DB9/RJ45 Modular Adapter Set
The modular adapter set consists of one DB9 Female/RJ45 adapter and one DB9 Male/RJ45 adapter.
An RJ45 cable is then used to connect the two adapters together. This is used in place of a serial cable.
Note: pins 1 thru 8 are connected but pin 9 isn't used as the RJ45 cable has only 8 wires and not 9 wires like the serial cable.