2 Equipment Description
2.16 Power Distribution
R688 HPM High-Performance Process Manager Service 97
December 2020 Honeywell
Standard Power System (early production)
Refer to the following figure for the location of the CMOS Battery Backup Assembly mating connector
on the backpanel.
The early production Standard Power System has NiCad batteries located at the upper center of the
Power System chassis backpanel, and the supporting CMOS Battery Backup Assembly is inserted into a
connector at the lower right-hand side of the backpanel. The right Power Supply Module must be
removed to view the assembly. The assembly provides both charging circuitry and a monitoring circuitry
for failure alarm reporting.
See the following figure for an illustration of the CMOS Battery Backup Assembly.
Figure 33 CMOS Battery Backup Assembly (Early Production)
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