Printronix Integrated Network Interface Card - Manual (Page 47)

TCP/IP Network
43
Network Configuration
The network configuration allows you to specify the setting for each
network protocol. Beside each protocol name is a checkbox which
allows you to enable or disable each protocol depending on your
network printing needs.
NOTE: TCP/IP is the only supported protocol which is always
enabled.
TCP/IP Network
Figure 4. TCP/IP Network Configuration for Wired Ethernet