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POST INSTALLATION TEST
Repair Procedure When LED Indicates Abnormality
1.1 How to check LYR LED
1.Confirm the LYR LED lights green on the front edge of the FCH
2.Make sure that any alarm LED is not ON (red/yellow). (See LED Indication (B) in Figure
If any abnormal state is detected, please see the NEAX2400 IMX Circuit Card Manual.
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| FCH |
| DTI |
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| OPE |
| OPE | |
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| LED Indication | (A) |
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LYR | Remains ON |
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| LYR |
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| PCM | |
| when Fusion Link |
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| EST3 |
| FRM | ||
| is established |
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| LB | EST2 |
| BER | |
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| LOAD | EST1 |
| RMT |
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| EST0 |
| AIS | |
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| EST3 Send |
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| LED Indication (B) | |
Remains ON | LB | Receive Polarity of | Payload | |||||
when available |
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EST2 pairwire is normal |
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for Ethernet |
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| If any LED is ON, refer to the "Circuit | |
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| EST1 Receive |
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| ON | Card Manual." | ||
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| EST0 | Link is |
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| PCM : On when PCM loss occurs. | ||
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| established |
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Remains ONLOAD |
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| FRM : On when Frame Loss occurs. | ||
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| BER : On when Bit Error occurs. | |||
when ready to broadcast |
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| RMT : On when Remote Alarm is received. | ||
data packets | Note |
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| AIS : On when AIS signal is detected. |
DTI
Front Cable
FCH
FRONT
Note: When the FCH is a Root Bridge, the LOAD LED remains ON.
When the FCH is Backup Bridge, the LOAD LED flashes (60INT).
Figure 6-2 LED Indications on Fusion Link Related Circuit Cards
2. Repair Procedure When LED Indicates Abnormality
If the LED indication appears abnormal, check the following items again:
2.1Front Cable
Make sure that front cable 10AL (10) FLT CA is securely inserted into the connectors.
CHAPTER 6 |
Page 134
Revision 3.0