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Dial UP Internet modem external GVC SF1156V/RF Serial port (RS-232), TAIWAN | eBay
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RS-232 Connections That Work: Connecting Devices or Converters - Advantech
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File:External rs232 serial dialup fax modem.jpg - Wikimedia Commons
1 The 9-Pin Connector Pin abbreviations (numbers in parentheses are the 25D pin numbers): 1. CD (8) 2. RD (Rx) (3) 3. TD (Tx) (2) 4. DTR (20) 5. SG (Ground) - ppt download
Comunicazione seriale
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Cablaggi Seriali
