Paradyne U8777, 8779 manual See Network Interface Options

7. Monitoring and Troubleshooting

Table 7-1. Health and Status Messages (3 of 4)

Message	What Message Indicates	What To Do
LOS at Net, Pt n	An LOS (Loss Of Signal)	1.	Verify that the network cable
	condition has been detected		is securely attached at both
	on the network interface. No		ends.
	signal is being received on	2.	Verify proper NTU and LTU
	Port n, possibly due to a local
			configuration.
	network problem.
		3.	Contact network provider to
			troubleshoot the line.
Mismatch Rate, Pt n	The LTU, set to a fixed DSL	Set the LTU to a compatible rate
	rate, is attempting to operate	or replace the NTU.
	at a rate the NTU is not
	capable of.
Net Margin Threshold,	The signal-to-noise margin	1.	Check the Network
Pt n	has dropped below the		Performance Statistics
	configured threshold.		screen for possible line
			impairments.
		2.	Set the unit to run at a lower
			DSL line rate.
		3.	Reconfigure the margin
			threshold (if appropriate).
		4.	Contact network provider to
			troubleshoot the line.
NTU/LTU Mismatch,	The NTU is not compatible	Contact network provider.
Pt n	with the LTU.
NTU TS16 Not	The LTU is configured for	1.	Verify endpoint is a G.703
Supported	TS16 signaling and the NTU		product. EIA-530-A products
	is not configured to support		do not support signaling.
	TS16 signaling.	2.	Replace endpoint or
			reconfigure TS16 to data.
OOF at Net, P n	An Out Of Frame (OOF)	1.	Check the Transmit Clock on
	condition has been detected.		the unit and attached
	An OOF condition is declared		equipment.
	when 2 out of 4 frame	2.	Set the unit to run at a lower
	synchronization bits are in
			DSL line rate.
	error.
		3.	Contact network provider.
Payload Rate	The endpoint device is an	Reconfigure the EIA-530
Mismatch Pt n	EIA-530-A model that does	Payload Rate configuration
	not support the configured	option to an acceptable rate.
	EIA-530-A payload rate.	See Network Interface Options
		Menu in Appendix A,
		Configuration Options for
		acceptable rates.

8700-A2-GB20-40 May 2002 7-5