3-12
Installing an LPU
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A switch requires at least one main process unit (MPU), one LPU and six switching fabric modules.
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The S12500 does not support intermixing of the MPU, LPU, and switching fabric modules.
MPUs, LPUs and switching fabric modules are installed at different positions as follows:
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MPUs and LPUs are installed in the front part of the chassis, where Slot 0 and Slot 1 are for MPUs
and other slots are for LPUs.
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Switching fabric modules locate in the rear part of the chassis.
LST1XP32REB1 and LST1XP32REC1 respectively have three areas that are designed on their
integrated circuit boards and marked as “
HAND OPERATION AREA
”, as shown in Figure 3-14. Hold
the two LPUs by these three areas only because improper operation may damage the LPUs.
Figure 3-14
“HAND OPERATION AREA” sign on LST1XP32REB1/LST1XP32REC1
HAND
OPERATION
AREA
MPUs, LPUs, and switching fabric modules are installed in a similar way. An MPU is taken as an
example here.
Installation Preparation
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Put on an ESD-preventive wrist strap and make sure that the wrist strap is properly grounded.
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Remove the blank panel (if any) from the slot to be used.
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Prepare the board to be installed.
