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RD300-OF
Serial RS232/RS422/RS485 to multimode fiber optic media converter
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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 RD300-OF 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
RD300-OF 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.
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Technical chracteristics overview
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Serial link
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Optic fiber
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3 in 1 interface: RS232, RS422 & RS485 |
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Pluggable solderless screw
terminal field |
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RS422/RS485 speed up to 2
Mbps, 1 Mbps in RS232 mode |
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Serial link parameter self
configuration "Plug & Play" |
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RS232 signals: TxD, RxD, GND |
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RS422 signals: TxA, RxA, TxB, RxB, GND |
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RS485 signals: TRxA, TRxB,
GND |
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Configurable polarization & terminating
resistors (mini-switches) for RS422/RS485 |
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Automatic RS485 line turn-around, software
independent |
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Half-duplex & Full-duplex modes
support |
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Serial protocols: The RD300-OF
device supports any kind of communication protocols
(Modbus, Unitelway, Profibus, DH+, ASCII or binary
serial protocols ...) |
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15 KV ESD protection
and HF filtering |
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Multimode
optic fiber |
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50/125 µm,
62.5/125 µm, 100/140 µm & 200 µm
fibers support |
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ST type connectors |
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Transmission up to 5000m on a 100/140
µm fiber at 25°C |
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Wave lenght: 820 nm |
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Power budget: 22.4 dB |
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Selectable ON/OFF state
of the fiber light at the idle state |
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5 dB & 11 dB attenuator
for short distance communication, mini-switches
selectable |
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Reliable communication
without any error even in case of significant EMI/RFI
interferences |
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Bi-directionnal transmission |
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Topologies: Point to point
& simple ring |
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Infinite galvanic isolation
through the optic fiber |
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Fiber breakdown self diagnostic,
failure is reported on a LED and a relay contact
(MOSFET) is activated |
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Power supply, signalling and other characteristics
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Point to Point topology
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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.
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Simple ring topology
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This topology enables to build a simple ring whereas the master
equipment is installed in the middle.
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Reference to order:
| RD300-OF |
Serial
RS232/RS422/RS485 to multimode fiber optic media converter,
+9VDC to +36VDC power supply, din rail mounting |
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