Black Box®LB1350A/LB1351A
If the register bit is a 1, the priority is high and if 0, the priority is low.
Thus the DSCP value classifies the packet service level.
When more than one scheme is enabled, priority conflicts are resolved by the following order : 802.1p based priority overrides port based priority and TOS based priority overrides 802.1p based priority
15- TROUBLESHOOTING
Problem | Indication | Corrective Action |
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No power | Power LED not | Check that the power supply cable is firmly | |||
| lit | connected to the device | and the wall | ||
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| power socket. |
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| Check that the AC input power source is | |||
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| between 100 and 240VAC. |
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Network problems | No | On the “mode setup switches”, check that | |||
| communication | S9 is in the UP position. ( converter normal | |||
| on network | operation mode ) |
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| Reset the device using S9 |
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Any problem related to port |
| Set device to TEST mode (S8 Down), reset | |||
4 (3) or F/O port |
| device (S9).If problem not solved remain in | |||
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| TEST mode and perform troubleshooting. | |||
TP link not working | Link LED not lit | On the “mode setup switch” move S9 to | |||
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| the DOWN position, and move it back to | |||
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| the UP position after one second. |
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| Check that the connected device is | |||
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| working properly at 100Mbps or 10Mbps. | |||
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| Check that the connection cable is well | |||
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| connected at both ends. |
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TP link not working at 100M | Both Link LED | On the “setup mode switches”, check that | |||
when Black Box®LB1350A | and | respective switches | S1 | thru S4 | are in |
LB1351A connected to | 100BaseTX LED | down position ( | |||
100Mbps or 10/100Mps | not lit |
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device |
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| Interchange between the suspected port | |||
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| and another port 1 thru 4 |
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| Check that the connected device is | |||
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| working properly at 100Mbps. |
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| Check the interconnection between the | |||
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| Black Box®LB1350A LB1351A and the | |||
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| device. |
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| Use for suspected link the preferred port | |||
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| and force it to 100Mbps (S4 up, S5 down) | |||
TP link not working at 10M | Link LED not lit | If suspected port | is 1 | thru 3, | move |
when the Black |
| respective switch (S1 thru S3) | to up | ||
Box®LB1350A LB1351A |
| position , if port 4 – move S4 up and S5 up | |||
connected to 10M device |
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(copper side). |
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| Reset the device using S9 |
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| Check that the connected device is | |||
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| working properly at 10Mbps |
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