B08_Attachment_1_SOW_JOMU_Fiber_Replacement.docx

Scope of Work Fiber Optic Infrastructure Replacement and OTDR Testing Park: National Park Service – John Muir National Historic Site (JOMU) Project Location: 4202 Alhambra Avenue, Martinez, California 94553

1. Project Overview The Contractor shall furnish all labor, materials, equipment, supervision, and technical services necessary to provide installation of a certified structured fiber optic cabling system connecting the JOMU Maintenance Building Intermediate Distribution Frame (IDF) to the JOMU Adobe Building IDF.

All work shall be completed in accordance with applicable industry standards, project drawings, manufacturer requirements, and directions provided by the National Park Service (NPS).

The project consists primarily of demolition of existing fiber infrastructure and installation, termination, testing, and certification of a new single-mode fiber backbone between buildings utilizing existing conduit pathways.

Perform additional OTDR Testing – From Visitor Center to Muir House. Provide labor to perform bi-directional OTDR testing of existing 6-strand single mode fiber cable between Visitor Center and the JOMU Muir House. Testing will verify continuity, attenuation levels, and overall strand usability.

2. Work Locations Work will occur at the following facilities:

· JOMU Maintenance Building IDF

· JOMU Adobe Building IDF

· JOMU Visitor Center

· JOMU Muir House

· Existing underground conduit pathway and associated pull boxes between buildings

3. Scope of Installation

3.1 Maintenance Building IDF Work

Contractor shall:

1. Install one (1) Telecommunications Main Ground Busbar (TMGB) on existing backboard.

2. Bond busbar to building grounding electrode system using #6 AWG grounding conductor.

3. Install one (1) rack-mounted fiber enclosure (1U, two-panel capacity) including:

· One (1) 6-strand OS2 LC connector panel.

4. Install one (1) 2-inch EMT sleeve from IDF cabinet to above adjacent ceiling space including:

· Fire-seal penetration

· Strut supports, clamps, bushings, and firestops.

5. Install one (1) 2-inch EMT compression connector to existing cabinet.

3.2 Adobe Building IDF Work

Contractor shall:

1. Install one (1) fire-rated plywood backboard (¾", 2' × 2'), unpainted.

2. Install one (1) TMGB ground busbar bonded to building grounding system using #6 AWG conductor.

3. Install one (1) rack-mounted fiber enclosure (1U, two-panel capacity) including:

· One (1) 6-strand OS2 LC connector panel.

4. Install one (1) 2-inch EMT sleeve from backboard to ceiling space including fire-sealed penetrations and supports.

5. Install one (1) 2-inch EMT compression connector to cabinet.

3.3 Demolition Work

Contractor shall:

· Remove existing six-strand single-mode fiber cable between buildings.

· Remove two (2) existing fiber splice enclosures located at:

· Pull Box 7

· Pull Box 9

· Salvaged materials shall become property of the Contractor with no salvage value credited to the Owner.

3.4 Conduit and Pathway Preparation

Contractor shall:

1. Rod and rope approximately 1,350 linear feet of existing conduit between buildings.

2. Seal designated 2-inch conduits at pull boxes 5 through 12 using approved fire-seal materials.

3. Utilize existing usable conduit and underground duct systems.

Conduit footage is based on visual inspection and may be adjusted upon verification of actual pathways.

3.5 Fiber Optic Cabling Installation

Contractor shall furnish and install:

· One (1) six-strand OS2 indoor/outdoor OFCP-rated single-mode fiber optic cable between buildings (approximately 1,500 feet).

· Provide 30-foot service loops at both ends.

· Leave pull string installed end-to-end within conduit.

At each termination point, Contractor shall:

· Terminate all fiber strands using LC connectors.

· Install connectors into fiber enclosure panels.

· Bond cable to grounding busbar using #6 AWG conductor.

· Provide machine-generated labeling for cables and enclosures.

3.6 Testing and Certification

Contractor shall:

· Perform bi-directional dual-wavelength testing on all six (6) fiber strands using calibrated test equipment.

· Verify continuity and performance per industry standards.

· Provide electronic copies of all test results.

3.7 Patch Cords

Contractor shall provide and install:

· Two (2) OS2 LC-to-LC duplex fiber patch cords (1 meter each), one at each building IDF.

4. Quality of Work All work shall:

· Be performed by qualified personnel.

· Comply with telecommunications industry standards and trade practices.

· Be completed in a neat and workmanlike manner.

· Be subject to correction if deemed deficient.

5. Schedule

· Standard work hours: Monday through Friday, 8:00 AM – 5:00 PM.

· Construction start: approximately ten (10) days after contract award.

· Period of performance: 30 Days after contract award.

6. Deliverables Upon completion, Contractor shall provide:

1. Electronic copies of all fiber test results.

2. As-built documentation for the installed cable plant.