RJ-45 to DB-9 Configuration
Connect the pins on the RJ-45 connector to the pins on the DB-9 connector as follows:
RJ-45 Pin
Wire Color
DB-9 Pin
Signal
3
Black (or Light Orange)
1
RCV+
4
Red (or Light Green)
5
XMIT-
5
Green (or Solid Green)
6
RCV-
6
Yellow (or Solid Orange)
9
XMIT+
Table 11 RJ-45 to DB-9 Configuration
The above configuration can be used whether the DB-9 connector is male or female, because the cables are straight-through with no cross-overs as found in a null modem.