National Instruments cFP-20xx RJ-50 Cable Adapters for Serial Ports

Compact FieldPoint Accessories 2 ni.com
The Compact FieldPoint DB-9 cable adapter cannot be used with
the Compact FieldPoint rack-mount kit. Refer to the Serial Cables
section of the NI catalog or to ni.com for other DB-9 serial cables
that you can use with a rack-mounted Compact FieldPoint system.
RJ-50 Cable Adapters for Serial Ports
NI offers two wiring accessories for use with COM 2, COM 3,
andCOM4onthecFP-20xx controller. COM 2 and COM 3 are
RS-232 serial ports and COM 4 is an RS-485 serial port. All three
ports use RJ-50 10-position modular jacks. These modular jacks
are not compatible with Ethernet cables.
Part numbers 182845-01, -02, and -03 are RJ-50 to DB-9 cable
adapters in 1, 2, and 3 m lengths.
Figure 2. Compact FieldPoint RJ-50 to DB-9 Serial Cable Adapter