Best Practices and General Troubleshooting Practices and General... · BEST PRACTICES AND GENERAL TROUBLESHOOTING…

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  • BEST PRACTICES

    AND GENERAL

    TROUBLESHOOTING

    PROCEDURES

    Revision 2018-1.03

    This Document Is Intended To Be Viewed In PDF Format

    Engineered, Built and Supported in the U.S.A.

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  • 2015 - 2018 Valcom, Inc. Roanoke, VA www.Valcom.com Check for Updates - https://goo.gl/9derTn Page 1

    Installing the best equipment using known best practices does

    not cost, it pays

    When qualified integrators follow best practices, most installations of Valcom

    equipment go flawlessly. However, occasionally things dont go according to

    plan. After reviewing this document and employing some of the

    troubleshooting techniques, if you have not reached a satisfactory

    conclusion to the issue at hand, then give us a call at 1-540-563-20001.

    This document is an ongoing effort with contributions from many. Content is

    added and edited quite often.

    Technology is always evolving. We learn, and share, new troubleshooting

    techniques all the time.

    Are you new to public address system design? Start here.

    We strongly encourage you to check for document updates often by

    following the update link found in the footer.

    This PDF contains embedded hyperlinks to additional detailed information,

    click on hyperlinked text or graphics to view this information.

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    Table of Contents Entries are Clickable in Downloaded Document

    YOU ONLY GET PAID FOR A JOB ONCE ................................................................................................................... 6

    A SUCCESSFUL JOB STARTS AT THE SITE SURVEY. ................................................................................................ 7

    BEST PRACTICES ..................................................................................................................................................... 8

    REUSING EXISTING INFRASTRUCTURE ............................................................................................................................... 19

    VIP-102B IP SOLUTIONS SETUP TOOL BEST PRACTICES ...................................................................................................... 21

    VIP-102B Tool General Best Practices ................................................................................................................ 21

    VIP-102B Tool Network Scanning & Setup Best Practices .................................................................................. 24

    VIP-102B Tool Dial Codes and Conflicts Best Practices ...................................................................................... 26

    VIP-102B Tool Setup Best Practices .................................................................................................................... 27

    Managing Audio Groups .................................................................................................................................... 29

    Managing Multi-Facility VoIP Installations ........................................................................................................ 31

    Swapping Programming Between 2 Endpoints .................................................................................................. 33

    DOCUMENTING THE SITE ............................................................................................................................................... 45

    JOBSITE INSTALLATION CHECKLIST ....................................................................................................................... 46

    THE MORE YOU KNOW ........................................................................................................................................ 47

    WIRING FACTS AND MYTHS ........................................................................................................................................... 47

    DECIBELS AND SOUND PRESSURE .................................................................................................................................... 49

    CEILING SPEAKER SPACING ............................................................................................................................................ 52

    AMPLIFIER/POWER FACTS AND MYTHS ............................................................................................................................ 54

    TRANSFORMERS- THE GOOD, THE BAD AND THE UGLY .......................................................................................................... 57

    NETWORKING FACTS AND MYTHS ................................................................................................................................... 58

    KNOW YOUR PORTS ..................................................................................................................................................... 59

    SIGNAL ATTENUATORS .................................................................................................................................................. 60

    IP ADDRESSES, NETMASKS, SUBNET MASKS AND NETWORK CLASS ....................................................................................... 62

    USE LOG FILES AS A TOOL .............................................................................................................................................. 68

    ADVANTAGES OF UNSHIELDED TWISTED PAIR CABLE .......................................................................................................... 68

    SERIES AND PARALLEL SPEAKER CALCULATIONS .................................................................................................................. 69

    NEGATIVE VOLTAGE ..................................................................................................................................................... 71

    VOLTAGE DROP/SIGNAL LOSS ........................................................................................................................................ 72

    ELECTRIC FIELDS AND FORCES ......................................................................................................................................... 73

    TIPS FOR SUCCESSFUL SYSTEM DEPLOYMENT ...................................................................................................................... 74

    VOLTAGE SURGE AND LIGHTNING PROTECTION .................................................................................................................. 76

    TROUBLESHOOTING GENERAL APPROACH ........................................................................................................ 77

    DIVIDE AND CONQUER .................................................................................................................................................. 77

    REMOVE VARIABLES ..................................................................................................................................................... 79

    STEP AWAY ................................................................................................................................................................ 81

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    CHECK FOR YOURSELF ................................................................................................................................................... 82

    START OVER ................................................................................................................................................................ 82

    KNOW YOUR SCOPE OF WORK ....................................................................................................................................... 82

    MAINTAINING AN UNDOCUMENTED SITE.......................................................................................................................... 84

    TEST TOOLS AND RESOURCES YOU WILL NEED .................................................................................................... 85

    Current Product Manuals ................................................................................................................................... 85

    Linemans handset ............................................................................................................................................. 85

    Toner .................................................................................................................................................................. 87

    Volt Ohm Meter ................................................................................................................................................. 87

    PoE Load Meter .................................................................................................................................................. 87

    Impedance Meter (Goldline) .............................................................................................................................. 87

    Non-Configured Multiport PoE or PoE+ switch .................................................................................................. 88

    Network Tap ....................................................................................................................................................... 89

    2-way Radios ...................................................................................................................................................... 89

    Long Range cordless phones .............................................................................................................................. 89

    1:1 Audio Isolation Transformers ....................................................................................................................... 89

    Ground Lift Plugs ................................................................................................................................................ 89

    A Non-Blocked Laptop PC ................................................................................................................................... 89

    Useful Software Utilities ..................................................................................................................................... 90

    Wireshark Decode Filters ................................................................................................................................... 90

    A Hotspot ........................................................................................................................................................... 90

    A Cellphone ........................................................................................................................................................ 90

    A Labeler and Permanent Marker ...................................................................................................................... 90

    RJ45 and RJ11 Inline Couplers ............................................................................................................................ 90

    A Sound Level Meter .......................................................................................................................................... 90

    Digit Grabber ...................................................................................................................................................... 91

    Your Eyes and Ears ............................................................................................................................................. 91

    PREPARING THE SITE FOR TROUBLESHOOTING .................................................................................................... 92

    HOW TO TEST BASIC FUNCTIONALITY .................................................................................................................. 93

    IP SPEAKERS AND HORNS .............................................................................................................................................. 93

    SELF-AMPLIFIED SPEAKERS AND HORNS ........................................................................................................................... 93

    45 OHM TALKBACK SPEAKERS AND HORNS ....................................................................................................................... 94

    FXS GATEWAYS USED AS AN INPUT TO AN IP SYSTEM .......................................................................................................... 94

    FXS GATEWAYS USED AS AN OUTPUT TO POTS TELEPHONES OR EQUIVALENT .......................................................................... 95

    FXO GATEWAYS USED AS AN INPUT TO AN IP SYSTEM ......................................................................................................... 95

    FXO GATEWAYS USED AS AN OUTPUT TO ANOTHER SYSTEMS TIP AND RING ............................................................................ 96

    AUDIO GATEWAY CHANNELS USED AS AN OUTPUT .............................................................................................................. 97

    AUDIO GATEWAY CHANNELS USED AS AN INPUT ................................................................................................................. 98

    APPLICATION SERVERS ................................................................................................................................................ 100

    TELEPHONE PAGING SERVERS ....................................................................................................................................... 100

    ELAUNCH SERVER ...................................................................................................................................................... 101

    THE CAP DEBUGGER TOOL .......................................................................................................................................... 101

    RELAY OUTPUTS ........................................................................................................................................................ 104

    SWITCH INPUTS ......................................................................................................................................................... 105

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