Technical Documentation
Maintaining the TX Matrix Fan Trays
Purpose
For optimum cooling, verify the status of the fans.
Action
To display the status of the fans in the TX Matrix router, issue the show chassis environment scc command. The output is similar to the following:
user@host> show chassis environment sccscc-re0:
--------------------------------------------------------------------------
Class Item Status Measurement
Temp PEM 0 OK 27 degrees C / 80 degrees F
PEM 1 OK 27 degrees C / 80 degrees F
Routing Engine 0 OK 34 degrees C / 93 degrees F
Routing Engine 1 OK 34 degrees C / 93 degrees F
CB 0 OK 33 degrees C / 91 degrees F
CB 1 OK 32 degrees C / 89 degrees F
SIB 0 OK 42 degrees C / 107 degrees F
SIB 0 (B) OK 41 degrees C / 105 degrees F
SIB 1 OK 42 degrees C / 107 degrees F
SIB 1 (B) OK 41 degrees C / 105 degrees F
SIB 2 OK 43 degrees C / 109 degrees F
SIB 2 (B) OK 42 degrees C / 107 degrees F
SIB 3 OK 44 degrees C / 111 degrees F
SIB 3 (B) OK 42 degrees C / 107 degrees F
SIB 4 OK 43 degrees C / 109 degrees F
SIB 4 (B) OK 43 degrees C / 109 degrees F
FPM GBUS OK 28 degrees C / 82 degrees F
FPM Display OK 32 degrees C / 89 degrees F
Fans Top Left Front fan OK Spinning at normal speed
Top Left Middle fan OK Spinning at normal speed
Top Left Rear fan OK Spinning at normal speed
Top Right Front fan OK Spinning at normal speed
Top Right Middle fan OK Spinning at normal speed
Top Right Rear fan OK Spinning at normal speed
Bottom Left Front fan OK Spinning at normal speed
Bottom Left Middle fan OK Spinning at normal speed
Bottom Left Rear fan OK Spinning at normal speed
Bottom Right Front fan OK Spinning at normal speed
Bottom Right Middle fan OK Spinning at normal speed
Bottom Right Rear fan OK Spinning at normal speed
Rear Tray Top fan OK Spinning at normal speed
Rear Tray Second fan OK Spinning at normal speed
Rear Tray Third fan OK Spinning at normal speed
Rear Tray Fourth fan OK Spinning at normal speed
Rear Tray Fifth fan OK Spinning at normal speed
Rear Tray Sixth fan OK Spinning at normal speed
Rear Tray Seventh fan OK Spinning at normal speed
Rear Tray Bottom fan OK Spinning at normal speed
Misc CIP 0 OK
CIP 1 OK
SPMB 0 OK
SPMB 1 OK Top Left and Top Right refer to fans in the upper front fan tray; Bottom Left and Bottom Right refer to fans in the lower front fan tray.
To display the status of the fans in the routing matrix (TX Matrix router and all T640 routers), issue the show chassis environment command. To display the status of the fans in a specific T640 router, issue the show chassis environment lcc lcc-number command, where lcc-number is the chassis ID of the router and can be from 0 through 3.
 | Note: The speed of the fans in the rear fan tray of a T640 router is affected by the temperature of the T640-SIB main board (displayed as SIB n ), not by the temperature of the T640-SIB mezzanine board [displayed as SIB n (B)]. |
