Attachment- 42 08 Telecom Narrative.pdf

VA PROJECT NUMBER

PROJECT NAME

549A-21-700 (2216) EHRM Infrastructure Upgrades - Bonham, TX

SUBMITTAL 100% Construction Documents SUBJECT Narrative - Telecommunications

Telecommunications 1

Project Overview and Background

Following is a description of work to be performed for the Data Communications and Structured Cabling systems in this project.

The main areas of work for this project are:

1. Buildings: 1, 2, 3, 4, 8, 9, 10, 11, 12, 24A, 29E, 29W.

2. Demolition of the old Category cabling, associated Outlet Faceplates, Jacks, and Patch

Panels. If the Patch Panel is populated with Category cabling for other critical systems Leave in place or coordinate punch-down to a new patch panel.

3. Installation of UTP cabling (Cat6A) to all areas.

4. TRs: BLDG 1: 2, 15, 17, 18, 162, 222, 417, 515, 113A, 317A. BLDG 2: 206, 304, 404, 100C. BLDG 3: 134A. BLDG 4: 106A. BLDG 8: 104A. BLDG 9: 114F. BLDG 10: 105A.

BLDG 11: 102A. BLDG 24A: 2A101A, 2A108. BLDG 29E: C3112. BLDG 29W: B2110.

5. SR/MCR/DC: BLDG 1: 514

6. Redundant, Diverse, Internet Service Provider connection.

Design Criteria

OEHRM Site Infrastructure Requirements

TIA-568, 569, 942.

Description of work to be performed in each TR room

General

1. Contractor shall ensure network connections remain active an all existing equipment.

2. Contractor shall install Network channel racks (Ortronics MM20s, White, or Equivalent)

(7’H x 23.75”W x 30”D) with 6” wide vertical cable managers mounted to the front, on both left and right side of every rack, as displayed on plans. OR install Telecommunications Enclosure (48”H x 24”W x 30”D) as displayed on plans.

3. Contractor shall install (1) New, Angled, 144 Fiber Optic Termination Panel, 1RU, primary rack in each TR or TE.

4. Contractor shall install new UTP Patch Panel. 48 position, Angled, one Rack Unit (RU) high per panel, with rear cable manager.

5. Contractor shall terminate all new CAT6A cables on 6A component-compliant 8P8C Media interface Connectors.

6. Contractor shall Install CAT6A from TR to locations depicted on T-100 plans.

Coordinate this with AHJ and verify if phasing or night work is required for every TR.

7. Contractor shall verify existing or Install new cable pathway, wire-mesh (wire basket) cable tray – 18”W x 4”D, in hallway above drop ceiling. Install J-hooks where cable tray is inappropriate.

8. Contractor shall coordinate cutover in each TR with ONIT/AHJ.

9. Contractor shall demolish all existing Category cabling and associated hardware in all locations from WAO back to associated TR, after cutover. Do not leave demolished category cabling in walls or ceiling areas, remove it completely.

549A-21-700 (2216) EHRM Infrastructure Upgrades - Bonham, TX

Telecommunications 2

Typical Telecommunications Room.

1. TRs: BLDG 1: 2, 15, 17, 18, 162, 222, 417, 515, 113A, 317A. BLDG 2: 206, 304, 404, 100C. BLDG 3: 134A. BLDG 4: 106A. BLDG 8: 104A. BLDG 9: 114F. BLDG 10: 105A.

BLDG 11: 102A. BLDG 24A: 2A101A, 2A108. BLDG 29E: C3112. BLDG 29W: B2110.

2. Move existing racks while maintaining network connection activity.

3. Provide and install 4 post channel racks or TE. Number of Racks or TE will be noted on plans.

4. Provide and Install new UTP Patch Panel(s).

5. Provide and install new fire-rated sleeves from the TR room out to the corridor ceiling area for all new cabling. Provide and install new fire-rated sleeves in all fire-rated walls along the cable pathways.

6. Install new CAT6A UTP from TRs to associated area. Coordinate TR service area location with AHJ.

7. Label and test all installed cables according to Div 27 Specs.

8. DO NOT disturb UTP cabling for specialty systems served by TRs (e.g. Wireless

Network cabling and television cabling).

9. Completely remove old UTP, Cat6/Cat5e, from all areas. Remove old UTP cabling from

WAO(s) to originating TR Rack.

Description of work to be performed SR/MCR/DC

General

1. Contractor shall coordinate all work with ONIT for execution and phasing for all work to be done in SR/MCR/DC.

2. Contractor shall move existing server and cabling racks without interrupting network connection.

3. Contractor shall install Network channel racks and Server Cabinets as displayed on plans T-302.

4. Horizontal Cabling will be collocated within the MDA-B Racks, Contractor shall install new UTP Patch Panel. 48 position, Angled, one Rack Unit (RU) high per panel, with rear cable manager.

5. In MDA, Contractor shall terminate all new CAT6A cables on 6A component-compliant 8P8C media interface connectors mounted in 1RU, angled, high density modular patch panels.

6. In MCR, Contractor shall install CAT6A from MDA-B to WAO locations BLDG 1 LVL 5.

Coordinate this with AHJ.

7. Verify existing or Install new cable pathway in SR/MCR/DC and in hallways above drop ceiling, wire-mesh (wire basket) cable tray – 18”W x 4”D, in SR/MCR/DC. Install J-hooks where cable tray is inappropriate.

8. Contractor shall demolish all existing Category cabling and associated hardware in all locations from WAO back to associated MDA racks, after cutover. Do not leave demolished category cabling in walls or ceiling areas, remove it completely.

549A-21-700 (2216) EHRM Infrastructure Upgrades - Bonham, TX

Telecommunications 3

Server Room / Main Computer Room / Data Center.

1. SR/MCR/DC: BLDG 1: 514.

2. Move/reconfigure existing racks while maintaining network connection activity.

3. Provide and install Server channel racks. Number and location of Racks will be noted on plans.

4. Provide and Install new UTP Patch Panel(s) in MDA racks identified on Plans T-302 only.

5. Provide and install new fire-rated sleeves from the SR/MCR/DC out to the corridor ceiling area for all new cabling.

6. Install new CAT6A UTP from SR/MCR/DC (MDA Racks identified on Plans, T-302) to

Work Area Outlets. Coordinate Horizontal Cabling location with AHJ.

7. Install Wire-mesh basket tray above Server Racks ad depicted on plans (4”H x 12”W)

8. Label and test all installed cables according to Div 27 Specs.

9. DO NOT disturb UTP cabling for specialty systems. (e.g. Wireless Network cabling and television cabling).

10. Completely remove old/abandoned UTP cabling, Cat6/Cat5e.

MCR Internal Structured Cabling (Server Rack Cabling/Cross-Connects)

The MCR-internal structured cabling system shall use a redundant, diversely-routed end-of-row (EOR) HDA distribution model supported by redundant MDAs where the main cross-connect is located as defined by ANSI/TIA 942-B specifications.

All elements of the data center structured cabling system shall be located in the data center installed in overhead cable tray systems. Both HDAs, which serve as the distribution point for horizontal cabling and houses horizontal cross-connects and equipment for connecting to the equipment distribution area and the MDA, should be located adjacent to switching components within the rack to minimize patch cord length and cable management requirements.

All IT equipment will be supported from the HDA elements using the structured cabling system.

All networking equipment will be located in the network channel racks and all server/storage equipment will be located in the server cabinets provided in these designs. NSCs using a server cabinet shall follow a modified structured cabling environment appropriate to the specific requirements of the environment.

The use of top-of-rack (TOR) switches and similar networking equipment within server cabinets is prohibited.

The use of pre-terminated structured cabling elements is required in the data center.

Specification of data center structured cabling (both copper and fiber) requires calculation of total length of the link pathway in all dimensions (orthogonally) from dimensionally accurate plans. Procure structured cabling elements to not exceed 6 ft/2 m at each end from the calculated length to avoid coiling of excess cabling.

549A-21-700 (2216) EHRM Infrastructure Upgrades - Bonham, TX

Telecommunications 4

Media and patch panel quantities for the computer room structured cabling system are based on the Standard Density server cabinet. Equipment Distributors in standard density server cabinets support A/B redundant cabling with each side consisting of a minimum of 12 duplex LC (two 12-strand MPO cables) and a minimum of 24 UTP cables. Upstream requirements in HDAs and MDAs are based on the quantity of server cabinets in the data center’s master plan.

549A-21-700 (2216) EHRM Infrastructure Upgrades - Bonham, TX

Telecommunications 5

Description of work to be performed in Building one, Vertical Pathway ‘B’

General

1. Contractor shall ensure network connections remain active an all existing equipment.

2. Contractor shall verify existing or Install new cable pathway, wire-mesh (wire basket) cable tray – 18”W x 4”D, in hallway above drop ceiling. Install J-hooks where cable tray is inappropriate.

3. Vertical Pathway ‘B’ located in closet with Fire Hose connections near stairwell in East Corridor.

4. Vertical Pathway spans from above ceiling, 5th floor, to above ceiling in basement.

(1) vertical Conduit Chase for Fiber Backbone serving other buildings, (1) vertical Conduit

Chase for Fiber Backbone serving Building 1. (Could also be used for Service Provider Fiber

Pathway from MCR to Basement (Entrance Facility/Room – EF/ER).

Description of work to be performed Campus Fiber Backbone Replacement

General

1. Contractor shall install two, diverse, continuous fiber optic backbone cables from the

MCR to each TR and Entrance Rooms.

2. Contractor shall install two 24 strand OM4 multimode and 12 strand OS1 singlemode fiber optic cables for pathways less than 400m and entirely following inside plant (ISP) paths.

3. Contractor shall install two 24 strand OS2 singlemode, inside/outside-rated, fiber optic cables for pathways greater than 400m and/or transiting outside plant (OSP) paths.

4. Field splice terminations in splice cassettes are expected on both ends.

5. Contractor shall install new fiber optic cables from MCR to TR, terminate, test, label and cut-over before removing old fiber optic cables.

6. Contractor shall completely remove old fiber optic cabling from TR to MCR after cut-over.

549A-21-700 (2216) EHRM Infrastructure Upgrades - Bonham, TX

Telecommunications 6

Redundant, Diverse, Internet Service Provider connection

1. Civil contractor shall place (4’x4’) vault near property line adjacent to Lynn Street, and

(4’x4’) vault near property line adjacent to E 9th Street. See civil plans.

2. Install 2” conduit, continuous, from Building 1 conduit bank penetration to TR 160.

3. Install 2” conduit, continuous, from Building 29 conduit bank penetration to TR B2107.

4. Install (1) 24 Strand OS2, Outdoor rated, fiber optic backbone cable from DMARC ‘A’ room BLDG 29 TR B2107 to VA owned Vaults near the edge of property. See Telecom site plans T-200.

5. Install (1) 24 Strand OS2, Outdoor rated, fiber optic backbone cable from DMARC ‘B’ room BLDG 1 TR 160 to VA owned Vaults near the edge of property. See Telecom site plans T-200.

6. Provide Fiber splice enclosure with labeling in Vaults.

7. Provide 1 splice enclosure per Vault. Coordinate termination with service provider to splice their fiber onto VA owned fiber. (Contractor may have to provide 2 splice enclosures with cross-connect fiber)

8. Coordinate installation of service provider equipment in DMARC rooms and cross connect to MCR DMARC Fiber optic backbone cables.

Reasoning; Having VA owned fiber near property line allows VA to manage their own connection locations for security and management purposes. Eliminates Service Providers tendency to require DMARC location in basements or floor locations that take up excessive space and potentially reside in flood prone areas.

549A-21-700 (2216) EHRM Infrastructure Upgrades - Bonham, TX

Telecommunications 7

Construction Phasing

This project involves working in and re-configuring mostly occupied and active data closets and spaces. New data cabling will be installed to replace or augment existing locations in possibly occupied areas. In addition, because it is a hospital, most circuits are considered critical and cannot be interrupted at random. Therefore, this work will require careful coordination with both the departments being affected and the hospital IT department.

Because of the critical nature of these data circuits, night work may be required in some instances and extra care will need to be taken so as not to create excessive noise, dust or debris.

The most effective method of achieving this is to completely re-do one section of a floor at a time. This would entail moving personnel currently occupying the area to a temporary “swing” area and then moving them back after their area has been completed.

In each area the work consists of rough installing of the new cable, (unterminated and coiled for future extension to the work station) and terminating the new cable onto the new CAT6A patch panels in the associated TR. The next step is to extend and terminate the new cable at each station and then testing the cable. Once all the cables in the work area have been tested and certified, all the old cable can be demolished all the way back to the TR.

In most cases, work in the data closet can be confined to the TR room itself. Work in these spaces can be performed during regular hours and will only cause minimal disruptions to the area. Small areas outside the data closet can be blocked off to provide a safe working space.

Extreme care must be taken to ensure that no data circuits are disrupted. The contractor will need to be immediately responsive to restore any service interruption due to accidental disconnects/cuts.

In addition, extensive work will likely be performed in main corridor areas, and this will create disruptions to the flow of personnel in and out of those areas. Care will need to be taken to protect personnel and guests from dust, hazardous materials and falling debris. This will probably involve ICRA procedures.