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3-15
Netelligent 2008/2016 10Base-T Repeater User Guide
Writer:
Chris Seiter
Project:
Netelligent 2008/2016 10Base-T Repeater User Guide
Comments:
185814-003
File Name:
2000_3.doc
Last Saved On:
7/15/96 11:37 AM
Power-On Self Test and Initialization
When power is applied to the repeater, it performs a Power-On Self Test
(POST) and initialization. During the POST, the port status LEDs on the
repeater display the following sequence:
■
Odd-numbered LEDs flash green, even-numbered LEDs are OFF
■
Even-numbered LEDs flash green, odd-numbered LEDs turn OFF
■
Odd-numbered LEDs flash yellow, even-numbered LEDs turn OFF
■
Even-numbered LEDs flash yellow, odd-numbered LEDs turn OFF
After the above sequence, the SEG, COL, and MEP LEDs flash green, then
yellow, and then turn OFF. When the repeater successfully completes the
POST, it performs the BOOT initialization followed by the Flash initialization.
The PWR LED shows the current Power/POST/initialization status as follows:
■
OFF
No power to the repeater or a hardware failure
■
Yellow
POST/initialization in progress or operating out of boot code
■
Flashing Yellow
POST failed or the repeater is faulty
■
Green
POST was successful and initialization is complete. repeater is
operating out of Flash and is fully functional.
NOTE:
The port activity LEDs do not function until the PWR LED turns green.
Non-Volatile Memory Check
A test is performed on the NVRAM during the initialization of the flash. If the
test detects an error, the user is notified in the following ways:
■
The PWR (power) LED toggles green, yellow, green, yellow (1 second
on each color) and then lights steady green. (This occurs only
during initialization.)
■
A message is sent to the RS-232 port indicating an error condition. (This
occurs only during initialization.)