DEPARTMENT OF AGRICULTURE
SUBJECT: Service Center Technology Modernization Project
(SCTMP) Wiring/Cabling Specifications for Service Center Agencies’ (SCA)
OPI: The Office of the Chief Information Officer (OCIO)
International Technology Services (ITS) – Infrastructure Definition Division
(IDD), Architecture Definition Branch (ADB)
2. Special instructions/cancellations
6. COMPUTER ROOM PHYSICAL AND SECURITY REQUIREMENTS
7. COMPUTER ROOM ENVIRONMENTAL REQUIRMENTS
8. DEDICATED ELECTRICAL CIRCUITS AND OUTLETS FOR ADP
10. TELEPHONE SYSTEM
11. DISTRIBUTION CLOSETS AND CABLE PATHWAYS
12. DATA CABLING/TELECOMMUNICATIONS
13. LAN/WAN/VOICE CABINET
14. COPIES OF RELATED DOCUMENTS
This Regulation provides the wiring and
cabling requirements to be incorporated when renovating or constructing new
computer rooms for all Service Center Agencies (SCA): Farm Service Agency (FSA), Natural Resources
Conservation Service (NRCS), the Rural Development (RD) mission area, and the
Office of the Chief Information Officer (OCIO) International Technology
The Wiring/Cabling Specifications will become effective immediately upon
issuance of this Regulation.
Directives Rescinded. Not applicable.
National Communications System (NCS) Federal
Telecommunications Recommendation (FTR), FTR1090-1997: Commercial
Telecommunications Cabling Standard.
American National Standards Institute (ANSI)/Telecommunications
Industry Association (TIA)/Electronic Industries Alliance
(EIA)-568: Commercial Building
Telecommunications Wiring Standard.
Building Standard for
Telecommunications Pathways and Spaces.
Residential and Light Commercial Telecommunications Wiring Standard.
Administration Standard for the Telecommunications Infrastructure of
Building Grounding and
Bonding Requirements for Telecommunications.
Telecommunications Infrastructure Standard for Data Centers.
specifications in this regulation shall be used for all OCIO-ITS and SCA space
planning. The Automated Data Processing
(ADP) room standards will be applied to all offices receiving ITS services,
including those offices where no ITS staff is co-located.
specifications define a baseline primarily for SCA field service centers. The requirements for state, regional,
national offices and other organizational units may be unique and may require
higher performance or additional space and power. Deviations from this baseline will be decided
on a case by case basis at the time of a major renovation or solicitation of
The Technical Support Division (TSD) Group Manager
Provide oversight for all ADP room cabling and/or
Verify that all required certifications are received.
Center Leasing Agent will:
Ensure that the specifications in this Regulation are
included in solicitations for offers or lease amendments, as appropriate.
Keep all certifications as part of the official lease
Clearing and Approving Officials:
The TSD Group Manager will approve all final wiring
cable plants before installation begins.
The Infrastructure Operations Division (IOD)
Telecommunications Operations Branch (TOB) will:
Provide the Group Manager with any needed technical
COMPUTER ROOM PHYSICAL
AND SECURITY REQUIREMENTS
to Departmental Regulation (DR) 3901-001, ITS Space Standards for the physical
and security requirements for the computer room.
cable consists of multiple runs, the Lessor shall provide cable trays or
J-hooks to insure that the cable does not come into contact with the suspended
Computer Room Circuits. Provide and install dedicated electrical
circuits with isolated grounds in the Computer Room. Dedicated circuits must be 110 volt,
20-ampere standard three-prong circuits with true earth ground terminated into
orange or other uniquely marked (“computer use only”) duplex outlets. Provide and install duplex outlets for each
dedicated electrical circuit in the Computer room. Dedicated electrical circuits will be used
for the telephone systems. The main
electrical panel for the computer/voice (if computer/voice is available)
equipment will be properly grounded to meet TIA/EIA and Federal Information
Processing Standards (FIPS).
General Office Space Circuits. Provide dedicated electrical circuits with
multiple outlets at designated locations throughout the service center with
multiple outlets to accommodate the peripheral equipment (i.e. computer
Electrical Requirements for Uninterruptible Power
Supply (UPS) Circuit. Critical
servers are required to be connected to the UPS.
Uninterruptible Power Supply (UPS). Dedicated Circuits will be required for use
Number and Type of Circuits. There will be a minimum of 2 (two) 120 volt,
30 amp minimum with true ground, terminated into a twisting-lock
receptacle. Each dedicated circuit must have
insulated, isolated earth ground; conduit ground is not acceptable.
The receptacle will be a NEMA L5-30R twist-locking receptacle.
Location of the UPS receptacle. The UPS receptacle will be located in the
ADP/Computer room where the Local Area Network (LAN)/Wide Area Network
(WAN)/Voice (LWV) cabinet is installed.
The receptacle will be located within a maximum of 4.5 feet from the
back of the United States Department of Agriculture (USDA) wiring cabinet.
sheet of ¾ inch 4 x 8 foot plywood shall be vertically mounted on the wall in
the Computer Room within 3 feet of an electrical outlet and the wiring
cabinet. The backboard should be
attached to the wall using correct mounting hardware and procedures. If the wall is sheet-rocked, attach the
backboard to the studs. If the wall is
concrete, attach the backboard using anchors.
The backboard should be painted with fire retardant paint the same color
as the interior walls of the building.
This will be the extended demarcation point and for the installation of
telephone demarcation point (D-mark) must be provided on a type 66S block on
the backboard for all telephone lines prior to the move date. The telephone system will be moved by USDA to
a new office and will be installed by USDA technicians during move-in.
requiring multiple distribution points within the building or on multiple
floors will comply with ANSI/TIA/EIA-569-B standards.
General Specifications. All premise data/telecommunications cabling
will comply with TIA/EIA-568-B. All new
installations will use Category 6 cabling, as specified in TIA/EIA-568-B.2-1,
or higher. All cabling will meet local
Renovations to buildings which currently comply with TIA/EIA-568-A and
contain Category 5 cable and terminations may continue to use Category 5 wiring
and terminations as specified in TIA/EIA-568-A.
All substantial additions to, or
replacements of, existing wiring should comply with the specifications in 12(a)
Category 5 wiring is unsuitable for Ethernet speeds above 100 Mb/sec.
Copper Cable Installation.
Provide, place, terminate and test Cat-6 certified 100-ohm
Balanced Twisted Pair cables according to applicable standards.
Data cable and voice cables shall be terminated with
Cat-6 compliant terminations (patch panels, wall outlets, etc.).
All Balanced Twisted Pair cables shall be terminated
using the T568A pin/pair assignments as specified in TIA/EIA-568-B and per FTR
Copper Cable Specification. All cable equipment and materials must be
manufactured by facilities that are International Organization for
Standardization (ISO) 9001 registered and certified as follows:
Shall be Cat-6 or Cat-6a rated in accordance with
Shall be four-pair, balanced, 100-Ohm, 24 American Wire
The selected cable must have contiguous, two-foot segment-length
markers printed on the cable jacket. The
markings must also show cable manufacturer, cable model number or name, cable
part number, Cat-6 or Cat-6a designation, a UL or ETL verification designation,
a CMP type, and a “tested to 350 MHz” or above designation.
Shall be tested and certified by the installer to
comply with the previous requirements.
Data Fiber Cable Installation.
Fiber optic cable shall be used for all links in excess
of 90 meters and where appropriate.
There shall be no 90º bends in any fiber cables with a radius of less
than three (3) inches.
All fiber cable links less than 500 meters shall be
6-strands, multimode optical fiber cable.
All Optical Fiber, Conductive, Plenum (OFCP) or Optical
Fiber Conductive Riser (OFCR) rated fiber cable shall be properly grounded at
both ends and may not be installed in the same cable tray or conduit as power
All ANSI/TIA/EIA–568-B requirements for fiber cable
installation, testing, and termination will be observed.
All strands of each fiber cable shall be terminated at
each end of the cable, with either Straight Tip (ST) or Standard Connector (SC)
connectors, as appropriate to the related equipment interface connector, and
will be conveyed to the selected cable contractor upon request.
FIGURE 1 FIGURE
SC Connector ST
Supply several sets of fiber patch cords that should
not only serve immediate switch connection concerns, but allow for possible
switch update connections in the future.
The unused fiber patch cables will be kept in reserve at this site, in
the event that such switch updates do occur.
Data Fiber Cable Specifications.
All fiber cable shall be 6-strand, multimode, tight
buffered, 50 x 125 µm optical fiber, rated OFCP or OFCR as appropriate, and
must be clearly marked as such on the cable sheathing.
All fiber link cable runs, shall be run within orange,
plenum rated inter-duct, and appropriately sized according to the number of fiber
runs to be contained.
Both the fiber cable sheathing and the protective
inter-duct shall be colored orange to denote multimode fiber.
Wall Input/Output (I/O) Face Plates for Work Area
I/O Connections. Work areas will
have a quad or hex outlet plate connector with four or six RJ-45 connectors
(see diagram). Extra outlet plate
connectors will also be required in some common areas. All drops will be identified and numbered on
the office floor plan prior to installation.
Each of the four or six connectors will be cabled with 4-pair balanced
twisted-pair cable. The data cables will
be category 6 as listed in the cable specification block. These cables will be terminated with RJ-45
connectors at the device end. The other
end will be punched down on an RJ-45/110-type patch panel in the LWV wiring
cabinet. Each quad plate MUST be labeled
with the work station number (1, 2, etc.) and the A, B, C etc. format. Each connection MUST be identified as (1A,
1B, 2A, 2B, etc.) on the corresponding patch panel location.
A, B, C – Data Ports
A, B, C, D, E – Data
Port D – Phone Port F – Phone
Government will provide the LAN/WAN/VOICE cabinet, and a cable installation
contractor will provide and install the wiring, cabling, and patch panels in
the cabinet as specified by the TSD Group Manager. Patch panels will be RJ-45/110 type and
appropriately-sized, based upon the number of quad and/or hex outlet
plates. A wire service loop that will
allow the cabinet to freely move a minimum of six feet in any direction will be
installed by the cable installation contractor as part of the cable
installation. The RJ-45/110 type patch
panel must be mounted in the cabinet in the place designated by the TSD Group
Copies of FTRs.
Copies of FTRs are available from:
The National Communications System (NCS),
Technology and Standards Division (N6)
South Court House Road
Telephone (703) 607-6204
Copies of the specifications and related documents. Copies of the specifications and related
documents can be obtained from:
Global Engineering Documents
Inverness Way East
Telephone (800) 854-7179 or (303) 397-7956
National Resource for Global Standards, www.nssn.org.
all questions concerning this notice to OCIO, ITS, Infrastructure Operations
Division (IOD), Telecommunications Operations Branch (TOB).
ADB Architecture Definition
ADP Automated Data Processing
ANSI American National Standards
EIA Electronics Industry
FIPS Federal Information
FTR Federal Telecommunications
GWAC General Services Administration
Wiring and Cabling Contract
IDD Infrastructure Definition
IOD Infrastructure Operations
ITS International Technology
LWV Local Area Network (LAN)/Wide
Area Network (WAN)/Voice
NCS National Communications
SCA Service Center Agencies
TIA Telecommunications Industry
TOB Telecommunications Operation