3Com 3C589D User Manual page 17

Connecting the LAN PC Cards 2-5
a Attach the BNC T-connector to the PC Card COMBO
cable BNC port.
b Connect the BNC T-connector to the network cable.
c Slide the PC Card all the way into the PC Card slot.
CAUTION: Do not force the PC Card into the slot or you
may bend the pins inside the slot.
You may get messages from Windows 95 and Windows NT
about installing the network driver. To install the network
driver, go to Chapter 3.