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2 Review Safety Requirements
2. 10 Battery Replacement on the M9037A Controller
CMOS Backup Battery
Danger of explosion if
battery is incorrectly
replaced.
Replace only with the
same or equivalent type
recommended.
Discard used batteries
according to man-
ufacturer's instructions.
Follow proper disposal
process. Only dispose of
old battery according to
local codes.
All electric and electronic
equipment are required to
be separated from normal
waste for disposal.
NOTE
Typical battery life varies
considerably and
depends on operating
temperature and standby
(shutdown) time of the sys-
tem. Typical life expect-
ancy of a 190 mAh battery
is 4 to 5 years with an aver-
age on-time of 8 hours
per working day at an
operating temperature of
30°C. To ensure that the
lifetime of the battery has
not been exceeded, you
should change the battery
after 3 to 4 years of ser-
vice.
14
Keysight S9106AC-2IF and S9106AC-4UP 5G FR1 Multi-port Transceiver Solutions, Startup Guide
Keysight's M9037A is equipped with a 3.0 V
"coin cell" lithium battery. This battery powers
the clock circuit and retains configuration
memory in CMOS RAM while the system is
turned off.
To replace the CMOS Backup Battery
1. Turn off power to the PXIe chassis.
2. Remove the M9037A embedded con-
troller from the chassis. Observe all
anti-static precautions.
3. Locate and remove the battery. Press
the battery release latch (1). The bat-
tery should pop out (2).
4. Place the new battery in the socket.
Make sure that you correctly orient the
battery for installation. The positive
pole (+) must be on the top. You may
find it helpful to angle the battery in
and pull back on the battery release
latch.
Replace the lithium battery with an
identical battery (BR2032 or equi-
valent).
5. Install the embedded controller back
in the PXIe chassis and apply power.
The battery's operational temperature
range is less than that of the M9037A's
storage temperature range. For exact
range information, refer to the battery
manufacturer's specifications.
See the Data Sheet for the
Keysight M9037A,
5991-3661EN.
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