IBM 8265 Nways ATM Switch, Руководство пользователя

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Chapter 10. Managing the Intelligent Cooling Subsystem
The Intelligent Cooling Subsystem in the 8265 helps prevent:
Ÿ Damage to the switch and all installed modules
Ÿ
Loss of configuration information
The default temperature threshold is the maximum internal switch temperature for normal switch operation.
Ÿ The allowable ambient temperature operating range is 0 °C to 40 °C (32 °F to 104 °F).
Ÿ
An overheat condition exists when internal switch temperature exceeds the default temperature
threshold.
Ÿ The default internal operating temperature threshold for the switch is 60 °C (140 °F) or higher.
This chapter describes:
Ÿ Operating temperature and fan status indicators
Ÿ Overheat conditions and recovery actions
Ÿ The automatic 8265 module power-down strategy.
Operating Temperature and FAN Status Indicators
The controller modules in the 8265 are equipped with LEDs that illuminate when the operating
temperature is exceeded or a fan unit fails.
These indicators work on the active controller only, as the standby controller does not monitor 8265
operating conditions.
Operating Temperature Indicators
The Temp LED on the active controller module blinks to warn you of an internal overheat condition.
When switch internal operating temperature rises above the temperature threshold, the following occurs:
1. A built-in temperature sensor detects the rise in switch internal operating temperature.
2. The Temp LED on the active controller module blinks.
3. The active controller module sends an alert to the system administrator.
The overheat indication stops when switch internal operating temperature falls below the temperature
threshold for at least 15 minutes. Correct the overheat condition promptly to avoid possible hardware
damage (only the active controller module indicators report switch operating conditions.)
Table 3 on page 114 describes controller module LEDs associated with switch internal operating
temperature.
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Copyright IBM Corp. 1994, 1998
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