Error type 0: a Digital Line circuit pack that has ports administered has been removed since the Error Log was last cleared. Make sure that the circuit pack has been re-inserted.

Error type 1, Aux Data 40987: An off-board problem was detected by the port circuit, and may result in a noisy port or link. See Note ( 14) for recommendations.

Error type 1, Aux Data 1 - 20: Is logged when at least 15 off-board problems have been detected with the link to the data module. Each error detected increments an on-board counter. The aux data gives the value of this counter divided by 15. The user could experience a noisy port or link. See Note 14 for recommendations.

Error type 15: An internal error that occurs when an audit request fails.

Error type 18: The port in question is demand busied out. Release the port with release port location .

Error type 257: Problems with transmitting to the data module. This is usually an on-board problem and can be ignored if no user complaints are received. Otherwise, check for faulty wiring.

Error type 769: EPF has been turned off due to the overcurrent condition at the data module. See the recommendations in note n. This may also be caused by the PTC being in the tripped position due to a short on the power line. You can correct this by removing the short, unplugging the data module from the wall for about 30 seconds, and plugging it back in.

Error type 1537: There is a problem with the link to the data module. This can be ignored if no user complaints are received.

Error type 2304: Internal error. No action is necessary.

Error type 2305, Aux Data 32770: The data equipment went off-hook while the associated link was being initialized in a disconnected state. Use status data-module to determine the state of the data module. The off-hook should have changed the service state to in-service. No action is necessary.

Error type 2305, Aux Data 40967: The link between the circuit pack and the data module has been reset successfully. The link is normally reset when the circuit pack associated with an administered port is first plugged in assuming that the data module is already in place and connected to the associated port, when a port is first administered assuming the associated circuit pack is plugged in and that the data module is connected to the associated port, or when a data module is first connected to an administered port. No action is necessary.

Error type 2561: The downlink buffer on the circuit pack has overflowed. No action is necessary.

Error type 2817: A DCP endpoint may have been disconnected.

Error types 1, 769, 1537, and 3841: Ensure the data module is connected and operating properly. Check for faulty wiring. If necessary, reduce the length of the cable between the data module and the switch to 5000 ft. for 24-gauge wire or 4000 ft. for 24-gauge wire.

If the problem still exists, replace the circuit pack. Once the problem has been resolved, the alarm will be retired in 60 minutes or in 90 min. for error 1537.

The DA module is not phantom-powered from the port. Thus when it is in linked mode, its range is limited by the Italtel digital telephone’s limit: 0.7 Km (2300 ft.) on 26-gauge wire or 1.8 Km (5900 ft.) on 22-gauge (0.6 mm) wire. If in stand-alone mode, it is limited by the maximum length of loop allowed from the Digital Line Interface (DLI) component: up to 3.5 km (2 miles) on 22-gauge (0.6 mm) wire.