18663: Null Modem Cable, 9-Pin PIn (Male) to 9-Pin Pin (Male)
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Network Serial Port Kit User Manual - Using Different Null-Modem Schemes
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Should I Use Null Modem or Straight Through Serial Cables? - NI
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RS-232 Null modem cable
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RS232 Null-Modem Cable DB09FF -- DataPro
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Null-Modem Serial Cables
Crossover or "Null Modem" vs. Straight Through Serial Cable - Decisive Tactics, Inc.
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Null-Modem Serial Cables
Null Modem RJ45-DB9 (Female) Adapter for C2-RJ45 Console Cable - Get Console Shop
