ETSI TS 105 176-2 V1.1.1 (2019-06)

Access, Terminals, Transmission and Multiplexing (ATTM); Ethernet and power over cables; Part 2: Ethernet and power over coaxial cables for IP video surveillance

DTS/ATTMSDMC-6

General Information

• Status: Published
• Publication Date: 06-Jun-2019
• Technical Committee: ATTM SDMC - Sustainable Digital Multiservice Communities
• Current Stage: 12 - Completion
• Due Date: 16-May-2019
• Completion Date: 07-Jun-2019

Standards Content (Sample)

ETSI TS 105 176-2 V1.1.1 (2019-06)






TECHNICAL SPECIFICATION
Access, Terminals, Transmission and Multiplexing (ATTM);
Ethernet and power over cables;
Part 2: Ethernet and power over coaxial cables
for IP video surveillance

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2 ETSI TS 105 176-2 V1.1.1 (2019-06)



Reference
DTS/ATTMSDMC-6
Keywords
HomePlug av, ip, power over coaxial cable, smart
appliance, smart city, video, video security, video
surveillance
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3 ETSI TS 105 176-2 V1.1.1 (2019-06)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Executive summary . 5
Introduction . 6
1 Scope . 7
2 References . 7
2.1 Normative references . 7
2.2 Informative references . 7
3 Definition of terms, symbols and abbreviations . 8
3.1 Terms . 8
3.2 Symbols . 8
3.3 Abbreviations . 9
4 The E&PoC System . . 9
4.1 Introduction . 9
4.2 System overview . 9
4.3 Ethernet & Power over Coax system block diagram . 10
4.3.1 rDEV (Receiver Device) definition . 10
4.3.2 eDEV (Edge Device) / eSYS definition . 11
4.3.3 rSTA (Receiver Station) definition . 11
4.3.4 eSTA (Edge Station) definition . 12
4.4 Supported topologies . 12
4.4.1 Forewords on supported topologies . 12
4.4.2 Linear Bus topology. 12
4.4.3 Point-to-point topology . 12
5 Interoperability requirements for an E&PoC system . 12
5.1 Communication mode background . 12
5.1.1 Specification context. 12
5.1.2 Requirements . 13
5.2 E&PoC System and BSS . 13
5.2.1 Specification context. 13
5.2.2 Requirements . 14
5.3 Neighbour networks . 14
5.3.1 Specification context. 14
5.3.2 Requirements . 15
5.4 Security in E&PoC system . 15
5.4.1 Specification context. 15
5.4.2 Requirements . 15
5.5 Receiver Device (rDEV) per-port PoC reset . 15
5.5.1 Specification context. 15
5.5.2 Requirements . 16
5.6 Support to installation (Optional) . 16
5.6.1 Specification context. 16
5.6.2 Requirements . 16
5.7 Hot-Plug support . 16
5.7.1 Specification context. 16
5.7.2 Requirements . 16
6 Power distribution requirements for an E&PoC system . 17
6.1 Edge DEV (eDEV) / Edge System (eSYS) power . 17
6.1.1 Specification context. 17
6.1.2 Requirements . 18
6.1.3 Requirements . 18
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4 ETSI TS 105 176-2 V1.1.1 (2019-06)
6.1.4 Requirements . 18
6.2 Receiver Device (rDEV) per-port PoC . 19
6.2.1 Specification context. 19
6.2.2 Requirements . 19
6.3 Receiver Device (rDEV) per-port PoC control (Optional) . 19
6.3.1 Specification context. 19
6.3.2 Requirements . 20
7 Data transmission requirements for an E&PoC system . 20
7.1 Receiver Station / Device throughput capability . 20
7.1.1 Specification context. 20
7.1.2 Requirements . 21
7.2 Adapter eDEV throughput & streaming capability . 21
7.2.1 Specification context. 21
7.2.2 Requirements . 22
7.3 Terminal eDEV throughput & streaming capability . 22
7.3.1 Specification context. 22
7.3.2 Requirements . 22
Annex A (normative): Requirements summary . 24
Annex B (informative): Change History . 25
History . 26


ETSI

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5 ETSI TS 105 176-2 V1.1.1 (2019-06)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Technical Specification (TS) has been produced by ETSI Technical Committee Access, Terminals, Transmission
and Multiplexing (ATTM).
The present document is part 2 of a multi-part deliverable covering the Ethernet and power over cables, as identified
below:
Part 1: "Overview, common and generic aspects";
Part 2: "Ethernet and power over coaxial cables for IP video surveillance".
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
Executive summary
The present document describes standardization specification for an Ethernet & Power over Coax technology intended
to promote the development of interoperable Ethernet & Power over Coax solutions for Video Surveillance.
The Ethernet & Power over Coax (E&PoC) technology standardized in the present document enables an energy
efficient and sustainable transition from legacy analogue Video Surveillance systems to IP Video Surveillance systems
by enabling the transmission of IP data over coaxial cable infrastructures, also called IP-over-Coax solutions, while
ensuring safe and reliable power delivery, hence allowing a robust, manageable and interoperable infrastructure.
The Ethernet & Power over Coax technology (E&PoC) also addresses network extension issue by providing the ability
to extend a Video Surveillance Network with additional IP cameras or devices without having to run an entirely new
cable from the head end device to a new front end device. Ethernet & Power over Coax technology allows
plug-and-play connectivity, allowing seamless connection and addition of a front end device to the network.
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6 ETSI TS 105 176-2 V1.1.1 (2019-06)
The Ethernet & Power over Coax technology (E&PoC) relies on the HomePlug AV family of standards, which is a
robust, very stable and interoperable technology largely deployed over the world for very high rate applications like
in-home LAN extension over power lines, but also in commercial environments such as access networks in Asia.
Introduction
The objective of the present document is to provide requirements that would ensure interoperability between a set of
communication devices, also referred as edge devices (e.g. IP cameras, adapter devices, Power over Coax cameras), and
connected over a coaxial cable infrastructure to a receiver device (e.g. Power over Coax switch device).
The present document provides requirements covering system-level issues - e.g. neighbour networking, receiver device
port reset, hot-plug - power distribution and data transmission over an Ethernet & Power over Coax system.

ETSI

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7 ETSI TS 105 176-2 V1.1.1 (2019-06)
1 Scope
The present document specifies Ethernet & Power over Coax system characteristics in such a way that interoperability
issues arising from the connection of several Ethernet & Power over Coax devices in such system are minimized,
providing a specification that can be used as the basis for testing and certification.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
TM
[1] IEEE Std 1901 -2010: "IEEE Standard for Broadband over Power Line Networks: Medium
Access Control and Physical Layer Specifications".
NOTE: Available at https://standards.ieee.org/findstds/standard/1901-2010.html.
[2] HomePlug AV Specification Version 1.1 May 21, 2007.
NOTE: Available at
https://docbox.etsi.org/Reference/homeplug_av11/homeplug_av11_specification_final_public.pdf.
[3] HomePlug AV Specification Version 2.1 February 21, 2014.
NOTE: Available at
https://docbox.etsi.org/Reference/homeplug_av21/homeplug_av21_specification_final_public.pdf.
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
Not applicable.
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8 ETSI TS 105 176-2 V1.1.1 (2019-06)
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the following terms apply:
Basic Service Set (BSS): set of stations that is compliant with the Basic Service Set (BSS) definition, as described in
IEEE 1901 [1].
E&PoC Basic Service Set (BSS): set of E&PoC stations (E&PoC STAs) forming an E&PoC network
E&PoC Station (E&PoC STA): device or chipset that contains a Medium Access Control (MAC) and physical layer
(PHY) interface to the communication and power medium that are compliant with the specification defined in the
present document
NOTE: One device may embed several E&PoC STA, e.g. an IEEE 1901 power over coax switch device may
embed several chipsets, each chipset being considered as an E&PoC STA (actually an rSTA).
E&PoC System: Ethernet & Power over Coax system made of one or more receiver stations (rSTA) and one or more
edge stations (eSTA) - i.e. multiple E&PoC BSSs) - as defined in clause 4.3.1
edge Device (eDEV): communication device having edge connectivity - e.g. PoC IP camera, PoC adapter as defined in
clause 4.3.2
NOTE: There are 2 types of eDEVs: Adapter eDEV and Terminal eDEV. Terminal eDEV devices are typically
Ethernet and IP devices. Such IP devices may implement an IPv4 or an IPv6 stack, supporting either a
fixed or a dynamic (e.g. DHCP) IP configuration, and providing adequate user interface to configure the
IP addresses.
edge Station (eSTA): E&PoC edge station, as defined in clause 4.3.4
edge System (eSYS): both Terminal eDEV or entity composed of an Adapter eDEV and the communication device
(e.g. an IP camera) connected to this Adapter eDEV
HomePlugAV Station: device that contains an HomePlugAV-conformant Medium Access Control (MAC) and
PHYsical layer (PHY) interface to the communication and power medium, compliant with either [2] or [3]
IEEE 1901 Station: device that contains an IEEE 1901-conformant Medium Access Control (MAC) and physical layer
(PHY) interface to the communication and power medium, compliant with [1], [2] and [3]
linear bus topology: topology wherein at least two eDEV / eSYS are connected to a same rDEV port, using
T-connectors
point-to-point topology: topology wherein only one eDEV / eSYS is connected to an rDEV port
Power over Coax (PoC): ability for an rDEV to provide power to an eDEV / eSYS through a coaxial cable
receiver Device (rDEV): communication device having receiver capability - e.g. PoC switch, as defined in
clause 4.3.1
receiver Station (rSTA): E&PoC receiver station, as defined in clause 4.3.3
User Interface (UI): mechanism (preferably keyboard and display) to enable user interaction with the network, as
defined in [1], [2] or [3]
3.2 Symbols
Void.
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9 ETSI TS 105 176-2 V1.1.1 (2019-06)
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
1901 STA IEEE 1901 Station
AV Audio Video
AVLN Audio Video Logical Network, HomePlug AV IN-Home Logical Network
BM BSS Manager
BSS Basic Service Set
CI Crosstalk Interference
DEV Device
E&PoC BSS E&PoC Basic Service Set
E&PoC STA E&PoC Station
E&PoC Ethernet and Power over Coax
eDEV E&PoC edge Device
eSTA E&PoC edge Station
eSYS edge System
FFT Fast Fourier Transform
IP Internet Protocol
LAN Local Area Network
MAC Medium Access Control
NMK Network Management Key
NN Neighbour Network
OFDM Orthogonal Frequency Division Multiplexing
PHY Physical layer
PoC Power over Coax
rDEV E&PoC receiver Device
rSTA E&PoC receiver Station
STA Station
UI User Interface
UIS User Interface Station
VMS Video Management System
4 The E&PoC System
4.1 Introduction
The clause 4 provides an overview of an E&PoC System for video surveillance, focusing on the several system devices
and wiring infrastructure, as well as the network topologies for this system.
4.2 System overview
An E&PoC System allows transferring data between an Edge Device (eDEV), as defined in clause 4.3.2, and a Receiver
Device (rDEV), as defined in clause 4.3.1, over a coaxial cable infrastructure. Typically, an Edge Device (eDEV) is
sending one or more video streams to the Receiver Device (rDEV). Both eDEV and rDEV are relying on IEEE Std.
1901-2010 and HomePlugAV MAC and PHY layers to operate layer 1 and 2 communication (as defined in [1], [2] and
[3]). These video streams are further conveyed to a remote Video Management System (VMS) and/or recorded on a
dedicated server, through a dedicated LAN.
An E&PoC System also allows transferring power from a Receiver Device (rDEV) to an Edge Device (eDEV) - e.g. a
PoC camera - or an Edge System (eSYS) - e.g. an Adapter device connected to an IP camera - over a coaxial cable
infrastructure.
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10 ETSI TS 105 176-2 V1.1.1 (2019-06)

Figure 1: E&PoC system and topology example
4.3 Ethernet & Power over Coax system block diagram
4.3.1 rDEV (Receiver Device) definition
An E&PoC receiver device, or rDEV, is an E&PoC device having receiver capability.
An E&PoC receiver device (rDEV) shall provide coaxial cable connectivity.
An rDEV is in charge of receiving video streams from one or more eDEV it is connected to, while supplying power to
these eDEV through a Coax cable.
An rDEV may embed one or more rSTAs (see also clause 4.3.3).
A typical Receiver Device is a PoC switch device, which is compliant with the present specification document.
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11 ETSI TS 105 176-2 V1.1.1 (2019-06)

Figure 2: E&PoC system block diagram
4.3.2 eDEV (Edge Device) / eSYS definition
An E&PoC edge device, or eDEV, is an E&PoC device connected to an rDEV device through a coaxial cable, through
one of the topologies defined in clause 4.4.
An E&PoC edge device (eDEV) shall provide coaxial cable connectivity.
An eDEV embeds exactly one eSTA (see also clause 4.3.4).
A Typical Edge Device may be a PoC adapter, connected to a PoE camera, or a PoC camera (as displayed in Figure 1),
which are compliant with the present specification document.
An eDEV shall belong to one of the two following eDEV types:
• Adapter eDEV. An adapter eDEV is in charge of forwarding data content - e.g. video stream(s) - from a
communication device (e.g. an IP camera) to the rDEV it is connected to, while receiving power from this
rDEV through the coaxial cable. An Adapter eDEV shall be capable of forwarding power to its connected
communication device.
NOTE: Local powering of the connected communication device, even if not prevented, is out of the scope of the
present document and should be addressed in a future specification revision.
• Terminal eDEV. A Terminal eDEV is in charge of transmitting data content - e.g. video stream(s) for a camera
- to the rDEV it is connected to, while receiving power from this rDEV through the coaxial cable. Terminal
eDEV devices are IP devices implementing an IPv4 or an IPv6 stack.
The entity composed of an Adapter eDEV and the communication device (e.g. an IP camera) connected to this Adapter
eDEV, is referred to as an eSYS.
A Terminal eDEV is also considered as an eSYS.
Therefore, in the following clauses of the present document, eSYS refers to either an entity composed of an Adapter
eDEV and the communication device (e.g. an IP camera) connected to this Adapter eDEV or a Terminal eDEV.
4.3.3 rSTA (Receiver Station) definition
An rSTA is an E&PoC station (E&PoC STA) embedded in an rDEV. An rSTA is typically an IEEE 1901 (as defined in
[1]) or a HomePlugAV (as defined in [2] or [3]) chipset embedded in an rDEV.
The communication network mode of an rSTA shall be compliant with the requirement of Table 1.
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12 ETSI TS 105 176-2 V1.1.1 (2019-06)
An rSTA may be physically connected to one or more Edge Stations (eSTAs), through one or more rDEV ports.
One or more rSTAs may belong to one same rDEV.
4.3.4 eSTA (Edge Station) definition
An eSTA is an E&PoC station (E&PoC STA) embedded in an eDEV. An eSTA is typically an IEEE1901 (as defined in
[1]) or a HomePlugAV (as defined in [2] or [3]) chipset embedded in an eDEV.
The communication network mode of an eSTA should be compliant with the requirement of Table 1.
An eSTA shall be physically connected to one single rSTA, through one single rDEV port, which provides power
supply to the connected eDEV.
4.4 Supported topologies
4.4.1 Forewords on supported topologies
The present E&PoC specification is addressing the topologies described in clauses 4.4.2 and 4.4.3.
Any other topology is out of the scope of the present document.
4.4.2 Linear Bus topology
In a linear bus topology (as depicted in Figure 1), at least two eDEV / eSYS are connected to
...