3Com DSA-3CV1100-02 service manual Vdsl Information for Selected Port

Central Management 93

Figure 73 VDSL Information for Selected Port

	VDSL Information for Port 3
	----------------------------
QAM status:		In lock
VDSL restarts:		1
VDSL warm starts:		0
Downstream parameters
DS Symbol rate:		1.964	Mbaud
DS Constellation:		2^5
DS Bit rate:		9.820	Mbps
SNR(@QPSK):		40.500 dB
Upstream parameters
US Symbol rate:		4.910	Mbaud
US Constellation:		2^2
US Bit rate:		9.820	Mbps
SNR(@QPSK):		31.678 dB
SNR Estimate:		31.09	dB
Enter	R to refresh, or
	0 to return to the menu, or
	Port number (1 - 24):

Figure 73 contains the following information:

■QAM Status: In lock—the link to the VCN AP is connected.

The alternate state is Out of lock—the link to the VCN AP is not connected.

■SNR, signal to noise ratio.

■Restarts, the number of times the link to the VCN AP is restarted.

■Warm start, a start using link information that existed before the start when the link was operational.