Ethernet-to-RS485 Converters & Device Servers

For connection of up to 31 Laurel meters and transmitters to the Ethernet via an RS485 bus.

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DIN Rail Mounted Ethernet to RS485 Device Server

Overview

Two models interface a mix of up to 31 Laurel meters and transmitters to the Ethernet via an RS485 bus.
Model LTNET485 is DIN rail mounted, connects to Laureate meters via an RJ11 jack and 6-wire data cables, and to Laureate transmitters via discrete parallel wires.
The Ethernet-to-RS485 converter board fits all Laureate meters, connects to Laureate meters via an RJ11 jack and 6-wire data cables.
Ethernet connection is via a standard RJ45 jack.
Ethernet and RS485 devices are easily discovered and configured via Windows-based Node Manager software.
DHCP server capability assigns a local IP address to the server and computer if necessary.

LTNET485 DIN Rail Ethernet-to-RS485 Converter & Device Server

The DIN rail mounted LTNET485 DIN Rail Ethernet-to-Serial Device Server provides a 10/100BaseT interface to the Ethernet and serves as an Ethernet-to-RS485 converter and device server for a mix of up to 31 Laurel meters and transmitters on an RS485 bus. The Ethernet connection 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.

The LTNET485 can be connected to Laureate LTA transmitters or LTM transmitters using screws terminals and 3 discrete parallel wires (half-duplex RS485) or 5 discrete parallel wires (full-duplex RS485), with no need for a hub. All Laureate transmitters come with RS485 I/O as a standard feature. The transmitters can be any mix of analog input types (voltage, current, AC, DC, strain gauge, load cell, thermocouple, RTD, ohms) and pulse input types (frequency, rate, totalizing, quadrature position or rate, period, elapsed time, sum, difference or ratio of two inputs).

The LTNET485 can be connected to 1/8 DIN Laureate digital panel meters, counters and timers if these are equipped with an RS485 option board with dual RJ11 jacks (digital interface ordering option 2). Multiple meters can then be daisy-chained using readily-available commercial 6-wire straight-through data cables (not crossover cables), with no need for a hub.

Ethernet-to-RS485 Converter & Server Board for Laureate 1/8 DIN Meters

The Ethernet-to-RS485 Converter Board plugs into a host 1/8 DIN digital panel meter, counter or timer to provide a 10/100Base-T Ethernet interface via an industry-standard RJ45 jack for that meter. It also provides an RJ11 jack for interface to an RS485 bus, which can support up to 31 Laurel meters equipped with Laurel's RS485 interface board. That board features dual RJ11 connectors for RS485 daisy-chaining using commercial 6-wire RJ11 data cables, with no need for a hub.

Laurel's Ethernet Node Manager software is shipped on a mini CD with each Ethernet board. This free Windows-based application automatically discovers all Laurel Nodes (or Laurel Ethernet boards) on a LAN or WAN, plus any meters connected to the Nodes. These will be the host meter for Ethernet-to-RS485 converter board, plus any meters and transmitters on the RS485 bus. Node Manager software is also used to configure each Node, such as naming the Node and associated devices, entering email addresses for alarm notification and data requests, selecting the Node's time zone for time-stamping of streaming data, and setting communication parameters for associated meters.