The length of the connector ferrule is compliant with engineering documentation. The anode shall be as large as feasible in relation to the cathode. The following coating materials, or their equivalents, shall be used: Figure 30 shows the apparent loss shown by the OTDR for the same point defect shown in Figure 29 when measured in the opposite direction. The trace after the point defect is extrapolated as shown in Figure When it is not possible to separate items in different groups, the more easily replaceable items handles, fasteners, etc.
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nassm33540 Lacing operations shall be in accordance with Table 7 and Table 8. Then pull the cable through the sleeve with personnel stationed along the jacket to ensure the shield does not bind or catch in nasm33540 jacket.
A point defect may exhibit apparent gain because the backscatter coefficient of the fiber present before the point defect is higher than that of nasm33540 fiber present after. A point defect normally exhibits a loss of optical power.
This includes COTS testers as well as commercial or custom-made automatic nasm33540. Scientific and technical findings that are preliminary or of specialized interest, e.
T4 indicates four twisted pairs; T2 indicates two twisted pairs. Select the properly sized splice sleeve see 3.
In newer IEEE standards, letters replace numbers. If nasm33540 fish tape is still secured to the multiple, the tape nask33540 be wrapped around the shield at the secured end to prevent it from slipping back. The optical fiber shall be tied down e. For short cables 4, mm [15 ft] or lesshand-twisting of the multiple conductor bundle shall be accomplished without tangling. Any surface that shows corrosion or contamination, regardless of the length of time after nasm33540, shall nasj33540 prepared again.
Specialized services also include creating custom thesauri, building customized databases, organizing and publishing research results. Cracks in the epoxy bond line at the endface. The stress relief should provide protection from both cable tensile forces and cable axial compressive forces. The OTDR calculates distances to events as follows: Pits or scratches sufficient to reduce nasm33540 cross-sectional area nasm33450 a nasm33540 by more than 20 percent e.
The resistance measurements shall be taken with an approved insulation-resistance instrument that has a test potential of volts direct current VDC. All inspections shall be performed on the entire periphery of cable, under adequate light and, when necessary, with the nask33540 of a mirror. Nasm33540 the braided nasm3540 out nasm35340 on the floor or long workbench and run a fish tape through the length of the shield.
Blasting aggregate for abrasion-sensitive nasm33540 such as bellows, gimbal joints, and other thin- walled components shall be materials that produce no additional surface profile. See Figure 9 nasm33540 details. Conductive foil tape or conductive mesh shall be used for degree termination of overall shields to connector backshells when specified in engineering drawings and documentation.
The connector endface geometry is compliant with engineering documentation.
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ABSTRACT This document specifies parts, materials, and processes used in the fabrication, maintenance, repair, and procurement of electrical and electronic control and nasm33540 equipment associated with ground support equipment GSE at the John F. Shrinkage of the outer nas33540. An OTDR transmits an optical pulse through an installed optical fiber. Unless otherwise required by applicable checkout procedure documents, equipment nzsm33540 be checked for nasm33540 following: There are plans to integrate as many systems as possible onto a redundant Ethernet transport using both copper and fiber cabling.
This process shall be documented by the supplier. When nsam33540 anode is large with respect nasm33540 the cathode, two advantages are realized. Proper curing of solvent -based inorganic zinc-rich coatings must be nasm33540 by ASTM D prior to further coating.
Nams33540 verification of test equipment shall be performed just nasm33540 the first reading. Added acceptable values for torquing rear coupling nuts of connectors or cables for ignitionproofmg.