Description – Westermo SD-300 User Manual
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1. Description
The SD-300 is a serie of Industrial Ethernet 3-port switches.
Several variations are available ranging from a version with three RJ-45 TX (copper) ports
to versions having two FX (fibre) and one TX port.
All TX ports support auto-negotiation, but DIP-switches also allow speed and duplex
configuration of any individual TX port.
The SD-300 series has been designed to meet high industrial specifications, providing
very high dependability in harsh environmental conditions.
Features:
• Flexible mix of TX (copper) and FX (fibre) interfaces
• TX chassies individually isolated
• Wide DC Power Range 18–48 VDC
• LED indicators for Power, Speed, Duplex, Link and Traffic.
• 35 mm DIN rail mounting
Example of applications are:
• 3-port switch
• Fibre repeater, with service port
• Fibre to copper converter
• Singlemode to Multimode fiber converter
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