112768 Rev. B
E-1
Appendix E
Replacing PCMCIA SRAM Memory Card Batteries
(BayStream Only)
A 3-V lithium “coin-type” battery, specified in
Table E-1
, provides backup power
to the PCMCIA SRAM memory card, allowing it to be removed from the
BayStream router module for approximately 30 minutes without loss of stored
data.
To replace the 3-V lithium battery:
1.
Insert a slender pointed object, such as the end of a paper clip, into the
hole on the upper side of the SRAM card (near the battery holder).
2.
Release the battery holder by pressing the paper clip inward and pulling
the battery holder straight out of the card.
Table E-1.
PCMCIA SRAM Battery
Specification
Diameter
23.0 mm
Thickness
2.5 mm
Weight
3.2 g
Type
CR235 (or equivalent)
Caution:
While the PCMCIA SRAM card is installed in a BayStream
hardware platform, there is no drain on the 3-V lithium battery. Battery drain
occurs only when the PCMCIA SRAM card is removed from the BayStream
platform. To ensure data integrity, we recommend that the battery be
replaced yearly.
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