3com S7906E Guide D’Installation Rapide

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Figure 1-7 Front panel of the S7910E 
 
(1) Fan tray 
(2) Jack for ESD-preventive wrist strap 
(3) Power module 
(4) LPUs (in slot 0 to slot 4 and slot 7 to slot 11) 
(5) SRPUs (in slot 5 and slot 6) 
 
All the modules of the S7910E are hot swappable.  
The S7910E has twelve horizontal slots. SRPUs are inserted in the middle two slots (see callout (5) 
in 
). SRPUs are required and support active-standby switchover. Different LPUs are 
inserted in the other ten slots (see callout (4) in 
). 
The fan tray is installed on the right side of the chassis (see callout (1) in 
). 
The two power modules, which sit in the lower part of the chassis (see callout (3) in 
), 
provide 1+1 redundancy backup. You can select either AC power supply or DC power supply.  
S7906E-V 
 shows the front panel of the S7906E-V.