USACE / NAVFAC / AFCESA / NASA UFGS-27 54 00.00 20 (April 2006)
-------------------------------
Preparing Activity: NAVFAC Replacing without change
UFGS-16783N (February 2003)
UNIFIED FACILITIES GUIDE SPECIFICATIONS
References are in agreement with UMRL dated January 2009
SECTION 27 54 00.00 20
COMMUNITY ANTENNA TELEVISION (CATV) SYSTEMS
04/06
NOTE: This guide specification covers the requirements for procurement and
testing of a community antenna television (CATV) system for housing units and
for other jobs where the local cable television company provides service to
the facility.
Edit this guide specification for project specific requirements by adding, deleting,
or revising text. For bracketed items, choose applicable items(s) or insert
appropriate information.
Remove information and requirements not required in respective project, whether
or not brackets are present.
Comments and suggestions on this guide specification are welcome and should
be directed to the technical proponent of the specification. A listing of technical
proponents, including their organization designation and telephone number, is
on the Internet.
Recommended changes to a UFGS should be submitted as a Criteria Change Request
(CCR).
NOTE: This guide specification covers the usual methods and frequently used
alternatives for providing conventional CATV systems. It does not include unusual
methods or alternatives which may be required for special applications. The
documentation is intended to be used in conjunction with other guide specifications
required by the design. This specification includes provisions for a CATV system
with the headend amplifier provided by the Contractor. Coordinate with the
local CATV provider as to who will provide the headend amplifier. Modify this
specification accordingly if the headend amplifier is provided by the local
CATV provider.
Use Section 26 20 00 INTERIOR DISTRIBUTION SYSTEM, for empty conduit CATV systems
instead of this section. Include the backboard, outlet, faceplate, and other
special requirements in that section.
NOTE: As a minimum, the Designer shall provide the CATV system loss and tilt
compensation calculations using manufacturer's data and including the amplifier
sizes and system requirements to the EFA/EFD. Project drawings shall show the
cable system, grounding, homeruns, and passive and active devices in a one-line
diagram. Where television mounting brackets are required on a job, provide
bracket requirements and details in architectural drawings and specifications.
PART 1 GENERAL
1.1 REFERENCES
NOTE: This paragraph is used to list the publications cited in the text of
the guide specification. The publications are referred to in the text by basic
designation only and listed in this paragraph by organization, designation,
date, and title.
Use the Reference Wizard's Check Reference feature when you add a RID outside
of the Section's Reference Article to automatically place the reference in the
Reference Article. Also use the Reference Wizard's Check Reference feature
to update the issue dates.
References not used in the text will automatically be deleted from this section
of the project specification when you choose to reconcile references in the
publish print process.
The publications listed below form a part of this specification to the extent referenced. The publications are
referred to within the text by the basic designation only.
[INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)IEEE C2(2007; Errata 2007; INT 2008) National Electrical Safety CodeIEEE C62.41.1(2002) IEEE Guide on the Surges Environment in Low-Voltage (1000 V and Less) AC Power CircuitsIEEE C62.41.2(2002) IEEE Recommended Practice on Characterization of Surges in Low-Voltage (1000 V and Less) AC Power Circuits][NATIONAL CABLE AND TELECOMMUNICATIONS ASSOCIATION (NCTA)NCTA RP(2003) NCTA Recommended Practices for Measurements on Cable Television Systems][NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)NFPA 70(2007; AMD 1 2008) National Electrical Code - 2008 Edition][U.S. NATIONAL ARCHIVES AND RECORDS ADMINISTRATION (NARA)47 CFR 76.605Technical Standards][UNDERWRITERS LABORATORIES (UL)UL 1581(2001; Rev thru Jul 2008) Reference Standard for Electrical Wires, Cables, and Flexible CordsUL 1666(2007) Test for Flame Propagation Height of Electrical and Optical-Fiber Cables Installed Vertically in ShaftsUL 969(1995; Rev thru Nov 2008) Marking and Labeling Systems]1.2 RELATED REQUIREMENTS
Section 26 00 00.00 20 BASIC ELECTRICAL MATERIALS AND METHODS, applies to this section with the additions and
modifications specified herein.
1.3 DEFINITIONS
1.3.1 CATV
Community antenna television (CATV) system, commonly referred to as cable television, is a network of cables,
headend, electronic and passive components that process and amplify television (TV) signals for distribution
from the headend equipment to the individual television outlets.
1.3.2 Headend
The connection point between CATV system equipment and equipment provided by the local CATV company.
1.3.3 Distribution System
Distribution system transports and delivers adequate signals to each receiver. Provides distortion-free signal
to TV sets by isolating each receiver from the system and by providing proper amount of signal to each set.
1.3.4 Cable
NOTE: Delete the first bracketed item for single housing units and small systems
where trunk and feeder cables are not used. Edit the last sentence accordingly.
[Trunk and feeder cables are low-loss cables used to transport the desired signal from the headend equipment
to the communications closet in the area to be served. These cables are used to transport signal from the [communications
closet][headend equipment] into close proximity to a number of user locations in excess of 60 meters 200 feet
from the [communications closet][headend equipment]. ]Drop cables are used to transport the desired signal
used from the [communications closet][headend equipment] to the wall outlet.
1.4 SYSTEM DESCRIPTION
1.4.1 Headend
Contractor shall provide interior equipment up to headend [and including the main amplifier] located at the interior
CATV [backboard][cabinet].
1.4.2 Distribution System
NOTE: Choose the bracketed item depending on the CATV system design.
[Distribution system shall be star topology with each outlet connected to a communications closet with a feeder
cable or a drop cable and each communications closet connected to the headend equipment with a trunk cable][Distribution
system shall be star topology with each outlet connected to headend equipment with the drop cable].
1.4.3 Cable
NOTE: Delete the first bracketed item for single housing units and for small
systems where trunk and feeder cables are not used. Edit the last sentence
accordingly.
[Provide trunk cables to transport the desired signal from the headend equipment to the communications closet
in the area to be served. ][Provide [trunk] [feeder] cables to transport signal from the [headend equipment][communications
closet] to user locations in excess of 60 meters 200 feet from the [headend equipment][communications closet].]
Provide drop cables to transport the desired signal from the [communications closet][headend equipment] to the
outlet.
1.4.4 System Components
System shall provide high quality TV signals to all outlets with a return path for interactive television and
cable modem access. Provide any combination of items specified herein to achieve required performance, subject
to approvals, limitations, acceptance test, and other requirements specified herein. System shall include amplifiers,
splitters, combiners, line taps, cables, outlets, tilt compensators and all other parts, components, and equipment
necessary to provide a complete and usable system.
1.4.4.1 System Bandwidth
a. Downstream: 50-750 MHz minimum.
b. Upstream 5-40 MHz minimum.
1.4.5 System Performance
System shall be in compliance with 47 CFR 76.605.
1.4.5.1 Receiver Termination Signal Level
Each termination for a TV receiver must have a minimum signal level of 0 decibel millivolts (dBmV) (1000 microvolts)
at 55 MHz and of 0 dBmV (1000 microvolts) at 750 MHz and a maximum signal of 15 dBmV or a level not to overload
the receiver for the entire system bandwidth.
1.4.5.2 Distribution System
a. Modulation distortion at power frequencies: 4 percent or less hum distortion;
b. Composite third order distortion for:
(1) CW carriers: 53 dB.
(2) Modulated carriers: 59 dB.
c. Subscriber terminal isolation: 18 dB or greater.
d. Carrier to second order beat ratio: 60 dB.
e. Amplitude characteristic shall be within a range of plus or minus 2 decibels from 0.75 MHz
to 5.0 MHz above the lower boundary frequency of the cable television channel, referenced to
the average of the highest and lowest amplitudes within these frequency boundaries.
f. Visual, aural carrier level - 24-hour variation: 47 CFR 76.605, subpart (a), rules (4),
(5), and (6).
g. Frequency determination: 47 CFR 76.605, subpart (a), rules (1),(2), and (3).
1.4.5.3 All New System Tolerance
The system shall not show a serious loss of carrier to noise when the system levels are lowered 3 dB below normal
or a significant distortion when the levels are increased 3 dB above normal, as observed on a TV set located
at the far end extremities of the system.
1.5 SUBMITTALS
NOTE: Review submittal description (SD) definitions in Section 01 33 00 SUBMITTAL
PROCEDURES and edit the following list to reflect only the submittals required
for the project. Submittals should be kept to the minimum required for adequate
quality control.
A “G” following a submittal item indicates that the submittal requires Government
approval. Some submittals are already marked with a “G”. Only delete an existing
“G” if the submittal item is not complex and can be reviewed through the Contractor’s
Quality Control system. Only add a “G” if the submittal is sufficiently important
or complex in context of the project.
For submittals requiring Government approval on Army projects, a code of up
to three characters within the submittal tags may be used following the "G"
designation to indicate the approving authority. Codes for Army projects using
the Resident Management System (RMS) are: "AE" for Architect-Engineer; "DO"
for District Office (Engineering Division or other organization in the District
Office); "AO" for Area Office; "RO" for Resident Office; and "PO" for Project
Office. Codes following the "G" typically are not used for Navy, Air Force,
and NASA projects.
Choose the first bracketed item for Navy, Air Force and NASA projects, or choose
the second bracketed item for Army projects.
Government approval is required for submittals with a "G" designation; submittals not having a "G" designation
are [for Contractor Quality Control approval.][for information only. When used, a designation following the
"G" designation identifies the office that will review the submittal for the Government.] The following shall
be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:
SD-02 Shop Drawings
CATV system wiring diagrams and installation details; G
CATV system components; G
SD-03 Product Data
Attenuators; G
Amplifiers, including [headend, ]trunk, bridging, and distribution; G
Cables, including [trunk, feeder, and ]drop; G
Terminators; G
Splitters/combiners; G
Line Taps; G
Outlets; G
Connectors; G
Tilt compensator; G
Grounding block; G
Submittals for each manufactured item shall be the current manufacturer's descriptive literature
of catalog products, equipment drawings, diagrams, performance and characteristics curves, and
catalog cuts.
SD-05 Design Data
CATV System Loss Calculations; G
SD-06 Test Reports
Operational test plan; G
Operational test procedures; G
System pretest; G
Acceptance tests; G
SD-08 Manufacturer's Instructions
Connector Installation; G
1.6 QUALITY ASSURANCE
1.6.1 Wiring Diagrams and Installation Details
Illustrate how each item of equipment functions in the system and include an overall system schematic indicating
the relationship of CATV units on one diagram. Drawings shall include wiring diagrams and installation details
of equipment indicating proposed locations, layout and arrangements, and other items that must be shown to ensure
coordinated installation.
1.6.2 CATV System Loss Calculations
NOTE: Use second bracketed option in the first sentence for systems that include
amplifiers.
Calculations shall verify that the system does not exceed the loss values specified in dBmV at the [receiver
terminations][input of all active devices and the receiver terminations]. Provide a drawing displaying all distribution
network calculations. The drawing should accurately show taps, splitters, outlets, and the type and length of
all [trunk, feeder, and ]drop cables. The drawing shall show how many taps, splitters, or outlets are served
by each tap or splitter.
1.6.3 Operational Test Plan
NOTE: The test methods in Parts I and II of the NCTA recommended practices
are used to establish proper operating parameters during initial setup and alignment.
They are also used to verify proper operation of a unit following a needed repair.
Only a few of the tests can be used during normal operations of a CATV system
without interruption to the system or the specific channel under test.
Test plan shall define tests required to ensure that the system meets technical, operational, and performance
specifications. Test plan shall be based on NCTA RP and be in accordance with FCC proof of performance requirements.
Test plan shall include plan for testing for signal leakage. Provide test requirements and guidelines.
1.6.4 Operational Test Procedures
Use test plan and design documents to develop test procedures. Procedures shall consist of detailed instructions
for a test setup, execution, and evaluation of test results.
1.6.5 Connector Installation
Provide manufacturer's instructions for installing connectors.
PART 2 PRODUCTS
NOTE: This specification is written for bidirectional devices operating from
5 to 40 MHz and from 50 to 1000 MHz. The lower end, 5 to 40 MHz provides an
active return path and allows ordering of pay-per-view, cable modem and communication
back to the CATV system provider. The 50 to 1000 MHz provides one-way communication
to the user's service. Passive devices are rated 1000 MHz since they require
more work if upgrading of the system is required in the future. Active devices
such as amplifiers are easier to change out, and thus are rated for the current
normal operating requirement of a minimum of 750 MHz. Coordinate with the cable
service provider to ensure these specifications meet their minimum requirements
for CATV service.
2.1 ELECTRONIC EQUIPMENT
Electronic components of similar type shall be produced and designed by the same manufacturer as major components
of the equipment and shall have the manufacturer's name and model permanently attached. Equipment shall function
properly as a complete integrated system. Equipment shall be shielded. The system shall be designed to operate
within 5 to 1000 MHz bandwidth using 1000 MHz passive devices and a minimum of 750 MHz active devices.
2.2 HEADEND EQUIPMENT
NOTE: Use the headend equipment paragraphs when the headend equipment is provided
by the Contractor. Delete when provided by local cable television company.
2.2.1 Headend Amplifiers
NOTE: Broadband amplifiers are used to amplify a number of TV channels. Single-channel
amplifiers are used to amplify a single TV channel.
Provide broadband distribution amplifiers. Amplifiers shall amplify broadband signals from 40 to 750 MHz and
provide an amplified return path for signals from 5 to 40 MHz for 75 ohms impedance. Amplifiers shall be bidirectional
with variable slope and gain control.
2.2.2 Attenuators
Provide attenuators to equalize signal levels, when required. Variable attenuators are not permitted.
2.2.3 Power Supplies
Power supplies shall contain a current limiter circuit to protect against short circuits on the radio frequency
(RF) line. Provide overvoltage protection to protect solid state equipment from line surges and induced voltages,
in accordance with IEEE C62.41.1 and IEEE C62.41.2.
2.3 DISTRIBUTION EQUIPMENT
NOTE: Delete paragraphs for distribution amplifiers when design calculations
indicate they are not required.
2.3.1 Distribution Amplifiers
Distribution amplifiers shall be equipped for 75 ohms input and output impedance. Electronic equipment exposed
to weather shall be equipped with weatherproof housings. Amplifiers shall be bidirectional with variable slope
and gain control and shall amplify broadband signals from 50 to 750 MHz and provide an amplified return path
for signals from 5 to 40 MHz for 75 ohms impedance.
2.3.1.1 Trunk Amplifiers
Trunk amplifiers shall have automatic level and slope control features.
2.3.1.2 Bridging Amplifiers
Bridging amplifiers shall be used to connect feeder cables to trunk cables.
2.3.2 Cables and Associated Hardware
NOTE: For cable subject to moisture from flooding or to atmospheric contamination
such as cable near coastal areas or in cities with significant air pollution,
specify the same cable protected by a black polyethylene jacket with a flooding
or other water migration deterrent compound between the jacket and the aluminum
shield. When this type of cable is required, add the requirement to the item
specifying the jacket and insulation in the applicable cable paragraph(s).
For systems under 90 meters 295 feet from headend equipment to communications
closet or from communication closet to communication closet, provide RG-11 coaxial
trunk cable. For systems exceeding 90 meters 295 feet from headend equipment
to communication closet or from communication closet to communication closet,
consideration should be given to utilizing 625 series cable to reduce system
losses. Edit paragraphs for type of cable required in job. Delete paragraphs
for trunk and feeder cable for single family housing units and for small systems
where only drop cables are used.
Cabling shall be UL listed for the application and shall comply with NFPA 70. Provide a labeling system for
cabling as required by UL 969. Cabling manufactured more than 12 months prior to date of installation shall
not be used.
2.3.2.1 Trunk Cable
UL 1666. Provide trunk cable with an NFPA 70 rating of CATVR.
a. Provide RG-11 coaxial cable with the following characteristics:
(1) #14 AWG copper-clad steel center conductor.
(2) Gas injected foam polyethylene dielectric with nominal 7.11 mm 0.28 inches outer diameter.
(3) Bonded foil inner-shield and 60 percent aluminum braid or quad shield.
(4) 75 ohms impedance.
(5) 82 to 85 percent nominal velocity of propagation.
(6) Black PVC jacket
(7) Maximum attenuation characteristics:
MHz DB/100 m MHz DB/100 m
5 1.25 600 10.43
55 3.15 750 11.97
300 7.38 1000 14.27
350 7.94
450 9.02
500 9.51
MHz DB/100 ft MHz DB/100 ft
5 0.38 600 3.18
55 0.96 750 3.65
300 2.25 1000 4.35
350 2.42
450 2.86
500 2.90
b. Provide 625 Series cable with an NFPA 70 rating of CATVR and the following characteristics:
(1) Copper-clad aluminum center conductor
(2) Seamless aluminum tubing shield
(3) Expanded polyethylene dielectric
(4) 75 ohms impedance
(5) Nominal diameter over outer conductor: 15.88 mm 0.625 inches.
(6) Maximum attenuation at 20 degrees C and 1000 MHz: 6.79 dB/100m 2.07 dB/100 feet
(7) Black medium density polyethylene jacket
(8) Nominal 87 percent velocity of propagation
2.3.2.2 Feeder Cable
NOTE: CATVP is plenum rated cable. Provide type CATVP plenum rated cabling
in ducts, plenums and other air-handling spaces. Choose the first bracketed
option for CATV cable and the second bracketed option for CATVP cable throughout.
Delete feeder cable paragraphs for single family housing units and for small
systems where only drop cables are used.
UL 1581, provide RG-11 coaxial trunk cable with an NFPA 70 rating of [CATV][CATVP] and the following characteristics:
a. #14 AWG copper-clad steel center conductor.
b. [Gas injected foam polyethylene][Foam FEP] dielectric with 7.11 mm .28 inches nominal outer
diameter.
c. Bonded foil inner-shield and a minimum of 60 percent aluminum braid or quad shield.
d. 75 ohms impedance.
e. 81 to 84 percent nominal velocity of propagation.
f. [Black PVC][PVC low smoke polymer or FEP] jacket.
g. Maximum attenuation characteristics:
[ CATV
MHz DB/100 m
50 3.1
100 4.2
200 5.7
400 8.85
700 11.0
1000 14.26
CATV
MHz DB/100 ft
50 .95
100 1.3
200 1.9
400 2.7
700 3.9
1000 4.8
][ CATVP
MHz DB/100 m
50 3.9
100 5.6
200 8.2
400 11.5
700 15.1
900 17.4
1000 18.4
CATVP
MHz DB/100 ft
50 1.2
100 1.7
200 2.5
400 3.5
700 4.6
900 5.3
1000 5.6
]2.3.2.3 Drop Cable
NOTE: CATVP is plenum rated cable. Provide type CATVP plenum rated cabling
in ducts, plenums and other air-handling spaces. Choose the first bracketed
option for CATV cable and the second bracketed option for CATVP cable throughout.
UL 1581. Provide RG 6 coaxial cable with an NFPA 70 rating of [CATV][CATVP] and with the following characteristics:
a. No. 18 AWG copper-clad steel center conductor.
b. Bonded foil inner-shield and 90 percent aluminum braid.
c. Characteristic impedance of 75 ohms.
d. [Gas injected foam polyethylene][Foam FEP] dielectric
e. Nominal capacitance, conductor to shield, of 53 pf per 100 m 16.2 pf per 100 ft .
f. Maximum operating voltage of 350 V RMS.
g. Maximum attenuation:
[
CATV
MHz DB/100 m MHz DB/100 m
10 2.59 700 19.02
50 5.08 1000 22.74
100 7.19
200 10.17
400 14.38
500 15.48
CATV
MHz DB/100 ft MHz DB/100 ft
10 0.81 700 6.0
50 1.46 1000 7.3
100 2.05
200 2.83
400 4.0
500 4.53
][
CATVP
MHz DB/100 m MHz DB/100 m
10 2.3 900 22.6
50 4.9 1000 23.9
100 6.9
200 10.2
400 14.8
700 19.7
CATVP
MHz DB/100 ft MHz DB/100 ft
10 0.7 900 6.9
50 1.5 1000 7.3
100 2.1
200 3.1
400 4.5
700 6.0
]h. [Black polyvinyl chloride (PVC)][PVC low smoke polymer or FEP] jacket.
i. 100 percent sweep testing from 5 MHz to a minimum of 1000 MHz.
2.3.3 Terminators
Terminators shall be rated for 75 ohms and 1/4 watt.
2.3.4 Splitters/Combiners
NOTE: Slope is the straight line of the average response between 54 MHz and
450 MHz. Return loss is a measure of impedance matching.
Use splitters/combiners with characteristics equal to or exceeding the characteristics listed in this paragraph
over the entire operating band. All unused outlets must be terminated with 75-ohm terminators.
a. Peak to Valley: Not to exceed 1 dB across bandwidth of device.
b. Return loss: 18 dB minimum.
c. Bandwidth: 5-1000 Mhz
2.3.5 Line Taps
Line taps shall have 18 dB minimum isolation from each tap to the thru-line.Pressure tapoffs are not permitted.
Taps shall be rated from 5 to 1000 MHz and shall have a peak to valley not to exceed 1 dB to 1 GHz.
NOTE: Designer has the option to provide a combination convenience receptacle
and CATV outlet in one outlet box. If used, provide detail on drawings indicating
combined outlet with isolation barrier between power and communication sections.
2.3.6 Outlets
Provide flush mounted, 75-ohm, F-type connector outlets rated from 5 to 1000 MHz in standard electrical outlet
boxes[ with isolation barrier].
2.3.7 Connectors
NOTE: Delete trunk and feeder cable connectors for housing units and when trunk
cable and feeder cable are not used in job.
Provide one piece connectors. [Trunk and feeder cable connectors shall be pin type. ]Drop cable connectors
shall be feed thru type.
2.3.8 Tilt Compensator
Provide tilt compensators as required.
2.4 GROUNDING AND BONDING
Provide ground rods and connections in accordance with Section 26 20 00, "Interior Distribution System".
2.4.1 Grounding Block
Provide [corrosion-resistant] grounding block suitable for [outdoor][indoor] installation.
2.5 BACKBOARDS
Provide void-free, fire rated interior grade plywood, 19 mm 3/4 inch thick,[ 1200 by 2400 mm][ 4 by 8 feet][
as indicated]. Backboards shall be painted with a gray, nonconductive fire-resistant overcoat. Do not cover
the fire stamp on the backboard.
PART 3 EXECUTION
3.1 INSTALLATION
3.1.1 Distribution System
NOTE: Show cable routing and equipment locations on the drawings.
Distribution system shall conform to requirements specified herein. Installation shall be in accordance with
IEEE C2 and NFPA 70.
3.1.1.1 Raceway
NOTE: Use the bracketed option when conduit stubout is provided for the local
cable television company.
Provide cable installed in raceways such as conduit and cable trays in compliance with NFPA 70. Raceway shall
comply with Section 26 20 00, INTERIOR DISTRIBUTION SYSTEM. [Provide 78 mm 3 inch, minimum, PVC from interior
headend location to exterior CATV company connection location. Coordinate location and requirements with the
local cable television company.]
3.1.1.2 Grounding System
NOTE: Show location of grounding blocks on drawings. Grounding blocks may
be used either inside or outside. Since they are intended to protect equipment
from foreign currents, they are most frequently placed inside, close to the
cable entrance.
Provide the grounding block [at the main CATV backboard][_____]. Ground this device according to the requirements
of IEEE C2 and NFPA 70.
3.1.1.3 Trunk, Feeder, and Drop Cable
NOTE: Delete Trunk and Feeder from the title for housing units and when trunk
and feeder cable are not used in the job.
Provide cable to grounding blocks, to line taps, and to outlets.
3.2 FIELD QUALITY CONTROL
3.2.1 System Pretest
NOTE: Use the first bracketed item requiring the Contractor to align and balance
the system, where amplifiers are provided. For single family housing units,
delete second bracketed item requiring testing at 151 and 547 MHz. Testing
at these frequencies is required for other applications.
Use option for testing at each outlet instead of random sampling and at furthest
outlet when a small number of outlets are provided in the job.
Upon completing installation of the CATV system, the Contractor [shall align and balance the system and ]shall
perform complete pretesting. During the system pretest, Contractor, utilizing the approved spectrum analyzer
or signal level meter, shall verify that the system is fully operational and meets all the system performance
requirements of the specification. Contractor shall test the signal loss in dBmV at 55[, 151, 547,] and 750
MHz. The signal levels shall be 0 dBmV (1000 microvolts), minimum. The signal shall not exceed 15 dBmV over
the entire system bandwidth. Any deficiencies found shall be corrected and revalidated by follow up testing.
Contractor shall measure and record the video and audio carrier levels at each of the frequency levels specified
at each of the following points in the system:
a. Furthest outlet from [each communication closet][service entrance point of connection].
b. A random sampling of 25 percent of the [outlets[from each communication closet]][housing
units].
[c. At each outlet.]
[d. [Headend and ]Distribution amplifier inputs and outputs.]
3.2.2 Acceptance Tests
NOTE: Use option for testing at each outlet instead of random sampling and
at furthest outlet when a small number of outlets are provided in the job.
Contractor shall notify the Contracting Officer of system readiness 10 days prior to the date of acceptance
testing. Contractor shall also coordinate with the local CATV provider and allow them to attend witness tests.
CATV system shall be tested in accordance with the approved test plan in the presence of the Contracting Officer's
representative to certify acceptable performance. System test shall verify that the total system meets all the
requirements of the specification and complies with the specified standards. Contractor shall verify that no
signal leakage exists in conformance with NCTA RP and 47 CFR 76.605. System leakage shall also be tested at
the headend location with signal applied to system. Deficiencies revealed by the testing shall be corrected
[on the [housing units ][outlets] sampled as well as on the [units][outlets] not sampled ]and revalidated by
follow-up testing. Contractor shall conduct testing at each of the following points in the system:
a. Furthest outlet from [each communication closet][service entrance point of connection].
b. A random sampling of 25 percent of the [outlets[from each communication closet]][housing
units] as designated by the Contracting Officer.
[c. At each outlet.]
[d. [Headend and ]Distribution amplifier inputs and outputs.]