Chapter 2 – Hardware Operation
WalkAbout Computers HAMMERHEAD 3 User’s Guide – v021101
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Charging Batteries
To recharge the battery using the AC adapter, plug the circular
connector of the AC adapter into the AC connector in the
HAMMERHEAD 3 or in the power supply port on the replicator.
Charging begins automatically as the unit is docked when
using a vehicle docking mount, desktop docking station or a
wall mount docking station. The HAMMERHEAD 3 is fully
functional as it charges. Using the unit as it charges will only
slightly lengthen the recharging process. The HAMMERHEAD
3 requires at least 13 v DC for fast charging. Do not use any
external power source other than the AC or DC adapters
provided with the HAMMERHEAD 3; permanent damage to the
battery or computer may occur.
Removable Hard Drive
Please contact WalkAbout technical support 888-872-1100 before
removing the cover plate of the hard drive compartment. Any tampering
of the hard drive will result in a void warranty.
Accessories and Options
The following accessories are available for the HAMMERHEAD 3:
•
Shock absorbing, dockable carrying case
•
Universal AC power adapter 110-250 volts, 50-60 Hz
•
Port replicator, standard, flat or custom cable sets
•
Vehicle cradles and mounting solutions
•
Desktop docking station with communications options
•
Infrared LAN adapter
•
Additional batteries
•
Battery charger
•
Wired and wireless LAN communications
•
CDPD and Public RF radio modem(s)
•
Integrated differential ready GPS receiver
•
Internal display & hard drive heater package
•
External bar code reader/scanner
•
External CD ROM (USB)
•
External 1.44 MB 3.5”bootable floppy disk drive (USB)
•
Keyboard(s)
•
Portable printer
•
Custom integration of components upon request
Chapter 2 – Hardware Operation
WalkAbout Computers HAMMERHEAD 3 User’s Guide – v021101
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Heater Option
The HAMMERHEAD 3 supports an optional heater package
including a LCD heater that greatly improves display readability
in colder environments and a hard drive heater that prevents
drive freezing. You can enable the heaters to automatically
activate while your machine is running, booting or even while it
is turned off. If enabled, the heaters will automatically activate
each time the ambient temperature falls below a predetermined
level.
PCMCIA Cards
PCMCIA cards can be purchased and inserted into the card
slot by the user.
The PCMCIA compartment is sealed from the internal
components of the HAMMERHEAD 3 to prevent dust and
moisture from entering the computer. To insert the PCMCIA
card, take off the hatch plate by removing the two Phillips
screws that hold the PCMCIA hatch cover. The PCMCIA cards
are inserted upside down (i.e. the up arrow on the card should
point toward the back of the HAMMERHEAD 3).
Do not apply
excessive pressure when loading cards.
They should slide
in easily. Remove the card in the same manner. Cardbus
cards are not supported. Forcing Cardbus cards in the
PCMCIA expansion slot could cause damage.
Many PCMCIA devices require connections for
communications (RJ-11 or RJ-45) or antenna for wireless
activity (wireless modems, GPS) or some other external
function. Most PCMCIA devices are too fragile for direct
connections in field environments. In response, WalkAbout
provides a variety of hatch plates with a milled cavity or “lump”
containing combinations of connectors and the cable
assemblies needed to connect to common PCMCIA devices.
For example, a “lump” to accommodate a PCMCIA fax/modem
and network connection includes a RJ-11 and RJ-45
connector. A “lump” for a CDPD modem and wire-line
fax/modem would include an antenna mount and RJ-11. The
“lumps” serve two purposes: 1) they provide for a sturdy and
highly reliable connection not possible when connecting
directly to a PCMCIA device, and 2) they maintain the