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Moxa - NPORT 5450I-T - 4-port RS-232/422/485 device server with DB9 connectors,12-48VDC power input,2K - Allied Electronics & Automation, part of RS Group
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Amazon.com: MOXA NPort 5450 w/Adapter - 4 Ports Device Server, 10/100 Ethernet, RS-232/422/485, DB-9, 15KV ESD, 110V Adapter Included : Electronics
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