Manual of VDSL2 Solution
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206
length is defined as the loss (in dB) of an equivalent length of hypothetical cable at a reference frequency defined by the
network operator or in spectrum management regulations. DPBOESEL shall be coded as an unsigned integer representing an
electrical length from 0 dB to 255 dB. The corresponding values line length to the damping in dB is about 10 dB per 500 m. If
DPBOESEL is zero, the DPBO in this is disabled.
ESCMA / ESCMB/ ESCMC:
E-side Cable Model (DPBOESCM) This configuration parameter defines a cable model in terms of three scalars DPBOESCMA,
DPBOESCMB and DPBOESCMC that are used to estimate the frequency dependent loss of E-side cables calculated from the
DPBOESEL parameter using the formula: ESCM(f) = (DPB DPBOESCMB*sqrt(f) + DPBOESCMC*f )*DPBOESCL
Where ESCM is expressed in dB and f is expressed in MHz. DPBOESCMA, DPBOESCMB, DPBOESCMC shall be coded as
unsigned integers representing a scalar value from -1 (coded as 0) to 1.5 (coded as 640) in step of 2^-8. All values are valid.
MUS:
Minimum Usable Signal (DPBOMUS) DPBOMUS defines the assumed Minimum Usable receive Signal PSD (in dBm/Hz) for
exchange based services, used to modify parameter DPBOFMAX defined below. It shall be coded as an unsigned integer
representing a PSD level from 0 dBm/Hz to -127 dBm/Hz. All values are valid.
MinFreq:
Minimum Frequency (DPBOFMIN) DPBOFMIN defines the starting frequency from which the DPBO shall be applied. It shall be
coded as a 16 bits unsigned integer representing a start frequency in multiple of 4.3125 KHz. The range of valid values is from
0 to 2048.
MaxFreq:
Maxmum Frequency (DPBOFMAN) DPBOFMAX defines the maximum frequency at which DPBO may be applied. It shall be coded
as a 16 bits unsigned integer representing a start frequency in multiple of 4.3125 KHz. The range of valid values is from 32 to 2048.
Содержание MEG821AE
Страница 1: ...M M ME E EG G G8 8 82 2 21 1 1A A AE E E MANUAL ...
Страница 110: ...Manual of VDSL2 Solution http www black box eu 109 4 2 1 3 MISC CONFIG Fig 4 2 1 3 MISC CONFIG ...
Страница 117: ...Manual of VDSL2 Solution http www black box eu 116 Fig 4 2 3 1 Port Sniffer ...
Страница 137: ...Manual of VDSL2 Solution http www black box eu 136 VLAN Filters Fig 4 3 0 0 4 VLAN Filters ...
Страница 141: ...Manual of VDSL2 Solution http www black box eu 140 be configured Fig 4 3 1 2 QinQ VLAN 4 3 1 2 1 QinQ Tunnel Setting ...
Страница 166: ...Manual of VDSL2 Solution http www black box eu 165 Fig 4 3 5 1 DHCP Relay ...
Страница 199: ...Manual of VDSL2 Solution http www black box eu 198 Figure 5 1 2 Band Profile Region ...
Страница 219: ...Manual of VDSL2 Solution http www black box eu 218 Setup VLAN Name UserA VID 21 select member ports 1 10 ...