Define Scope
10%of exam
Design ICT Solutions
66%of exam
Bid/Tender Support
9%of exam
Installation Support
15%of exam
Quick Facts
- Credential
- BICSI RCDD
- Role
- ICT infrastructure designer
- Questions
- 100 scored
- Time
- 150 minutes
- Formats
- Multiple-choice/response + enhanced matching
- Pass score
- Not published
- Primary text
- TDMM 15th edition
- Blueprint
- Version 15
Project Flow
Scope -> Design -> Bid -> Install
Scope: requirementsDesign: documentsBid: procureInstall: verify
Scope Essentials
- Requirements
- Measurable stakeholder needs
- Constraints
- Limits shaping design
- Assumptions
- Documented unknowns
- Exclusions
- Work explicitly omitted
- Site survey
- Verify existing conditions
- AHJ
- Code interpreter + enforcer
- Basis of design
- Design rationale record
Project Inputs
- Owner goals
- Desired business outcomes
- Record documents
- Verify against field
- Codes
- Minimum legal requirements
- Standards
- Consensus performance criteria
- Budget
- Cost boundary
- Schedule
- Time boundary
Space Flow
EF entry | ER core | TR area | WA user
EF: entranceER: centralTR: areaWA: user
Permanent Link vs Channel
Permanent link
- Fixed cabling
- Excludes user cords
- Installed-work acceptance
Channel
- End-to-end path
- Includes cords
- Operational connection
Fixed work vs complete path
Media Picker
- Long or upgrade reach→Singlemode fiber
- Short supported optics→Multimode fiber
- Copper endpoint→Balanced pair
- Severe EMI exposure→Optical fiber
- Interbuilding potential→All-dielectric fiber
- Frequent reconfiguration→Zone cabling
- Physical resilience→Route diversity
- High PoE load→Thermal review
Design Fundamentals
- Bandwidth
- Rated capacity
- Throughput
- Useful delivered data
- Attenuation
- Signal loss
- Return loss
- Higher means fewer reflections
- NEXT
- Near-end pair coupling
- Alien crosstalk
- Neighbor-cable coupling
- EMI
- External electromagnetic noise
- Impedance mismatch
- Creates signal reflections
- Propagation delay
- Signal transit time
Signal Health
Loss travels; reflections return
Attenuation: lossReturn loss: reflectionsNEXT: pair coupling
OLTS vs OTDR
OLTS
- End-to-end loss
- Acceptance measurement
- Source + meter
OTDR
- Event location
- Trace analysis
- Diagnostic detail
Total loss vs event map
Spaces + Topology
- EF
- Outside services enter
- ER
- Centralized common equipment
- TR
- Area-serving distribution
- TE
- Limited local distribution
- Work area
- User-device connection zone
- Backbone
- Spaces interconnection
- Horizontal
- TR to outlet
Backup Power
UPS bridges; generator sustains
UPS: immediateGenerator: startupCoordinate both
Bonding vs Grounding
Bonding
- Connect conductive parts
- Limit potential differences
- Low-impedance path
Grounding
- Building grounding system
- Earth reference
- Code-directed connection
Equalize vs reference
Copper Links
- Permanent link
- Fixed installed cabling90 m
- Channel
- Link plus cords100 m
- Balanced pair
- Twists reject noise
- Untwist
- Degrades pair balance
- CP
- Fixed intermediate connection
- MUTOA
- Multiuser outlet assembly
- AXT
- Between-cable crosstalk
- Wiremap
- Continuity + pairing check
- DCR unbalance
- Uneven PoE current risk
CP vs MUTOA
CP
- Intermediate connection
- Fixed horizontal segment
- No user cords
MUTOA
- Multiuser outlet
- Work-area cords
- Accessible fixed location
Connection vs user outlet
Fiber Design
- Singlemode
- Long reach + headroom
- Multimode
- Shorter premises links
- Loss budget
- All events + margin
- OLTS
- End-to-end loss
- OTDR
- Locate link events
- Fusion splice
- Permanent glass joint
- Inspection
- Inspect before connecting
- Connector loss
- Include every mated pair
- Splice loss
- Include every splice event
Pathways
- Fill
- Code-compliant occupancy
- Bends
- Increase pulling stress
- Pull point
- Controls difficult pulls
- Pulling tension
- Cable force limit
- Sidewall pressure
- Bend contact stress
- Separation
- Reduce interference exposure
- Route diversity
- Separate failure paths
- Bend radius
- Protect cable performance
- Support spacing
- Follow system requirements
Bonding + Firestop
- Bonding
- Equalize conductive potential
- Grounding
- Building ground connection
- PBB (TMGB)
- Primary telecom busbar
- SBB (TGB)
- Secondary telecom busbar
- TBB
- PBB-to-SBB backbone
- Listed system
- Matched tested assembly
- Re-enterable
- Supports cable changes
Integrated Systems
- High-power PoE
- Bundle heating risk
- UPS
- Immediate short-duration power
- Generator
- Longer-duration backup
- Wireless survey
- Coverage + capacity evidence
- All-dielectric fiber
- No conductive path
- Hot/cold aisles
- Reduce airflow mixing
- ESS
- Electronic safety + security
Administration
- Identifier
- Unique durable label
- Record
- Identifier-linked information
- Design drawing
- Intended construction
- Record drawing
- Accepted installed condition
- Change log
- Trace approved revisions
- Test record
- Evidence per link
Design Documents
- Drawings
- Locations + routing intent
- Specifications
- Materials + workmanship
- Schedules
- Structured component data
- Details
- Critical interface construction
- Calculations
- Traceable design basis
- BOM
- Quantity planning basis
- QA review
- Check coordination + completeness
Special Environments
- OSP
- Campus route + protection
- Data center
- Capacity + resilience
- Health care
- Clinical risk coordination
- Audiovisual
- Signal + space coordination
- Intelligent buildings
- Converged building systems
- Wireless
- RF-based infrastructure
- Residential
- Owner-use requirements
RFI vs Addendum
RFI
- Asks question
- Seeks clarification
- No automatic change
Addendum
- Formal pre-bid issue
- Changes procurement documents
- Reaches all bidders
Question vs formal change
Document Picker
- Need design approach→RFP
- Need qualifications or quote→RFQ
- Bidder needs clarity→RFI
- Pre-bid change→Addendum
- Post-award scope change→Change order
- Installed condition→Record drawing
Bid Documents
- RFP
- Evaluate approach + capability
- RFQ
- Qualifications or quotation request
- Bidder RFI
- Requests clarification
- Addendum
- Formal pre-bid change
- Substitution
- Needs measurable equivalence
- Bid leveling
- Normalize proposal scope
- Bid form
- Standardize proposal response
- Alternate
- Priced scope option
- Allowance
- Owner-set cost placeholder
- Unit price
- Per-unit adjustment basis
Submittal vs Change Order
Submittal
- Proposed products
- Checks general conformance
- No scope waiver
Change order
- Authorized scope change
- Tracks cost + time
- Updates contract
Conformance vs authorization
Acceptance Picker
- Measure optical loss→OLTS
- Locate fiber event→OTDR
- Accept fixed copper→Permanent-link test
- Check complete channel→Channel test
- Hidden work pending→Field observation
- Defect corrected→Retest
Field Support
- Submittal
- Proposed compliance evidence
- RFI
- Question seeking direction
- Change order
- Authorized contract change
- Field observation
- Visible-work review
- Nonconformance
- Document unmet requirement
- Punch list
- Remaining corrective work
Punch List vs Completion
Punch list
- Remaining deficiencies
- Corrective actions
- Tracked to closure
Substantial completion
- Usable intended purpose
- Contract milestone
- Minor work remains
Open items vs milestone
Testing + Acceptance
- Certification
- Test against limits
- Qualification
- Estimate application support
- Reference method
- Defined test baseline
- Calibration
- Current instrument evidence
- Remediation
- Correct then retest
- Acceptance
- Criteria-based approval
Closeout
- Record drawings
- Verified installed routes
- Test results
- Accepted link evidence
- Warranties
- Coverage + start dates
- Training
- Operations handoff
- Spares
- Documented turnover stock
- Substantial completion
- Usable intended purpose
Common Traps
Code vs standard
AHJ interprets adopted code ≠ Contract references standards
Rated vs delivered
Bandwidth is capacity ≠ Throughput is delivered
Extra vs diverse
Extra strands add capacity ≠ Separate routes add resilience
Loss vs reflection
Insertion loss attenuates ≠ Return loss reflects
Sealant vs system
Material alone insufficient ≠ Listed assembly restores rating
Review vs responsibility
Submittal checks conformance ≠ Installer retains responsibility
Question vs direction
RFI asks ≠ Written authorization directs
Drawing vs reality
Design shows intent ≠ Record shows installed
Last Minute
- 1.Domains: 10 / 66 / 9 / 15
- 2.Pass score is not published
- 3.AHJ enforces adopted codes
- 4.Survey before selecting solutions
- 5.Copper: permanent 90; channel 100 m
- 6.OLTS = loss; OTDR = events
- 7.Bonding equalizes; grounding references
- 8.Firestop is a listed system
- 9.RFI asks; addendum changes
- 10.Submittal approval waives no requirement
- 11.Observe work before concealment
- 12.Correct failures; then retest
- 13.Record drawings reflect installed work
- 14.Closeout transfers operational evidence
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