ANSI/TIA 570BResidential Telecommunications Infrastructure Standard

1Updated Dec 2016 PRGodin©PRGodin @gmail.com

IntroductionOriginally a standard for small

commercial buildings the 570B standard has migrated to primarily address residential installations.

Communication infrastructures are still relatively new in the residential construction market but have become common for new construction.

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General RequirementsCommunication cabling infrastructures in

single-dwelling residences need to support a wide variety of communication requirements. The cabling structure needs to address:VoiceDataVideoSecurityWhole-home audioControl system

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Single Dwelling Residence Infrastructure

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Grades of Residential CablingGrade 1: Basic

Provides for basic telecommunication services. Minimum: One 4-pair UTP (Cat5e or better) One 75Ω Coax

Grade 2: IntermediateProvides for basic to intermediate service

needs. Minimum: Two 4-pair UTP (Cat5e or better) Two 75Ω Coax Optional 2-fiber optical cabling

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Some DefinitionsDemarcation point: Point where

ownership of the hardware changesDistribution Device (DD): Central

facility used to connect outlets within the residence and to the service providers

ADO Cable: Connectorized cable assembly used to connect between the demarcation point and the DD.

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Typical 570B Residential Installation

7Source: ANSI-TIA-EIA-570 Standard

The Distribution Device (DD)The DD may consist of:

Passive cross-connectionsActive cross-connectionsA combination of passive & active cross-connections

The DD is installed within the tenant’s space in a centralized location that is easy to access

The DD should be capable of handling all communication requirements

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Space for the DDThere is a guideline for space to allocate for

the DD

The DD can be installed either on a backboard or between wall studs.

Multiple interconnected DDs may be used within the same space

DDs usually require electrical service9

DD Space Allocation Chart

10Source: ANSI-TIA-EIA-570 Standard

Outlet CablesCables are run from the DD to the

telecom outlets in a star topology.Cables shall not exceed 90 meters,

with an additional 10 meters for patch cords and jumpers.

Recognized cables:4pr UTP (cat 5e or better)Coax RG-6 (RG59 for CCTV only) foil &

braidOptical fiber (50, & 62.5 MM, SM)

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Room RequirementsMinimum of one outlet location for each of

these rooms:KitchenBedroomFamily RoomDen/Study Room

Additional outlets should be installed where:there is more than 3.7 meters (12ft) along a

continuous wallThere is more than 7.6 meters (25ft) along a

broken wall12

Examples of Room Outlet Location

13Source: ANSI-TIA-EIA-570 Standard

Cable PathwaysEfforts should be made to conceal the

cabling within the walls of the building especially in new construction and remodeling.

14image: howto.techworld.com

Special Case CablingAlarm, Control and other cables may fall under

the jurisdiction of local and national codes and laws.

The standard provides installation suggestions but is not meant to overrule specific legal and performance requirements.

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Special Case: Alarm/Security CableSecurity alarm systems may consist of:

Sensors Motion, breakage or shock detectors Door and window contacts Sound & Pressure sensors Water & temperature sensors Smoke, heat and CO2 sensors

Control panels Entry keypads and manual activators 1 and/or 2-way audio and/or video Alerting devices (siren, strobes, bells, etc) Remote (personal) devices Door and window latch operators Lighting control Remote connection

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Alarm/Security Systems CableShould be run in a physical star topology. Daisy-

chaining some devices may be the standard connection method but it is not recommended.

Fire systems are subject to regulation by the US NEC.

Typical security systems cable: 16 or 18 AWG stranded or 22 AWG solid conductors 4 conductor (active devices) or 2 conductor (passive

devices)

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Video Cabling

RG 59 for baseband video (such as CCTV)

RG 6 for broadband (CATV, Satellite)

Cat 5e/6 may be used with a balun

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Home AudioLocation of the audio systems is important

for performance quality and ease of control. Follow manufacturer recommendations for installation locations and requirements

Three areas of control:Headend (DD) to distribution deviceDistribution device to volume controlVolume control to the speaker

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Audio CableHeadend (DD) to distribution:

one cat 5e/6 4 conductor speakers for left and right 2 conductors for control

Distribution to Volume control & Volume control to speakers one cat 5e/6 4 conductors for 1 or 2 speakers

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Audio Cable AWG The AWG is based on the wattage of the speakers and the

length of the cable. Conductors should be red(+) and black(-), and for 4-conductors should include white(+) and green(-).

22Source: ANSI-TIA-EIA-570 Standard

Control SystemsClimate control, lighting control and

other home automation:Recommend following manufacturer’s

recommendations for cablingThe standard recommends running a can

5e/6 between the active elements of the system to “accommodate a large variety of climate control options”.

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Multi-Dwelling & Campus InfrastructuresMulti-dwelling buildings may have a single

services demarcation and redistribute the service to the individual dwellings.

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Serv

ices

Prov

ider

(s)

ADO/DD

Unit 1

ADO/DD

Unit 2

ADO/DD

Unit 3

Unit 4 Unit 5

ADO/DD

Unit 6

Unit 7

ADO/DD

Unit 8

ADO/DD ADO/DD

Common Equipment

Room

ADO/DDEntrance

Facility

DistancesThe Entrance Facility should be connected to a

separate common Equipment Room. This room should permit shared access for services and for the building management’s services.

If the distance from the ER to the furthest dwelling is more than 150 meters the service provider should be advised.

Limitations between the DD an outlets in the dwelling are limited to a maximum of 90 meters.

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Larger Multi-Dwelling & Campus InfrastructuresIf there are a large number of floors or units a CTR,

or Common Telecommunications Room, should be located on each floor or on each 3rd floor.

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Serv

ices

Prov

ider

(s)

ADO/DD

Unit 1

ADO/DD

Unit 2

ADO/DD

Unit 3

Unit 4 Unit 5

ADO/DD

Unit 6

Unit 7

ADO/DD

Unit 8

ADO/DD

Common Equipment

Room

ADO/DDEntrance

Facility

CTR

ADO/DDCTR

Campus Telecommunication RequirementsCampus environments may consist of

separate buildings.Interconnecting backbones should be

contained within conduit, aerially or within interconnecting tunnels.

Building entrance protection must be implemented where required

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Backbone CablingMulti-conductor copperMulti-pair 100Ω UTPSeries 6 & 11 coax (RG6 triple and

quad shield and RG11)Series 59 coax (CCTV only)Other coaxial (“hardline”)Fiber Optics (50 & 62.5MM, SM)

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Telecommunications OutletTelephone outlet with mounting studs

permitted8 position mod jacks that meet the

568 standards (may be used with 6 pos plugs)

Coax F connectors

Recommendation is that patch cords be factory made.

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Other IssuesAll firestop requirements must be

followedSecondary protection must be

installedGrounding must be implemented

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Electromagnetic NoiseData communications cable must be run with at

least 2 inches of separation from a parallel power cable within a wall and 6 inches of separation from cables going to active security devices.

Security cable must maintain at least 6 inches of separation from power cables.

Audio cable should have at least 12 inches of separation from data communication cable

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Typically 12” of separation is recommended in all cases.

Testing and AdministrationTesting should follow the 568C

standards

Administration should follow the 606B standards.

Pathways planning should follow the 569B standard.

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ConclusionThe 570B standard addresses small

installations and installations for residential units. These installations typically make use of a greater variety of communication requirements.

The standard relies on other standards for administration, testing, cable performance and documentation. 33

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