Lexmark Optra C710 Setup Manual page 27

Warning!
The hard disk
adapter must be installed in
option 3 on the system board.
System board
Option 1
Option 2
Option 3
You can install any adapter combination in the three
option slots. If you install two tri-port adapters, your
printer can support two serial ports (but only one receive-
only fax port), one LocalTalk port, and one infrared port.
If you are installing one adapter, install it in the open slot
farthest from the printer.
Interconnect board
Installing adapters
23