Cisco WS-C2950T-24 Hardware Installation Guide - Page 49
LED Indicators
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Chapter 1 Overview of the Routers LED Indicators Table 1-12 Interface Numbering on Cisco 2911, 2921, 2951 ISRs and Cisco 3900 ISRs (continued) Port Location IOS Command Line Interface Examples1, 2 Voice port in a BRI expansion module (internal slot) in an extension voice module (EVM) Interface-type 2 / 0 / port Port numbers are 8 to 11 in expansion module 0. Port numbers are 16 to 19 in expansion module 1. voice-port 2/0/x BRI interface in a BRI expansion module (internal slot) in an extension voice module Interface-type 2 / port Port numbers are 0 to 3 if one expansion module is installed. Port numbers are 0 to 7 if two expansion modules are installed. interface bri 2/x 1. Interface abbreviations: fa = Fast Ethernet; gi = Gigabit Ethernet; USB = universal serial bus; BRI = ISDN basic rate interface. 2. The interfaces listed are examples only; other possible interface types are not listed. 3. Only interface card slot numbers 1 and 3 are used for double-width (HWIC-D). 4. Specify the line number in the Cisco IOS command-line interface (CLI) by using the interface number for the associated asynchronous serial interface. 5. The network module slot number is 1 for all Cisco 2900 series routers. Note On the Cisco 2911, 2921, 2951 routers and Cisco 3900 series routers the interface numbering scheme is the same for asynchronous interfaces as for other types of interfaces. To configure the line associated with an async interface, use the interface number to specify the async line. For example, line 0/3/0 specifies the line associated with interface serial 0/3/0 on an WIC-2A/S in slot 3. Similarly, line 1/22 specifies the line associated with interface async 1/22 on an NM-32A in network module slot 1. LED Indicators Table 1-13 summarizes the LED indicators that are located on the router bezel or chassis, but not on the removable modules or interface cards. For descriptions of LEDs in removable modules and interface cards, see the applicable documentation for those products. For LED troubleshooting information, including possible trouble causes and corrective actions, see Table 1-13. Table 1-13 Cisco 2900 and 3900 Series Routers LED Indicators LED POE POE Boost Color Green Amber Green Off PS/PS1 Green Amber Description IP phone power is on. IP phone power is not on. IP Phone power is supplied by POE Boost power supply. External POE Boost power supply is not on. System is running. System is not running. Cisco 2900 Routers Front bezel - - Front bezel Cisco 3900 Routers Front bezel - - Front bezel OL-18712-02 Cisco 2900 Series and 3900 Series Hardware Installation Guide 1-29