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About the PathBuilder S24x, 26x, and 27x switch 1-13
Hardware Components
FLASH SIMM The FLASH Single In-line Memory Module (SIMM) holds a compressed image of
the operating software. This module is electrically erasable and reprogrammable.
An optional FLASH SIMM can be installed for backup. These modules are installed
in one of the SIMM slots (1 or 2). Figure 1-8 shows the SIMM.
Figure 1-8. FLASH SIMM
Note
The chips on your SIMM may vary from the one shown inFigure 1-8.
CMEM SIMM The Configuration Memory Module (CMEM) SIMM has 512 Kbytes of memory and
provides the real time clock function. The CMEM is backed up by a lithium battery
in case of a power disruption.
Each PathBuilder S24x, 26x, and 27x switch has a Software Serial Number (SSN)
burned into a PROM located on the CMEM card. This SSN is used to verify the
software options that are enabled for that node. It is on the CMEM SIMM card for
easy removal and replacement in case of a motherboard failure.
The CMEM is installed in the SIMM slot (see Figure 1-7 for slot location).
Figure 1-9 shows the CMEM.
Warning
Only qualified service personnel should perform the procedure described in this
section. If the battery is installed incorrectly, it could explode after the PathBuilder
S200 series switch product is powered up, damaging the unit.
Avertissement
Seules des personnes qualifiées peuvent mettre en pratique les procédures décrites
dans cette section. Si la batterie n’est pas correctement installée, elle risque
d’exploser après la mise en marche du produit PathBuilder S200 series switch et
d’endommager l’unité.
Warnung
Die in diesem Abschnitt aufgeführten Vorgänge sollten ausschließlich von
qualifiziertem Servicepersonal durchgeführt werden. Wenn die Batterie
unsachgemäß installiert wird, kann sie nach dem Einschalten des PathBuilder S200
series switch-Produkts explodieren