Texas Instruments 900 Series User Manual page 55

Using Connectors and Ports
Caution: Use only the supplied AC adapter
!
with your computer. Other adapters can cause
serious damage to the electronic circuits.
2-32
DC In
Parallel
(25-pin)
Serial
(9-pin)
External
Monitor
(15-pin)
Connects the AC adapter output
connector to this jack to recharge
the battery and supply power to the
computer
Connects to a parallel printer or
other device that uses a standard
parallel interface; EPP/ECP
compatible; also connects to the
floppy disk drive when used
externally
Connects to external devices such
as a serial printer. 16550 UART
compatible
Connects to an external analog
monitor