Chapter 18 xDSL Line Data
IES-1248-51V User’s Guide
153
18.2 xDSL Line Data Screen
This screen displays an ADSL port’s line bit allocation.
Discrete Multi-Tone (DMT) modulation divides up a line’s bandwidth into tones.
This screen displays the number of bits transmitted for each tone. This can be
used to determine the quality of the connection, whether a given sub-carrier loop
has sufficient margins to support ADSL transmission rates, and possibly to
determine whether certain specific types of interference or line attenuation exist.
See the ITU-T G.992.1 recommendation for more information on DMT.
The better (or shorter) the line, the higher the number of bits transmitted for a
DMT tone. The maximum number of bits that can be transmitted per DMT tone is
15.
The bit allocation contents are only valid when the link is up.
To open this screen, click Basic Setting > xDSL Line Data > Line Data.
Up Stream Output
Power
This field displays the amount of power that the subscriber’s ADSL
modem or router is using to transmit to this port. The total output
power of the transceiver varies with the length and line quality. The
farther away the subscriber’s ADSL modem or router is or the more
interference there is on the line, the more power is needed.
Info Atur
Info Atuc
The Info Atur fields show data acquired from the ATUR (ADSL
Termination Unit – Remote), in this case the subscriber’s ADSL
modem or router, during negotiation/provisioning message
interchanges. This information can help in identifying the subscriber’s
ADSL modem or router.
The Info Atuc fields show data acquired from the ATUC (ADSL
Termination Unit – Central), in this case IES-1248-51V, during
negotiation/provisioning message interchanges.
The vendor ID, vendor version number and product serial number are
obtained from vendor ID fields (see ITU-T G.994.1) or R-MSGS1 (see
T1.413).
A.
At the time of writing, the IES-1248-51V always uses Trellis coding.
Table 29
xDSL Line Rate Info (continued)
LABEL
DESCRIPTION
Содержание IES-1248-51A
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Страница 8: ...Safety Warnings IES 1248 51V User s Guide 8...
Страница 11: ...Contents Overview IES 1248 51V User s Guide 11 Appendices and Index 593...
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Страница 32: ...Table of Contents IES 1248 51V User s Guide 32...
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Страница 46: ...Chapter 1 Introducing the IES 1248 51V IES 1248 51V User s Guide 46...
Страница 52: ...Chapter 2 Hardware Installation IES 1248 51V User s Guide 52...
Страница 60: ...Chapter 3 Front Panel Connections IES 1248 51V User s Guide 60...
Страница 64: ...Chapter 4 MDF Connections IES 1248 51V User s Guide 64...
Страница 66: ...Chapter 5 Power Connections IES 1248 51V User s Guide 66...
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Страница 88: ...Chapter 8 Tutorials IES 1248 51V User s Guide 88...
Страница 96: ...Chapter 9 Home and Port Statistics Screens IES 1248 51V User s Guide 96...
Страница 116: ...Chapter 14 IP Setup IES 1248 51V User s Guide 116...
Страница 138: ...Chapter 16 xDSL Port Setup IES 1248 51V User s Guide 138...
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Страница 186: ...Chapter 20 IGMP IES 1248 51V User s Guide 186...
Страница 198: ...Chapter 23 Packet Filtering IES 1248 51V User s Guide 198...
Страница 208: ...Chapter 25 Spanning Tree Protocol IES 1248 51V User s Guide 208...
Страница 214: ...Chapter 26 Port Authentication IES 1248 51V User s Guide 214...
Страница 222: ...Chapter 28 DHCP Relay IES 1248 51V User s Guide 222...
Страница 228: ...Chapter 29 DHCP Snoop IES 1248 51V User s Guide 228...
Страница 246: ...Chapter 32 DSCP IES 1248 51V User s Guide 246...
Страница 258: ...Chapter 34 ACL IES 1248 51V User s Guide 258...
Страница 262: ...Chapter 36 Syslog IES 1248 51V User s Guide 262...
Страница 272: ...Chapter 37 Access Control IES 1248 51V User s Guide 272...
Страница 300: ...Chapter 40 Maximum MTU Size IES 1248 51V User s Guide 300...
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Страница 354: ...Chapter 47 Diagnostic IES 1248 51V User s Guide 354...
Страница 358: ...Chapter 48 MAC Table IES 1248 51V User s Guide 358...
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Страница 376: ...Chapter 51 Common Commands IES 1248 51V User s Guide 376...
Страница 392: ...Chapter 53 Alarm Commands IES 1248 51V User s Guide 392...
Страница 404: ...Chapter 54 DHCP Commands IES 1248 51V User s Guide 404...
Страница 408: ...Chapter 55 OUI Filter IES 1248 51V User s Guide 408...
Страница 418: ...Chapter 56 IEEE 802 1Q Tagged VLAN and Isolation Commands IES 1248 51V User s Guide 418...
Страница 423: ...Chapter 57 MAC Commands IES 1248 51V User s Guide 423...
Страница 424: ...Chapter 57 MAC Commands IES 1248 51V User s Guide 424...
Страница 436: ...Chapter 58 IGMP Commands IES 1248 51V User s Guide 436...
Страница 440: ...Chapter 59 Packet Filter Commands IES 1248 51V User s Guide 440...
Страница 446: ...Chapter 60 Switch and Statistics Commands IES 1248 51V User s Guide 446...
Страница 510: ...Chapter 64 ADSL Commands IES 1248 51V User s Guide 510...
Страница 514: ...Chapter 65 G Bond IES 1248 51V User s Guide 514...
Страница 536: ...Chapter 67 ACL Commands IES 1248 51V User s Guide 536 The following is a list of the ACL commands...
Страница 540: ...Chapter 67 ACL Commands IES 1248 51V User s Guide 540...
Страница 555: ...Chapter 68 VoIP Commands IES 1248 51V User s Guide 555...
Страница 578: ...Chapter 70 Troubleshooting IES 1248 51V User s Guide 578...
Страница 593: ...593 PART VI Appendices and Index Changing a Fuse 595 Index 645...
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Страница 596: ...Appendix A Changing a Fuse IES 1248 51V User s Guide 596...
Страница 644: ...Appendix B PSTN Parameters by Country IES 1248 51V User s Guide 644...
Страница 654: ...Index IES 1248 51V User s Guide 654...