Hello guys, in the following post I am going to explain how to solve Adding an extra downlink channel on the MA5633 fails.
The customer tries to add an additional downstream channel on MA5633, but they get the following error message:
cable downstream 21 frequency 970.00 rf-power 34.0 enable
This operation will take several minutes, Please wait...
Failure: The frequency and the frequency profile configured for the port do not match
There are 4 profiles in the system, and the default profile is profiled 1, the frequency range available for the SC-QAM channel is from 85Mhz to 893Mhz, now you are setting the frequency of 970Mhz, so it reported failure.
There are two ways to resolve it:
Change the profile ID from 1 to profile 4, commands:
interface cable 0/1/0
cable bind frequency-profile 4
Note: When you change to profile 4, there are some frequencies that could not be configured due to the hardware limit. Spectrum template 4 divides the full spectrum into 5 Combiners, each Combiner contains 4 blocks, and the spectrum span is 192Mhz. In the case of American standard, the frequency in the range of (-3, 3) of the starting frequency of each block is not supported configuration, such as the starting frequency of block1 of Combiner4 is 630Mhz, then the 5 frequency points of 628, 629, 630, 631, 632 are not supported.
MA5800-X7(config)#display cable frequency-profile
{ all<K>|profile-id<U><1,64> }: 4
{ <cr>||<K> }:
Command:
display cable frequency-profile 4
-----------------------------------------------------------------------------
Profile id: 4
DescrIPtion : Full Spectrum 54 to 1002MHz
Profile type: typeA
Maximum combiner number: 5
Maximum combiner frequency span(Hz): 192000000
Maximum block number per combiner: 4
Maximum qam block frequency span(Hz): 48000000
Maximum bypass block frequency span(Hz): 8400000
Combiner1: 54000000 - 246000000(Hz)
block1: 54000000 - 102000000(Hz) qam
block2: 102000000 - 150000000(Hz) qam
block3: 150000000 - 198000000(Hz) qam
block4: 198000000 - 246000000(Hz) qam
Combiner2: 246000000 - 438000000(Hz)
block1: 246000000 - 294000000(Hz) qam
block2: 294000000 - 342000000(Hz) qam
block3: 342000000 - 390000000(Hz) qam
block4: 390000000 - 438000000(Hz) qam
Combiner3: 438000000 - 630000000(Hz)
block1: 438000000 - 486000000(Hz) qam
block2: 486000000 - 534000000(Hz) qam
block3: 534000000 - 582000000(Hz) qam
block4: 582000000 - 630000000(Hz) qam
Combiner4: 630000000 - 822000000(Hz)
block1: 630000000 - 678000000(Hz) qam
block2: 678000000 - 726000000(Hz) qam
block3: 726000000 - 774000000(Hz) qam
block4: 774000000 - 822000000(Hz) qam
Combiner5: 822000000 - 1014000000(Hz)
block1: 822000000 - 870000000(Hz) qam
block2: 870000000 - 918000000(Hz) qam
block3: 918000000 - 966000000(Hz) qam
block4: 966000000 - 1014000000(Hz) qam
-----------------------------------------------------------------------------
The frequency points that are not configurable after using Spectrum Template 4 are as follows:
We could customize the frequency profile according to customer requires. You could refer to the link on support: cable frequency-profile add
Thanks.
