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Amazon.com: MOXA NPort 5232 w/Adapter - 2 Ports RS-422/485 Device Server, 10/100 Ethernet, Terminal Block, 15KV ESD, 12-30VDC, 0 to 55°C Operating Temperature : Electronics
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Amazon.com: MOXA NPort 5230 2-Port Device Server, 10/100 Ethernet, RS-232 x 1, RS-422/485 x 1, Terminal Block : Electronics
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