Hi,
it is possible to get 8 channel bonding for US?
Some sellers says:
"
New message from: ****** (121)
Hello,
I double checked with my engineers, and they say that although some operators have reported achieving 32x8 channel bonding on the BSR64000 system, officially it is not supported.
Any idea?
Many thanks &
BR Marek
I've not done 8 chnl bonding upstream, the upstream port can be configured for 6 different frequencies, channel widths and modulations.
that is the key with the rx48, the modulation... Arris and Cisco only do 64Qam. you can do 128Qam and 256Qam on the rx48.
so at higher modulations, there's really no need for additional channels. I've done 256Qam on a live cable plant, granted they had no actives. but it can be done and with spectrum management, you can roll down if the snr goes down.
try these mod profiles and you'll see the difference
cable modulation-profile 212
iuc request atdma qpsk 2 16 fixed 0 on 0x152 off qpsk0 80 1 1536 0 off 0 off
iuc initial atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc station atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc a-short atdma 64qam 8 150 short 4 on 0x18ea off qpsk1 104 1 1536 0 off 0 off
iuc a-long atdma 128qam 12 227 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
iuc a-ugs atdma 128qam 10 232 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
cable modulation-profile 213
iuc request atdma qpsk 2 16 fixed 0 on 0x152 off qpsk0 80 1 1536 0 off 0 off
iuc initial atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc station atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc a-short atdma 128qam 8 150 short 6 on 0x18ea off qpsk1 104 1 1536 0 off 0 off
iuc a-long atdma 256qam 12 227 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
iuc a-ugs atdma 256qam 10 232 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
cable modulation-profile 409
iuc request atdma qpsk 0 16 fixed 0 on 0x152 off qpsk0 56 1 1536 0 off 0 off
iuc initial atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc station atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc a-short atdma 64qam 4 150 short 4 on 0x18ea off qpsk1 104 1 1536 0 off 0 off
iuc a-long atdma 64qam 6 240 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
iuc a-ugs atdma 64qam 6 240 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
cable modulation-profile 409 description "ATDMA_64Qam_lab"
cable modulation-profile 411
iuc request atdma qpsk 0 16 fixed 0 on 0x152 off qpsk0 64 1 1536 0 off 0 off
iuc initial atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 640 1 1536 0 off 0 off
iuc station atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc a-short atdma 64qam 10 130 short 4 on 0x18ea off qpsk1 104 1 1536 0 off 0 off
iuc a-long atdma 64qam 10 219 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
cable modulation-profile 413
iuc request atdma qpsk 16 16 fixed 0 on 0x152 off qpsk0 64 0 1536 0 off 0 off
iuc initial atdma qpsk 16 34 fixed 0 on 0x152 off qpsk0 640 0 1536 0 off 0 off
iuc station atdma qpsk 16 34 fixed 0 on 0x152 off qpsk0 384 0 1536 0 off 0 off
iuc a-short atdma 64qam 16 130 short 4 on 0x18ea off qpsk1 104 0 1536 0 off 0 off
iuc a-long atdma 64qam 16 219 short 0 on 0x18ea off qpsk1 128 0 1536 0 off 0 off
cable modulation-profile 414
iuc request atdma qpsk 16 16 fixed 0 on 0x152 off qpsk0 64 2 36 0 off 0 off
iuc initial atdma qpsk 16 34 fixed 0 on 0x152 off qpsk0 640 2 36 0 off 0 off
iuc station atdma qpsk 16 34 fixed 0 on 0x152 off qpsk0 384 2 36 0 off 0 off
iuc a-short atdma 64qam 16 130 short 4 on 0x18ea off qpsk1 104 2 36 0 off 0 off
cable modulation-profile 415
iuc request atdma qpsk 16 16 fixed 0 on 0x152 off qpsk0 64 2 2048 0 off 0 off
iuc initial atdma qpsk 16 34 fixed 0 on 0x152 off qpsk0 640 2 2048 0 off 0 off
iuc station atdma qpsk 16 34 fixed 0 on 0x152 off qpsk0 384 2 2048 0 off 0 off
iuc a-short atdma 64qam 16 130 short 4 on 0x18ea off qpsk1 104 2 2048 0 off 0 off
iuc a-long atdma 64qam 16 219 short 0 on 0x18ea off qpsk1 128 2 2048 0 off 0 off
cable modulation-profile 521
iuc request atdma qpsk 0 16 fixed 0 on 0x152 off qpsk0 56 1 1536 0 off 0 off
iuc initial atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc station atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc a-short atdma 256qam 0 150 short 4 on 0x18ea off qpsk1 104 10 1536 0 off 0 off
iuc a-long atdma 256qam 0 232 short 0 on 0x18ea off qpsk1 64 1 1536 0 off 0 off
iuc a-ugs atdma 256qam 10 232 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
cable modulation-profile 521 description "256QAM ATDMA"
cable modulation-profile 522
iuc request atdma qpsk 0 16 fixed 0 on 0x152 off qpsk0 56 1 1536 0 off 0 off
iuc initial atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc station atdma qpsk 0 34 fixed 0 on 0x152 off qpsk0 384 1 1536 0 off 0 off
iuc a-short atdma 64qam 4 150 short 4 on 0x18ea off qpsk1 104 1 1536 0 off 0 off
iuc a-long atdma 256qam 10 232 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
iuc a-ugs atdma 256qam 10 232 short 0 on 0x18ea off qpsk1 128 1 1536 0 off 0 off
Thanks cmcaldas,
unfortunately, I need 8 US channel bonding group for tests... (Compal). It is required by client :-( I am now looking for something like this: (CC8800-F (D3.1)) :
http://www.zcorum.com/wp-content/uploads/Sumavision-Specifications.pdf
Have you got any experience with mini cmts?
Hi,
RX48 cards provide up to 6 RF channels/upstream port.
In order to make you scenario happen you will need to connect 2 Upstream ports with a Value Line 2-Way Splitter (VSS2) and use like 4 RF channels/upstream port.
Let's say you will start upstream frequency 30Mhz and above.
Using 64QAM with a 3.2Mhz channel-width you will have to configure something like :
Upstream port 0
30Mhz
34Mhz
38Mhz
42Mhz
Upstream port 1
46Mhz
50Mhz
54Mhz
58Mhz
getting a result of 120 Mbps=15 * 8
if you use 6.4Mhz channel width you will have :
Upstream port 0
30Mhz
37Mhz
44Mhz
51Mhz
Upstream port 1
58Mhz
65Mhz
72Mhz
79Mhz
Some modems accept up to 65Mhz. Your modem should have to accept up to 85Mhz in order to make it work.
Also using 8 frequencies is not good as the chance to get signal problem will rise.
While you can use 4 frequencies but using 64QAM, 6.4Mhz channel-width
you will have the same BW but less frequencies also you don't have to add other elements like VSS2 or smth like that.
30 * 4 = 120 Mbps
Endrit