OFC Laying at Excavation Department Dakra From Project Office Dakra for providing Internet/MPLS

Amount

Supply of OFC Cable type Stranded loose tube Construction type Un-Armored Subunit type Gel-filled (Thixotropic gel) Moisture barrier Flooding gel (Thixotropic gel) Core wrapping Polyester tape Outer sheath (≥1.8 mm) High density polyethylene, anti -termite, anti -rodent suitable for laying through PLB HDPE duct. Number of fibers/ loose tube 4Fiber Strength Fiber Reinforced plastic (FRP)rod Fiber Type Single mode Fiber Core Diameter 9 ±0.4 μm Cladding Diameter 125 ±1μm Coating Diameter 250 ±10 μm Effective Group index of Refraction 1.468 at 1310 nm; 1.468 at 1550 nm Fiber cut off wavelength ≤ 1260 nm Overall diameter ≥ 11 mm and ≤ 16 mm (±0.5 mm) Minimum Bend radius 20 X Outer Diameter Tensile Strength ≥ 2500 N Crush resistance ≥2000 N/10cm Weight ≥120 (±10%) Kg/Km Refractive Index Difference 0.36% Polarization mode –dispersion co-efficient <0.5ps/sqkm @1310 nm & 1510 nm Core clad Concentricity ≤ 0.5 μm

Supply of Optical joint enclosures (Small & Bamboo types) It shall be with high compressive strength, Chemical resistant, High voltage resistant, Suitable for ribbon and non-ribbon fibers, It supports adapter bulkheads and splitters, Reliable and re-usable sealing gasket, Re-enterable with no re-entry kit needed, No special tool required for installation

Supply of Media Converter Auto-Negotiation (802.3u) The media converter supports auto negotiation. The 1000Base-X fiber interface negotiates according to 802.3 clause 37. The 10/100/1000Base-T negotiates according to 802.3 clause 28 and 40. The 1000Base-X will link up with its partner after the highest common denominator (HCD) is reached and the copper has linked up with its partner. The 1000Base-X will continue to cycle through negotiation transmitting a remote fault of offline (provided this is enabled through the switch setting) until the copper is linked up and the HCDs match. The media converter supports auto-negotiation of full duplex, half duplex, remote fault, full duplex pause, asymmetric pause and Auto MDI-X.

Splicing / jointing of Fiber Optical Cables with splice loss of fiber with MFD 9.3um with fiber of range 8.8 ~ 6.9um, Core Clad Concentricity in today's G652 single mode fiber is <0.5um and offset is in opposite directions (total 1um offset), the contributed loss will be 0.056dB including splitter and all accessories for 1 year

Installation, comissioning anmd Testing @ 10 %

Total impact of GST for the purpose of CTC

SWATI KUMARI

DEEPAK RANA