1、 MIL-PRF-85045/29A 14 May 2009 SUPERSEDING MIL-PRF-85045/29 27 March 2007 PERFORMANCE SPECIFICATION SHEET CABLE, FIBER OPTIC, TWELVE/EIGHTEEN FIBER BUNDLE, BLOWN OPTICAL FIBER CABLE CONFIGURATION TYPE 3 (CABLE BUNDLE), APPLICATION B (SHIPBOARD), CABLE CLASS SM AND MM, (METRIC) This specification is
2、approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-PRF-85045. CLASSIFICATION: Fiber optic cable configuration type (cable bundle): 3. Fiber cable class: MM (grade
3、d-index, glass core and glass cladding, multimode) SM (dispersion-unshifted, glass core and glass cladding, single mode). FIGURE 1. Blown optical fiber bundle cable. AMSC N/A FSC 6015 METRIC Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-850
4、45/29A 2 Part or Identifying Number (PIN): 12-fiber bundle cable (multimode): M85045/29-0112 18-fiber bundle cable (multimode): M85045/29-0118 12-fiber bundle cable (single mode): M85045/29-0212 18-fiber bundle cable (single mode): M85045/29-0218 DESIGN AND CONSTRUCTION: Fiber: Type MM fibers shall
5、be in accordance with MIL-PRF-49291/6. Type SM fibers shall be in accordance with MIL-PRF-49291/7. Buffer diameter: 250 15 m. Finished cable: Dimensions and configuration: See figure 1. An outer jacket shall be applied over three optical fiber bundle sub-units with rip cords in each sub-unit. OFCC k
6、ink: Not applicable. Color: Slate or blue (MIL-PRF-49291/6 fiber). Yellow (MIL-PRF-49291/7 fiber). Concentricity: Applicable with the following modification. The concentricity shall be measured by first locating the areas where the binder/inner jacket is nearest the jacket outside diameter. From the
7、se measurements the minimum and the maximum wall thicknesses will be selected and used to calculate concentricity. The ratio of the minimum wall thickness to the maximum wall thickness shall be 0.50. Jacket material: The overall jacket shall be composed of a low halogen, low toxicity polymer materia
8、l. Mass per unit length: 6 kg/km. Short-term minimum bend diameter: 76 mm. (The short term minimum bend diameter is to be used in all environmental and mechanical tests that specify a cable minimum bend diameter.) Long term minimum bend diameter: 76 mm. Minimum continuous length: The minimum continu
9、ous length of all cables shall be not less than 0.5 km. If lengths less than 0.5 km are specified in the purchase order, the delivered cable shall be accompanied by certified test data demonstrating that the conformance inspection was performed on a test specimen not less than 0.5 km in length. Prov
10、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-85045/29A 3 Marking: Marking of blown optical fiber bundles is not required. Shipping containers and bundle reels shall be marked. Fiber color coding: See table I. TABLE I. Fiber color coding. Sub-u
11、nit number Position number Fiber color 12-fiber bundle 18-fiber bundle 1 1 Blue Blue 2 Orange Orange 3 N/A - ripcord Green 4 Green Brown 5 Brown Slate 6 N/A - ripcord N/A - ripcord 7 N/A - ripcord Red 2 1 Slate Blue 2 White Orange 3 N/A - ripcord Green 4 Red Brown 5 Black Slate 6 N/A - ripcord N/A -
12、 ripcord 7 N/A - ripcord Violet 3 1 Yellow Blue 2 Violet Orange 3 N/A - ripcord Green 4 Pink Brown 5 Aqua Slate 6 N/A - ripcord N/A - ripcord 7 N/A - ripcord Yellow NOTE: PINs M85045/29-0112 and M85045/29-0212 only contain 4 fibers in each sub-unit. PERFORMANCE REQUIREMENTS: Optical properties: Maxi
13、mum attenuation rate: 3.75 dB/km at 850 20 nm, 1.25 dB/km at 1,300 20 nm for type MM fiber. 0.75 dB/km at 1,310 20 nm and 1,550 20 nm for type SM fiber. Bandwidth: Fiber with a minimum bandwidth of 500 MHz-km at 1,300 nm shall be used (multimode cables only). Bandwidth is not specified at 850 nm. Ch
14、ange in optical transmittance: Measurements to be made at 1,300 20 nm. For shock testing only four fibers are required to be monitored. (At least one fiber per sub-unit.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-85045/29A 4 Crosstalk:
15、Applicable. Mechanical properties: Tensile loading and elongation: Not applicable. Operating tensile loading: Not applicable. Dynamic bend: Not applicable. Low temperature flexibility: Not applicable. Cyclic flexing: 500 cycles at +25oC 2oC and 100 cycles at 28oC 2oC. Minimum load shall be 1.0 kg. C
16、hange in optical transmittance measurements are to be made every 100 cycles for the 500-cycle exposure and every 25 cycles for the 100-cycle exposure. Each change in optical transmittance measurement shall be performed with the test specimen in the same position in the test cycle. The cycling may be
17、 halted to perform the change in optical transmittance measurement. At low temperature, splitting, cracking or crazing of bundle jacket may be permitted so long as there is no splitting, cracking, or crazing of inner jacket. Crush: Not applicable. Cable twist bending: Not applicable. Impact: Not app
18、licable Corner bend: Not applicable. Dripping: Applicable. Cable jacket tear strength: Applicable, except the cable jacket tear strength shall be 5 N/cm minimum. Test shall be performed on test samples in shear orientation. Cable scraping resistance: Not applicable. Cable to cable abrasion: Not appl
19、icable. Durability of marking: Not applicable. Environmental properties: Temperature range: Operating: -28oC to +65oC. Nonoperating: -40oC to +70oC. Storage: -40oC to +70oC. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-85045/29A 5 Temperat
20、ure cycling: Change in optical transmittance measurements may be made periodically. At a minimum, one optical transmittance measurement shall be made over a period of one hour at the end of each temperature plateau. Temperature humidity cycling: Change in optical transmittance measurements may be ma
21、de periodically. At a minimum, one optical transmittance measurement shall be made at the end of each temperature plateau. Storage temperature: Applicable. Fluid immersion: Not applicable. Flame extinguishing: Applicable with the following modification. Testing shall be performed in the following co
22、nfiguration: A MIL-PRF-85045/26 cable that contains the lowest fiber count bundle pursuing qualification. The tube ends shall be plugged with a non-flammable sealant to simulate end caps. Smoke generation and flame propagation: Applicable with the following modification: The pass/fail criteria shall
23、 be as follows: The peak optical density and the average optical density of smoke produced shall be not greater than 1.2 and 0.25 respectively. In addition, the flame spread-time product at the 10-minute point shall be not greater than 27.5 meters-minutes when calculated in accordance with ASTM-E-84
24、. Testing shall be performed in the following sample configuration: A MIL-PRF-85045/26 cable containing one fiber bundle of configuration with the lowest fiber count bundle pursuing qualification. Tube ends shall be plugged with a non-flammable sealant to simulate end caps. Shock: Applicable. The bu
25、ndle shall be tested within a tube cable. Paint susceptibility: Not applicable. Chemical properties: Acid gas generation: Gas generation shall be not greater than 5.0 percent of the weight of the sample Halogen content: 0.2 percent. Provided by IHSNot for ResaleNo reproduction or networking permitte
26、d without license from IHS-,-,-MIL-PRF-85045/29A 6 Qualification by similarity: Manufacturers who produce products for both MIL-PRF-85045/27 and products for this specification sheet, and are qualified under MIL-PRF-85045/27, and pass the attenuation rate, cyclic flexing, and size inspection specifi
27、ed herein, are qualified under this specification sheet. This qualification by similarity is applicable only if the 6-fiber bundle sub-unit and the bundle cable jacket for the unqualified bundle cable are the same as those for the previously qualified bundle cable. Testing may be performed on a sing
28、le length of cable, with a minimum length of 0.5 km. Manufacturers who are qualified under this specification sheet for the 18-fiber bundle cable and whose 12-fiber bundle cable passes the visual and mechanical inspections and temperature humidity cycling specified herein, are qualified under this s
29、pecification sheet for the 12-fiber bundle cable. This qualification by similarity is applicable only if the fiber bundle sub-unit and the bundle cable jacket for the unqualified 12-fiber bundle cable are the same as those for the previously qualified 18-fiber bundle cable. This qualification by sim
30、ilarity is applicable if the only difference between the previously qualified cable and the cable under test is that the fiber count has been changed from 18 fibers to 12 fibers. Testing may be performed on a single length of cable, with a minimum length of 0.5 km. Manufacturers who are qualified un
31、der this specification sheet for multimode fiber cable and whose single mode fiber cable passes the visual and mechanical, attenuation rate, temperature cycling, temperature humidity cycling, storage temperature, cyclic flexing, and thermal shock inspections specified herein, are qualified under thi
32、s specification sheet for single mode fiber cable. This qualification by similarity is applicable if the only difference between the previously qualified cable and the cable under test is that the optical fiber has been changed from a multimode fiber to a single mode fiber. Testing may be performed
33、on either one or two lengths of cable, each with a minimum length of 0.5 km. Test order must be observed up to and including the storage temperature test. If only one cable length is used, the thermal shock test shall be performed after the storage temperature test. Manufacturers who are qualified u
34、nder MIL-PRF-85045/27 for both multimode and single mode fiber cable and under this specification sheet for multimode fiber cable are qualified under this specification sheet for single mode fiber cable. Referenced documents. In addition to MIL-PRF-85045, this document references the following: MIL-
35、PRF-49291/6 MIL-PRF-85045/27 MIL-PRF-49291/7 ASTM-E-84 MIL-PRF-85045/26 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-85045/29A 7 The margins of this specification sheet are marked with vertical lines to indicate where changes from the prev
36、ious issue were made. This is done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of the document based on the entire contents irrespective of the marginal notation a
37、nd relationship to the last previous issue. Custodians: Preparing activity: Navy - SH DLA CC Air Force - 99 DLA - CC (Project 6015-2009-001) NOTE: The activities listed above were interested in this document on the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
