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Arris CM820A

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Ultra-High Speed Cable Modem
Arris CM820A.jpg
Support Support page
WikiDevi.wi-cat.ru Arris CM820A
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Status Unknown
Tomato any flavor Incompatible
Platform
BrandModelRev Arris CM820 A (B/C/S)
Type cable modem
CPU1 checkY Intel Puma DNCE2500
CPU1 Type ARMv6 ARMv6TEJ
CPU1 Speed not specified ( 2 cores )
Flash1 Chip Brand? Model?
Flash1 Size 16 MiB16,777,216 B <br />131,072 Kib <br />16,384 KiB <br />128 Mib <br />0.0156 GiB <br />
RAM1 Size 128 MiB134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br />
RAM1 Chip Brand? Model?
ETH chip1 Intel Puma DNCE2500
ETH chip2 Marvell Model?
Cable Modem Spec DOCSIS 3.0: (8 x 4)
Ethernet Port Count 1-1GbE-LAN
Wired Standard IEEE 802.3i/3u/3ab

Ethernet OUI: 00:1D:D2, E8:3E:FC (2 E, -)

Expansion IF types none specified
Power 115-240 VAC ~ 50/60 Hz, 0.3 A
Connector type C7P

Flags:
DOCSIS 3.0

Retail
Availability Comcast
(Est.) release date 30 June 2012
UPC 726947110717
(UPC DB, On eBay)
ASIN B008GG78FU Flag of the United States.svg

For a list of all currently documented Intel Puma SoC's with specifications, see Intel Puma.
For a list of all currently documented Marvell chipsets with specifications, see Marvell.

For a list of all currently documented Arris devices with specifications, see Arris.

Overview

  • DOCSIS 3.0 8x4 (8-downstream, 4-upstream)

Variants

  • CM820A - DOCSIS 3.0 (Comcast)
  • CM820B / CM820S - EuroDOCSIS 3.0 / DOCSIS 3.0
  • CM820C - DOCSIS 3.0 (Japanese)

There would appear to be multiple revisions of this device.

Some seem have a polarized power connector (C7P),
others have a non-polarized Fig-8 connector (C7).

Likely compatible services

Links of Interest

News

CPU: Intel Puma DNCE2500 (DNCE25xx)