125 Megabaud Fiber Optic
Transceiver
JIS FO7 Connection
Technical Data
HFBR-5527
Features
• Data Transmission at Signal
Rates of 1 to 125 MBd over
Distances up to 100 Meters
• Compatible with Duplex JIS
FO7 and Simplex JIS FO5
Connectors
• Specified for Use with
Plastic Optical Fiber (POF),
and with Large Core Silica
Fiber (HCS
®
)
• Transmitter and Receiver
Application Circuit
Schematics Available
• Conductive Plastic Housing
Provides Electrical Shield
Description
The 125 MBd transceiver is a
cost-effective fiber-optic solution
for transmission of 125 MBd data
up to 100 meters with HCS
®
fiber. The data link consists of a
650 nm visible, red LED trans-
mitter and a PIN/preamp receiver.
These can be used with low-cost
plastic or hard clad silica fiber.
One millimeter diameter plastic
fiber provides the lowest cost
solution for distances under 25
meters. The lower attenuation of
HCS
®
fiber allows data transmis-
sion over longer distance. These
components can be used for high
speed data links without the
problems common with copper
wire solutions.
The transmitter is a high power
650 nm LED. Both transmitter
and receiver are molded in one
housing which is compatible with
the FO7 connector. This con-
nector is designed to efficiently
couple the power into POF or
HCS
®
fiber.
Applications
• Intra-System Links: Board-
to-Board, Rack-to-Rack
• High Voltage Isolation
• Telecommunications
Switching Systems
• Computer-to-Peripheral Data
Links, PC Bus Extension
• Industrial Control Networks
• Proprietary LANs
• Digitized Video
• Medical Instruments
• Immune to Lightning and
Voltage Transients
With the recommended drive
circuit, the LED operates at
speeds from 1-125 MBd. The
analog high bandwidth receiver
contains a PIN photodiode and
internal transimpedance
amplifier. With the recommended
application circuit for 125 MBd
operation, the performance of the
complete data link is specified for
0-25 meters with plastic fiber. A
wide variety of other digitizing
circuits can be combined with the
HFBR-5527 Series to optimize
performance and cost at higher or
lower data rates.
HCS
®
is a registered trademark of Spectran Corporation.
5965-7092E (5/97)
165
HP [ AGILENT(HEWLETT-PACKARD) ]
