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Installation Issues for Converged AV/IT Systems

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Presentation from the Almo Pro A/V E4 AV Tour taught by Andre LeJeune, CTS for InfoComm International

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Installation Issues for Converged AV/IT Systems

  1. 1. 1 © 2015 InfoComm International® Installation Issues for Converged AV/IT Systems Andre LeJeune, CTS © 2015 InfoComm International® About InfoComm Academy® • Extensive offering of audiovisual courses designed by experts and taught by AV professionals • Delivered
  2. 2. 2 © 2015 InfoComm International® www.infocomm.org © 2015 InfoComm International® Working with IT Professionals • Specific means of documentation • International standards (EIA, TIA, ISO, ITC, etc.) • Industry standard construction methods: – BICSI • Conservative new technology adoption • Content is mostly information; desktops • Only one or two cabling types
  3. 3. 3 © 2015 InfoComm International® Working with AV Professionals • Non-standard documentation • Lack of standards • Proprietary techniques • Constant new technology adoption • Content is multimedia, large rooms • Many cabling types © 2015 InfoComm International® What IT People Care About • Smooth operations – no downtime • Unified “build” of computers • Security of network • Scheduled backups • Help Desk operations
  4. 4. 4 © 2015 InfoComm International® Audiovisual and Network Signals • Audio: microphone, line, loudspeaker • Video: composite NTSC, PAL, SECAM • TV: Radio Frequency (RF) • HDTV: DVI, HDMI, IEEE 1394 (Firewire) • Broadcast: SDI, AES/EBU • Computer Data: RGBHV (VGA) • Control: Closures, TTL, serial, infrared (IR) • Network: Ethernet • Combinations: Proprietary © 2015 InfoComm International® Traditional Audiovisual/Control Block Diagram 6
  5. 5. 5 © 2015 InfoComm International® What is AV/IT Convergence and Why? • Began with multi-room control • Existing IT infrastructure • Mature digitization technologies • Videoconferencing • Inter-building audiovisual transport • Enterprise management • Consolidation of resources © 2015 InfoComm International® “Hybrid” Audiovisual/Control Block Diagram using Structured Cabling 8 8 88 8 8 8 8 8 8 8 8 6
  6. 6. 6 © 2015 InfoComm International® Where Are We Now with AV/IT? • Traditional audiovisual technology is very mature, very robust – but limited • “Hybrid” AV/IT systems use structured cabling but traditional AV signals • Videoconferencing, streaming media are almost all IT now • High bandwidth networks • Bottlenecks © 2015 InfoComm International® “Converged” AV/IT Block Diagram
  7. 7. 7 © 2015 InfoComm International® AV/IT Project Cooperation and Coordination • Unusual locations for information outlets • Floor and wallboxes, furniture connectivity • Wireless technology policies • Network segregation • IP addresses • Use of structured cabling • Firewalls © 2015 InfoComm International® The IT Domains • IT infrastructure is highly organized in standard formats: – Demarcation room – Data center – Backbone cabling – Information closets – Horizontal cabling – Information outlets
  8. 8. 8 © 2015 InfoComm International® The IT Domains: The Demarcation Room • Secure entry point for voice/data services to building • Sometimes redundant services • Access for service providers: – Voice/data lines (T1, E1, etc.) – Copper trunks – ISP (Internet Service Provider) – Cable television © 2015 InfoComm International® The IT Domains: The Data Center • Secure entry • Environmentally controlled • Organized: equipment racks • Uninterruptible power • Servers, routers, switches • May or may not have operations stations
  9. 9. 9 © 2015 InfoComm International® The IT Domains: Backbone Cabling • Interconnections between telecommunications rooms, equipment rooms, and entrance facilities • Cables • intermediate and main cross-connects • Patch cords or jumpers used for cross- connections • Extensions between buildings in a campus environment. © 2015 InfoComm International® The IT Domains: The IDF • Data Closets (IDF) • Located throughout building • Patch points • Fiber/copper • Switches, routers • Sometimes “video:” CATV, SAT
  10. 10. 10 © 2015 InfoComm International® IDF Installation Example © 2015 InfoComm International® The IT Domains: The Information Outlet • Data jacks • Usually copper cabling, RJ-45 (8-pin modular) connectors • May be Fiber-To-The-Desktop • Mulitple jacks in each outlet, according to the enterprise’s standard • “Flood” the facility
  11. 11. 11 © 2015 InfoComm International® Following Cabling Guidelines • IT professionals prefer to see all cabling comply to their facility standard • Use building cabling or run new cabling? © 2015 InfoComm International® Infrastructure Devices: Table Boxes • Doors/pockets • Pop-up • Flip-up • Custom • Audiovisual • Power • Information outlet
  12. 12. 12 © 2015 InfoComm International® Infrastructure Devices: Structured Cabling • Information Outlets: RJ-45 • Category 5, 5e, 6 • Fiber optic cabling • IDF (Intermediate Data Frame) • MDF (Main Data Frame) • BICSI, RCDD (Building Industry Consulting Service International Inc.) © 2015 InfoComm International® Infrastructure Devices: Electrical Pathways • Tray • Conduit • Ladder rack • Trough • “Wiremold” • Bridal rings • J-Hooks
  13. 13. 13 © 2015 InfoComm International® Example: Hybrid AV / IT Courtroom Audio/Audiovisual System © 2015 InfoComm International® CAT What? • “Category - #” cable and performance standards correspond to bandwidth- carrying capabilities, attenuation, and Near-End Crosstalk (NEXT) of system Standard Freq. Range (MHz) Atten. (dB) NEXT (dB) CAT-5 1-100 100 Kbps 24 27.1 CAT-5E 1-100 1 Gbps 24 30.1 CAT-6 1-250 1 Gbps 21.7 39.3 CAT-7* 1-600 1-10 Gbps 20.8 62.1 *CAT-7 is a proposed standard: new connector
  14. 14. 14 © 2015 InfoComm International® IT Terminations • Punch Blocks • RJ-45 (8-pin modular) Connectors • Fiber Optics – Telephone Type – Data Type We will do the first two….. © 2015 InfoComm International® IT Patch Bays: • Every line must run through a patch bay • Usually equipment racks in an IDF (data closet) and MDF (data center) have a standard number of patch bays and patch points • No “normalled” connections
  15. 15. 15 © 2015 InfoComm International® UTP Wiremap • Two main termination standards – T568A – T568B • Verify which standard your client is using for the enterprise! Gn/wht, Gn, Orng/wht, Blue, Blue/wht, Orng, Brn/wht, Brn Orng/wht, Orng, Grn/wht, Blue, Blue/wht, Grn, Brn/wht, Brn © 2015 InfoComm International® UTP Pinout • Straight-through • Crossover
  16. 16. 16 © 2015 InfoComm International® Testing – Network Cabling Infrastructure – Network Performance © 2015 InfoComm International® Why Infrastructure Testing? – Clients require a “certified” cabling system – Robust infrastructure and network – Network may have problems with streaming media – Network administrator
  17. 17. 17 © 2015 InfoComm International® 4 Levels of Network Testing • Wiremap (correct “pin-out”) – Basic Level: Cables pass signals • Cable Verification – Cabling conforms to basic capability standards • Network Certification – Network cabling conforms to bandwidth standards – Ready to turn on active components • Network Operation – Identification of network components – IP Addresses © 2015 InfoComm International® Network Certification • Cabling verification PLUS: • Performance and Speed Verification: – Signal speed carrying specifications to 1 gigabit – Interconnect specifications – Quality of the signal – Real-time testing of cable capability – Measurement of signal quality
  18. 18. 18 © 2015 InfoComm International® Installation Issues • CAT# cable maximum pull force 25 lbs. • Do not crush cable in any way: – Velcro cable ties • Minimum bend radius 1” (25 mm) • Conform to conduit/material codes • Conform to building standards • Alien crosstalk (AXT) • Proximity to power sources © 2015 InfoComm International® Bandwidth and the Network • Bandwidth is a range of frequencies that passes through a system • “Speed” of the network • “Size of the pipe”
  19. 19. 19 © 2015 InfoComm International® Performance PASS/FAIL • Testers are programmed with performance parameters and indicate PASS or FAIL • Tester must be told what type of cable is being used © 2015 InfoComm International®
  20. 20. 20 © 2015 InfoComm International® www.infocomm.org +1 703.273.7200

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