Cisco WS-C2950-24 Hardware Installation Guide - Page 51
Table 1-13, Cisco 2900 and 3900 Series Routers LED Indicators continued, No PVDM installed.
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Chapter 1 Overview of the Routers LED Indicators Table 1-13 Cisco 2900 and 3900 Series Routers LED Indicators (continued) LED Color Description Cisco 2900 Routers S (Speed) 1 blink + pause FE or GE port operating at 10 Mb/s. Back panel 2 blink + pause FE or GE port operating at 100 Mb/s. 3 blink + pause GE port operating at 1000 Mb/s. L (Link) Green FE or GE link is established. Back panel Off No FE or GE link is established. PVDM 0,1,2, Green and 3 Amber PVDM is initialized. PVDM is detected but not initialized. Back panel Back panel Off No PVDM installed. Back panel ISM Green Initialized. Amber Initialized with error. Off Not installed. 1. LED goes off if the AC power fails or is disconnected. It does not go on and off with the switch. Cisco 3900 Routers Back panel Back panel Back panel Back panel Back panel OL-18712-02 Cisco 2900 Series and 3900 Series Hardware Installation Guide 1-31