Ethernet Jumpers - Mita DP-2800 Instruction Handbook Manual

A.2 Ethernet Jumpers
There are two jumpers that affect Ethernet operations: Automatic/Manual (JP4),
Automatic Sensing (JP3).
The Automatic/Manual jumper causes the EcoLAN 1000E to select Ethernet
network type automatically when not in the MA position. In the MA position, the
selection is covered by the Manual Selection jumper.
Jumper Settings Appendix A- 3