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PRE-SOLICITATION ANNOUNCEMENT JOHN MUIR NATIONAL HISTORIC SITE JOMU Fiber Optic Cable Replacement RFP No. 140P8526Q0053 The National Park Service (NPS), John Muir National Historic Site (JOMU) has a need for installation of a certified structured fiber optic cabling system connecting the JOMU Maintenance Building Intermediate Distribution Frame (IDF) to the JOMU Adobe Building IDF. 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. Work to be Performed The contractor shall provide all parts, materials, labor, supervision, management, transportation, and equipment necessary to perform the work. The contractor shall maintain an adequate workforce to complete the work associated with the contract in a timely manner, within the period of performance. 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: o 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: o Fire-seal penetration o 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: o 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: o Pull Box 7 o 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 i…

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