RS PRO D Sub Adapter Male 25 Way D-Sub to Female 25 Way D-Sub

A 25-pin 'D' connector modem adaptor for use in cases where a cable or modem installation requires a transmit-data/receive-data cross-over connection. Within the unit pins 2 and 3 are crossed over (2-3//3-2), and all other lines are wired pin to pin straight through.The units are of moulded PVC construction and are fully screened against RFI/EMI interference. They are supplied in M/F format to produce no gender change while in line, and come complete with locking hardware. 100MΩ insulation resistance. 300V operating voltage, durability of 500 mating cycles.