Cable Spec 41 - NULL MODEM Crossover DB9 to DB25 Pinout

This pinout is the null modem standard that works with all MiiC benders that use the MiiC BSC protocol.

If you purchase a pre-made null-modem cable, it will most likely contain this pinout schematic. A purchased cable may also contain DB9 pin 9 to DB25 pin 22 RI - "ring indicator". Since the RJ45 adapters have eight wires, it is necessary to omit this last connection.