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Cisco Catalyst 5000 Series Switches

Catalyst 5002 Switch AC-Input Power Supply with PFC

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Catalyst 5002 Switch
AC-Input Power Supply with PFC
Product Description

Catalyst 5002 Switch
AC-Input Power Supply with PFC
Product Description

Product Number:
Catalyst 5002 (AC-Input Power with PFC)---WS-C5002

This note provides technical specifications and usage guidelines for the Catalyst 5002 switch with dual AC-input power supplies with power factor correction (PFC).

The AC-input powered Catalyst 5002 switch is shown in Figure 1.

This note contains the following sections:


Figure 1: Catalyst 5002 with AC-Input Power


Specifications

The AC-input power supply technical specifications are listed in Table 1.


Table 1:
Item Description

Power supply output capacity

175W maximum configuration, 120W typical

System power dissipation

155W maximum configuration, 100W typical

System heat dissipation

950 Btus1/hr. maximum

AC-input voltage

90 to 264 VAC autoranging

AC frequency

47 to 63 Hz

AC-input current

3.0A maximum @ 110 VAC, 1.5A maximum @ 220 VAC

Power supply output

+5.15V @ 30A, +12V @ 1.5A, +24V @ 0.1A

Airflow

300 cfm2 through system fan assembly
1Btus = British thermal units
2cfm = cubic feet per minute
Catalyst 5002 AC-Input Power Specifications

Redundancy and Load Sharing

The Catalyst 5002 dual AC-input power supplies provide system power simultaneously (load sharing). In normal operation, each power supply concurrently provides approximately half of the required power to the system. If one power supply fails, the second power supply immediately assumes full power to maintain uninterrupted system operation. Load sharing and fault tolerance are automatically enabled. Whenever possible, connect each power supply to a separate AC-input source.

Power Supply Monitoring

The supervisor engine module front panel has two LEDs that provide power indications. The LEDs (PS1 and PS2) are described in Table 2.


Table 2:
LED Description

PS1

If the power supply associated with the PS1 AC receptacle is operational, the LED is green.

If the power supply associated with the PS1 AC receptacle is not receiving input power, the LED is red.

PS2

If the power supply associated with the PS2 AC receptacle is operational, the LED is green.

If the power supply associated with the PS2 AC receptacle is not receiving input power, the LED is red.
Supervisor Engine Module PS1 and PS2 LEDs

Environmental Monitoring

Environmental monitoring functions constantly monitor the internal temperature of the chassis. Each power supply monitors its own voltage and shuts itself down if it detects a critical condition. These monitoring functions display alarms on the console if any of the monitored parameters exceed defined thresholds.

The processor monitors the temperature inside the module compartment, and the power supplies use the normal and critical levels (discussed below) to monitor power supply voltages. With redundant power supplies, the switch shuts down only if both power supplies shut off.

The environmental monitoring functions use three levels of status conditions to monitor the system:

  • Normal---All monitored parameters are within normal tolerances.
  • Alarm---An out-of-tolerance temperature or voltage condition exists. The system might not continue operation. If the power supply reaches an overvoltage measurement level, the power supply can shut down the system. Immediate action is required.

  • Critical---The power supply detects an out-of-tolerance voltage or current condition within the power supply and shuts down. The PS1 and PS2 LEDs on the supervisor engine stay on as the power ramps down and, if the second power supply is still providing power, the LEDs remain red after shutdown. If both power supplies shut down, all DC-output power is disabled. The DC-output power remains off until you correct the problem that caused the shutdown. This status condition is typically caused by one of the following conditions:

    • Loss of input power. (You cut power to the power supply or the input power source failed.)

    • Power supply detects an overvoltage, overcurrent, undervoltage, or overtemperature condition within the power supply.

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