Sharp UP-3500 Instruction Manual page 10

Opening the side cover
While moving the release lever towards you, pull
the side cover and rotate the cover upward
as shown in the illustration at the right.
Terminal Connection/slot inside the side cover
Note: The application software will determine the usage and availability of the external port.
8
RS232 port
RS-232C
RESET
CH5
Side cover
SD card slot
RESET Switch
DO NOT move the reset switch unless
instructed to do.
Doing so may damage or delete the data.
Release lever
(located at the bottom cabinet)