CTC Union FMUX80 User manual

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FMUX80/160/800/1600
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Fiber Optical Multiplexer
Standalone / Rack Type
8/16 Channel E1/T1 plus 100M/1G Ethernet
SNMP Manageable
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LEGAL
Theinformationinthispublicationhasbeencarefullycheckedandisbelievedtobeentirelyaccurateatthetimeof
publication.CTCUnionTechnologiesassumesnoresponsibility,however,forpossibleerrorsoromissions,orforany
consequencesresultingfromtheuseoftheinformationcontainedherein.CTCUnionTechnologiesreservestheright
tomakechangesinitsproductsorproductspecificationswiththeintenttoimprovefunctionordesignatanytime
andwithoutnoticeandisnotrequiredtoupdatethisdocumentationtoreflectsuchchanges.
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CTCUnionTechnologiesmakesnowarranty,representation,orguaranteeregardingthesuitabilityofitsproductsfor
anyparticularpurpose,nordoesCTCUnionassumeanyliabilityarisingoutoftheapplicationoruseofanyproduct
andspecificallydisclaimsanyandallliability,includingwithoutlimitationanyconsequentialorincidentaldamages.
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CTCUnionproductsarenotdesigned,intended,orauthorizedforuseinsystemsorapplicationsintendedtosupport
orsustainlife,orforanyotherapplicationinwhichthefailureoftheproductcouldcreateasituationwherepersonal
injuryordeathmayoccur.ShouldtheBuyerpurchaseoruseaCTCUnionproductforanysuchunintendedor
unauthorizedapplication,theBuyershallindemnifyandholdCTCUnionTechnologiesanditsofficers,employees,
subsidiaries,affiliates,anddistributorsharmlessagainstallclaims,costs,damages,expenses,andreasonableattorney
feesarisingoutof,eitherdirectlyorindirectly,anyclaimofpersonalinjuryordeaththatmaybeassociatedwithsuch
unintendedorunauthorizeduse,evenifsuchclaimallegesthatCTCUnionTechnologieswasnegligentregardingthe
designormanufactureofsaidproduct.
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TRADEMARKS
MicrosoftisaregisteredtrademarkofMicrosoftCorp.
HyperTerminal™isaregisteredtrademarkofHilgraeveInc.
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WARNING:
ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassAdigitaldevice,pursuanttoPart15of
theFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferencewhenthe
equipmentisoperatedinacommercialenvironment.Thisequipmentgenerates,uses,andcanradiateradio
frequencyenergyandifnotinstalledandusedinaccordancewiththeinstructionmanualmaycauseharmful
interferenceinwhichcasetheuserwillberequiredtocorrecttheinterferenceathisownexpense.NOTICE:(1)The
changesormodificationsnotexpressivelyapprovedbythepartyresponsibleforcompliancecouldvoidtheuser's
authoritytooperatetheequipment.(2)ShieldedinterfacecablesandACpowercord,ifany,mustbeusedinorderto
complywiththeemissionlimits.
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CISPRPUB.22ClassACOMPLIANCE:
ThisdevicecomplieswithEMCdirectiveoftheEuropeanCommunityandmeetsorexceedsthefollowingtechnical
standard.EN55022‐LimitsandMethodsofMeasurementofRadioInterferenceCharacteristicsofInformation
TechnologyEquipment.ThisdevicecomplieswithCISPRClassA.
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WARNING:
ThisisaClassAproduct.Inadomesticenvironmentthisproductmaycauseradiointerferenceinwhichcasetheuser
mayberequiredtotakeadequatemeasures.
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CENOTICE
MarkingbythesymbolCEindicatescomplianceofthisequipmenttotheEMCdirectiveoftheEuropeanCommunity.
Suchmarkingisindicativethatthisequipmentmeetsorexceedsthefollowingtechnicalstandards:EN
55022:2006+A1:2007,ClassA,EN55024:2010,andEN60950‐1:2006
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CTC Union Technologies Co., Ltd.
Far Eastern Vienna Technology Center (Neihu Technology Park)
8F, No. 60, Zhouzi St.
Neihu, Taipei, 114
Taiwan
Phone: [phone]
FAX: [phone]
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FMUX160/80/1600/800
Fibermultiplexerwith8/16channelsE1/T1and100M/1GEthernetTrunk.
InstallationandOperationManual
Version1.0April10,2014(Release)
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Thisdocumentsupportsthefollowingmodels:
FMUX80B8‐Ch.UnbalancedE1,BNCwith4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX80R8‐Ch.BalancedE1/T1,RJ‐45with4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX160B16‐Ch.UnbalancedE1,BNCwith4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX160R16‐Ch.BalancedE1/T1,RJ‐45with4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX800B8‐Ch.UnbalancedE1,BNCwith4‐portGigabitEthernetSwitchand850MEthernettrunk
FMUX800R8‐Ch.BalancedE1/T1,RJ‐45with4‐portGigabitEthernetSwitchand850MEthernettrunk
FMUX1600B16‐Ch.UnbalancedE1,BNCwith4‐portGigabitEthernetSwitchand850MEthernettrunk
FMUX1600R16‐Ch.BalancedE1/T1,RJ‐45with4‐portGigabitEthernetSwitchand850MEthernettrunk
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Thisdocumentisthecurrentofficialreleasemanual.PleasecheckCTCUnion'swebsiteforanyupdatedmanualor
contactusbyE‐mailat[email protected].Pleaseaddressanycommentsforimprovingthismanualortopoint
outomissionsorerrorstom[email protected].Thankyou.
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©2013~2014CTCUnionTechnologiesCo.,Ltd.
AllRightsReserved
Thecontentsofthisdocumentaresubjecttochangewithoutanypriornotice.

Table of Contents
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CHAPTER1.INTRODUCTION .................................................................................................................................... 7
1.1GENERAL ......................................................................................................................................................................7
1.2FUNCTIONALDESCRIPTION...............................................................................................................................................7
1.3TECHNICALSPECIFICATIONS............................................................................................................................................10
1.4E1SIGNALSTRUCTURE..................................................................................................................................................13
1.5T1(DS1)SIGNALSTRUCTURE .........................................................................................................................................13
1.6APPLICATIONS/CAPABILITIES .........................................................................................................................................14
CHAPTER2.INSTALLATION .................................................................................................................................... 15
2.1GENERAL ....................................................................................................................................................................15
2.2SITEPREPARATION .......................................................................................................................................................15
2.3MECHANICALASSEMBLY................................................................................................................................................15
2.4ELECTRICALINSTALLATION..............................................................................................................................................16
2.4.1Powerconnection.............................................................................................................................................16
2.4.2RearandFrontpanelconnectors .....................................................................................................................17
2.5REMOVAL/REPLACEMENTPROCEDURES ...........................................................................................................................18
2.5.1SFPRemoval/Replacement(HotSwappable) .................................................................................................18
2.5.2TopcoverRemoval/Replacementforinternalaccess.....................................................................................19
2.5.3SNMPFeatureRemoval/Replacement ...........................................................................................................20
CHAPTER3.CONSOLEOPERATION......................................................................................................................... 21
3.1INTRODUCTION ............................................................................................................................................................21
3.2TERMINALMODEOPERATION ........................................................................................................................................21
3.3CONNECTINGTOTHEFIBERMULTIPLEXER .........................................................................................................................22
3.4CONFIGURINGINCONSOLEMODE...................................................................................................................................23
3.4.1Login.................................................................................................................................................................23
3.4.2MainMenu.......................................................................................................................................................23
3.4.3DeviceConfigurationMenu..............................................................................................................................24
3.4.4PasswordConfigurationMenu.........................................................................................................................25
3.4.5AlarmConfigurationMenu...............................................................................................................................26
3.4.6OrderWire........................................................................................................................................................26
3.4.7StoreParameters..............................................................................................................................................27
3.4.8AggregateConfiguration..................................................................................................................................28
3.4.9OpticalLoopBack.............................................................................................................................................29
3.4.10E1/T1ModeConfiguration(RJ45modelsonly)..............................................................................................30
3.4.11E1(T1)Configuration .....................................................................................................................................30
3.4.12LANPortConfiguration ..................................................................................................................................32
CHAPTER4.WEBBASEDOPERATION ..................................................................................................................... 35
4.1GENERAL ....................................................................................................................................................................35
4.2TCP/IPCONFIGURATION...............................................................................................................................................35
4.3BROWSERLOGIN..........................................................................................................................................................35
4.3.1PanelDisplay ....................................................................................................................................................36
4.3.2Configuration ...................................................................................................................................................37
4.3.3TCP/IPConfiguration........................................................................................................................................38
4.3.4DateandTimeConfiguration ...........................................................................................................................38
4.3.5SNMPManagerConfiguration .........................................................................................................................39
4.3.6SYSLOGConfiguration ......................................................................................................................................40
4.3.7LOGInformation...............................................................................................................................................41
4.4PROVISIONINGVIAWEB ................................................................................................................................................42
4.4.1DeviceConfiguration........................................................................................................................................42
4.4.2OpticalConfiguration .......................................................................................................................................43
4.4.3E1/T1Configuration .........................................................................................................................................44
4.4.4LANConfiguration ............................................................................................................................................45
4.4.5OrderWireConfiguration.................................................................................................................................46
4.4.6SFPInformation................................................................................................................................................47
4.5REMOTEMANAGEMENT................................................................................................................................................48
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Table of Contents
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CHAPTER5.SNMPOPERATION ..............................................................................................................................48
5.1GENERAL ................................................................................................................................................................... 48
5.2SNMPOPERATIONS .................................................................................................................................................... 49
5.3THEMANAGEMENTINFORMATIONBASE ......................................................................................................................... 50
5.4MIBSTRUCTURE ......................................................................................................................................................... 50
5.5SNMPCOMMUNITIES ................................................................................................................................................. 50
5.6SNMPUPGRADEVIATFTP .......................................................................................................................................... 51
5.7SNMPTRAPMESSAGES ............................................................................................................................................... 52
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Chapter 1. Introduction
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Chapter 1. Introduction
1.1 General
ThankyouforchoosingFMUX80/160/FMUX800/1600.Ifyouwouldliketoskiprighttotheinstallationand
configurationoftheMultiplexer,proceedtoChapters3and4.
TheFiber Multiplexer isa1U(1.75")highstandaloneor19"rackmountableE1/T1/LANmultiplexerover
fiberlink,builtuponacosteffectivefixeddesign.TheFiber Multiplexer providesaneconomicopticalconnection
solutioninhigh‐densityE1and/orT1installationssuchasbetweenbranchofficesorfor2G/3Gmobilebackhaul,
wheremultiplehighspeedsynchronousdatacommunicationsarerequiredwithhigh‐speedEthernetbackhaul.By
utilizingafixeddesign,costsarereducedandreliabilityimproved.Thestandardunitisachassiswithlocalcontroland
orderedwithsingleordualpower.OnemodelsupportsRJ‐45connectorsforE1/T1,wiredperUSOCRJ48C,while
anothermodelboastsBNCconnectorsforunbalanced75E1overcoaxialcables.TheFMUX160utilizesfixedoptical
transceiversandconnectoroptionsincludingST™,SCorFC.TheFMUX1600usesSFPcagesthatsupportanyindustry
standard1.25GbpsSFPmodule.Therangeoftransmissionforopticalconnectionisfrom2Km(formulti‐mode)upto
120Km(singlemode).OptionalSNMPCard(forlocalandremotemanagementpurposes)maybeorderedand
installedinthechassis.
1.2 Functional Description
TheFiber Multiplexer basicchassisisavailableinfivepowersupplyconfigurations.Dependingonthemodel,
powermaybederivedfromsingleAC100~240VAC,singleDC+18~60VDC,dualAC100~240VAC,dualDC+18~60VDC,
orACplusDCpowersources.TheFiber Multiplexer providesallE1/T1andLANconnectionsontherearpanel.The
frontpanelprovidestheLEDindicators,orderwire,clearchannelRS‐232,aggregateopticalandconsoleconnectors.
ModelBreakdown:
FMUX80B8‐Ch.UnbalancedE1,BNCwith4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX80R8‐Ch.BalancedE1/T1,RJ‐45with4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX160B16‐Ch.UnbalancedE1,BNCwith4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX160R16‐Ch.BalancedE1/T1,RJ‐45with4‐portEthernetSwitchand100MEthernetwirespeedtrunk
FMUX800B8‐Ch.UnbalancedE1,BNCwith4‐portGigabitEthernetSwitchand850MEthernettrunk
FMUX800R8‐Ch.BalancedE1/T1,RJ‐45with4‐portGigabitEthernetSwitchand850MEthernettrunk
FMUX1600B16‐Ch.UnbalancedE1,BNCwith4‐portGigabitEthernetSwitchand850MEthernettrunk
FMUX1600R16‐Ch.BalancedE1/T1,RJ‐45with4‐portGigabitEthernetSwitchand850MEthernettrunk
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The16‐CHANNEL"B"Modelhas16pairsofBNC(75Ohmunbalanced)connectorsforE1Lineinterface
connectionssupportingsixteenseparateE1channelsatatransmissionrateof2.048Mb/s(transparentunframedE1)
each.
The16‐CHANNEL"R"Modelprovide16RJ‐45(120/100Ohmbalanced,softwareselectable)connectorsfor
E1/T1(DS1)LineinterfaceconnectionssupportingsixteenseparateE1/T1(DS1)channelsatatransmissionrateof
2.048/1.544Mb/s(transparentunframedE1/T1)each.E1andT1configurationcannotbemixed;allportsmustbe
eitherE1orT1.
The8‐CHANNELmodelshavethesamefeatures,butwithonly8tributarychannels.
Thebuilt‐inEthernetSwitchprovidesfourRJ‐45connectorsfor10/100MwirespeedEthernet(FMUX80/160)
or10/100/1000MEthernet(FMUX800/1600upto850Mtrunkspeed).Theswitchfunctionprovidesauto/forcedper
portsettings,PortbasedVLANandEthernetflowcontrolenable/disable.
LEDsonthefrontpanelwillshowpower,alarmandchannelstatusesforallports.

Chapter 1. Introduction
8
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TheFiber Multiplexer E1andT1InterfacePortsfullymeetallE1andT1specificationsincludingITU‐TG.703,
G.704,G.706,G.732,G.733,G.823andG.824.TheEthernetswitchmeetsallEthernetspecificationsforIEEE802.3and
IEEE802.3u.
EachE1/T1‐CHANNELPortfeaturesdiagnosticcapabilitiesforperforminglocalloopbackorremoteloopback.
Theloopbackfunctioniscontrolledbytheterminalmode(RS‐232console)orwhentheSNMPoptionboardis
installedviaTelnet,WeborSNMPsetcommands.
Theunitoperatesfromaninternalfreerunningoscillator.TheFiber Multiplexer iscompletelytransparentto
clockinganddatatransmission.ThismakesconfigurationoftheMUXextremelyeasy.
WhentheFiber Multiplexer isorderedwithanoptionalSNMPModule,themodulecardisinstalledinside
thechassis.ConfigurationisaccomplishedvialocalcontrolontheasynchronousRS‐232portwithastandardVT‐100
terminal,viaEthernetandTelnet,orviaanystandardSNMPnetworkmanagementsoftwareoverEthernet.TheFiber
Multiplexerwillthenalsohaveanembeddedwebservertoprovidelocalorremotemanagementusinganywww
browser.IftheSNMPCardoptionisnotinstalled,localmanagementisstillpossibleviatheunit'sinternalmenu
systemaccessiblefromtheasynchronousRS‐232portwithastandardVT‐100terminal.
TheFiber Multiplexer alsoincludestheabilitytodoin‐bandremoteconfiguration.Oncethefiberopticlink
hasbeenestablished,theremoteunitmaybeconfiguredorstatuscheckedfromthelocalunitusinganyofthe
availablemanagementoptions.

Chapter 1. Introduction
9
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Thefollowingphoto,withgraphics,showsthemajorcomponentswhichmakeuptheFiber Multiplexer (with
theSNMPoptioninstalled).Thisphotoshowsaunitwith16E1/T1RJ‐45interfaces.
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Figure1‐1:Fiber Multiplexer MajorComponents
DC
AC
SFP
SNMP

Chapter 1. Introduction
10
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1.3 Technical Specifications
E1Link
Framing Unframed (transparent)
Bit Rate 2.048 Mb/s
Line Code AMI
HDB3
Line Impedance Unbalanced 75 ohms (BNC)
Balanced 120 ohms (RJ-45)
Receiver sensitivity +3 to -12dB (short haul)
"Pulse" Amplitude Nominal 2.37V+/-10% for 75 ohms
Nominal 3.00V+/-10% for 120 ohms
"Zero" Amplitude +/-0.3V
Transmit Frequency Tracking
Internal Timing +/-50 ppm
Jitter Performance According to ITU-T G.823
Complies With ITU-T G.703, G.704, G.706 and G.732
Interface Connectors RJ-45
BNC
Test Loops LLB (Local Loop Back)
RLB (Remote Loop Back)
RRLB (Request Remote Loop Back)
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T1Link
Framing Unframed (transparent)
Bit Rate 1.544 Mb/s
Line Code AMI
B8ZS
Line Impedance Balanced 100 ohms (RJ-45)
Receiver sensitivity +3 to -12dB (short haul)
"Pulse" Amplitude Nominal 3.00V+/-10% for 100 ohms
"Zero" Amplitude +/-0.3V
Transmit Frequency Tracking
Internal Timing +/-50 ppm
Jitter Performance According to ITU-T G.824
Complies With ITU-T G.703, G.704, G.706 and G.733
Interface Connectors RJ-45
Test Loops LLB (Local Loop Back)
RLB (Remote Loop Back)
RRLB (Request Remote Loop Back)
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EthernetSwitch
Interface Type (FMUX80/160) 10Base-T, 100Base-TX (auto-negotiation)
Interface Type (FMUX800/1600) 10Base-T, 100Base-TX, 1000Base-T (auto-negotiation)
Interface Connector RJ-45
WAN Data Rate 100M (FE Models) or 850M (GbE Models)
Complies with IEEE802.3 10Base-T
IEEE802.3u 100Base-TX
IEEE802.3ab 1000Base-T
IEEE802.3x Ethernet flow control
Configuration modes Auto, forced, Port Based VLAN, Ethernet flow control
MTU 1552 bytes (FMUX80/160)
10240 bytes (FMUX800/1600)
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Chapter 1. Introduction
11
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LocalSetupandConfiguration
Console RS-232 async DCE
Terminal Parameters Speed: 38,400
Bits: 8 bits
Parity: None
Stop: 1 bit
Flow Control: None
Pin Assignment (DB9F) 2 - RD Receive Data (output towards DTE)
3 - TD Transmit Data (input from DTE)
5 - SG Signal Ground
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AlarmOutputRelays
Alarm Output One of Normally Open/Closed contact for alarms, both
audio and visual.
Contact ratings: 1A at 30 VDC resistive
or 0.5A at 125 VAC resistive
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LEDIndicators
PWR1 Green Power Module 1 active
PWR2 Green Power Module 2 active
OP1 Green Off = off
On = optical link is good
blinking = working port
OP2 Green Off = off or disabled
On = optical link is good
Blinking = working port
Channels Dual Color One LED for each channel (1-8) or (1-16)
Green = E1/T1 Signal Present
Off = Out of Service
Amber = E1/T1 Loss of Signal
Amber (blinking) = channel in loopback mode
ALM Red Indicates an alarm has occurred, includes E1 or T1 BPV, signal
loss, LAN link down, or fiber sync slip.
RDI Red Remote Defect Indicator, indicates an alarm has occurred in
the remote multiplexer, includes E1, T1, LAN and fiber signal
loss.
SYS Green Indicates the system is normal
SNMP Green If SNMP option is installed, indicates the agent is active by
blinking once per second.
Phone Green Indicates the order wire is in use.
E1 Green For an E1/T1 multiplexer, On if configured as E1-RJ45 (120
ohm), OFF for T1-RJ-45 (100 ohm), Blinking for E1-BNC (75
ohm)
LNK (LAN) Green 4 LEDs, one for each LAN port
On = LAN link established
Flashing = link with traffic
Off = no LAN link or port disabled
100M (LAN) Dual Color 4 LEDs, one for each LAN port
Amber On = The LAN speed is 1000M (FMUX1600, 800 only)
Green On = The LAN speed is 100M
Off = If link is present, the LAN speed is 10M
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

Chapter 1. Introduction
12
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OpticalSpecifications(FMUX80/160fixedopticaltype)
Standard Types WDM Types*
Type M-M S-M S-M S-M S-M S-M S-M S-M S-M
Distance (Km) 2 15 30 50 120 20(A)* 20(B)* 40(A)* 40(B)*
Tx:1310 Tx:1550 Tx:1310 Tx:1550Wavelength
(nm) 1310 1310 1310 1310 1550
Rx:1550 Rx:1310 Rx:1550 Rx:1310
BER** <10-11 <10-11 <10-11 <10-11 <10-11 <10-11 <10-11 <10-11 <10-11
Sensitivity -31dBm -32dBm -35dBm -36dBm -35dBm -32dBm -32dBm -32dBm -32dBm
Output Power -20dBm -20dBm -15dBm -8dBm 0dBm -18dBm -15dBm -10dBm -7dBm
Power Margin 11dB 12dB 20dB 28dB 35dB 14dB 17dB 22dB 25dB
Return Loss -12dBm -12dBm -12dBm -12dBm -12dBm -14dBm -14dBm -14dBm -14dBm
ST v v v v v
SC v v v v v v v v v
Conn.
Types FC v v v v v
M‐M:multi‐modeS‐M:single‐mode[AllopticaltransceiversareratedClassA.]
*WDMtypesmustmatch(A)with(B)inpairs
**BitErrorRate
Allfibertransceiversinthefibermultiplexerincorporateanautomaticlasershutdownfeature(ALS)designed
toprotectpersonnelthatmaycomeintocontactwithadisconnectedfiberconnection.Thisfeaturemayalsobe
disabledfortestingpurposesviaconsoleterminalmodeorSNMP(whenSNMPoptionisinstalled).
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Physical
Height: 43 mm (1.75")
Width: 438 mm (17.25")
Depth: 200 mm (7.875")
Weight: 2.4 kg (5.3 lb.) Net
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Powersupply
Voltage (AC source) 100 ~ 240 VAC
Voltage (DC source) 18 ~ 60 VDC
Frequency 47 to 63 Hz for AC power
Power consumption <30 Watts
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Environment
Temperature 0-60oC / 32-140oF
Humidity 0 to 90% non-condensing
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Miscellaneous
MTBF 65,000 hours
Emission compliance meets FCC part 15 Sub B (class A)
EN55022:1994/A1:1995/A2:1997,
EN61000-3-2:1995, EN61000-3-3:1995,
and EN50082-1:1997
Safety compliance EN60950-1
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Chapter 1. Introduction
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1.4 E1 Signal Structure
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E1linklinerate
TheE1lineoperatesatanominalrateof2.048Mb/s.
E1linklinecoding
ThebasicE1linesignaliscodedusingeithertheAlternateMarkInversion(AMI)orHDB3rule.
IntheAMIformat,"ones"arealternatelytransmittedaspositiveandnegativepulses,whereas"zeros"are
transmittedasazerovoltagelevel.AMIisnotusedinmost2.048Mb/stransmissionsbecausesynchronizationloss
occursduringlongstringsofdatazeros.
IntheHDB3format,astringoffourconsecutivezerosisreplacedwithasubstitutestringofpulsescontaining
anintentionalbipolarviolation.TheHDB3codesubstitutionsprovidehighpulsedensitysothatthereceiving
equipmentisabletomaintainsynchronizationwiththereceivedsignal.
The8/16-CHANNEL E1 supportstwoE1linecodes:
AMIcoding.
HDB3coding.
The8/16-CHANNEL E1 supportsonlytransparentunframedformat.ie.,TheE1willpassthroughwithits
originalframingstructurecompletelyintact.
1.5 T1(DS1) Signal Structure
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T1linklinerate
TheT1lineoperatesatanominalrateof1.544Mb/s.
T1linklinecoding
ThebasicT1linesignaliscodedusingeithertheAlternateMarkInversion(AMI)orB8ZSrule.
IntheAMIformat,"ones"arealternatelytransmittedaspositiveandnegativepulses,whereas"zeros"are
transmittedasazerovoltagelevel.AMIisnotusedinmost1.544Mb/stransmissionsbecausesynchronizationloss
occursduringlongstringsofdatazeros.
IntheB8ZSformat,astringofeightconsecutivezerosisreplacedwithasubstitutestringofpulsescontaining
anintentionalbipolarviolation.TheB8ZScodesubstitutionsprovidehighpulsedensitysothatthereceiving
equipmentisabletomaintainsynchronizationwiththereceivedsignal.
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The8/16-CHANNEL T1supportstwoT1linecodes:
AMIcoding.
B8ZScoding.
The8/16-CHANNEL T1supportsonlytransparentunframedformat.ie.,TheT1willpassthroughwithits
originalframingstructurecompletelyintact.

Chapter 1. Introduction
14
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1.6 Applications / Capabilities
Inthefollowingexample,theFiber Multiplexer utilizesanopticalfiberconnectionbetweenapairofunitsto
provide8or16channelsofE1,T1,and1to4portsofTrunkEthernetbetweentheunits.
ThetimingschemefortypicalE1orT1equipmentistotransparentlypasstimingfromatimingsourceuniton
oneside,toatimingslavedunitontheother.Eachoftheupto16availablechannelsoftheFiber Multiplexer is
independentofanyotherchannelforframingortiming.
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Figure1‐2:TypicalPoint‐to‐PointApplicationofFiber Multiplexer
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Chapter 2. Installation
15
Chapter 2. Installation
2.1 General
ThischapterexplainsindetailtherequirementsandproceduresfortheinstallationoftheFiber Multiplexer
Standalone/RackMountFiberOpticalMultiplexer.
2.2 Site Preparation
InstalltheFiber Multiplexer withinreachofaneasilyaccessiblegroundedACoutlet.Theoutletshouldbe
capableoffurnishing100to240VAC(18to60VDCforDCsupply).Allowatleast10cm(4inch)clearanceattherear
andfrontoftheFiber Multiplexer forsignallinesandinterfacecables.
2.3 Mechanical Assembly
TheFiber Multiplexer isdesignedforrackmountinstallationandonlyrequires1Uspace(13/4")ina
standardEIA19inchrack.Itishighlyrecommendedthattheunitbeplacedinarack.TheFiber Multiplexeris
deliveredcompletelyassembled,withtheexceptionoftherackmountadapterbrackets.Noprovisionismadefor
boltingtheFiber Multiplexer toatabletop.
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Figure2‐1:RackmountInstallationoftheFiber Multiplexer

Chapter 2. Installation
16
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2.4 Electrical Installation
2.4.1Powerconnection
ForamodelwithACpowersupply,ACpower(100~240VAC)issuppliedtotheFiber Multiplexer througha
standardIECC143‐prongreceptacle,locatedontherearofthechassis.ForamodelwithDCpowersupply,DC–48V
(18~60VDC)isconnectedtotheterminalblock,observingtheproperpolarity.IntheAC/DCmodel,bothIEC
receptacleandDCterminalblockareprovidedfordualpoweroperation.TheFiber Multiplexer shouldalwaysbe
groundedthroughtheprotectiveearthleadofthepowercableinACinstallations,orviatheframegroundconnection
forDCinstallations.
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Figure2‐2:Supplyconnections,AC/DCmodelshown
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Left: Live line
Right: Neutral line
Middle: Ground
Right: -V (-48V)
Left: +V (0V)
Middle: Frame Ground
DC IN
+V FG -V
18~60VDC
IECC13lineplug

Chapter 2. Installation
17

2.4.2RearandFrontpanelconnectors
AllChannelsarefixedontherearoftheFiber Multiplexer.Asamanufactureroffibermultiplexersforalmost
15years,ourexperiencehasshownthatinlessthan1%ofcaseswillanoperatoreverusetheexpansionfeatureofa
modularmultiplexerwhichisallE1orT1.Thisadditionalcostformodulardesignisbornbytheoperator,increasing
operatingcosts.Inthisagewherecostsmustbecontrolled,purchasersshouldbeoptingforalowcostfixeddesign
whenavailable.Maintenancepersonnelmusttakeonanewmindsettonotspecifyhighpricedanduselessfeatures
whendevelopingcompliancedocuments.Modulardesignedmultiplexers,ofthiscapacity,areneitherrequiredorare
theyfinanciallyviable.Modulardesignsarereservedformulti‐servicemultiplexerssupportingTDM,DataandVoice.

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RearPanel(exampleFMUX160B)
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RearPanel(exampleFMUX1600R)
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Figure2‐3:RearPanelConnections
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ThefrontpaneloftheFiber Multiplexer,holdstheopticalinterfaces,thestatusandalarmLEDs,thecall
button,orderwirejack,clearRS‐232channelandthelocalmanagementconsoleport.Theopticalinterfacesmaybeof
theFixedtypeorpluggableSFPtype.Thetwoopticalinterfacesprovide1+1fiberprotection.Thefrontpanelalso
providestheconnectionstotheRS‐232ConsoleInterface(terminalmode)andtothemanagementnetworkforSNMP
control(whentheSNMPoptionisinstalled).
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Figure2‐4:FrontPanelControlsandIndicators
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16xE1/T1balancedRJ‐45
DCMains
TerminalBlock
MainsSwitches
ACMains
IECC14
E1unbalancedBNC
GigabitEthernetSwitch
Optical
Interfaces
AlarmContacts
RS‐232
ClearChannel
Console
Management
Port
OpticalandChannel
Status
Indicators
OrderWire
FastEthernetSwitch
SNMPEthernet
Management
Port
OrderWire
CallButton

Chapter 2. Installation
18

2.5 Removal/Replacement Procedures
2.5.1SFPRemoval/Replacement(HotSwappable)
TheGigabitEthernetFiberMultiplexeracceptsanySFPunitthatcomplieswiththeMSAstandard.Followall
ESDprecautionswhenhandlingtheSFPmodules.Fiberopticcomponentsandcablesareverysensitivetodirt,dust
andmishandling,especiallyinhigh‐speednetworks.Dirtyormistreatedfibermaycauseerrorsandanunwanted
degradationofsignalquality.RemovethedustcapsonSFPandpatchcableconnectorsonlywhenreadytoplugin
opticalcables.
WhenchoosingSFPopticalmodules,theSFPmustbeabletosupporttherequireddatarate.FortheFMUX800
andFMUX1600,SFPwithadataratingof1.25Gbpsisrequired.MakesuretheSFPmoduleschosenaresuitableforthe
requireddatarate.(FMUX80andFMUX160usefixedtransceivers.)
Installation
CTCUnionsuppliedSFPmodulesareoftheBaleClasptype.ThebaleclaspSFPmodulehasabaleclaspthat
securesthemoduleintotheSFPcage.
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Figure2‐5:OpticalInterfaceRemoval/Replacement(whileinservice)
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•RemovingaBaleClaspSFPModule
Step1OpenthebaleclaspontheSFPmodule.Presstheclaspdownwardwithyourindexfinger.
Step2GrasptheSFPmodulebetweenyourthumbandindexfingerandcarefullyremoveitfromtheSFPcage.
•InsertingaBaleClaspSFPModuleintoanSFPcage
Step1ClosethebaleclaspupwardbeforeinsertingtheSFPmodule.
Step2LineuptheSFPmodulewiththeport,andslideitintothecageuntilitseats.
Figure2‐6:SFPcageslocatedonfrontpanel
SFPCages
1+1Optical

Chapter 2. Installation
19
2.5.2TopcoverRemoval/Replacementforinternalaccess
Normally,thereisnoneedtoremovethecoveroftheunit.Allinterfacesarefixedandnouserserviceable
componentsareinside.However,tochangeanyACorDCpowermodule,addtheSNMPfeature,internalaccessis
requiredandthecovermustberemoved.
***CAUTION***
Thisprocedureshouldonlybeperformedbyqualifiedservicepersonnel.Inaddition,allpowerconnections
mustberemovedbeforeevenattemptingtoopenthecase.
1.Iftheunitisinstalledinarack,itmustberemovedalongwithallpowerconnections.
2.Therackmountingbrackets,ifinstalled,neednotberemoved.
3.Thetopcoverisheldinplacebyeightscrews.
4.Oncealleightscrewsareremoved,thetoppaneljustliftsoff.Theinternalsarenowexposed.
Followtheprocedureinreversetore‐installthetoppanel.Installthescrewsbutatfirstdonottighten.Make
surealleightscrewsarestartedandnotcrossthreaded,thentightentheminacrisscrosspattern.Thescrewsareonly
3mm,sodonotovertightenortheymaybecomestrippedorbroken.Re‐installtherackmountearsiftheywere
removed.
Figure2‐7:Topcoverremoval(whileoutofservice)

Chapter 2. Installation
20
2.5.3SNMPFeatureRemoval/Replacement
***CAUTION***
Thisprocedureshouldonlybeperformedbyqualifiedservicepersonnel.Inaddition,allpowerconnections
mustberemovedbeforeattemptingtoopenthecase.
1.Iftheunitisinstalledinarack,itmustberemoved.
2.Followtheprocedurein2.5.2toremovethetopcover.
3.TheconnectorfortheSNMPdaughtercardislocatedontheleftsideofthedevice,whenlookingfromthe
front.TheSNMPkitwillincludethreestand‐offs,theSNMPcardandthreescrews.Insertthethreestand‐offsand
tightencarefullyastheyarebrassandonly3.5mm.CarefullyalignthepinsoftheSNMPcard,seatthecard,ensuring
nopinsarebent.ThethreeholesinthePCBshouldlineupwiththethreestand‐offsonthemainboard.
4.Installthethreepan‐headscrewssupplied.Tightenfirmly,butdonotovertighten.Refertothephotobelow.
5.Re‐installthetopcover.
Figure2‐8:SNMPmodulecardRemoval/Replacement