Conduct cable testing as
described below upon completion of installation. Tests each subsystem, then test fully completed systems. Partial testing is not acceptable, Non Random test 100% only except by prior
written approval from the Architect/Engineer. Paired and Multi-conductor metallic
cables: Perform an-end to end test for continuity, ground fault, shorts, and crossed pairs for each cable pair/conductor.
Cable pair testing shall be done from the work area outlet, through all Connectors, patches, and cross
connects, to the MDF.
Horizontal cable pairs, not cross-connected to the
backbone, shall be tested from the work area outlet to their furthest termination point.
Backbone cable pairs, not cross-connected to
horizontal cables, shall be tested from the MDF to their furthest termination point.
All other cables shall he tested from end-to-end. Testing
shall include all attached "breakout" cables (e.g. Multi-leg hydras), where possible.
For-pair UTP workstation cabling, in addition to the end-to-end test for continuity, ground fault, proper
cross connection shorts, and crossed pairs for each cable pair/connector, test for attention, noise, resistance, and NEXT with injected standard signals. Utilize
automated test equipment (see below) for all 4-pair UTP cable testing to allow for single pass testing of all measured parameters.
Optical Fiber Cable:
After installation of connectors, visually inspect each fiber end-face at 10X magnification. Refinish any fibers
showing visible defects and /or striations in the core area.
Perform End-to-End, bi-directional attenuation (loss)
test for each fiber strand at 850nm and 1300nm wavelenghts. Conduct tests in accordance with EIA/TIA 526-14, Method B and with test instrument manufacturer's printed instructions.
Calculate the total expected link loss based on the number of mated connector pairs, the connector's
published loss per mated pair and the cable's published loss based on distance. Demonstrate that measured the measured link loss does not exceed the calculated link loss by more than 5%.
Strands whose measured attenuation fall outside the
acceptable range shall be subject to further inspection and testing to determine the nature of the fault. At a minimum, an OTDR shall be used to determine the true
loss for each connector pair, the exact length of the fiber and to identify the presence of any core damage.
Faults related to connectorization shall be corrected. and fiber re-tested as Stated above, until acceptable attenuation measurements are received.
Where defected can not be corrected, replace any cable having fewer than the manufacturers guaranteed
number of serviceable fibers.
Remove all defective cables from the cable pathways.
Do not abandon cables in place.
Prior to testing, submit for review and approval copies
of tests report forms proposed for use.
Each test report form shall contain the following
generalinformation: Date of preparation, date of test, project name, Contractor name, media type, Make, model, and serial number of test equipment used, date of last calibration and names of test crew.
Paired and multi-conductor metallic cable test reports:
as a minimum, also provide: cable number, cable type, pair or conductor count, individual pair or conductor numbers, number of cross connects and/or patches in
each pair, results of each test for each pair conductor, total number of serviceable pairs or conductors in cable.
4-pair UTP cables. Provide test reports created by automated cable tester for each tested cable.
Optical fiber test reports: as minimum. also provide cable number, fiber Count individual fiber numbers, connector types number of connectors/patches,
Calculated maximum link loss, length of run, measured link loss for each fiber.
Recommended Test Equipment:
Optical fiber power meter and Iight source: Siecor CPM-850/1300 meter and OS- 100D Light Source, or Fotec T310 Powersource and meter with FOTEST Reporting Software.
OTDR: Tektronix TFP2 FiberMaster, Laser Precision
TD-2000 or equivalent with 850nm and 1300nm emitter modules and hard copy printout, or equal.
Metallic cable tester: Independent Technologies, Test-All IV or 25, Siemon Company, Multi-test MT-5000
or equivalent.
4 - pair UTP automated cable tester: Microtest
Penta-scanners with Mirotest and Cable Management System (CMS) Software, and/or Siemons L5 tester will be used.
Optical fiber inspection scope: Cambridge Instruments 10X fiber scope or equivalent.
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