Lucent Technologies 9077 16S User Manual

SP Switch Router Adapter card LEDs

SP Switch Router Adapter Guide - 1.4 Update 2

 

1-9

The “RX” and “TX” LEDs are under software control and indicate port states on receive and 
transmit sides. The “MD” and “SW” LEDs are hardware-controlled and reflect data activity on 
the SP Switch Router switch core or interface side of receive and transmit ports.  

 

During boot and resets, the four software-controlled LEDs indicate different media card 
activities by flashing in specific patterns. Refer to Table 1-1 for a description of each pattern.    

“Top” end of card

“Bottom” end of card

• RX HB   (green)

• RX ST0  (green)

• RX ST1  (amber)

• RX ERR (amber)

•  ON       At reset, all LEDs are lit for 1/2 second
•  ON       as part of on-board diagnostics.
•  ON       Also tests that LEDs are working.
•  ON

•  OFF     ERROR      -  During a boot or reset, this pattern indicates
•  OFF                           a checksum error is detected in 
•  OFF                           flash memory.  
•  ON

•  ON       ERROR     -  During a boot or reset, this pattern indicates
•  OFF                           that the SRAM fails the memory test.
•  ON                               
•  OFF

•  ON -> OFF             - During loading, HB and RX ST1 flash
•  OFF                           as each section of the code loads.
•  OFF                           
•  ON -> OFF