Nokia IP1220 Installation Guide - Page 28
Site Requirements, Safety Warnings and Cautions, Fan Unit - power requirements
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1 Overview Power Supply Status LEDs The power supply status LEDs provide the status of the power supplies as described in Table 8. Table 8 Power Supply Status LEDs LED LED status Meaning Fault Red Power supply has a voltage problem and power was turned off. or One power supply in a redundant system is not turned on. Over Temp Yellow Power supply has an internal temperature problem. All power to the unit is turned off. After the internal temperature returns to normal, power will be turned back on. PWR OK Green Power is on and the power supply is functioning properly. Fan Unit The IP1200 Series appliance fan unit is a single unit made up of eight individual fans to provide the air flow required to maintain a proper operating temperature. The fan unit can provide proper airflow for a short time even if an individual fan fails. Caution If an individual fan fails, replace the fan unit as soon as possible. For information about how to replace a failed fan unit, see "Installing a Fan Unit" on page 107. The system status LEDs on the front panel of the appliance show the status of the fan unit. For more information about the system status LEDs, see "System Status LEDs" on page 23. Site Requirements Before you install an IP1200 Series appliance, ensure that your computer room or wiring closet conforms to the environmental specifications listed in Appendix A, "Technical Specifications." Safety Warnings and Cautions Warning Hazardous radiation exposure can occur if you use controls, make performance adjustments, or follow procedures that are not described in this document. 28 IP1220 and IP1260 Security Platforms Installation Guide