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| SHDSLInterface | Generator and |
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| G.703 Interface Nx64Interface | |||||
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| Management) |
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Figure 2. Express 6530 Functional Overview
The Express 6530 can be powered from any AC power source ranging from 90 V to 240 V at frequencies of 50 Hz to 60 Hz, or a nominal
The SHDSL NTU will be used to provide access to customer premises to E1 or Nx64k
Front Panel Features
The Express 6530 unit has eight front panel LEDs. Table 1 lists and describes these front panel LEDs.
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| Table 1. LED Descriptions |
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LED | Status | Description |
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SHDSL | Off | Main Power off |
| Green | Trained with good signal quality |
| Amber | Trained with marginal signal quality |
| Red | Training or attempting to train with poor signal quality and/or a major network port alarm is |
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G.703 | Off | Service not configured |
| Green | Service configured and interface is operating normally |
| Amber | Service is configured and has minor alarms: RAI; Slip; |
| Red | Service configured and interface is not operating normally: LOS; AIS; LOA; HBER |
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Nx64k | Off | Service not configured |
| Green | Service configured and interface is operating normally |
| Red | Service configured and interface is not operating normally due to alarms present, DTR Off, or |
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| cabling problem |
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RTS/C | Off | Nx64k service not configured or RTS/C control line is OFF |
| Green | RTS/C control line (from DTE) is ON |
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RLSD/I | Off | Nx64k service not configured or RLSD/I control line is OFF |
| Green | RLSD/I control line (from DCE) is ON |
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LLOOP | Off | No loop present |
| Amber | A local loop is active on the selected port (activated from any source) |
| Red | A local loop is active on one or more ports or G.703 services; no port selected (activated from |
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RLOOP | Off | No loop present |
| Amber | A remote loop is active on the selected port (activated from any source) |
| Red | A remote loop is active on one or more ports or G.703 services; no port selected (activated from |
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BERT | Off | No BERT |
| Green | BERT OK; pattern synchronized |
| Amber | BERT bit errors |
| Red | BERT; pattern not synchronized |
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2 |
