
Universal Data Drop & Repeat
Multi-Protocol RS232/422/485 Data Transceiver
FDX72(M,S)1
The ComNet™ FDX72(M,S)1 series Drop-Insert-Repeat Transceiver unit is a fullydigital modem designed for implementing RS232, RS422 or RS485 2 or 4-wire data
communications networks of the highest possible reliability. A network of FDX72
units can support one full-duplex or two half-duplex data channels. These transceivers
also feature data translation to convert between data protocols. Data re-clocking
and regeneration permit an almost unlimited number of transceiver/controller units
to be used within the network. These environmentally hardened transceivers are
ideal for use in unconditioned out-of-plant or roadside installations and, unlike many
competing designs, only one optical fiber is required between units. Combine these
units with the ComNet FDX70E(A,B)(M,S)1 series products as an end link to create a
linear Drop-Insert-Repeat chain. Plug-and-play design ensures ease of installation, and
no electrical or optical adjustments are ever required.
FEATURES
› Meets EIA RS232 and RS422/RS485 (2 or 4-wire)
specifications (Simplex or Duplex Operation)
› Two Data Channel Capability: One full duplex or two half-
duplex channels
› Only one optical fiber required between units
› Full data re-clocking and regeneration: no limit to the number
of transceiver units used within the network
› Supports supervised multiple master architecture for
unparalleled network reliability
› Remote Fault Indication allows the user to determine when a
fiber break or loss of prime operating power has occurred, or
a transceiver in the field has failed
› LED status indicators provide rapid indication of all critical
operating parameters, including the location of fiber breaks
or failed transceivers
› May be used to provide serial data protocol conversion
between nodes (consult factory)
› Designed to meet full compliance with the environmental
requirements (ambient operating temperature, mechanical
shock, vibration, humidity with condensation, high-line/lowline voltage conditions and transient voltage protection) of
NEMA TS-1/TS-2 and the Caltrans Specification for Traffic
Signal Control Equipment.
HARDENEDINCLUDED
› Robust design assures extremely high reliability in
unconditioned out-of-plant/roadside environments
› NTCIP compatible
› Voltage transient protection on all power and signal input/
output lines provides protection from power surges and other
voltage transient events.
› Wide optical dynamic range: optical attenuators are never
required
› Hot-swappable rack modules
› Interchangeable between stand-alone or rack mount –
ComFit package
› Units may be DIN-Rail mounted by the addition of ComNet
model DINBKT1 or DINBKT4 adaptor plate
› Lifetime Warranty
1 OR 2*
APPLICATIONS
› High Reliability Traffic Signalization Networks
› Access Control Networks
› Industrial Control/Factory Automation and SCADA Networks
› Serial Data Protocol Conversion
LIFETIME WARRANTY WWW.COMNET.NET TECH SUPPORT: 1.888.678.9427

FDX72(M,S)1
SPECIFICATIONS
Universal Data Drop & Repeat
Multi-Protocol RS232/422/485 Data Transceiver
Data
Data Format RS232, RS422, 2 or 4-wire RS485
w/Tri-State, Manchester, bi-phase, Sensornet
Data Rate DC-1Mbaud (RS422 & RS485)
DC-250kbps (RS232)
Operating Mode Asynchronous, simplex or full-duplex
Bit Error Rate <10-12 @ Maximum Optical Loss Budget
Wavelength 1310/1550 nm, MM and SM
Number of Fibers 1
Optical Emitter Laser Diode
LED Indicators › Power › Status › Receive Data Active
› Transmit Data Active › Port A Fiber Link Status
› Port B Fiber Link Status
Ring Failure Relay
Normally closed contact: Solid-State relay contacts rated at 0.5 mA, resistive load.
Connectors
Optical ST
Power Terminal Block
Data Terminal Block
Relay Terminal Block
ORDERING INFORMATION
Power
Operating Voltage Range 8 to 15 VDC (or from C1 Rack, sold separately)
Power Consumption 4 W
Electrical & Mechanical
Number of Rack Slots 1
Current Protection Automatic Resettable Solid-State Current Limiters
Circuit Board Meets IPC Standard
Size (in./cm) (L×W×H) 6.1 × 5.3 × 1.1 in (15.5 × 13.5 × 2.8 cm)
Shipping Weight <2 lbs./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)¹
Fibers
Part Number Description
FDX72M1 Universal Data Drop & Repeat 1 in/1 out Multimode 62.5/125µm 16 dB 4 km (2.5 mi) 1
FDX72S1 Universal Data Drop & Repeat 1 in/1 out Single mode 9/125µm 19 dB 40 km (25 mi) 1
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.
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.
[2] Distance may be limited by optical dispersion.
DC Plug-in Power Supply, 90-264 VAC. 5060 Hz (Included)
[1] Add ‘/C’ for Conformally Coated Circuit Boards to extend to condensation conditions (Extra charge, consult factory)
DIN-Rail Mounting Adaptor Plate Kit - With Mounting Hardware (Optional, order model DINBKT1 or DINBKT4)
Add ‘/B’ for Battery Backup
Required Fiber
Optical PWR
Budget
Max
Distance²
# Rack
Slots
TYPICAL APPLICATION
In the event of an optical fiber break, the color and pattern of LEDs will aid in locating the fiber break.
D
1 Fiber
9/125µm SM
Up to 69 km
(43 miles)
FDX70EAS1
1 Fiber
9/125µm SM
Up to 69 km
(43 miles)
1 Fiber
9/125µm SM
Up to 69 km
(43 miles)
1 Fiber
9/125µm SM
Up to 69 km
(43 miles)
FDX72S1FDX72S1 FDX72S1 FDX70EBS1
OPTICAL FIBER
TWISTED PAIR
D D D
3 CORPORATE DRIVE
8 TURNBERRY PARK ROAD
|
DANBURY, CONNECTICUT 06810
|
GILDERSOME
|
MORLEY
|
|
USA
T: 203.796.5300
|
LEEDS, UK LS27 7LE
|
F: 203.796.5303
|
T: +44 (0)113 307 6400
|
TECH SUPPORT: 1.888.678.9427
|
F: +44 (0)113 253 7462
|
INFO-EUROPE@COMNET.NET
|
INFO@COMNET.NET
01 Dec 2014© 2014 Communic ation Netwo rks. All Righ ts Reserv ed. “ComNet ” and the “ComNe t Logo” are regi stered tra demarks of Com munication Ne tworks.