industrial Serial to Fiber optic Converters
FOSTCDRI, FOSTCDRI-INV
proDuCt FeatureS
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Data rates up to 115.2 kbps
10 – 48 VDC input power range
Wide operating temperature
2,000V, 3-way optical isolation
Modbus ASCII/RTU compatible
EMI / RFI protection
UL Class 1/Division 2
Inverted fiber state option (Model FOSTCDRI-INV)
TD, RD and Power LED's
Model FOSTCDRI is B&B Electronics’ premium industrial serial to
multi-mode fiber optic converter. Its rugged design is UL approved and
certified for Class 1/Division 2 industrial environments. It extends data
communications up to 4km (2.5 miles) . It provides three-way optical
isolation on the input, output and power lines.
In addition to direct point-to-point connectivity, it is capable of operating in
a multi-drop mode. This allows one serial device to communicate with up
to 31 other devices around a fiber ring. Since it supports mixed standards,
you can replace other converters and isolators and add the EMI / RFI
protection inherent to fiber optic communications.
In RS-232 mode, the converter supports Transmit and Receive data.
Handshaking signals are not passed through. An Automatic Send Data
Control circuit controls the RS-422/485 driver chip, eliminating the
requirement for external software.
Easy to install and configure, it has a 12-position DIP switch on the bottom
to configure RS-422/485 parameters. Serial data and power cables
connect to removable terminal blocks. ST connectors are used for the
fiber.
Model FOSTCDRI-INV features an “inverted fiber state” and is suitable
for applications requiring the fiber optic transmit light to be Off in the idle
state.
orDering inFormation
Model
serial ConneCtor
Fiber ConneCtor
nuMber
FOSTCDRI
Terminal Block
Multi-mode ST
FOSTCDRI-INV
Terminal Block
Multi-mode ST
isolation
2,000 V
2,000 V
aCCeSSorieS
MDR-40-24
- 24 VDC, 1A, slim-line DIN rail power supply
DFMM-STST-1M
- Multi-mode fiber optic cable with ST/ST connectors
(62.5/125 micro-meter), 1 meter
TBKT1
- Replacement 2-position terminal block, 5.08 mm
TBKT2
- Replacement 5-position terminal block, 5.08 mm
what is the difference between Model FostCdri
and Model FostCdri-inv?
The FOSTCDRI 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 FOSTCDRI-INV is the opposite. The fiber is Off in the idle state.
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FOSTCDRI, FOSTCDRI-INV_3713ds
industrial Serial/Fiber
optic Converters
FOSTCDRI, FOSTCDRI-INV
SpeCiFiCationS
serial teChnology
Data Rate
9.6 to 115.2 kbps
rs-232
Connector Removable terminal block
Signals TD, RD, GND
rs-422/485
Connector 5-position, removable terminal block
RS-485, 2-wire
Data A(-), Data B(+), GND
RS-422/485, 4-wire
TDA(-), TDB(+), RDA(-), RDB(+), GND
Bias Built-in, switchable, 1.2KΩ
Termination Built-in, switchable, 120Ω
isolation
Rating
2KV RMS, 1 minute
Surge Protection
600 W peak power dissipation
Clamping Time
< 1 pico-second
Lines Protected
2-way (input, output lines)
Method
Optical
Fiber oPtiC teChnology
Type / Wavelength
Multi-mode / 820 nm
Output Power
-16dBm min, -12dBm typical, -9dBm maximum
Receive Sensitivity
-24dBm min, -25.4dBm maximum
Cable
62.5/125 micro-meter
Connector
ST
Data Rate
9.6 to 115.2 kbps
Maximum Distance
4 km (2.5 mi)
Idle State, FOSTCDRI
Transmitter light ON
Idle State, FOSTCDRI-INV Transmitter light OFF
industrial bus
Modbus
ASCII/RTU
Power
Source
External
Input Voltage
10 to 48 VDC (56 VDC maximum)
12.3 cm
Consumption
0.5 W (typical), 1.3W (with termination)
4.9 in
Connector
2-position, removable terminal block, 24 to 14 AWG
meChaniCaL Diagram
3.2 cm
1.3 in
terMinal bloCks
Wire Size Accepted
28 to 12 AWG
Pitch
5.08 mm
Insulation Resistance
≥ 500 MΩ @ 500 VDC
Maximum Torque
5 Kg / cm
led indiCators
Power
Red LED
FO Receive
Red LED
FO Transmit
Red LED
MeChaniCal
Dimensions
12.3 x 11.3 x 3.2 cm (4.9 x 4.5 x 1.3 in)
Enclosure
IP 20 plastic, 35 mm DIN mount
Weight
199.6 g (0.44 lbs)
environMental
Operating Temperature
-40 to +80 °C (-40 to +176 °F)
Storage Temperature
-40 to +85 °C (-40 to +185 °F)
Operating Humidity
0 to 95% non-condensing
MTBF
138904 hours
MTBF Calculation Method Parts Count Reliability Prediction
aPProvals / CertiFiCations - FostCdri
UL Class 1 Division 2, Groups A, B, C, D
File Number: E222870 (HAZLOC E245458)
FCC Part 15, CISPR, EN 55022: 2010 + AC:2011 Class B Emissions
CE
EN 61000-6-1: 2007 Generic Standards for Residential, Commercial and Light-
Industrial Environments
3.2 cm
1.3 in
EN 61000-4-2: 2009 Electro-Static Discharge (ESD)
EN 61000-4-3: 2006 +A1 +A2 +IS1 Radiated Field Immunity (RFI)
EN 61000-4-4: 2012 Electrical Fast Transients-Burst Immunity (EFT)
EN 61000-4-6: 2009 Conducted Immunity
Download complete Declaration of Conformity at www.bb.elec.com
aPProvals / CertiFiCations - FostCdri-inv
UL 508, File Number: E222870
FCC Part 15, CISPR, EN 55022: 2010 + AC:2011 Class A Emissions
CE
11.3 cm
4.5 in
12.3 cm
4.9 in
11.3 cm
4.5 in
orders@bb-elec.com
support@bb-elec.com
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