RS232 serial null modem cable wiring and tutorial - Lammert Bies
Crossover or "Null Modem" vs. Straight Through Serial Cable - Decisive Tactics, Inc.
Null Modem Cable, DB9 Female to Female, 25' — Tera Grand
QVS DB-9 RS 232 Serial Female to DB-9 RS 232 Serial Female Null Modem Cable 6 ft. - Beige - Micro Center
Null modem cable
Null Modem DB9 Female to Female - 28 AWG PVC Jacket - Serial Data Cabl - Custom Cable Connection
Null modem cable
StarTech.com Null-Modem Serial Cable - Extend your EGA monitor cable or mouse cable by 6ft - 6ft rs232 cable - 6ft db9 cable - 6ft db9 serial cable -6ft straight through serial