HP Compaq Presario CQ42-210AU Notebook PC - Manual (Page 21)

Additional hardware components
Component Description
(1) Power cord* Connects an AC adapter to an AC outlet.
(2) AC adapter Converts AC power to DC power.
(3) Battery Powers the computer when the computer is not plugged into
external power.
*Power cords vary in appearance by country or region.
WARNING! Connecting the internal analog modem to a digital line can permanently damage the
modem. Immediately disconnect the modem cable if you accidentally connect it to a digital line.
NOTE: Telephone jacks vary by country or region. To use the modem and the modem cable outside
the country or region in which you purchased the computer, you must obtain a country- or region-specific
modem cable adapter (purchased separately). The modem must be connected to an analog telephone
line using a 6-pin, RJ-11 modem cable. Jacks for digital PBX systems may resemble analog telephone
jacks, but they are not compatible with the modem.
If the modem cable contains noise suppression circuitry, which prevents interference from TV and radio
reception, orient the circuitry end of the cable toward the computer.
Components 11