Epson 4SLC2-50 - Manual (Page 26)

External keyboard port (EXT KB)
Use this port to connect any PS/2-compatible pointing device. This
port also supports a mouse/keyboard adapter for attaching both
an external PS/2-type keyboard and a pointing device at the same
time. See Chapter 4 for instructions on installing optional devices.
Connecting the AC Adapter
The AC adapter is designed to be used in most countries, as it can
operate in the ranges 100 to 240 VAC, 50 to 60 Hz (auto-sensing).
Caution
Use only the AC adapter (model number AP-3S25) supplied
with the computer.
If you are using the adapter in a country other than the one where
you purchased your ActionNote, make sure you have the correct
power cable for the electrical socket. See the power cable
specifications in Appendix C for details.
You may need to connect the AC adapter to charge the battery
before you use it for the first time. (See Chapter 3 for complete
instructions on powering the computer with the AC adapter
and/or the battery.)
Setting Up the Computer 1-7