INSTALLATION TESTING REQUIREMENTS ATT-TP-76900 …

1 INSTALLATION TESTING REQUIREMENTSAT&T ATT-TP-76900 March 2016TP Line RefPrior to Technical Practice ChangePost Technical Practice Change[new description] [no change] [no change at this time] [Deleted]11. GENERALNo IntroductionNo This section of ATT-TP-76900 covers INSTALLATION TESTING REQUIREMENTS for transmission Changes in this issue of Section A of ATT-TP-76900 are summarized in Table change22. TEST REQUIREMENTSNo GeneralNo Section A of ATT-TP-76900 shall be used in conjunction with this Section AlarmsNo All alarms shall be tested to ensure proper operation as All alarms shall bring in the proper alarm indications at the local and remote alarm monitoring and surveillance center as specified in ATT Synchronization LeadsNo Continuity tests of all synchronization leads shall be performed between the appropriate timing output of the Building Integrated Timing Supply (BITS) clock to the input timing connection on the equipment Continuity tests of all timing source inputs to a BITS shelf shall be performed.

2 No changea) To the BITS shelf backplane for a Master Shelf (including the synchronization DSX-1 jacks when provided), orNo changeb) Between the BITS Master Shelf timing outputs and the BITS shelf backplane for a Remote Master Continuity tests of all synchronization leads shall be performed from the appropriate timing output of the next generation BITS clock (example: TimeHub 5500 (TH5500)), through its backplane to the end of the associated cabling or termination on a clock wire wrap panel. This can be accomplished using a test (streaker) card. Reference ATT-TP76450 Section Results shall be documented on the Test Record per ATT-TP-76300, Section E , and accepted by the AT&T PowerNo The INSTALLATION supplier shall verify at the equipment backplane that the voltage for all feeds is within manufacturer s specifications for the equipment being A and B battery outputs of the fuse panel or BDFB must correspond to the A and B battery input of the network GroundingNo The INSTALLATION Supplier shall verify that all coaxial cabling and peripherals are grounded in accordance with REQUIREMENTS as defined in ATT-TP-76300, Section H.

3 , TP76416, and TP76403 where changea) All cables shall be inspected to ensure that they are properly bonded and grounded in accordance with applicable standards in the TP76416, TP76403, NFPA 70 and changeb) Grounding conductors will be tested to ensure no current is changec) Grounding and bonding inspection will include tower, mast, antenna, antenna cable ground kit, mast ground plate, roof ring ground, Cadwelds, Hatchplate, Bulkhead, Polyphasers, supplemental grounding conductors, Halo s and associated connections to the building ground and lightning suppression Photographic documentation may be substituted for physical inspection when locations are inaccessible but shall be included in with all job Test RecordsNo Electrical Interface CablingNo The INSTALLATION supplier shall verify continuity on each cable that is terminated at the MDF using a multimeter.

4 Tone generator or approved test equipment before turning the cable over for far end changeTechnical Practice InformationATT-TP-76900 Section TINSTALLATION TESTING REQUIREMENTSAT&T ATT-TP-76900 March The INSTALLATION supplier shall test for IN-OUT reversals on each cable that is terminated at the MDF through the equipment backplane to the point of termination using approved test equipment before turning the cable over for far end The INSTALLATION Supplier shall verify the integrity of interface cabling using a multimeter, tone generator or approved test equipment on cable that is not terminated at the MDF. A minimum of one cable from each bundle shall be The INSTALLATION Supplier shall individually verify the integrity of each coaxial cable back to its termination point (DSX) panel using approved test All interface cabling shall be verified for integrity through the equipment backplane through the point of termination by using the appropriate test signal and observing error free Results shall be documented on the Test Record per ATT-TP-76300, Section E , and accepted by the AT&T Fiber Interface CablingNo changeNote.

5 All Fiber Interface Cabling TESTING REQUIREMENTS can now be found in System DiagnosticsNo Unless the equipment order provides only for INSTALLATION of unequipped shelves, the INSTALLATION supplier shall perform and record the result of all AT&T s specified System Diagnostic Tests to ensure that all systems and subsystems are ready for Operational TestsNo Unless the equipment order provides only for INSTALLATION of unequipped shelves, the INSTALLATION supplier shall conduct AT&T s defined operational tests. These tests shall be performed with the software release that will be resident in the equipment at The system shall not experience any equipment out-of-service, abnormal alarms, or system anomalies for the duration of the All redundant systems and sub-systems shall be tested for proper operation when switching between redundant Equipment Specific Test RequirementsNo The INSTALLATION supplier shall test each channel slot (with the appropriate test card)

6 Of multiplexing/de-multiplexing equipment to ensure proper signaling and continuity of the transmission SoftwareNo The INSTALLATION supplier shall verify that the most current approved software release has been delivered and installed per the AT&T equipment order.[Deleted] The INSTALLATION supplier shall verify that a copy of the most current approved software release has been delivered to the AT&T The INSTALLATION supplier shall verify that a copy of the most current approved software release has been delivered to the AT&T Representative and installed per the AT&T equipment The INSTALLATION supplier shall verify that all documentation specified in the AT&T equipment order relating to the most current approved software release has been delivered to the AT&T The INSTALLATION supplier shall verify that all documentation specified in the AT&T equipment order relating to the most current approved software release has been delivered to the AT&T Coaxial Transmission Cabling

7 From antenna to end equipmentNo Confirm the integrity of all Coaxial cables, connectors, supports (clamps, cable grips) and routing are verified and meet ATT job specifications and manufacturer s specifications and are correctly identified and labeled at both NE and Coaxial cable to be tested shall be inspected to ensure that:No changea) Bend radius is in compliance with TP76300, 76301, changeb) Cables should be tested to confirm absence of hazardous foreign changec) TESTING meters, analyzers, cords and cables should be properly calibrated prior to TESTING coaxial cables according to ATT and manufacturers changed) The following Four step test procedure should be performed and results recorded in Test Record and compared to acceptance criteria or levels:No changeINSTALLATION TESTING REQUIREMENTSAT&T ATT-TP-76900 March 20161.

8 With the far end of the cable unconnected, the DC resistance should be measured between the inner and outer cable conductors. The measurement results should indicate infinite resistance; , an open circuit. The measurement values should be change2. Next, the far end of the cable should be terminated with a matched 50 ohm load, and the cable analyzer connected to the near end to perform frequency sweeps of the cable and measure the return loss [4]. These measurements should be conducted over three frequency ranges: 2-12 MHz, 12-80 MHz and 80-380 MHz. The return loss should be 25 dB or greater over all these frequencies to support the Ceragon 1500P radio family. The measurement values should be recorded. Here VHO Coax cables 75 ohm rated should substitute a 75 ohm load for the 50 and acceptable return losses at the specified frequencies should be obtained from the cable manufacturers published specifications.

9 (These should be included in the YW documents along with the test results for each cable)No change3. Next, a termination that electrically connects the inner and outer conductors together (also known as a shorting plug) should be installed on the far end of the cable. With the far end of the cable shorted, the round-trip DC resistance can be measured from the near end of the cable by connecting an ohm-meter between the center and outer conductors of the cable. The measured round-trip DC resistance should not exceed ohms to support the Ceragon 1500P radio family. The measurement values should be recorded. VHO DC resistance figures shall be obtained from the cable manufacturer s published electrical specifications and included in the Yellow Wallet documentation.

10 Any TESTING documentation that is shipped along with the cable reels should be also be inserted in the YW as an MDR report or may be included in the Test Records change4. With the far end of the cable still shorted, the round-trip cable loss can be measured with the cable analyzer connected to the near end. Measure the round-trip cable loss by sweeping the cable from 320-380 MHz. The measured round-trip cable loss should not exceed 60 dB at 350 MHz.[5] Ceragon specifies that the one-way cable loss should not exceed 30 dB at 350 MHz; , the round-trip loss should be less than 60 changeThe four step validation TESTING should be used as a minimum set of TESTING REQUIREMENTS for validating all coaxial transmission cables installed for use in ATT equipment locations.