HP LaserJet 9000 Printer series - Manual (Page 215)

B Control panel menus 215
Configure device menu
LINK SPEED AUTO
10T HALF
10T FULL
100TX HALF
100TX FULL For an Ethernet network only, sets the network link speed and
communication mode of the HP Jetdirect 10/100TX print
server. The default setting is
AUTO , where the product
automatically configures itself to match the network link speed
(10 or 100 Mbps) and communication mode (half or full
duplex).
Item Options Values Explanation