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Rs485 optical isolator
Rs485 optical isolator








MODEL485OPDR : Rs-485 to Rs-485 Optical ISOlator Repeater. In order to achieve protection, SLAVE device must be powered by other power source than MASTER device (TapHome Core and Modules). The 485OP can be used to optically isolate one piece of RS-485 equipment from the rest an. The isolator must always be installed on the side of one of the protected devices (MASTER) - as close as possible to it. MASTER side is protected device, typically TapHome Core control unit In this case, also power source must be galvanically isolated - the easiest way is to use separate power source.

rs485 optical isolator

This is the most common situation when when connecting TapHome modules in the garden house, or meteo station on the roof.

  • TapHome module or other RS485 device device is connected to TapHome BUS, and the wire or device itself is outside of the lightning protection.
  • External device is powered by other (typically its internal) power source and does not have galvanic or optical isolation.
  • Use of optical isolator is obligatory if one of the conditions is met: Optical isolator protects TapHome control unit when connecting Modbus RTU or other RS485 bus device to it.

    Rs485 optical isolator serial#

    110/240VAC to 12VDC power supply adapter is includedįor alternative RS232 isolation solutions please see our full selection of serial converters and isolators.Optical isolator supports bi-directional "half-duplex" transmission for RS485 networks. The REP-485/422-9E is a high quality external powered industrial bi-directional 2.5KV RS-485/RS-422 isolator / Repeater with 15KV ESD and 600W surge protection. In addition to offering 2 KV isolation on the data lines, it can be used to extend your RS-422/485 circuit an additional 4,000 feet, doubling the range. Power supply and serial cables includedĮxternally powered by 9 - 18 VDC power supply. Model 485OP is an optically isolated RS- 422/485 signal repeater.

    rs485 optical isolator

    Two 4-feet M/F Serial cables and one 110/240VAC to 12VDC power supply adapter is included with each isolator.Īn all-round solid serial RS232 isolator ideal for most industrial environments and applications. Standard DB9 connectors allows easy connection of any standard DB9 serial cable. The power supply is galvanic isolated from the rest of the isolator which ensures noise or surges from the power supply enters the isolator this gives an additional level of isolation.īaud rates of 300 to 115200bps and indication LED lights for TX, RX and Power makes this isolator easy to use and compatible with most serial devices. This isolator must be powered by an external 9 to 18 VDC power supply. High-speed 6N137 opto-couplers from Fairchild Semiconductor is what ensures protection and high performance in this isolator. Static electricity and other high voltage surges is protected against for up to 15KV. Optical isolation for up to 2500 Vrms and continuous 500VDC ensures effective protection against voltage spikes and surges and ground loops. By configuring one side as RS-422 and the other as RS-485, the models can. The optical repeaters/isolators add 4,000 feet (1.2 km) and another 32 nodes to an RS-485 data circuit. What we have here is a high-speed industrial grade RS232 optical isolator which provides isolation for all 8 communication wires. B+B Smartworx Rs-485 Optical Isolator 2 and 3-way isolated optical repeater converts, protects & extends data signals Optical isolation protects your devices from transient surges and ground loops on your data line.








    Rs485 optical isolator