nanog mailing list archives
Re: Fwd: Rollup: Small City Municipal Broadband
From: Jason Baugher <jason () thebaughers com>
Date: Sat, 2 Feb 2013 20:03:52 -0600
On Feb 2, 2013 3:33 PM, "Scott Helms" <khelms () zcorum com> wrote:
......
This is not correct. DOCSIS is an MPEG stream over QAM or QPSK modulation and there is nothing about it that is compatible to any flavor of PON. In fact if you look at the various CableLabs standards you'll see DPoE ( http://www.cablelabs.com/dpoe/specifications/index.html) which lists how a DOCSIS system can inter-operate and provision an PON system. If you look
at Jay may be referring to something I alluded to earlier, what Calix refers to as RF overlay. The RF signal from the traditional cable system is converted to 1550nm and combined onto the PON before the splitter with a CWDM module. Certain model ONT's split the 1550 back off and convert back to an RF port.
Current thread:
- Rollup: Small City Municipal Broadband Jay Ashworth (Feb 02)
- Re: Rollup: Small City Municipal Broadband Scott Helms (Feb 02)
- Re: Rollup: Small City Municipal Broadband Jay Ashworth (Feb 02)
- Re: Rollup: Small City Municipal Broadband Scott Helms (Feb 02)
- Message not available
- Message not available
- Fwd: Rollup: Small City Municipal Broadband Scott Helms (Feb 02)
- Re: Fwd: Rollup: Small City Municipal Broadband Brandon Ross (Feb 02)
- Re: Fwd: Rollup: Small City Municipal Broadband Scott Helms (Feb 02)
- Re: Fwd: Rollup: Small City Municipal Broadband Tim Jackson (Feb 02)
- Re: Rollup: Small City Municipal Broadband Jay Ashworth (Feb 02)
- Re: Rollup: Small City Municipal Broadband Jay Ashworth (Feb 02)
- Re: Fwd: Rollup: Small City Municipal Broadband Jason Baugher (Feb 02)
- Re: Fwd: Rollup: Small City Municipal Broadband Scott Helms (Feb 02)
- Re: Fwd: Rollup: Small City Municipal Broadband Jean-Francois Mezei (Feb 02)
- Re: Rollup: Small City Municipal Broadband Jay Ashworth (Feb 02)
- Re: Rollup: Small City Municipal Broadband Jean-Francois Mezei (Feb 02)
- Re: Rollup: Small City Municipal Broadband Jay Ashworth (Feb 03)
- Re: Rollup: Small City Municipal Broadband Leo Bicknell (Feb 03)
- Re: Rollup: Small City Municipal Broadband Scott Helms (Feb 03)
- Re: Rollup: Small City Municipal Broadband Joe Abley (Feb 03)
- Re: Rollup: Small City Municipal Broadband Scott Helms (Feb 03)
- Re: Rollup: Small City Municipal Broadband Fletcher Kittredge (Feb 03)
- Re: Rollup: Small City Municipal Broadband Scott Helms (Feb 02)