
FDX4D Series
4 bi-directional data channels
D
4
Description
The ComNet™ FDX4D(M)(S)1 Series data transceiver
series provide transmission of four bi-directional data
channels over one optical fiber and are ideal for use
in unconditioned roadside or out-of-plant installations.
The data channels can be set independently for RS232,
RS422 and 2 or 4-wire RS485 with tri-state support.
Plug-and-play design ensures ease of installation and
no electrical or optical adjustments are ever required.
Bi-color (Red/Green) LED indicators are provided
for rapidly ascertaining equipment operating status.
Packaged in the exclusive ComNet ComFit housing,
these units may be either wall or rack-mounted, or may
be DIN-rail mounted by the addition of ComNet model
DINBKT1 adaptor plate.
Features
- Available with FC or ST Optical connectors
- Supports RS232, RS422, and 2 or 4-wire RS485 with tristate data interfaces
- Four bi-directional data channels
- Tested and certified by an independent laboratory for
full compliance with the environmental requirements
(ambient operating temperature, mechanical shock,
vibration, humidity with condensation, high-line/low-line
voltage conditions and transient voltage protection)
of NEMA TS-1/TS-2 and the Caltrans Specification for
Traffic Signal Control Equipment.
- Voltage transient protection on all power and signal
input/output lines provides unconditional protection
from power surges and other voltage transient events.
- Robust design ensures extremely high reliability in
unconditioned out-of-plant environments
- Bi-color (Red/Green) LED status indicators provide
rapid indication of critical operating parameters
- Hot-swappable rack modules
- Interchangeable between stand-alone or rack mount use
– ComFit
- Lifetime Warranty
LIFETIME WARRANTY WWW.COMNET.NET TECH SUPPORT: 1.888.678.9427

FDX4D(M)(S)1 Series
specifications
4 bi-directional data channels
DATA
Data Channels: 4
Data Interface:
Data Format:
Data Rate: DC-250 Kbps (NRZ)
Bit Error Rate: <1 in 10-9 @ Maximum
Operating Mode: Simplex or Full-Duplex
WAVELENGTH 1310/1550 nm, Multimode and Single
NUMBER OF FIBERS 1
LED INDICATORS - Received Data - Transmitted Data
OPTICAL EMITTER Laser Diode
CONNECTORS
Optical: ST or FC
Power: Terminal Block
Data: Terminal Block
RS232, RS422 and RS485 (2W/4W)
NRZ, NRZI, Manchester, Bi-Phase and
Sensornet
Optical Loss Budget
Mode
- Optical Carrier Detect
ELECTRICAL & MECHANICAL
Power:
Surface Mount: 8-15 VDC @ 4W
Rack Mount: From Rack
Number of Rack Slots: 2
Current Protection: Automatic Resettable Solid-State
Current Limiters
Circuit Board: Meets IPC Standard
Size (in./cm) (L×W×H) 6.1 × 5.3 × 2.2 in.,
(15.5 × 13.5 × 5.6 cm)
Shipping Weight: <2 lb./0.9 kg
ENVIRONMENTAL
MTBF: >100,000 hours
Operating Temp: -40˚ C to +75˚ C
Storage Temp: -40˚ C to +85˚ C
Relative Humidity: 0% to 95% (non-condensing)*
* May be extended to condensation conditions by adding suffix ‘/C’
to model number for conformal coating.
MADE IN THE
USA
PART
NUMBER
FDX4DM1A
FDX4DM1B
FDX4DS1A
FDX4DS1B
Accessories
Options
NOTE: This product requires a fiber installation with a minimum 30 dB connector return loss. The use of Super Polish Connectors is recommended. † Distance may be limited by optical dispersion.
Complies with FDA Performance Standard for Laser Products, Title 21, Code of Federal Regulations, Subchapter J
In a continuing effort to improve and advance technology, product specifications are subject to change without notice.
DESCRIPTION
Data Transceiver (1310/1550 nm)
Data Transceiver (1550/1310 nm)
Data Transceiver (1310/1550 nm)
Data Transceiver (1550/1310 nm)
9 Volt DC Plug-in Power Supply, 90-264 VAC, 50/60 Hz (Included)
Add ‘/C’ for Conformally Coated Circuit Boards (Extra charge, consult factory)
Add ‘/FC’ for FC Optical Connector
Add ‘/ST’ for ST Optical Connector
Add ‘/G’ for Gold-Plated Connector
DIN-Rail Mounting Adaptor Plate Kit – With mounting hardware (Optional, order model DINBKT1)
4
D D
FDX4DS1A
FIBERS
REQUIRED
1
1 69 km (43 miles)23 dB
1 Fiber
9/125µm SM
Up to 69 km
(43 miles)
FIBER
Multimode
62.5/125µm
Single Mode
9/125µm
FDX4DS1B
OPTICAL
PWR BUDGET
4
OPTICAL FIBER
MAX.
DISTANCE
3 km (2 miles)16 dB
†
SLOTS
2
2
# RACK
3 CORPORATE DRIVE | DANBURY, CT 06810 | USA
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10.28.10© 2010 Communications Networks Corporation. All Rights Reserved. “ComNet” and the “ComNet Logo” are registered trademarks of Communication Networks, LLC.