Front Panel | |
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Table 2 lists the
Table 2. Front-Panel Display Messages
Message | Full Name | Description |
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ALARM MESSAGES |
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ACO | Alarm Cutoff | A system alarm has occurred, and has been retired to an ACO |
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| condition by pressing the SEL pushbutton on the |
ALRM | Alarm Condition Exists | A system alarm condition is in effect. |
DBER | DS1 Bit Error Rate | A system DS1 BER alarm is in effect and remains in effect until cleared. |
DU1U or DU1D | Doubler 1 Upstream or Downstream | Precedes LA, HBR, and MAL and indicates the first H4D doubler HDSL4 |
| Port | upstream or downstream interface. |
DU2U or DU2D | Doubler 2 Upstream or Downstream | Precedes LA, HBR, and MAL and indicates the second H4D doubler |
| Port | HDSL4 upstream or downstream interface. |
HBRx | HDSL4 Block Error Rate Loop 1 or | A system HDSL4 Block Error Rate alarm is in effect. (x indicates |
| Loop 2 | Loop 1 or Loop 2.) |
LAx | Loop Attenuation Loop 1 or Loop 2 | The attenuation on the HDSL4 loop has exceeded the maximum |
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| threshold value. (x indicates Loop 1 or Loop 2.) |
LAIS | Line Alarm Indication Signal | Indicates an AIS (unframed all ones) pattern is being received or |
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| transmitted at the |
LLOS | Line (Unit) Loss of Signal | Indicates that no signal is detected at the |
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| Causes a system alarm. |
LOF | Loss of Frame | The DS1 input does not contain the ESF or SF frame pattern setting of |
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| the FRMG option. |
LOSW | Loss of Sync Word | Indicates that one of the HDSL4 loops has lost synchronization. |
LRAI | Line RAI | Indicates an RAI alarm (yellow) from the CPE with an |
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| from the line unit or network. RAI signal is transmitted towards the |
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| network. |
MALx | Margin Alarm Loop 1 or Loop 2 | The margin at Loop 1 or Loop 2 of the HDSL4 interface has dropped |
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| below the threshold (0 to 15 dB) set by the operator. (x indicates |
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| Loop 1 or Loop 2.) |
PWR FEED GND | Power Feed Ground | The HDSL4 loop is grounded. |
PWR FEED OPEN | Power Feed Open | Indicates a line power open condition. |
PWR FEED SHRT | Power Feed Short | Indicates a short between Loop 1 and Loop 2 of the HDSL4 pair. |
PRMF | Performance Report Messaging - | |
| Far End |
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PRMN | Performance Report Messaging - | |
| Near End |
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RAIS | Remote Alarm Indication Signal | Indicates an AIS (unframed all ones) pattern is being received or |
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| transmitted at the |
RLOS | Remote (Unit) Loss of Signal | Indicates that no signal is detected at the DS1 input to the |
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| Causes a system alarm. |
RRAI | Remote |
| Indication at the |
| has errors.) |
SPNn | Span Number |
Indicates an RAI alarm (yellow) from the CPE with errors from the line unit or network.
Accompanies the LOSW alarm and identifies the span where the LOSW alarm occurred.
TUC | Transmission Unit Central Office | Precedes DBER, HBR, MAL, LA, and LOF alarms and indicates that the |
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| alarm has occurred at the |
TUR | Transmission Unit Remote End | Precedes DBER, HBR, MAL, LA, and LOF alarms and indicates that the |
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| alarm has occurred at the |
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| Continued |
September 12, 2003 | 5 |