Cisco 7206VXR Installation Guide - Page 42

Field-Replaceable Units Chapter 1 Product Overview Port Adapters and Service Adapters The Cisco 7206 is shipped from the factory with up to six installed port adapters and service adapters. Port adapters provide a variety of network media types (based on your order) for the router and service adapters provide hardware-based services (such as data compression and encryption) for the port adapter media types. The port adapters and service adapters connect directly to the router's midplane. Port adapters and service adapters installed in the Cisco 7206 router support OIR. For a description of OIR, refer to the "Online Insertion and Removal" section later in this chapter. For general instructions about how to replace a port adapter or service adapter, refer to Chapter 5, "Maintaining the Cisco 7206," the "Replacing a Port Adapter or Service Adapter" section on page 5-4. Caution To ensure adequate airflow across the router's port adapters, a port adapter or a blank port adapter must be installed in each port adapter slot. Note Detailed instructions for removing, replacing, and configuring the port adapter and service adapter types supported by the Cisco 7206 are contained in the configuration note for each port adapter and service adapter. For example, if you plan to replace a PA-A3 enhanced ATM port adapter in your Cisco 7206 router, consult the configuration note PA-A3 Enhanced ATM Port Adapter Installation and Configuration. The configuration note is available on Cisco.com. Power Supplies The Cisco 7206 comes equipped with one 280W AC-input power supply or one 280W DC-input power supply. You must order the second power supply separately. Caution Do not mix power supplies in the Cisco 7206. In dual power supply configurations, both power supplies must be of the same type (two AC-input power supplies or two DC-input power supplies). Note Detailed instructions for handling and replacing the Cisco 7206 power supplies are contained in the configuration notes 280-Watt AC-Input Power Supply Replacement Instructions and 280-Watt DC-Input Power Supply Replacement Instructions. . These configuration notes are available on Cisco.com. A handle on the AC and DC power supplies provides a grip point for removing and replacing the power supply. (Figure 1-15 shows the faceplate of the AC-input power supply. Figure 1-16 shows the faceplate of the DC-input power supply.) Two captive installation screws secure the power supply to the chassis and seat the power supply in the router midplane. A power OK LED indicates that the power supply is delivering +5 VDC to the router midplane. The AC-input power supply has a receptacle for an AC-input power cable. A modular power cable connects the AC-input power supply to the site AC power source. A cable-retention clip secures the power cable to the AC-input power supply. 1-24 Cisco 7206 Installation and Configuration Guide OL-5102-02