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Note The information in this chapter applies to all Catalyst 6000 family switches unless otherwise noted. |
This chapter describes the features and hardware components of the Catalyst 6000 family switches and contains these sections:
This section describes the hardware features for the Catalyst 6000 family switches. For software descriptions, refer to the Catalyst 6000 Family Software Configuration Guide. For module descriptions and installation procedures, refer to the Catalyst 6000 Family Module Installation Guide.
The Catalyst 6000 family switches have these features:
All modules (including the supervisor engine if you have redundant supervisors), fans, and dual power supplies, support hot swapping, so that you can add, replace, or remove modules without interrupting the system power or causing other software or interfaces to shut down. For more information about hot-swapping modules, refer to the Catalyst 6000 Family Module Installation Guide.
This section describes the hardware components for the Catalyst 6000 family switches.
The following equipment is standard for the Catalyst 6000 family switches:
The following equipment is optional for the Catalyst 6000 family switches:
The system fan assembly provides cooling air for the supervisor engine and the switching modules. The fan assembly is located in the chassis. Figure 2-1 (Catalyst 6006 and 6506 switches), Figure 2-2 (Catalyst 6009 and 6509 switches), and Figure 2-3 (Catalyst 6509-NEB switch) show the direction of airflow into and out of the switch. Sensors on the supervisor engine monitor the internal air temperatures. If the air temperature exceeds a preset threshold, the environmental monitor displays warning messages.
If an individual fan within the assembly fails, the FAN LED turns red. To replace a fan assembly, see "Removing and Replacing the Fan Assembly" section.
Catalyst 6000 family switch power supplies are available in three ratings:
All power supplies have the same form factor.
The Catalyst 6000 family switches support redundant AC-input and DC-input power supplies. If you are using dual power supplies, it is acceptable to have one AC-input and one DC-input power supply.
Each power supply has an individual power switch.
Many telco organizations require a -48 VDC power supply to accommodate their power distribution systems. From an operational perspective, the DC-input power supply has the same characteristics as the AC-input version.
The AC-input power supply (see Figure 2-4) has a power cord that allows you to connect each power supply to the site power source. You can connect the DC-input power supply (see Figure 2-5) to the power source with heavy gauge wiring connected to a terminal block.
Both AC-input and DC-input power supplies support redundant hot swapping. When power is removed from one supply, the redundant power feature causes the second supply to produce full power.
For complete power specifications, see "Specifications."
When you install and turn on two power supplies, 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 enabled automatically when the second power supply is installed; no software configuration is required.
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Note For proper load sharing operation in a redundant power supply configuration, you must install at least two modules in the chassis. If you fail to install at least two modules, you might receive spurious OUTPUT FAIL indications on one or both power supplies. |
For information about the power management feature, refer to the Catalyst 6000 Family Software Configuration Guide.
The environmental monitoring and reporting functions allow you to maintain normal system operation by resolving adverse environmental conditions prior to loss of operation.
The power supplies monitor their own internal temperature and voltages. In the event of excessive internal temperature, the power supply will shut down to prevent damage. When the power supply returns to a safe operating temperature, it will restart. In the event of an abnormal voltage on one or more outputs of the power supplies, the OUTPUT FAIL LED will light. Substantial overvoltage conditions can lead to a power supply shutdown.
The power supply front panel LEDs are described in Table 2-1.
For more information about the environmental monitoring feature, refer to the Catalyst 6000 Family Software Configuration Guide.
| LED | Description |
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INPUT OK | AC input:
DC input:
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FAN OK | Green when the power supply fan is operating properly |
OUTPUT FAIL | Red when there is a problem with one or more of the DC-output voltages of the power supply |
The power supplies have a built-in fan; air enters the front of the fan (power-input end) and exits through the back. An air dam keeps the airflow separate from the rest of the chassis, which is cooled by the system fan assembly.
To replace a power supply, see the "Removing and Replacing the Power Supply" section.
Posted: Sun Jun 11 02:28:07 PDT 2000
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