Universal serial RS232/RS422/RS485 to multimode optic fiber media converter (2 ST type connectors )
NOTE : RD300-OF has reached the end of its life cycle (to know more about its different deadlines click here).
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: RD300 features a self configuration mechanism based on a CPLD component that frees you from the tiresome operation which consists in the serial parameters setup, product is “Plug & Play”.
RD300 features in standard a built-in system to control the fiber integrity, it reports automatically any failure with an error LED and also setups a relay contact (MOSFET) to activate any external safety device.
Its small size, design features and its great adaptability make the RD300 a really universal product capable to satisfy to major needs of the industry.
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Conversion |
Serial RS232/RS422/RS485 to multimode fiber optic, RS485 mode self line turnaround
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Serial speed |
2Mbps for RS422/RS485 mode, 1Mbps for RS232 mode
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Distance |
5000m with a 100/140 µm fiber type at 25°C
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Serial protocols |
The device supports any kind of communication protocols (Modbus, Unitelway, Profibus, DH+ and any ASCII or binary serial protocols …)
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Configuration |
Serial link parameters auto configuration, no switches. Line polarization, termination and selection between RS232/RS422/RS485 modes are configurable by mini-switches.
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Serial connectors |
Pluggable screw-in terminal, TxD & RxD signal for RS232 mode, TxA, RxA, TxB, RxB for RS422 mode, TRxA & TRxB for RS485 mode
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Optic fiber |
50/125 µm, 62.5/125 µm, 100/140 µm, 820 nm wave length, selectable ON/OFF state of the fiber light at the idle state.
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Power budget |
22.4 dB, 5 dB & 11 dB attenuator for short distance communication
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Fiber connectors |
2 ST connectors
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Network topologies |
Point to point, ring
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Signaling |
2 LEDs Tx/Rx for copper 2 LEDs Tx/Rx for fiber optic n°1 1 LED for fiber n°1 breakdown 1 LED for power
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Fan-out |
31 RS485 interfaces, 10 RS422 interfaces
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Input load |
Input load 1/8 UL in RS485 mode
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EMI/RFI protection |
Built-in continuous line surge protection, ESD protection (15 KVeff), HF filtering
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Isolation |
Infinite galvanic isolation through the optic fiber
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CEM |
NF EN 55022 emission, NF EN 61000-6-2 immunity
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Security |
Fiber breakdown self diagnostic, failure is reported on a LED and a relay contact (MOSFET) is activated.
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Power supply |
+9VDC to +36VDC (pluggable screw-in terminal), 2.1W
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Environment |
Temperature from -5°C to +65°C, storage -40°C to +80°C, relative humidity from 0 to 95% RH without condensation
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Dimensions, weight |
107 mm (L) x 88 mm (l) x 25 mm (H), 260 g
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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.
This topology enables to build a simple ring whereas the master equipment is installed in the middle.
NOTE : RD300-OF has reached the end of its life cycle (to know more about its different deadlines click here).
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RD300-OF |
Serial RS232/RS422/RS485 to multimode fiber optic media converter, +9VDC to +36VDC power supply, din rail mounting
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