The CSNULL9FF-5A is a 5ft deluxe null modem Cable Assembly with DB9 female to DB9 female connectors. The CSNULL series of cable assembly features the same construction as the CSMN series but are wired to the most common null modem wiring schemes. The transmit data and receive data signals are crossed to allow two DTE or DCE devices to communicate. All assembly utilize 26AWG stranded conductors with foil shielding for flexibility and performance. Backshells are fully molded with copper shielding for better immunity to EMI/RFI. Mating hardware is 4-40 thumbscrews which makes securing without tools quick and easy.