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Ethernet-to-RS485 Converter mounts on DIN rail.

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Ethernet-to-RS485 Converter mounts on DIN rail.
Ethernet-to-RS485 Converter mounts on DIN rail.
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June 4, 2014 - With Laureate LTNET485, users can connect Ethernet LAN to mix of up to 31 Laureate meters and LT Series transmitters on RS485 bus. Connection to Ethernet is via standard RJ45 jack, and connection to RS485 bus can be via RJ11 jack or via discrete screw terminals. Supplied with RS485 I/O, transmitters can be connected to LTNET485 using 3 or 5 discrete parallel wires, with no need for hub. Laureate meters need to be equipped with RS485 option board with dual RJ11 jacks.

Ethernet-to-RS485 Converter Connects Ethernet to 31 Meters and Transmitters

Laurel Electronics, Inc.
3183-G Airway Ave.
Costa Mesa, CA, 92626

Press release date: May 30, 2014

Costa Mesa, CA – Laurel Electronics, Inc. announces the Laureate LTNET485 Ethernet-to-RS485 converter, which can connect an Ethernet LAN to a mix of up to 31 Laureate meters and LT Series transmitters on an RS485 bus. The unit is mounted on a DIN rail like a transmitter. The connection to the Ethernet is via a standard RJ45 jack. The connection to the RS485 bus can be via an RJ11 jack or via discrete screw terminals. The lines of the RJ11 jack and the screw terminals are wired in parallel.

Laureate LT Series transmitters come with RS485 I/O as a standard feature and can be connected to the LTNET485 using 3 discrete parallel wires (half-duplex RS485) or 5 discrete parallel wires (full-duplex RS485), with no need for a hub.

Laureate meters to be connected to the LTNET485 need to be equipped with an RS485 option board with dual RJ11 jacks. Multiple meters can then be daisy-chained using 6-wire straight-through data cables, with no need for a hub.

Discovery and configuration of Ethernet nodes and their connected RS485 devices can be achieved by two alternate methods using a PC connected to the same LAN as the Nodes: 1) a Console mode which uses Windows-based Node Manager Software, and 2) a Webserver mode which uses a browser to access the public or private IP address of the node. Both methods automatically discover all Nodes on a LAN or WAN, plus any devices connected to each Server Node via an RS485 bus. Configurable parameters include naming the Node and associated devices, and entering email addresses for alarm notification and data requests. Once configuration data has been stored in flash memory of all Nodes, the host PC can be disconnected.

Instruments from other manufacturers can be operated on the RS485 bus under control of the LTNET485 Ethernet-to-Serial Device Server if the host computer supplies commands and accepts responses suitable for these instruments.

Pricing is $150 for 85-264 Vac power or $180 for 10-48 Vdc power. For product specifications and a connection example, visit

For more information, contact Harald Weiss, Director of Marketing, at 714-434-6131, email

Founded in 1990, Laurel Electronics, Inc. is a leading U.S. manufacturer of programmable industrial digital panel meters, counters, timers, and DIN rail transmitters.
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