Apple Macintosh 6500 - Manual (Page 208)

Installing a communication card
This section contains instructions for installing an Ethernet or internal
modem card in the communication slot in your computer. You use an
Ethernet card to communicate with other computers through a local area
network (LAN). For example, you can print on a shared printer and access
documents on a server (a centralized computer that provides shared resources
to other computers on a network). You use an internal modem card to connect
to online services or the Internet.
Note: If you install an internal modem card in the communication slot and
also want to connect to an Ethernet network, buy and install the kind of
Ethernet card that goes in your computer’s PCI slot, then follow the
instructions in “Installing a PCI Card” earlier in this section.
Some communication cards designed for other communication slots are not
compatible with your computer and cannot be installed here. You can tell by
examining the placement of the notches on the card. Use the following
illustration as a guide if you’re not sure you have the correct type of card for
the slot.
Vertical plate
Compatible
Compatible
Notches
Logic board
(side view)
Communication slot
Communication card
Notches
Not compatible
Notches
208 Appendix B