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POST Test Error Codes

451-0308

1. A POST test failure occurs on an 8-port unit. All LEDs flash eight

times, very quickly, then the error code is displayed.

2. You record that LED 3 turns on. Again, all LEDs flash eight times very

quickly, then the rest of the error code is displayed.

3. You record that LEDs 3 and 4 turn on. Figure 17 explains how to

interpret the sample error code.

NOTE: In hexadecimal, 0 indicates the LED is OFF. 1 indicates the LED is

ON.

Each group of four LEDs is converted to a hexadecimal value as follows:

• 0 = 0000

• 1 = 0001

• 2 = 0010

• 3 = 0011

• 4 = 0100

• 5 = 0101

• 6 = 0110

• 7 = 0111

• 8 = 1000

• 9 = 1001

• A = 1010

• B = 1011

• C = 1100

• D = 1101

• E = 1110

• F = 1111

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 68 69

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MRV Communications AE092FCAKA Dokumentacja Strona 52