ALARMS
The front panel of the
| Table 4. Front Panel Status Indicator |
|
|
LED | Description |
|
|
Flashing Green once | Indicates synchronization is being attempted between the |
per second | |
Flashing Green more | Indicates synchronization is being attempted between the |
than once per second | |
Steady Green | Indicates HDSL frame synchronization has been achieved |
| between the |
| downstream modules. |
Flashing Red once per | Indicates an HDSL Cyclic Redundancy Check (CRC) error has |
second | occurred between the |
| |
Flashing Red more | Indicates an HDSL CRC error has occurred between the |
than once per second | |
| |
Flashing Yellow once | Indicates an NDU (Network Doubler Unit) loopback is in effect in |
per second | the |
| the upstream span. |
Flashing Yellow more | Indicates a CDU |
than once per second | effect in the |
| integrity of the downstream span. |
|
|
January 26, 2000 | 9 |