DJVageli Posted June 2, 2005 CID Share Posted June 2, 2005 Ok guys I have a Docsis 1.1 cable modem,and we all know that cable companies are planning to increase their speeds real soon.Cox and Adelphia have already stated they will but also said it will require a Docsis 2.0 modem.My question is will my Docsis 1.1 modem be able to handle the speeds once TWC decides to increase also,or will I have to switch to a 2.0 modem? Quote Link to comment Share on other sites More sharing options...
tbaker397 Posted June 2, 2005 CID Share Posted June 2, 2005 i'm not too sure on this, but the spead increases schedules should be able to be handled by a Docsis 1.1 modem. 2.0 is just a standard for faster speeds. Quote Link to comment Share on other sites More sharing options...
DJVageli Posted June 2, 2005 Author CID Share Posted June 2, 2005 Ok because im curious on this,I always wondered why I had a 1.1 instead of a 1.0 And if I have to switch to a 2.0 Docsis it would be a hassle. Quote Link to comment Share on other sites More sharing options...
tbaker397 Posted June 2, 2005 CID Share Posted June 2, 2005 not at all, just make sure the modem is a DOCSIS 2.0 modem. I'm pretty sure a Motorola Surfboard 5100 or a 5120 are 2.0 Quote Link to comment Share on other sites More sharing options...
cak46 Posted June 2, 2005 CID Share Posted June 2, 2005 SB5100 is docsis 2.0. Quote Link to comment Share on other sites More sharing options...
tbaker397 Posted June 2, 2005 CID Share Posted June 2, 2005 what are the respective caps on the modem for 1.1 and 2.0 i thought 1.1 was up around 40 and 2 was like 100? i saw what is was but cant find it. Quote Link to comment Share on other sites More sharing options...
DJVageli Posted June 2, 2005 Author CID Share Posted June 2, 2005 So then I might not have to change modems yet,if the 1.1 can support up to 40Mbps than im fine.Its not like TWC is gonna give an increase of 35Mbps Quote Link to comment Share on other sites More sharing options...
cak46 Posted June 2, 2005 CID Share Posted June 2, 2005 Specs for the sb5100 # Downstream demodulation: 64 or 256 QAM # Downstream maximum data rate: 38 Mbps # Downstream bandwidth: 6 MHz # Downstream symbol rate: 64 QAM 5.069 Msym/s # Downstream symbol rate: 256 QAM 5.361 Msym/s # Downstream operating level range: -15 to +15 dBmV # Downstream input impedance: 75 ohms (nominal) # Downstream frequency range: 88 to 860 MHz # Upstream modulation: 8, 16, 32, 64, 128 QAM or QPSK (with A-TDMA or S-CDMA enabled CMTS) # Upstream maximum data rate: Up to 30 Mbps # Upstream bandwidth: 200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz, 6.4 MHz (with A-TDMA or S-C DMA enabled CMTS) Edit: tech info for sb4200 # Speed: Maximum: 38 Mbps downstream, up to 10 Mbps upstream # Modem type: Cable # Interface: F-Connector, female, 75 ohm (cable), USB (computer) # Data protocol: TCP/IP # Chipset manufacturer: Broadcom (BCM 3345 chip) # Auto detect: Yes # Number of users: Up to 32 users (1 via USB and up to 31 via Ethernet, or 32 users on Ethernet) # V.90 compatible: No # K56flex compatible: No # Operating System support: Windows 95/98/2000/NT/Me/XP, Macintosh, and UNIX computer systems # Cellular ready: No # Installation: User # Installation guide: Yes From what I read, it can be dependent upon the modem you're using..... For these two, the only difference is the upstream capability. Quote Link to comment Share on other sites More sharing options...
tbaker397 Posted June 3, 2005 CID Share Posted June 3, 2005 no docsis 2.0 is a standard and i think 38/30 is it. however i think that the 4200 is a 1.1 modem. because of the 38/10 max is so, your sitll fine. but yea, i dont see ANY CableCo giving increases THAT big any time soon Quote Link to comment Share on other sites More sharing options...
cak46 Posted June 3, 2005 CID Share Posted June 3, 2005 no docsis 2.0 is a standard and i think 38/30 is it. however i think that the 4200 is a 1.1 modem. because of the 38/10 max is so, your sitll fine. but yea, i dont see ANY CableCo giving increases THAT big any time soon It would be nice though......... Quote Link to comment Share on other sites More sharing options...
DJVageli Posted June 3, 2005 Author CID Share Posted June 3, 2005 Yea it would And where would I be able to check the specs of my modem? I have the Toshiba PCX 2500 Quote Link to comment Share on other sites More sharing options...
cak46 Posted June 3, 2005 CID Share Posted June 3, 2005 http://www.toshiba.com/taisnpd/products/pcx2500_techspecs.html Here it is.... FIOS....Where are youuuu............? Sooon to be here in my area, hopefully. Quote Link to comment Share on other sites More sharing options...
DJVageli Posted June 3, 2005 Author CID Share Posted June 3, 2005 http://www.toshiba.com/taisnpd/products/pcx2500_techspecs.html Here it is.... FIOS....Where are youuuu............? Sooon to be here in my area, hopefully. Cool,thanks. From what I see, it can support up to 43 Mbps on a 256 QAM,so thats pretty fast for a Docsis 1.1,but it doesnt say anything about upload. And for FIOS,supposedly its supposed to be in my area too soon,but the pace is real slow Quote Link to comment Share on other sites More sharing options...
cak46 Posted June 3, 2005 CID Share Posted June 3, 2005 Yeah... Found information that says your modem supports the max for docsis. www.toshiba.com/taisnpd/products/pcx2500.pdf Hopefully sooner than later! Quote Link to comment Share on other sites More sharing options...
DJVageli Posted June 3, 2005 Author CID Share Posted June 3, 2005 Yeah... Quote Link to comment Share on other sites More sharing options...
cak46 Posted June 3, 2005 CID Share Posted June 3, 2005 So in other words lol,I dont ever have to switch modems.When they go to Docsis 2.0 and 3.0 my modem can support it It also says it comes with advanced diagnostics,but I dont know how to check it.I know some people are able to check how their modem is performing and the signal,but mine doesnt work Not necessarily... i'm not up on infrastructure of cable plant, but one adelphia tech told me they had removed docsis 1.1 from the part of their system that I am on, since they had replaced the modems of the customers. Not sure whether this means the systems are not backward compatible. Frankly, I don't know. Here is the ip for your 1 internal modem diag. screen. Enter the ip in the explorer address screen, then click Go. Saw literature on DocsDiag, a program that comes with your modem for diagnostics? Edit: might help to have the ip : 192.168.100.1 Quote Link to comment Share on other sites More sharing options...
DJVageli Posted June 3, 2005 Author CID Share Posted June 3, 2005 I tried going to that but it says Action canceled And for that thing with Adelphia,it might happen to me also,but nothing wrong with that,if they require me to switch for increased speeds,ill switch Quote Link to comment Share on other sites More sharing options...
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