RD320-OFR
Serial RS232/RS422/RS485 to single mode fiber optic media converter, multipoint & fault tolerant
Using fiber optic enables to use a higher communication bandwidth while offering a total immunity against EMI/RFI interferences and an increased security as well.
The optical fibre still offers other advantages: use without risk in an explosive environment, no EMC emission, no ground loops, immunity against lightning and high voltage environments, they are finally lighter, less cumbersome, inert and corrosion resistant ...
Why using fiber optic ?
Using fiber optic enables to use a higher communication bandwidth while offering a total immunity against EMI/RFI interferences and an increased security as well.
The optical fibre still offers other advantages: use without risk in an explosive environment, no EMC emission, no ground loops, immunity against lightning and high voltage environments, they are finally lighter, less cumbersome, inert and corrosion resistant ...
Plug & Play
The RD320-OFR device features a self configuration mechanism based on a CPLD component freed you from the tiresome operation which consist in the serial parameters setup, product is "Plug & Play".
Security & fault tolerance (redundancy)
RD320-OFR features in standard a built-in system to control the fiber integrity, it reports automatically any failure with an error LED and also setup a relay contact (MOSFET) to activate any external safety device.
The RD320-OFR device features two pairs of fiber, the second one can be used to provide the redundancy of the first one, an "OR" mechanism makes it possible to receive data from any of those pairs in case of failure or fiber breakdown.
| Serial Link | |
| Serial interface: | • RS232, RS422 & RS485 |
| Connector: | • Pluggable solderless screw terminal field |
| Serial parameters: |
• Speed up to 500 Kbps • Serial link parameter self configuration "Plug & Play" |
| RS232 signals: | • TxD, RxD, GND |
| RS422 signals: | • TxA, RxA, TxB, RxB, GND |
| RS485 signals: | • TRxA, TRxB, GND |
| Configuration: | • Configurable polarization & terminating resistors (mini-switches) for RS422/RS485 |
| Modes: |
• Automatic RS485 line turn-around, software independent Half-duplex & Full-duplex modes support • Serial protocols: The RD320-OFR device supports any kind of communication protocols (Modbus, Unitelway, Profibus, DH+, ASCII or binary serial protocols ...) |
| Protection: |
• 15 KV ESD protection and HF filtering Infinite galvanic isolation through the optic fiber |
| Fiber Link | |
| Fibertypes: | • Singlemode, 9/125 µm fibers support |
| Wavelenght: | • 1310 nm |
| Fiber optic ranges max: | • Transmission up to 20 Km on a 9/125 µm fiber at 25°C |
| Fiber optic connection: | • SC |
| Topologies: |
• Point to point, simple ring • Single-master & dual-master buses • Redundant fiber ring, dual ring with dual master, dual point to point & star network |
| Other features: | • Selectable ON/OFF state of the fiber light at the idle state |
| Options: | • |
| Other Characteristics | |
| Operating voltage: | • +9VDC to +36VDC wide DC power range, screw-in terminal |
| Power consumption: | • 2.5W (maximum) |
| Diagnostics: |
• LED for: TxD & RxD on both copper and fiber optic side • Fiber breakdown self diagnostic, failure report on a LED and relay contact (MOSFET) activation |
| Dimensions: | • 107 mm (L) x 88 mm (W) x 25 mm (H), |
| Weight: | • 260 g |
| Housing: |
• Robust & compact metal case, CE industrial grade • Case and 35 mm Din Rail mounting |
Point to Point topology
This configuration enables to control a single equipment installed in a very polluted or distant area. The optical line is totally insensitive to EMI/RFI perturbations.
Simple ring topology
This topology enables to build a simple ring whereas the master equipment is installed in the middle.
Single master bus topology
Each media converter device enables to connect to the network one or more slaves peripherals controlled by the master which governs exchanges using addressing sequences.
All the slaves equipments receive data transmitted by the master and answer are then received only by the master.
