Multimedia over Coax Alliance


The Multimedia over Coax Alliance is an international standards consortium that publishes specifications for networking over coaxial cable. The technology was originally developed to distribute IP television in homes using existing cabling, but is now used as a general-purpose Ethernet link where it is inconvenient or undesirable to replace existing coaxial cable with optical fiber or twisted pair cabling.
MoCA 1.0 was approved in 2006, MoCA 1.1 in April 2010, MoCA 2.0 in June 2010, and MoCA 2.5 in April 2016. The most recently released version of the standard, MoCA 3.0, supports speeds of up to. This technology is not yet available in customer premises equipment.
WWW Official Site𝕏 MoCABlog

Membership

The Alliance currently has 45 members including pay TV operators, OEMs, CE manufacturers, and IC vendors.
MoCA's board of directors consists of Arris, Comcast, Cox Communications, DirecTV, Echostar, Intel, InCoax, MaxLinear and Verizon.

Technology

Within the scope of the Internet protocol suite, MoCA is a protocol that provides the link layer. In the seven-layer OSI model, it provides definitions within the data link layer and the physical layer. DLNA approved of MoCA as a layer 2 protocol. A MoCA network can contain up to 16 nodes for MoCA 1.1 and higher, with a maximum of 8 for MoCA 1.0. The network provides a shared-medium, half-duplex link between all nodes using time-division multiplexing; within each timeslot, any pair of nodes communicates directly with each other using the highest mutually-supported version of the standard.

Versions

; MoCA 1.0: The first version of the standard, MoCA 1.0, was ratified in 2006 and supports transmission speeds of up to 135 Mbit/s.
; MoCA 1.1: MoCA 1.1 provides 175 Mbit/s net throughputs and operates in the 500 to 1500 MHz frequency range.
; MoCA 2.0: MoCA 2.0 offers actual throughputs up to 1 Gbit/s. Operating frequency range is 500 to 1650 MHz. Packet error rate is 1 packet error in 100 million. MoCA 2.0 also offers lower power modes of sleep and standby and is backward compatible with MoCA 1.1. In March 2017, SCTE/ISBE society and MoCA consortium began creating a new "standards operational practice" to provide MoCA 2.0 with DOCSIS 3.1 interoperability. Interoperability is necessary because both MoCA 2.0 and DOCSIS 3.1 may operate in the frequency range above 1 GHz. The standard "addresses the need to prevent degradation or failure of signals due to a shared frequency range above 1 GHz".
; MoCA 2.5: MoCA 2.5 offers actual data rates up to 2.5 Gbit/s, continues to be backward compatible with MoCA 2.0 and MoCA 1.1, and adds MoCA protected setup, Management Proxy, Enhanced Privacy, Network wide Beacon Power, and Bridge detection. MoCA Access is intended for multiple dwelling units such as hotels, resorts, hospitals, or educational facilities. It is based on the current MoCA 2.0 standard which is capable of 1 Gbit/s net throughputs, and MoCA 2.5 which is capable of 2.5 Gbit/s.
; MoCA 3.0: The MoCA 3.0 standard has been released and increases the maximum throughput to 10 Gbit/s. However, this is not yet available to customers.

Frequency band plan

ChannelFrequency,
center 		MoCA 1.1
channel		MoCA 2.0
primary		MoCA 2.0
secondary		Beacon
channel
EE1450
EE2475
E1500
E2525
E3550
E4575
E5600
EE3625
EE4650
------------------
F1675
F2700
F3725
F4750
F5775
F6800
F7825
F8850
------------------
A1875
B1900
------------------
C1925
C2950
C3975
C41000
------------------
D11150
D1a1175
D21200
D2a1225
D31250
D3a1275
D41300
D4a1325
D51350
D5a1375
D61400
D6a1425
D71450
D7a1475
D81500
D8a1525
D91550
D9a1575
D101600
D10a1625

Notes:
  • Channel C4 is commonly used for Verizon FiOS for the "WAN" link from the ONT to the router.
  • Channels D1-D8 are commonly used for "LAN" links, between set-top boxes and the router.
  • E band channels are commonly used by DirecTV converter boxes. The DirecTV Ethernet-to-Coax Adapter uses MoCA on this "Mid-RF" frequency band.
  • D10A 100 MHz wide means it goes up to 1675 MHz, so splitters need to be 5-1675 MHz.