Arris CM8200

Overview
2×2 DOCSIS 3.1 & 32×8 DOCSIS 3.0

The Arris CM8200 is a DOCSIS 3.1 layer-2 cable modem approved by several ISPs and widely distributed in Australia for HFC (hybrid fibre coaxial) implementations of the National Broadband Network (NBN). Two revisions exist, A and B. Apparently the CM8200 is functionally identical to the SB8200. It has one coaxial F connector for connection to a cable network (supports 5—204 MHz upstream; 108—1002 MHz downstream), and two RJ45 ports which are implemented differently depending on the vendor.

NBN features

 * On NBN units, the RJ45 ports are labelled UNI-D1 and UNI-D2, and normally on UNI-D1 is used
 * The web GUI is inaccessible after the configuration is loaded

Variants

 * CM8200A: NA DOCSIS, PN 1000336
 * CM8200B: EURO DOCSIS, PN 1000225

Links of Interest

 * Datasheet at arris.com
 * Product brochure at arris.com
 * Product page at Whirlpool forums

Support
 * Manual at Cox
 * Support page at Cox
 * Status lights at iiNet
 * National Broadband Network (Australia)

Forum threads

 * Arris SB200 vs CM8200 at DSL Reports
 * Arris CM8200 NBN HFC modem web interface? at Whirlpool
 * Arris HFC modem - Find Sync Speed? at Whirlpool
 * Touchstone CM8200 DOCSIS 3.1 Cable Modem not fully supported? at /r/comcast
 * Arris SB8200 cable modem - thoughts? at Ars Technica