FT05MHNR FT05MVNR
650 nm DC-5 MBd RedLink®
Fiber Optic Transmitter
Datasheet
FT05MHNR FT05MVNR Revision D
1
DESCRIPTION
The Firecomms DC to 5 MBd RedLink® transmitter is
based on the highly reliable Firecomms designed
Resonant Cavity Light Emitting Diode (RCLED)
technology.
It is housed in a non-conducting plastic RedLink®
connector. The 5 MBd transmitter is grey in colour.
The housings are compatible with the Versatile Link
style fiber plug and are optimized for use with
Plastic Optic Fiber (POF) and Plastic Clad Silica (PCS)
fiber.
The transmitter can be driven from TTL type logic
drivers. It operates over the industrial temperature
range of -40 ⁰C to +85 ⁰C, supporting many
industrial applications where reliable command and
control response is required in electrically harsh
environments.
The transmitter uses a large aperture (150 μm
diameter) red (650 nm) eye-safe RCLED based on
InGaP/InGaAlP/GaAs technology. It operates over a
wide range of drive current that can be adjusted
using a serial resistor to minimize current
consumption for a given link distance.
AVAILABLE OPTIONS
Table 1
ORDERING INFORMATION / PART NUMBERS
5 MBd Horizontal Package
Non-Inverting, TTL
FT05MHNR
5 MBd Vertical Package
Non-Inverting, TTL
FT05MVNR
FEATURES
• Ideal for use with POF
• Optimized for data transmission from DC to 5
MBd
• Industrial temperature range -40⁰C to +85⁰C
• RoHS and UL compliant
• Flame retardant (UL 94 V-0) connector
housings
• RCLED transmitter with visible red light
(650 nm wavelength)
• Low pulse width distortion
• Compatible with Versatile Link cables and
connectors
APPLICATIONS
Table 2
APPLICATIONS
Application
Motor Control, Voltage Isolation, Drives,
Inverters, Industrial Control, Gaming,
Medical Imaging
Standard
Low-speed serial RS232, RS485, CAN Bus,
Modbus, Profibus
Distance
50 meters Step Index (SI) POF in typical
operating conditions
30 meters in worst case conditions
Speed DC to 5 MBd
FT05MHNR FT05MVNR Revision D
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 60950-1 Files No. E362227
Storage Compliance MSL J-STD-020 2a (4-week floor life)
Restriction of Hazardous
Substances Directive
RoHS Directive 2011/65/EU Certified compliant
Eye Safety
IEC 60825-1 LED Class 1
RECOMMENDED APPLICATION CIRCUIT
1
2
3
4
C1, 4.7
µ
F
R1, 51
Ω
Vcc
(5 V)
DATA
1/2 SN75451
8
5
NOTE: R1 = 51 Ω, then I
F
drive current is approximately 60 mA. To reduce drive current, select a higher R1 value
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.
4 Not Connected N.C.
5 Retaining Pin Gnd
8 Retaining Pin Gnd