OPTICAL FIBER & PIGTAIL
Author：ACT From：ACT Hits：4305 Date：2012/4/23 下午 05:41:39
1. Introduction
1.1 The proposal shall contain complete product description, technical specification & information on the manufacturer of the offered items.
1.2 The supplier shall include diagrams clearly illustrating the proposed equipment, including all dimensions, materials and mechanical characterizing.
1.3 The supplier shall provide all descriptions and results of tests proving conformance to the criteria of this RFP.
1.4 Suppliers that did not supply optical jumpers & assemblies to Bezeq in the last 2 years hall provide a certificate of compliance from Bellcore authorized laboratory or other, approved by Bezeq that the offered products meet the Bellcore documents & requirements mentioned above.
1.5 A sample of the offered items shall be attached to the offer, at least one sample for each type. Items offered without a sample shall be ignored. All tests reports & interferometer data shall be enclosed to the sample.
2. References & specifications
2.1 All items in this specification are Single Mode.
The offered items shall conform to the description and to all requirements (mechanical, optical, environmental etc.) of the following Bellcore specification:
"Generic requirements GR-326-CORE, issue 3 – Generic requirements for single-mode optical connectors and jumpers assemblies".
2.2 The summary of optical performance criteria for Insertion loss and reflectance are in table 4.2 and 4.3 of the Bellcore specifications. The following are the modified specific requirements with respect to the Bellcore specifications:
2.3 The "reflectance" criteria shall be -55dB, According to (CR) criteria.
2.4 Suppliers offering better performance from the minimum required shall be preferred.
3. Fiber specification
3.1 The optical fibers within the jumpers & Pigtail shall meet ITU-T G.657A2.
3.2 the following minimum requirements shall be met:
a. Fiber type: Matched clad, dispersion non-shifted.
b. Cladding diameter: 125±0.7 µm.
c. Core concentricity error: ≤0.5 µm.
d. Cable cut off wavelength: 1260 nm.
e. Proof test: ≤ 0.7 GN/m3
f. Micro bending Loss :
|
Radius (mm)
|
15
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10
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7.5
|
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Number of turns
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10
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1
|
1
|
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Max. at 1550 nm (dB)
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0.03
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0.1
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0.5
|
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Max at 1625 nm (dB)
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0.1
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0.2
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1
|
3.3 Specifications of the proposed fiber shall be attached.
4. Cable specification
4.1 For Simplex jumpers:
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Cable type and No. of fibers
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Simplex, 1 fiber 900 μm ± 50 μm
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Cable diameter
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2.0 mm
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Jacket material
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LSZH
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Jacket color
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Yellow RAL 1021
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Flame retardance
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Per IEC 60332-1
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Table 1
4.2 For Duplex jumpers:
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Cable type and No. of fibers
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ZIP, 2 fibers 900 μm ± 50μm
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Cable dimensions
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2.0 x 4.1 mm
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Jacket material
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HFFR\LSZH
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Jacket color
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Yellow RAL 1021
|
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Flame retardance
|
Per IEC 60332-1
|
Table 2
4.3 The cable shall meet IEC 60974-1-2 standard for the Physical properties as followed:
4.3.1 Simplex cable
· Nominal weight – 4.5 kg/km
· Tensile strength (dynamic) – 120 N
· Tensile strength (permanent) – 60N
· Compressive strength (crush) – 500N
· Impact – 0.5 Nm; R=300 mm
· Torsion - 5 cycles ± 1 turn
· Temperature range for Operation and installation: -20ºC to 60ºC.
· Temperature range for storage: 40ºC to 60ºC.
4.3.2 Duplex ZIP cable:
· Nominal weight - 9.0 kg/km
· Tensile strength (dynamic) – 200 N
· Tensile strength (permanent) – 100N
· Compressive strength (crush) – 500N
· Impact - 1 Nm; R=300 mm
· Torsion - 5 cycles ± 1 turn
· Temperature range for Operation and installation: 20ºC to 60ºC.
· Temperature range for storage: 40ºC to 60ºC.
5. Jumpers specifications
5.1 All jumpers shall be terminated on both sides by connectors.
5.2 The required lengths of the jumpers may vary from 1 Meter up to 40 meters.
5.3 The connector ends shall be identified by plastic markers. The markers shall be designed not to compress the cable. Some movement of the plastic markers along the cable is allowed.
5.4 The patch cords shall Not be crossed – marked as A on one end of an individual fiber and A on the other side.
5.5 The patch cords shall be held together by plastic wrap carefully applied so as not to compress the cable. It is advisable to place the plastic wraps over the connector boots to prevent any damage to the cable.
5.6 Separation of each fiber from the figure 8 shall
Be easy and shall not harm, the fibers.
5.7 The jumpers shall be terminated by FC, SC or LC
Connectors both ends and/or hybrid jumpers between them.
5.8 The connector boot shall be at least 1.5 cm long, and shall be mounted in a way that will not slide on the jumper by pulling it down.(as described in table 3)
5.9 All connectors shall be supplied with mounted dust caps.
5.10 The connector ferrule shall be made of zirconia.
5.11 The FC connector housing shall be metallic. The key shall be same housing with the connector head, and not a separate ring around the connector.
5.12 The connectors shall be of the physical contact, ultra physical contact Polish (UPC).
5.13 All jumpers shall meet the following Technical parameters
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SC Connector
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LC Connector
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FC Connector
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Insertion Loss
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< 0.3 dB
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< 0.3 dB
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< 0.3 dB
|
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Return Loss
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< -55 dB
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< -55 dB
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< -55 dB
|
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Ferrule
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2.5mm zirconia
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1.25mm zirconia
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2.5mm zirconia
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Housing
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Composite
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Composite
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Nickel-brass
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Boot
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≥15 mm
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≥15 mm
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≥15 mm
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Dust-cap
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Yes
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Yes
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Yes
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Table 3
6. Pigtail-bundles specifications
6.1 The fiber type shall be bend-insensitive single mode fiber as described in paragraph 3.
6.2 The pigtail-bundles shall be constructed of colored 900 µm single mode fibers. The bare fibers (125 µm) shall be colored too by the same coloring code. The coloring code is described in appendix 1.
6.3 The connector boot shall be at least 1.5 cm long, and shall be mounted in a way that will not slide on the jumper by pulling it down.
6.4 The maximum outside diameter of the 4, 8 or 12 fibers bundle shall be 5mm.
6.5 The pigtail-bundle length shall be 4 meters. The
Supplier shall price additional 1 meter for longer pigtail-bundles.
6.6 The individual optical fiber pigtail-bundle shall be
Supplied in sets of 4, 8, 12 color coded pigtail-bundle forming a flexible loose cable.
7. Tests & Quality Assurance
7.1 The supplier shall attach at least one interferometer tests on each delivery/order supplied to Bezeq.
7.2 The interferometer tests shall include at least one test of each connector type that is in the delivery/order.
7.3 The interferometer tests shall be sent to Bezeq approval before the delivery to Bezeq warehouse.
7.4 The supplier shall commit to replace every Jumper that will be found as not meeting the requirements mentioned in this document.
7.5 The supplier shall commit to have an emergency stock that will be define by Bezeq and be ready for supply from the emergency stock within two days of work.
8. Packaging & labeling
8.1 Each item shall be packed separately and shall be supplied in packing that will protect them during delivery and storage.
8.2 Each package shall have label with the following
Information:
· Bezeq catalog number
· Product's name
· Date of manufacturing
· Manufacturer's name
· Manufacturer's catalog number
· Batch number
· Loss and reflectance loss in dB.
· No' of Bezeq order.
· Date of order.
8.3 All marking and labeling shall be as described in appendix
APPENDIX 1
Fiber color code table
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FIBER No.
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Color
|
|
1
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Blue
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|
2
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Orange
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3
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Green
|
|
4
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Brown
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5
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Slate
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6
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White
|
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7
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Red
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|
8
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Black
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9
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Yellow
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|
10
|
Violet
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|
11
|
Pink
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|
12
|
Turquoise
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Marking & labeling
See attached file.
APPENDIX 3
Jumpers & Pigtail-bundles types
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simplex
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duplex
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FC-FC (1 meter)
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|
|
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SC-SC (1meter)
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|
|
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LC-LC (1 meter)
|
|
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FC-SC (1 meter)
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|
|
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FC-LC (1 meter)
|
|
|
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SC-LC (1 meter)
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|
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Additional meter
|
|
|
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4 fibers pigtail-bundle FC
|
|
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4 fibers pigtail-bundle SC
|
|
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4 fibers pigtail-bundle LC
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|
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Additional meter
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|
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8 fibers pigtail-bundle FC
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|
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8 fibers pigtail-bundle SC
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|
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8 fibers pigtail-bundle LC
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|
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Additional meter
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|
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12 fibers pigtail-bundle FC
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|
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12 fibers pigtail-bundle SC
|
|
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12 fibers pigtail-bundle LC
|
|
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Additional meter
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