Fujitsu PRIMERGY RX2540 M7 Upgrade And Maintenance Manual page 483

Additional interfaces
Disconnecting the serial interface
Figure 326: Disconnecting the serial interface
▶ Disconnect the serial interface cable (see circles).
▶ Remove the serial interface cable from the system board.
Removing the expansion card with the serial interface
Figure 327: Removing the serial interface
RX2540 M7 Upgrade and Maintenance Manual 483