Product category:
Plant- and Machine-Wide Communications
News Release from: Westermo Data Communications | Subject: SD-300 3-port industrial ethernet switches
Edited by the Engineeringtalk Editorial
Team on 08 March 2004
Industrial ethernet switches feature
three ports
Westermo Data Communications is releasing a new range of industrial ethernet switches designed to provide very high dependability in harsh environmental conditions.
Westermo Data Communications is releasing a new range of industrial ethernet switches designed to provide very high dependability in harsh environmental conditions Unusually, they are 3-port types, which not only offer competitive prices but are also more flexible in many industrial applications
This article was originally published on Engineeringtalk on 30 May 2003 at 8.00am (UK)
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The SD-300 range includes industrial 10/100 Mbit/s ethernet 3-port switches with several variations, ranging from a version with three RJ-45 TX (copper) ports to versions with a mixture of FX (fibre) and TX (copper) ports.
The SD-300 switches can be used in a variety of ways.
The SD-330 three port 10/100mbit/s TX switch can be used to provide very simple connections in a standalone panel between a PLC and HMI while leaving a free port to connect to a laptop for programming.
The 3-port TX model also provides total galvanic isolation between the screen connections hence isolating equipment potentially up to 200 metres apart.
The SD-321 model with one fibre optic port is ideal if a star network is required; up to 8 of these can be connected to a Westermo U-208-F8-MM FastSwitch, providing 2 copper TX connections at each remote site.
The SD-312 model with the two fibre optic ports is ideal for creating bus structures or to be used as a repeater in a network.
As the SD312 is a switch there is really no limit to the number of drop points as packets are regenerated and checked by each switch.
All TX ports support auto-negotiation.
DIP switches also allow any TX port to be configured manually.
The SD-300 series offers a wide range of DC power options, 35mm DIN rail mounting and LED indicators for Speed, Duplex, Link and Traffic, Autonegotiation or individual port speed/duplex control.
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