RS232/RS485 naar Ethernet omvormer, Cometh-Field-RD

Met de Cometh-Field-RD kunnen apparaten met een seriële RS232 / RS422 / RS485 interface worden gekoppeld aan Windows-, Unix- en Linux-computers die zijn aangesloten op een Ethernet TCP/IP netwerk. Het is ook mogelijk om te communiceren tussen twee seriële apparaten op afstand via het netwerk of zelfs een Ethernet / MODBUS-gateway te bouwen.

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Product varianten

Artikelnummer Productnaam
0103-1619-0306-01 + COMETH-FIELD-RD + Vraag offerte aan
Din Rail RS232/RS422/RS485 <=> Ethernet (RJ45) + COM port redirection + MODbus TCP


The COMETH Field RD product give access to any serial equipment from Windows, Unix & Linux computers connected to your Ethernet TCP/IP network, making it possible to communicate between two distant serial equipments through the network or even build an Ethernet / MODBUS gateway.

This product features a very high integration and a very small form factor. The support of the Telnet (RFC 2217) extension associated to a COM ports re-director enables distant serial equipments connected to the COMETH Field RD to be directly used by Windows & Linux existing applications using standard COM ports.

COMETH Field RD combines the flexibility and the power of the TCP/IP protocol as well as the universality of the Ethernet networks.


Serial port:
Single asynchronous serial port, up to 230.4 Kbps 7 or 8 bits per character, 1 or 2 stop bits, even, odd, mark, space or no parity Hardware hand-shake (RTS/CTS) and/or software hand-shake (XON/XOFF)
Serial signals:
  • RS232: TxD, RxD (3 Tx signals, 5 Rx signals), RTS, DTR, CTS, DCD, DSR, RI
  • RS422/485: -Tx, +Tx, -Rx, +Rx. +RX and –RX signals can be polarized (jumpers
Male SUB D9 (RS232) & female SUB D9 (RS422/485)
15KV ESD protection with HF signal filtering, CE conformity, RS/Ethernet 1500 Veff isolation
Ethernet network:
Ethernet 10/100 «auto-sensing» & «auto MDI / MDIX cross-over»
Support for TCP Client/Server, DHCP Client, TELNET RFC2217 extension, Telnet Server, COM port re-director (VIP), multipoint or point to point virtual link over UDP modes and MODBUS/TCP Client/Server, MODBUS/RTU & MODBUS/ASCII protocols
From the serial port or through Ethernet (Telnet), firmware download for easy upgrade
Operating systems:
Any compatible TCP/IP system
LED indication:
1 power LED, 1 diag. LED, 1 serial LED & 2 LAN LEDs
Power supply:
External power supply +9VDC to +36VDC
Dimensions & weight:
L73 x l76 x h29 mm, 120 g
Operating temperature: -40°C to +80°C

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