Standard Serial to
Fiber Optic Converters
Models FOSTCDR, FOSTCDR-INV
www.advantech-bb.com
PRODUCT FEATURES
• 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
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.
ORDERING INFORMATION
MODEL
NUMBER
FOSTCDR
SERIAL
CONNECTOR
Terminal Block
FIBER
CONNECTOR
Multi-mode ST
ISOLATION
2,000 V
INVERTED
FIBER STATE*
-
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.
FOSTCDR-INV
Terminal Block
Multi-mode ST
2,000 V
* Fiber is Off in the idle state.
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
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.
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.
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.
All product specifications are subject to change without notice.
FOSTCDR, FOSTCDR-INV_3017ds
orders@advantech-bb.com
support@advantech-bb.com
Corporate Headquarters: 707 Dayton Road, PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104
European Office: Westlink Commercial Park, Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445
Standard Serial to
Fiber Optic Converters
Models FOSTCDR, FOSTCDR-INV
SPECIFICATIONS
SERIAL TECHNOLOGY
Data Rate
RS-232
RS-422/485
RS-232: 115.2 Kbps maximum
RS-422/485: 460.8 Kbps maximum
Connector Terminal block (24 to 14 AWG)
RS-232 TD, RD, GND
Connector Terminal block (24 to 14 AWG)
RS-485, 2-wire
Data A(-), Data B(+), GND
RS-422/485, 4-wire
TDA(-), TDB(+), RDA(-), RDB(+), GND
ISOLATION
Rating
2KV RMS, 1 minute
Lines Protected
2-way (input, output lines)
Method
Optical
FIBER OPTIC TECHNOLOGY
Type / Wavelength
Multi-mode / 820 nm
Output Power
(-) 17 to (-) 10 dBm
Receive Sensitivity
(-) 25.4 dBm to (-) 24 dBm
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
Transmitter light ON
POWER
Source
External
Input Voltage
10 to 30 VDC
Consumption
1.7 Watts
Connector
Terminal block (24 to 14 AWG)
INDUSTRIAL BUS
Modbus
ASCII/RTU
MECHANICAL
LED Indicators
Serial TD, RD, Power
Dimensions
10.6 x 7.9 x 2.5 cm (4.3 x 2.3 x 0.95 in)
Enclosure
35mm DIN mount, plastic
Weight
182 g (0.4 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
APPROVALS / CERTIFICATIONS - FOSTCDR
cULus Recognized, File Number: E222870
FCC Part 15, CISPR, EN 55022 + AC:2011 Class A Emissions
CE
EN 61000-6-1 Generic Standards for Residential, Commercial and Light-Industrial
Environments
EN 61000-4-2 Electro-Static Discharge (ESD)
EN 61000-4-3 +A1 +A2 +IS1 Radiated Field Immunity (RFI)
EN 61000-4-4 Electrical Fast Transients-Burst Immunity (EFT)
EN 61000-4-6 Conducted Immunity
APPROVALS / CERTIFICATIONS - FOSTCDR-INV
UL 508, File Number: E222870
FCC Part 15, CISPR, EN 55022 + AC:2011 Class A Emissions
CE
MTBF
FOSTCDR
2187303 hours
FOSTCDR-INV
2187303 hours
Calculation Method
MIL 217F Parts Count Reliability Prediction
MECHANICAL DIAGRAM - Model FOSTCDR
orders@advantech-bb.com
support@advantech-bb.com
Corporate Headquarters: 707 Dayton Road, PO Box 1040 Ottawa, IL 61350 USA 815-433-5100 Fax 433-5104
European Office: Westlink Commercial Park, Oranmore Co. Galway Ireland +353 91 792444 Fax +353 91 792445