FT10MHLRFT10MVLR
650nmDC‐10MBdRedLink®
FiberOpticTransmitter
DataSheet
FT10MHLRFT10MVLRRevisionE
1
DESCRIPTION
TheFirecommsDCto10MBdlowcurrentRedLink®
transmitterisahighlyreliableResonantCavityLight
EmittingDiode(RCLED)whichoperatesasavisible
opticalsourcegeneratingred650nmlightatdata
ratesfromburstmodeDCtoamaximumof10MBd
of continuous digital data. The RCLED is
encapsulated in a lensed clear molded plastic
packageforoptimumcouplingtoPlasticOpticFiber
(POF). It operates over the industrial temperature
rangeof‐40⁰Cto+85⁰C.
The 10 MBd transmitter produces higher optical
power for the same input current relative to the
standard Firecomms 10 MBd device (FT10MHNR).
This allows a lower overall current consumption
whenusedinanexistinglinkdesign.
The transmitter is assembled in a gray non‐
conductingplastichousingrequiringlowoperating
currentsupportingbothhorizontalandverticalplug
options. The use of the eye‐safe, visible light
simplifieslinkset‐upandtesting.
AVAILABLEOPTIONS
Table1
ORDERINGINFORMATION/PARTNUMBERS
10MBdHorizontalPackage
Non‐Inverting,TTL
FT10MHLR
10MBdVerticalPackage
Non‐Inverting,TTL
FT10MVLR
FEATURES
VisibleRCLEDatredwavelength(660nm)
Optimized���fordatatransmissionfrom
DCto10MBdwithlowcurrentconsumption
IdealforusewithStepIndex(SI)PlasticOptic
Fiber(POF)
Industrialtemperaturerange‐40⁰Cto+85⁰C
RoHScompliant
Flameretardant(UL94V‐0)connector
housings
Lowpulsewidthdistortion
CompatiblewithVersatileLinkcablesand
connectors
APPLICATIONS
Table2
APPLICATIONS
Application
AutomationandIndustrialControl,Low‐
SpeedSerialCommunications,Voltage
Isolation
Standard
SerialRS232,RS485,CANBus,Modbus,
Profibus,Sercos
Distance 50metersStepIndex(SI)POF
[1]
Speed DCto10MBd
Note:1.Dependingontheinstallationconditionsand
assumingaFirecomms10MBdreceiver
FT10MHLRFT10MVLRRevisionE
2
SPECIFICATIONS

1, TD +
2, TD -
3, N.C.
4, N.C.
8, Gnd
5, Gnd
FIGURE1
Transmitterpin‐out,topview
Table4
REGULATORYCOMPLIANCE
Parameter Symbol Standard Level
ElectrostaticDischarge,
HumanBodyModel(contactESD)
HBM Mil‐STD‐883 Level2(4kV)
RadiatedEmissionsImmunity Vm
‐1
IEC61000‐4‐3 15Vm
‐1
ULCertification UL 94V‐0 FilesNo.E362227
StorageCompliance MSL J‐STD‐020E 2a(4‐weekfloorlife)
RestrictionofHazardous
SubstancesDirective
RoHS Directive2011/65/EU Certifiedcompliant
RECOMMENDEDAPPLICATIONCIRCUIT
1
2
3
4
C2
Vcc
(5 V)
DATA
1/2 SN75451
C1
R2
R1
Value Tolerance
R1
2 k 5%
R2
100
1%
C1
0.1
F
20%
C2
10
F
20%
8
5
FIGURE2
Recommendedtransmitterapplicationcircuit.Seenote6Table6

Table3
TRANSMITTERPINDESCRIPTION
Pin Name Symbol
1 RCLEDANODE TD+
2 RCLEDCATHODE TD‐
3 NotConnected N.C./Gnd
4 NotConnected N.C./Gnd
5 RetainingPin Gnd
8 RetainingPin Gnd
