B&B Electronics FOSTCDRKT - Datasheet - Manual

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Standard Serial to Fiber optic Converters
FOSTCDR, FOSTCDRKT, FOSTCDR-INV
The FOSTCDRx line of fiber optic converters are suitable for standard
industrial installations. These converters extend data communications up to
4 km (2.5 mi) and provide two-way optical isolation on the input and output
lines.
Model FOSTCDR industrial serial to multimode fiber optic converter,
provides the most versatile connection possible between any asynchronous
full or half-duplex serial equipment. In addition to direct point-to-point
connectivity, it is capable operating in a multi-drop mode. This allows
one serial device to communicate with up to 31 other devices around a
fiber optic ring. Since the FOSTCDR supports mixed serial standards, you
can replace other converters and isolators and add the EMI/RFI immunity
inherent to fiber optic communications.
An Automatic Send Data Control circuit controls the RS-422/485 driver
chip, eliminating the requirement for special software. Easy to install
and configure, it has an 8-position DIP switch to set up the RS-422/485
parameters and terminal blocks to connect serial signals and power. In
RS-232 mode, it supports Transmit and Receive data. Handshaking signals
are not passed through.
A kit option, Model FOSTCDRKT, conveniently bundles two FOSTCDR
converters with two matched power supplies.
Model FOSTCDR-INV features an “inverted fiber state” and is
suitable for applications requiring the fiber optic light to be Off in
the idle state.
• Data rates up to 115.2 kbps
• 4 km (2.5 mi) range
• 10 to 30 VDC input voltage
• Wide operating temperature
• 2000V, 2-way isolation
• Modbus ASCII/RTU compatible
• EMI/RFI protection
• TD, RD and Power LED's
proDuCt FeatureS
aCCeSSorieS
MDR-40-24 - DIN Rail Mount Power Supply 24VDC, 1.7 A output power
DFMM-STST-1M - Multimode fiber patch cable ST-ST connectors
orDering inFormation
Model
nuMber
serial ConneCtor Fiber ConneCtor isolation
FOSTCDR Terminal Block Multi-mode ST 2,000 V
FOSTCDR-INV Terminal Block Multi-mode ST 2,000 V
FOSTCDRKT
Bundled Kit Version, includes:
(2 ) FOSTCDR Converters, (2) MDR-20-24 Power Supplies,
(1) DFMM-STST-1M Fiber Optic 1-Meter Cable
what is the difference between Model FostCdr
and Model FostCdr-inv?
The FOSTCDR keeps the light in the fiber turned On when no data is
transmitted and the input signal is in the MARK state (idle). If light is lost or
too low, the electrical signals go to the SPACE state. The input signal turns the
light Off/On in step with the data. This model has an indicator for Transmit and
Receive, if no light is received, the RD LED will come on, the RD output will be
positive relative to GND (normally negative), and in RS-422 or RS-485 mode,
no light will set the TD(A)- line high relative to TD(B)+. The usual voltage with
light in the fiber and no signal sets the B line high relative to A (about 4.4 Volts
DC no termination).
The FOSTCDR-INV is the opposite. The fiber is Off in the idle state.
FOSTCDR, FOSTCDRKT, FOSTCDR-INV_3713ds