3com 8814 User Manual

Page of 104
Fabric Modules
17
Fabric Modules
The Switch Fabric serves as the core of the Switch 8800 Family.The following fabric 
models are available to the Switch 8800 Family:
3C17508 - 3Com Switch 8800 360 Gbps Fabric
3C17539 - 3Com Switch 8800 720 Gbps Fabric
These fabric modules provide:
Route calculating and forwarding table maintenance.
Integrating Crossbar switching fabric to accomplish service exchange between 
different boards.
System configuration and monitoring functions, which allows the system to 
monitor other boards and upgrade/reset service board software.
360 Gbps Switch Fabric
Technical specifications
This model applies to the 3C17508. See Table 5 for its specifications.
Panel
On its panel, the 360 Gbps Switch Fabric provides a CF port, CF LED (CFS), 
10Base-T/100Base-TX port, RS232/485 port, Console port, AUX port, RESET 
button, I/O module status LEDs, and 360 Gbps Switch Fabric status LEDs (SFS, 
ACT, ALM, RUN) in turn, as shown in Figure 10.
Table 4   LEDs on fan tray panel
LED 
Color 
Status 
Status 
RUN 
Green 
OFF 
The fan tray is faulty. 
ON 
The fan tray is operating normally. 
ALM 
Red 
OFF 
The fan tray is operating normally. 
ON 
The fan tray is faulty.
Table 5   360 Gbps Switch Fabric specifications
Item 
Specifications 
CPU 
MPC755 
Boot ROM 
512 KB 
SDRAM 
512 MB (expandable to 1 GB) 
Physical dimensions (W x D)  366.7 x 340 mm (14.4 x 13.4 in.) 
Port 
One Console port, for local configuration management
 
One AUX port, for remote dialup configuration management
 
One 10Base-T/100Base-TX port, for software upgrade and 
network management
 
One RS232/485 port, for connecting external PoE power frame 
to provide the PoE function
 
One hot-swap-supported CF port 
Max power consumption 
60 W