Chapter 9: Troubleshooting
Status (STS) LED is RED
A RED alarm indicates that the WAN connection is not receiving proper framing or has lost framing.
•Verify the use of proper cabling on the WAN connection.
•Check Frame Type selection on the WAN Physical Configuration and line coding.
•Possible bad cabling between Telco and
•Use QuickSET or Local Management to verify that one of the
•Verify the use of proper cabling for the HDSL connections. Category 3 or Category 5 Unshielded Twisted Pair copper wiring is required. One pair (2 wires) for Fractional T1, two pair (4 wires) for Full T1. The presence of bridged taps and multiple wire segments connected together to form the loop may reduce the maximum distance usable between the Remote and Local devices. Wire gauge has an impact on the distance which can be supported as well. The maximum distance is 12,000 feet using 24 American Wire Gauge (AWG) wiring.
•Verify the gauge and condition of the wire. A trained line technician may be necessary to determine this.
•Verify that the distance between the Remote and Local units is less than 12,000 Feet.
Status (STS) LED is AMBER
The device is in Yellow alarm mode. A Yellow alarm indicates that the
receiving proper framing from the Telco, but the Telco is not receiving proper framing.
•Check for faulty or incorrect cabling between Telco and
•Request that the Telco verify the configuration and operation of the circuit.
