Epson 5000/5500 - Manual (Page 91)

Interface Cards
You can use optional interface cards to supplement your printer’s
built-in parallel interface.
The Epson interface cards below are compatible with your printer.
(Not all interfaces are available in all countries.)
Model Number
Name
C823051/C823061 Serial interface card
C823071/C823081 32KB serial interface card
C82310* 32KB parallel interface card
* Substitute for last digit, which varies by country.
If you are unsure whether you need an optional interface or would
like to know more about interfaces, contact your dealer.
Installing an interface card
Follow the steps below to install an optional interface card.
1. Make sure the printer is turned off. Unplug the printer’s power
cord and disconnect the interface cable.
4-14 Using Printer Options