Juniper Systems Allegro DOS Manual - Manual (Page 53)

Allegro DOS Owner’s Manual 53
The PC card slot accepts Type I or Type II cards. These cards include
ATA Flash cards, SRAM (Static Random Access Memory), and
Compact Flash cards. All types of cards have a 68 pin connector for
attachment to the Allegro. The cards must be 5 V or 5 V/3 V (PC
cards that are 3 V only are not supported). This is a 16 bit card slot. It
is not a card bus slot.
A PC memory card is a solid state, self-contained memory board
housed in a credit card-sized package. These cards behave like hard
disks. You can read from them, write to them, and erase single fi les
from them. There are several types and brands of cards available.
ATA Flash Cards
ATA Flash cards provide solid state data storage. Power is
not required to maintain the data. Because of this feature, we
recommend them over other types of memory cards. The Allegro
accepts cards ranging in size from 1 M to 100 M.
Formatting ATA Flash Cards
ATA Flash cards come pre-formatted. If you need to format a card,
enter the following command into the Allegro from the DOS prompt:
Format D: /u
❖ Warning: Formatting the ATA Flash card deletes everything previously
stored on the card. For more information on using FORMAT, refer to the
MS-DOS Help.
S RAM Cards
Power
SRAM cards are powered by the Allegro while installed in the PC
card slot. An on-board battery retains data when the card is not being
powered by the Allegro. Some brands have a replaceable lithium
battery (coin type). If you have this type, make sure that the battery
is installed before attempting to use the card. Other brands have a
rechargeable battery that is automatically recharged while it is inside
the Allegro. The rechargeable batteries are not replaceable.
The life of these batteries varies greatly depending on usage and
the memory size of the card. If the lithium battery is drained,
the information stored on the card is lost. When a new battery
is installed, the card needs to be formatted. The manufacturer’s
instructions that came with the card should include information on
battery life and recommended changing intervals.