The Riser as a Contract Document. Peter Sharp, RCDD

Transcription

1 The Riser as a Contract Document Peter Sharp, RCDD IBI Group 1 1

2 Who am I? Presenter Credentials Electrical Engineer Specialties in communications, electronics and computer sciences, In practice for 40 years Member of BICSI, RCDD Institute of Engineering and Technology (IET) (UK), and TIA engineering TR42 standards committees Senior Telecommunications Consultant with IBI Group, Member firm of the IBI Group, (HQ in Toronto) Multi-disciplinary engineering gand architectural consulting practice. (3000 persons world wide) Responsibilities include Design and specification of communications, life safety, security and building management systems Systems integration for Data Centers. Major clients include 2 Governments, Nuclear power generation authorities, International border crossing agencies, Chartered banks, Insurance underwriters, and Transit authorities.

3 Why are we here? To think about.. The Riser as a Contract Document Idea What Components of a structured cabling system can be fully described on one schematic riser diagram. CAD drawing Different from current drawing practice and focuses on the cabling, not conduit or pathways. CAD Library of graphic elements described in detail. Examples Illustrate how the symbols are used to define and specify a complete cabling system. Included are the type and pair count of different cables and cable types, termination types, termination locations, cross connections and 3 patch-cords

4 What will we learn? Objectives Context of a construction contract Legal nature of a contract Establish need for clarity and completeness Identify key documents for structured cabling Identify use of LAYOUT PLANS Identify proper use of SPECIFICATIONS Identify use of SCHEMATIC RISER How to prepare a RICH DETAIL FORMAT (RDF) RISER SCHEMATIC 4

5 5 Part 2 CONTRACT DOCUMENTS

6 Context Owner, designer and contractor operate together in a world of contract law Owner + $$ + idea + designer = Contract Documents Contract Documents+ Contractor + materials = work results 6

7 Contract Documents General terms and conditions Technical specifications Drawings 7

8 Purpose and Proper Use of Contract Documents General terms and conditions 8 Establishes relationship between the Contractor and the Owner Details the do s and don ts of the work Sets up contract as Construction Management (CM) or General Contract (GC) CM or GC can affect way Data cabling is subcontracted

9 Purpose and Proper Use of Contract Documents Specifications Legally reinforces what is on the drawings Defines scope of work Defines material components Designer will use specifications to 9 Expand on scope of work Detail desired components Describes special execution of work

10 Purpose and Proper Use of Contract Documents Specification split by description of Work Does NOT separate work by trade Specific areas of interest to this subject 10 Division 26 Electrical rough in Communications pathways; supports cabling Division 27 Communications Structured cabling Division 28 Security/Safety Uses structured cabling

11 Division 27 - Communications General description of work What is included and excluded Look for Provide or Install or Furnish. Definitions of 11 Cable type and performance Connector type and performance Standards for execution/installation Testing and test reporting

12 Correct Use of Drawings - Layouts Communications layout drawings Outside plant shows conduits and site routing Inside plant Outlets positions and jack count Telecommunications rooms Conduit and tray (sometimes) Contractor responsible for 12 Take off - quantity

13 Correct Use of Drawings - Elevations Communications elevation drawings Communications rooms Identifies racking Identifies wall layouts Identifies cable routing 13

14 Correct Use of Drawings - Riser Communications Riser drawings 14 Describes the fixed link Details outside and inside cabling Details connector types Copper Optical fibre Details mounting locations Rack Wall

15 Three Parts to the Contract Documents Layout Describes placement/quantity of outlets Shows pathways Specifications Defines products and designer swants s Riser Describes the cabling infrastructure 15

16 Which Document is the Most Valuable Resource? 16

17 17 Part 3 THE RISER SCHEMATIC

18 Start with TIA 568.C.0 DISTRIBUTOR A (DA) HORIZONTAL CROSS-CONNECT FLOOR DISTRIBUTOR DISTRIBUTOR B (DB) INTERMEDIATE CROSS- CONNECT DISTRIBUTOR C (DC) MAIN CROSS-CONNECT 18

19 Traditional Riser Scheme Simple representation of cross connect Works for copper voice cabling Works for optical fibre Cannot mix cable types Does not show equipment Not good for detailing 19

20 Cross-Connect + Equipment New symbol needed to separate Backbone Equipment Distribution What kind of terminations? IDC? Patch panel? What kind of connections? Cross-connect? Interconnect? 20

21 Traditional + Equipment Drawing becomes crowded No space to add detail Suitable only for one cable type. Better approach needed 21

22 Part 4 DEVELOPING A NEW RISER SCHEMATIC 22

23 23 DISTRIBUTOR A: THE CROSS-CONNECT

24 1. Refine the Symbol Vertical lines become generic termination strips Identify with B Backbone E Equipment D Distribution Cross lines eliminated Horizontal lines represent cables 24

25 2. Show Cabling Back bone cables Distribution cables Indicate outlet jack 25

26 3. Add Cabling Terminations Open symbols represent RJ45 jacks 26

27 4. Add Patch Cords Solid symbols represent RJ45 plugs 27

28 5. Add Fibre Round symbols represent tfibre Open symbol = jack Solid symbol = plug 28

29 So far.. Horizontal copper cable terminated on RJ45 patch panel Backbone copper terminated on RJ45 patch panel Backbone fibre terminated on patch panel Copper patch cords between horizontal and backbone Copper equipment cords between horizontal and equipment Fibre equipment cords between equipment and backbone 29

30 6. Copper Terminations at 110/BIX ARROW symbol for 110/BIX punch-down Terminate TELEPHONE at 110/BIX IDC strip Terminate TELEPHONE backbone on 110/BIX IDC strip Show cross-connect connect between 110/BIX IDC strips 30

31 7. Separating Termination Locations Separate WALL and RACK terminations ti BW=Backbone/Wall BR=Backbone/Rack DW=Distribution/Wall DR=Distribution/Rack 31

32 8. Converged Services Crossover copper connection Link between RACK and WALL for backbone copper 32

33 9. Common Outlet ONE outlet for two services RED path for voice BLUE path for data 33

34 Summary: In the Telecom Room Symbolic representation for Copper cabling and terminations 110/BIX AND patch panel Optical fibre cabling and terminations Wall and rack mounting Equipment Patch/cross-connect cords Next up 34 Backbone cabling

35 35 BACKBONE CONNECTIONS

36 Revisit TIA 568.C.0 Note the Backbone connections between distributors 36

37 Distributor Connections Return to the same new starting ti point 37

38 Distributor Connections Expand the bubble 38

39 Distributors B and A 39

40 Backbone Cables Between Distributors 40

41 Step 1: Replace OLD symbol with NEW Compare OLD style with NEW style 41

42 Step 1: Replace OLD Symbol with NEW Note: Distributor B has Equipment but no Horizontal Distribution 42

43 Step 2: Extend the Backbone Between Distributor A and Distributor B 43

44 Cable Terminations are Detailed: Not Possible Using the Old Style 44

45 Better Organize the Diagram: Shift Elements to Prevent Symbol Interference 45

46 Clean Up: Tighten Symbols Group Backbone Cables Together; Apply Labels 46

47 Add Fibre to Backbone and Equipment (Symbols are Exaggerated for Clarity) 47

48 Add Legend: Component Details and Room Locations 48

49 Relating the Diagram to a Contract Document Cable: Types: defined Quantity: defined Termination: Types: defined Locations: defined Quantities and formats defined 49

50 Special Conditions: Overvoltage Protection 50

51 Special Conditions: Equipment Plug In (PBX) 51

52 Special Conditions: Equipment Plug In (PBX) 52

53 Symbols Used 53

54 Part 5 EXAMPLES 54

55 Sample: Full Riser Schematic 55

56 Focus Area: Entrance and Backbones 56

57 Building Entrance Copper Backbone 110 Terminations - Diverse Routing Building entrance Diverse backbone pathways 57

58 Focus: Distribution Terminations 58

59 Focus: Distribution Terminations Outlets in two work areas to common patch panel Pay phones run back to 110 in entrance room 59

60 EXAMPLE: Data Centre: Sample: 2 rows x 6 racks + 2 core Copper: Ethernet Cat 6A Rack to end of row End of row to core End of row to core Rack to end of row Admin point 1 60 Admin point 2

61 Data Centre: Sample: 2 rows x 6 racks + 2 core Fibre Channel + Ethernet Two more administration points Different End of row to Different core End of row to core Admin point 3 61 Admin point 4

62 Data centre: All cables + terminations: One diagram 62

63 Data centre: All cables + terminations: One diagram

64 Data Centre: Context 64

65 Data Centre: 4000 sf One drawing 100 Cabinets 3 levels of hierarchy Core Distribution Edge Parallel redundant backbone Ethernet fibre and Cat 6A distribution Fibre channel Two FC administration points 65

66 Part 6 CONCLUSION 66

67 Conclusion One drawing CAN represent entire system Cables AND terminations Rooms and enclosures Cross-connections and patch cords Equipment connections No duplications, no ambiguity Essential member of contract documents 67

68 The Riser as a Contract Document Peter Sharp, RCDD IBI Group peter.sharp@ibigroup.com 68