
Internal Adjustments
TheFOCNreceiverhastwouseradjustmentsinsidetheunit.OneisusedtochangetheForwardReceiveleveltestpoint
calibrationbetween1310nmand1550nmopticalinputranges.TheotheristosettheOMIofthereturnbandtransmit-
ter,(ifequipped)thiswillbediscussedlateron.Theunitshouldnotbeoperatedforextendedperiodswiththetopcover
removed.ThisisbecauseofRFingressandcontaminationfromdirtorotherobjects.Whenreplacingthetopcover,be
suretofirmlytightenallthumbscrews.RFingressoroscillationcanbecausedbyloosescrews.
Thelocationsoftheinternaladjustmentsareshowninthefollowingdiagram.
Return Transmitter Setup
ThespecificationforthereturnbandtransmitterRFinputlevelis-58dBmV/Hz(measuredatFOCNRFOutPort).This
valueoperatesthesystematNPRthreshold.TheFOCNhasanadjustableattenuatorinthereturnpath.Alsoincluded
isa-20dBtestpointinthereturnpath.Thesinglecarrierequivalentof-57dBmV/Hzis+9dBmV.Thereturnpadmust
beadjustedtosetthecarrierto+9dBmVactualaftertheattenuator.Withatestcarrierpresentattheport(+19dBmV
max),measureitslevelatthereturn-20dBtestpoint.Adjustthepadfora-20dBtestpointreadingof-11dBmVreturn
input.
External Test Points
TheFOCNhasthreeexternaltestpoints.Thereceived“OpticalPower”testpointiscalibratedat1VpermW@1310
nm,itshouldbemeasuredwithahighimpedancevoltmeter.Thistestpointisforlongtermmonitoringpurposesas
wellasinitialsetup.Theopticalpowershouldbemeasuredwithapowermeteratthetimeofinstallation.Theinput
testpointiscalibratedatthefactoryat1310nm.Thevalueat1550nmmaybeoffby15%duetodiodevariations.The
inputtestpointreadingwillbeconsiderablyoffiftheinputwavelengthis1550nmandtheinternaljumperhasnot
beenchanged.Thejumperislocatedinsidetheunitnexttothereceiveleveltestpointasshownabove.Theposition
closesttothetestpointisfor1310nm,andthepositionfartherfromthetestpointisfor1550nm.
TheForwardTestPointis-20dBfromtheRFoutputofthereceiver.IftheRFoutis+28dBmV,thenthetestpointshould
beapproximately+8dBmV.
TheReturnTestPointis-20dBfromtheRFinputgoingtothereturntransmitter.Optimalinputshouldbe+14dBmV,so
thetestpointshouldread-6dBmV.

7
FOCN
InstructionManual
System Setup & Trouble Shooting
FiberLossat1310nmis0.330dBperkilometer,and1550is0.188dBperkilometer.Usingthisformula,ifthefiberrun
is6kilometers(3.73miles),thena2dBmtransmitterisrequiredforthedistance.Iftheforwardbandisbeingsplit,then
theadditionallossmustbeaccountedfor.Afibersplittergenerallysplitsthesignalequallybetweeneachoutput.Ifthe
forwardpathistobesplit4ways,thenatransmitterwithanoutputpowerof8dBmwillberequiredtotravelthe6
kilometers.Ifthelinkscomingoutofthesplitteraredifferentlengths,thenbesuretohaveenoughtransmittingpower
toreachthereceiverwiththelongestlink.Thosewithshorterlinkscanbeattenuatedtolowerthesignaltoalevelthe
receivercanuse.Tobesurethereceiverisinthecorrectrange,usetheReceiveTestPointusingahighimpedancemul-
timeter.TheoptimumrangefortheFOCNis0.5VDCto0.9VDC(approx.-3dBmto-0.5dBm).Operationdownto-8dBm
isfeasiblewithreducedperformance.
IftheFiberrunislessthanafewkilometers,thentheopticalsignalmustbeloweredbeforethesystemcanoperatecor-
rectly.Failuretolowerthesignalintotheoperatingrangeofthereceivermaycauseanoverloadedordistortedpicture.
Theeasiestwaytolowerthesignalistouseanopticalattenuator.
Ifthesignalgettingtothereceiveristolow,butthecorrectpowertransmitterisbeingused,pleasecheck
thefollowing:
1:Besurethefiberconnectorsareallofthesametype.AllFOCNunitsareshippedwithSC/APCstyleconnectors.
Thesewillbegreenincolor.YoucanNOTmixgreenandblueconnectors,astheendterminationsaredifferent.Thiscan
alsoresultinlowsignalorsnowypicture.STconnectorsaregenerallyorange,theseareforusewithMultiMode,and
arenotappropriateforbroadbanduse.
2:BroadbandRFtransmitterssuchasthosemadebyBlonderTonguerequiretheuseofSingleModefiber.MultiMode
fiberwillnotwork.AttemptingtouseMultiModefiberwillresultinlowsignalorsnowypicture.

8 FOCN
InstructionManual
MAINTENANCE INSTRUCTIONS
Cleaning
Iftheunitsneedtobecleaned,avoidtheuseofallsolventsanduselow-pressurecleanairtoremoveloosedirt.
Uselow-pressurecleanairtocleartheconnectorsofanydebris.Dirtyorscratchedconnectorendfaceswillgreatly
reducetheunit’sperformance.Foam-tippedswabssuchasthe2.5mmMiniFoamSwabofferedbyFiberInstrument
Sales(P/NF1-0005)maybesaturatedwithdenaturedalcohol*andinsertedintotheopticalportforcleaning.DONOT
INSERTADRYSWABINTOTHEOPTICALPORTASTHISMAYDAMAGETHEFIBERENDFACE.Manyfiberopticinstallations
experiencedegradedperformanceduetodirtyopticalconnectorendfaces.Thefollowingprocedureshouldbeusedto
properlycleantheopticalconnectorendfaces.
Connector Cleaning
Required Cleaning Equipment:
• Kimwipes®oranylens-grade,lint-freetissue.Thetypesoldforeyeglassesworkquitewell.
• DenaturedAlcohol.*
 *NOTE: Useonlyindustrialgrade99%pureisopropylalcohol.Commerciallyavailableisopropylalcoholisfor
medicinaluseandisdilutedwithwaterandalightmineraloil.Industrialgradeisopropylalcoholshould
beusedexclusively.
• 30XMicroscope.
• CannedDryAir.
Directions for Cleaning:
1) Foldthetissuetwicesoitisfourlayersthick.
2) Saturatethetissuewithalcohol.
3) Firstcleanthesidesoftheconnectorferrule.Placetheconnectorferruleinthetissue,andapplypressuretothe
sidesoftheferrule.Rotatetheferruleseveraltimestoremoveallcontaminationfromtheferrulesides.
4) Nowmovetoacleanpartofthetissue.Besureitisstillsaturatedwithalcohol,anditisstillfourlayersthick.
Putthetissueagainsttheendoftheconnectorferrule.Putyourfingernailagainstthetissuesothatitisdirectly
overtheferrule.Nowscrapetheendoftheconnectoruntilitsqueaks.Itwillsoundlikeacrystalglassthathasbeen
rubbedwhenitiswet.
5) Usethemicroscopetoverifythequalityofthecleaning.Ifitisn’tcompletelycleanrepeatthestepswitha
cleantissue.
6) Matetheconnectorimmediately!Don’tlettheconnectorliearoundandcollectdustbeforemating.
7) Aircanbeusedtoremovelintorloosedustfromtheportofatransmitterorreceivertobematedwiththe
connector.Neverinsertanyliquidintotheports.
Connector Handling
1) NEVER TOUCH THE FIBER END FACE OF THE CONNECTOR.
2) Connectorsnotinuseshouldbecoveredovertheferrulebyaplasticdustcap.Itisimportanttonotethattheinside
oftheferruledustcapscontainsastickygelatinousresiduethatistheby-productofthemakingofthedustcap.This
residuewillremainontheferruleendafterthecapisremoved.Thereforeitiscriticalthattheferruleendbecleaned
thoroughlyBEFOREitismatedtotheintendedunit.

9
FOCN
InstructionManual
Notes

10 FOCN
InstructionManual
Notes

Limited Warranty
Blonder Tongue Laboratories, Inc. (BT) will at its sole option, either repair or replace (with a new or factory reconditioned product,
as BT may determine) any product manufactured by BT which proves to be defective in materials or workmanship or fails to
meet the specifications which are in effect on the date of shipment or such other specifications as may have been expressly
agreed upon in writing (i) for a period of one (1) year from the date of original purchase (or such shorter period of time as may
be set forth in the license agreement specific to the particular software being licensed), with respect to iCentral™ (hardware and
software) and all other software products (including embedded software) licensed from BT, (ii)) for a period of one (1) year from
the date of original purchase, with respect to all MegaPort, IPTV products and fiber optics receivers, transmitters, couplers and
integrated receivers/distribution amplifiers (including TRAILBLAZER™, RETRO-LINX™ and TWIN STAR™ products) as well as for
VideoCipher® & DigiCipher® satellite receivers, and (iii) for a period of three (3) years from the date of original purchase, with
respect to all other BT products. Notwithstanding the foregoing, in some cases, the warranty on certain proprietary sub-assembly
modules manufactured by third party vendors and contained in BT products and on certain private-label products manufactured
by third parties for resale by BT are of shorter duration or otherwise more limited than the standard BT limited warranty. In such
cases, BT’s warranty with respect to such third party proprietary sub-assembly modules and private-label products will be limited
to the duration and other terms of such third party vendor’s warranty. In addition, certain products, that are not manufactured
but are resold by BT, carry the original OEM warranty for that product. The limited warranty set forth in this paragraph does not
apply to any product sold by BT, which at the time of sale constituted a Closeout Product.
BT will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may determine) any product
sold by BT which at the time of sale constituted a refurbished or closeout items (“Refurbished Product” and “Closeout Product”),
which proves to be defective in materials or workmanship or fails to meet the specifications which are in effect on the date of
shipment or such other specifications as may have been expressly agreed upon in writing, for a period of ninety (90) days from
the date of original purchase. Notwithstanding the foregoing, in some cases, the warranty on third party software and on certain
proprietary sub-assembly modules manufactured by third party vendors and contained in BT products and on certain private-
label products manufactured by third parties for resale by BT are of shorter duration or otherwise more limited than the BT limited
warranty for Closeout Products. In such cases, BT’s warranty for Closeout Products constituting such third party software, third
party proprietary sub-assembly modules and private-label products will be limited to the duration and other terms of such third
party vendor’s warranty. In addition, notwithstanding the foregoing, (i) certain Closeout Products that are not manufactured (but
are resold) by BT, carry the original OEM warranty for such products, which may be longer or shorter than the BT limited warranty
for Refurbished or Closeout Products. All sales of Refurbished or Closeout Products are final.
To obtain service under this warranty, the defective product, together with a copy of the sales receipt or other satisfactory proof
of purchase and a brief description of the defect, must be shipped freight prepaid to: Blonder Tongue Laboratories, Inc., One Jake
Brown Road, Old Bridge, New Jersey 08857.
This warranty does not cover damage resulting from (i) use or installation other than in strict accordance with manufacturer’s
written instructions, (ii) disassembly or repair by someone other than the manufacturer or a manufacturer-authorized repair
center, (iii) misuse, misapplication or abuse, (iv) alteration, (v) lack of reasonable care or (vi) wind, ice, snow, rain, lightning, or
any other weather conditions or acts of God.
OTHER THAN THE WARRANTIES SET FORTH ABOVE, BT MAKES NO OTHER WARRANTIES OR REPRESENTA-
TIONS OF ANY KIND, EXPRESS OR IMPLIED, AS TO THE CONDITION, DESCRIPTION, FITNESS FOR A PARTIC
-
ULAR PURPOSE, MERCHANTABILITY OR AS TO ANY OTHER MATTER, AND SUCH WARRANTIES SUPERSEDE
ANY ORAL OR WRITTEN WARRANTIES OR REPRESENTATIONS MADE OR IMPLIED BY BT OR BY ANY OF BT’S
EMPLOYEES OR REPRESENTATIVES, OR IN ANY OF BT’S BROCHURES, MANUALS, CATALOGS, LITERATURE
OR OTHER MATERIALS. IN ALL CASES, BUYER’S SOLE AND EXCLUSIVE REMEDY AND BT’S SOLE OBLIGA-
TION FOR ANY BREACH OF THE WARRANTIES CONTAINED HEREIN SHALL BE LIMITED TO THE REPAIR OR
REPLACEMENT OF THE DEFECTIVE PRODUCT F.O.B. SHIPPING POINT, AS BT IN ITS SOLE DISCRETION SHALL
DETERMINE. BT SHALL IN NO EVENT AND UNDER NO CIRCUMSTANCES BE LIABLE OR RESPONSIBLE FOR
ANY CONSEQUENTIAL, INDIRECT, INCIDENTAL, PUNITIVE, DIRECT OR SPECIAL DAMAGES BASED UPON
BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, STRICT TORT LIABILITY OR OTHERWISE OR
ANY OTHER LEGAL THEORY ARISING DIRECTLY OR INDIRECTLY FROM THE SALE, USE, INSTALLATION OR
FAILURE OF ANY PRODUCT ACQUIRED BY BUYER FROM BT.
All claims for shortages, defects and non-conforming goods must be made by Buyer in writing within five (5) days of receipt of
merchandise, which writing shall state with particularity all material facts, concerning the claim then known to Buyer. Upon any
such complaint, Buyer shall hold the goods complained of intact and duly protected, for a period of up to sixty (60) days. Upon
the request of BT, Buyer shall ship such allegedly nonconforming or defective goods, freight prepaid to BT for examination by
BT’s inspection department and verification of the defect. BT, at its option, will either repair, replace or issue a credit for products
determined to be defective. BT’s liability and responsibility for defective products is specifically limited to the defective item or to
credit towards the original billing. All such replacements by BT shall be made free of charge f.o.b. the delivery point called for in
the original order. Products for which replacement has been made under the provisions of this clause shall become the property
of BT. Under no circumstances are products to be returned to BT without BT’s prior written authorization. BT reserves the right
to scrap any unauthorized returns on a no-credit basis. Any actions for breach of this contract must be commenced by Buyer
within thirteen (13) months after the cause of action has accrued. A copy of BT’s standard terms and conditions of sale, including
the limited warranty, is available from BT upon request. Copies of the limited warranties covering third party proprietary sub-
assembly modules and private label products manufactured by third parties are also available from BT on request. VideoCipher®
& DigiCipher® are registered trademarks of Motorola Corp.
Rev 5/6/2009
Blonder Tongue Laboratories, Inc.
Limited Warranty
Blonder Tongue Laboratories, Inc. (BT) will at its sole option, either repair or replace (with a new or factory reconditioned product, as BT may
determine) any product manufactured by BT which proves to be defective in materials or workmanship or fails to meet the specifications which are
in effect on the date of shipment or such other specifications as may have been expressly agreed upon in writing (i) for a period of one (1) year from
the date of original purchase (or such shorter period of time as may be set forth in the license agreement specific to the particular software being
licensed), with respect to iCentral™ (hardware and software) and all other software products (including embedded software) licensed from BT, (ii) )
for a period of one (1) year from the date of original purchase, with respect to all MegaPort™, IPTV products, and fiber optics receivers, transmitters,
couplers and integrated receiver/distribution amplifiers (including TRAILBLAZER™, RETRO-LINX™ and TWIN STAR™ products) as well as for
DigiCipher ® satellite receivers, and (iii) for a period of three (3) years from the date of original purchase, with respect to all other BT products.
Notwithstanding the foregoing, in some cases, the warranty on certain proprietary sub-assembly modules manufactured by third-party vendors and
contained in BT products and on certain private–label products manufactured by third-parties for resale by BT are of shorter duration or otherwise
more limited than the standard BT limited warranty. In such cases, BT's warranty with respect to such third-party proprietary sub-assembly modules
and private-label products will be limited to the duration and other terms of such third-party vendor's warranty. In addition, certain products, that are
not manufactured but are resold by BT, carry the original OEM warranty for such products. The limited warranty set forth in this paragraph does not
apply to any product sold by BT, which at the time of sale constituted a Refurbished/Closeout Product.
(b) BT will at its sole option, either repair or replace (with a new or factory-reconditioned product, as BT may determine) any product sold by BT
which at the time of sale constituted a refurbished or closeout item (“Refurbished/Closeout Product”), which proves to be defective in materials or
workmanship or fails to meet the specifications which are in effect on the date of shipment or such other specifications as may have been expressly
agreed upon in writing, for a period of ninety (90) days from the date of original purchase. Notwithstanding the foregoing, in some cases the
warranty on third party software and on certain proprietary sub-assembly modules manufactured by third-party vendors and contained in BT products
and on certain private–label products manufactured by third-parties for resale by BT are of shorter duration or otherwise more limited than the BT
limited warranty for Refurbished/Closeout Products. In such cases, BT's warranty for Refurbished/Closeout Products constituting such third party
software, third-party proprietary sub-assembly modules and private-label products will be limited to the duration and other terms of such third-party
vendor's warranty. In addition, notwithstanding the foregoing, (i) certain Refurbished/Closeout Products that are not manufactured (but are resold)
by BT, carry the original OEM warranty for such products, which may be longer or shorter than the BT limited warranty for Refurbished/Closeout
Products. All sales of Refurbished/Closeout Products are final.
To obtain service under this warranty, the defective product, together with a copy of the sales receipt or other satisfactory proof of purchase and a
brief description of the defect, must be shipped freight prepaid to: Blonder Tongue Laboratories, Inc., One Jake Brown Road, Old Bridge, New
Jersey 08857.
This warranty does not cover damage resulting from (i) use or installation other than in strict accordance with manufacturer's written instructions, (ii)
disassembly or repair by someone other than the manufacturer or a manufacturer-authorized repair center, (iii) misuse, misapplication or abuse, (iv)
alteration, (v) lack of reasonable care or (vi) wind, ice, snow, rain, lightning, or any other weather conditions or acts of God.
OTHER THAN THE WARRANTIES SET FORTH ABOVE, BT MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF
ANY KIND, EXPRESS OR IMPLIED, AS TO THE CONDITION, DESCRIPTION, FITNESS FOR A PARTICULAR PURPOSE,
MERCHANTABILITY, OR AS TO ANY OTHER MATTER, AND SUCH WARRANTIES SUPERSEDE ANY ORAL OR WRITTEN
WARRANTIES OR REPRESENTATIONS MADE OR IMPLIED BY BT OR BY ANY OF BT’S EMPLOYEES OR
REPRESENTATIVES, OR IN ANY OF BT’S BROCHURES MANUALS, CATALOGS, LITERATURE OR OTHER MATERIALS. IN
ALL CASES, BUYER’S SOLE AND EXCLUSIVE REMEDY AND BT’S SOLE OBLIGATION FOR ANY BREACH OF THE
WARRANTIES CONTAINED HEREIN SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT OF THE DEFECTIVE
PRODUCT F.O.B. SHIPPING POINT, AS BT IN ITS SOLE DISCRETION SHALL DETERMINE. BT SHALL IN NO EVENT AND
UNDER NO CIRCUMSTANCES BE LIABLE OR RESPONSIBLE FOR ANY CONSEQUENTIAL, INDIRECT, INCIDENTAL,
PUNITIVE, DIRECT OR SPECIAL DAMAGES BASED UPON BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE,
STRICT TORT LIABILITY OR OTHERWISE OR ANY OTHER LEGAL THEORY, ARISING DIRECTLY OR INDIRECTLY FROM
THE SALE, USE, INSTALLATION OR FAILURE OF ANY PRODUCT ACQUIRED BY BUYER FROM BT.
All claims for shortages, defects, and non-conforming goods must be made by the customer in writing within five (5) days of receipt of merchandise,
which writing shall state with particularity all material facts concerning the claim then known to the customer. Upon any such claim, the customer
shall hold the goods complained of intact and duly protected, for a period of up to sixty (60) days. Upon the request of BT, the customer shall ship
such allegedly non-conforming or defective goods, freight prepaid to BT for examination by BT's inspection department and verification of the
defect. BT, at its option, will either repair, replace or issue a credit for products determined to be defective. BT's liability and responsibility for
defective products is specifically limited to the defective item or to credit towards the original billing. All such replacements by BT shall be made
free of charge f.o.b. the delivery point called for in the original order. Products for which replacement has been made under the provisions of this
clause shall become the property of BT. Under no circumstances are products to be returned to BT without BT's prior written authorization. BT
reserves the right to scrap any unauthorized returns on a no-credit basis. Any actions for breach of a contract of sale between BT and a customer must
be commenced by the customer within thirteen (13) months after the cause of action has accrued. A copy of BT's standard terms and conditions of
sale, including the limited warranty, is available from BT upon request. Copies of the limited warranties covering third-party proprietary sub-
assembly modules and private-label products manufactured by third-parties are also available from BT on request. DigiCipher ® is a registered
trademark of Motorola Corp. (Rev 0509)

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