Release 1.0
Configuring the CMTS
526360-001-00 Rev. B
MGBI
6-29
X
/
Y
is
the upstream port and logical channel number (0-3).
2-32
is
the number of codes allowed per minislot.
Configuring the S-CDMA Hopping Seed
Use the
cable upstream hopping-seed
command, in Cable Interface Configuration
mode, to specify the 15 bit S-CDMA hopping seed value used for the code hopping
sequence initialization, as shown below:
MOT(config-if)#
cable upstream
<
X
/
Y
>
hopping-seed
<
0-32767
>
where:
X
/
Y
is
the upstream port and logical channel number (0-3).
0-32767
is the hopping seed value (0 disables code hopping)
Configuring the S-CDMA Spreading Interval
S-CDMA channels support the configuration of spreading interval. A spreading
interval is the time that it takes to transmit one symbol per code across all 128 codes
in an S-CDMA frame. The time duration of an S-CDMA frame is determined by a
configurable number of spreading intervals and the signaling rate.
Use the
cable upstream spread-interval
command, in Cable Interface Configuration
mode, to specify the spreading interval for an S-CDMA frame, as shown below:
MOT(config-if)#
cable upstream
<
X
/
Y
>
spread-interval
<
1-32
>
where:
X
/
Y
is
the upstream port and logical channel number (0-3).
1-32
is
the spreading interval value.
Displaying the Upstream Logical Channel Configuration
Use the
show cable upstream
command, in Cable Interface Configuration mode, to
display the complete configuration of an upstream logical channel, as shown below:
MOT(config-if)#
show cable upstream
{<
NUM
> | <
X
/
Y
>}
Note:
The logical channel must be disabled to specify a new hopping seed
value.
Summary of Contents for BSR 2000
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