Troubleshooting
Troubleshoot the PRI Card
Faceplate LEDs
Three status LEDs and 4 circuit LEDs are mounted on the PRI card faceplate. Each of the card circuit LEDs shows the status of one PRI circuit.
| PRI Card Link Status | |
LED | State | Meaning |
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MS (message system) | solid green | message link open to the system |
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| off | message link not open to the system |
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ST (status) | flashing | operational |
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| off | not operational |
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| solid | card is booting |
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L0 and L1 | right side - solid red | error |
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| right side - off | no error |
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| left side - solid green | |
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| left side - flashing green | Layer 1 established |
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| left side - off | no link |
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| right side - yellow | alarm indication from far end |
| with left side - flashing green |
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| right side - yellow | blue alarm from card - normal during |
| with left side - off | link startup |
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Release 3.3 | 255 |
