2810 HD/20 (250-3551) Adding an External Keyboard Faxback Doc. # 1811 You can connect an external keyboard (25-4032) to your computer's built-in external keyboard port. 1. Prepare the keyboard according to its user's guide. 2. Turn off your computer. 3. Connect the Mini-Din keyboard's connector to the connector on the computer's left side labeled EXT.KB. Note: Both the computer's keyboard and an external keyboard can be used at the same time with the computer. (jej-05/10/94)