Cisco 4948-10GE Installation Guide - Page 32
Color or State, Description, Table 1-1, LED Functions - 48 port
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Switch Components Chapter 1 Product Overview Table 1-1 describes LED functions. Table 1-1 LED Functions LED STATUS Color or State Green Description At startup, the switch performs a series of diagnostic tests: All tests pass Red A test other than an individual port test fails Flashing System boot or diagnostic tests in progress Yellow System is in rommon mode or a power supply has failed CON MGT Port 1-48 Off Green Off Green Off Green Yellow Flashing yellow Off Switch is disabled 10/100 BASE-T console port is in link-up state 10/100 BASE-T console port is in link-down state or not connected There are no blinking, red, or yellow states for this port 10/100 BASE-T Management port is in link-up state 10/100 BASE-T Management port is in link-down state or not connected There are no blinking, red, or yellow states for this port Port is operational Port is disabled by user Power-on self-test indicates faulty port No signal detected or link configuration failure 1-10 Catalyst 4900 Series Switch Installation Guide 78-18039-02