Site Survey Form Generic Format - Coastal Environmental Systems

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SITE SURVEY REPORT – location name10. COMMUNICATIONS AND POWER DIAGRAMInsert Comm and Power Diagram from Visio here. The following is an exampleAirfieldLightingVaultBldg 507RLIMPower DemarcPower Demarc120 VAC 30 A 120 VAC 30 A120 VAC2 strandsSingle ModeFiberPrimarySensor Group27 ApproachDiscontinuitySensor Group09 ApproachComm DemarcComm Demarc2 strands SingleMode Fiber2 strands SingleMode FiberDCOBase-Provided 66 Punch Down BlockCross-connectContractor-Provided 66 Punch Down Block120 VACTDAU6 cable ft120 VACPrinterN-TFS45 cable ftLAN20 cable ft120 VACOIDCAT540 cable ftWeather OfficeBldg. 511, Rm 107DCOCAT 5 CableUp to 8 Cu PrDial-in VoiceBroadcast SystemOID120 VACMetnavBldg 511Site Survey Form Generic Format 6-25-13.docPage 17© 2013 Coastal Environmental Systems, Inc.
SITE SURVEY REPORT – location name11. COMMUNICATIONS TESTING REQUIREMENTSCopper Line DriversComplete circuit testing (versus segment testing) needs to be performed to ensure that copperline quality and lengths will allow the AWOS to function as designed. The Decibel Loss Test is thepreferred method. If this cannot be performed, then the Resistance Test is acceptable.Test results falling in the acceptable range will provide a high degree of confidence that thecommunications lines will support a successful installation of the system. All tests have beendesigned to be practical and to require only common test equipment.All tests on the physical communication lines will be carried out from end-to-end (DPUdemarcation to FDCU, RLIM, or Workstation demarcation) after necessary bridging is completed atintermediate locations (DCO, pedestals, etc). Inspection at all junction points and permanentremoval of any ancillary communications lines (a.k.a. “bridge taps”) will be required.Decibel Loss Test (Preferred)Measure the signal loss level (in decibels; dB) for each pair, using a test set capable ofgenerating and measuring a 10kHz and 20kHz signal. Take measurements on individual pairsfrom the location where the equipment (FDCU, RLIM, or Workstation) will be located and thelocation where the DPU will reside. Use a 10kHz signal (+/-1kHz) for FDCU or RLIM lines. Use20kHz signal (+/-1kHz) for Workstation lines.Report the test results in the format shown below. Verify that the loss does not exceed themaximum indicated.Decibel Loss Test ResultsRevise Table as requiredTest PointsMax dBLossActual dBLossDiscontinuity FDCU 14L to DPU < 32 dBDiscontinuity FDCU 32R to DPU < 32 dBRLIM Bldg. xxxx to DPU< 32 dBPass/FailSite Survey Form Generic Format 6-25-13.docPage 18© 2013 Coastal Environmental Systems, Inc.
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Site Survey Form Generic Format - Coastal Environmental Systems

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