Juniper Systems Allegro CX Manual - Manual (Page 60)

60 Allegro CX Owner’s Manual
SRAM Card Battery
SRAM cards are powered by the Allegro while installed in the PC
card slot. An on-board card battery retains data when the card is
not being powered by the Allegro. 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 include information on battery
life and recommended changing intervals.
Replacing SRAM Card Batteries
SRAM card batteries are readily available at most stores. Unless the
manufacturer’s instructions state otherwise, we recommend that you
change the battery every six months.
Formatting Cards
The ATA Flash cards and Compact Flash cards come pre-formatted.
Files and directories can be copied onto it just like a standard disk
drive.
Inserting and Removing Cards
For details on how to access the PC card slot and insert and remove
cards, refer the PC Cards section of Chapter 2.