TA Triumph-Adler LP 4024 - Manual (Page 231)

Installing Option Units
D-16
D.2.5 Network Interface Card (Models FS-1800 and FS-3800)
Insert the option network interface card into the option interface slot at the
rear of the printer. The network interface card enables the printer to be
used in a network. The FS-1800N/FS-3800N have network interface card
already installed at the factory.
1
Turn off the printer and disconnect the power cord and printer cable.
2
Remove the two screws from the option interface slot cover.
3
Insert the network interface card and secure it with the screws
removed in step 2.
Option Interface
Slot Cover
Screws
Network Interface
Card
Screws