Additional Hardware Components - HP Compaq Presario,Presario CQ42-121 Maintenance And Service Manual

Additional hardware components

Component
(1) Power cord*
(2) AC adapter
(3) Battery*
*Power cords vary in appearance by country or region.
WARNING!
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
(included with select models only) outside the country or region in which you purchased the
computer, you must obtain a country- or region-specific modem cable adapter (included with select
models or purchased separately). The modem must be connected to an analog telephone line using a
6-pin, RJ-11 modem cable (included with select models only). 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.
ENWW
Connecting the internal analog modem to a digital line can permanently damage the
Description
Connects an AC adapter to an AC outlet.
Converts AC power to DC power.
Powers the computer when the computer is not plugged into
external power.
Additional hardware components 23