Cheat sheet

BICSI Technician Cheat Sheet

Copper Cabling

25%of exam

Cat 5e/6/6A specsT568A/B color orderTwisted pairDistance limitsTermination blocks

Optical Fiber

25%of exam

Singlemode vs multimodeOM1-OM5 bandwidthWavelengths 850/1310/1550Connector typesSplice loss

Termination and Connectors

10%of exam

RJ45 pinout110/Krone/BIX blocksLC/SC/ST/MTPPolish typesCable prep

Testing and Certification

10%of exam

OTDR tracesTDR copperNVPLoss budgetsCertification scanners

Codes and Standards

5%of exam

TIA-568TIA-607 bondingTIA-562NEC/NFPATSB bulletins

Grounding, Bonding, Firestopping

15%of exam

TBB #6 AWGTMGB/TGBF/T/L/W ratingsPenetration sealsNEC compliance

Pathways and Spaces

5%of exam

Conduit fillCable traysSleevesTR/TEF spacesBend radius

Safety

5%of exam

PPELockout/tagoutLadder safetyFiber shardsLaser eye safety

Project and Documentation

5%of exam

As-built drawingsTest reportsWarrantyCoordinationBlueprint reading

Quick Facts

Exam
BICSI TECH
Questions
100 MCQ
Time
2 hours
Pass
Scaled score
Hands-On
12 tasks
Task Time
20 min each
Fee
$200+
Validity
3 years
Retake
30 days

T568A Color Order

WGrn Grn WOrg Blu WBlu Org WBrn Brn

Pin1 WGrnPin3 WOrgPin6 Org

T568A vs T568B

T568A

  • WGrn first
  • Residential
  • US gov

T568B

  • Worg first
  • Commercial
  • Most common

Orange/green swap

Copper Category Picker

  1. Up to 1GbECat 5e(100 MHz)
  2. Up to 5GbECat 6(250 MHz)
  3. 10GbE 55mCat 6(37-55m)
  4. 10GbE 100mCat 6A(500 MHz)
  5. 25/40GbE 30mCat 8(2000 MHz)
  6. Noisy environmentS/FTP Cat 6A(Shielded)

Copper Categories

Cat 5e
100 MHz, 1GbE100MHz
Cat 6
250 MHz, 5GbE250MHz
Cat 6A
500 MHz, 10GbE500MHz
Cat 8
2000 MHz, 25/40GbE2GHz
UTP
Unshielded twisted pair
F/UTP
Foil over twisted pairs
S/FTP
Braid + foil pairs
AWG 22-24
Typical conductor gauge

Cat 6 vs Cat 6A

Cat 6

  • 250 MHz
  • 10GbE 55m
  • UTP common

Cat 6A

  • 500 MHz
  • 10GbE 100m
  • Alien crosstalk

Freq and distance

Copper Distance Limits

Channel
100 m max100m
Permanent Link
90 m max90m
Equipment Cord
5 m each end5m
Work Area Cord
5 m max5m
CP Cord
5 m max5m
Total Cords
10 m combined

Permanent Link vs Channel

Permanent Link

  • 90 m
  • Excludes cords
  • Tester adapter

Channel

  • 100 m
  • Includes cords
  • Full end-to-end

Tester setup

T568A/B Color Order

T568A Pin 1
White/Green
T568A Pin 2
Green
T568A Pin 3
White/Orange
T568A Pin 4
Blue
T568A Pin 5
White/Blue
T568A Pin 6
Orange
T568A Pin 7
White/Brown
T568A Pin 8
Brown
T568B
Swap orange/green pairs

OM Fiber 10GbE Distance

OM1 33m OM2 82m OM3 300m OM4 400m

OM1 62.5um 33mOM3 laser 300mOM4 400m

Singlemode vs Multimode

Singlemode

  • 9um core
  • One path
  • Long haul km

Multimode

  • 50/62.5um core
  • Multiple paths
  • Short m

Distance vs cost

Fiber Type Picker

  1. Long haul >10kmOS2(9um 1310/1550)
  2. 10GbE 33mOM1(62.5um)
  3. 10GbE 82mOM2(50um)
  4. 10GbE 300mOM3(laser optimized)
  5. 10GbE 400mOM4(VCSEL)
  6. 40/100GbE shortOM4/OM5(MTP parallel)

Fiber Types

OS1
Singlemode indoor, 1310/15509um
OS2
Singlemode low-water, 1310/15509um
OM1
62.5 um, 10GbE 33m62.5um
OM2
50 um, 10GbE 82m50um
OM3
50um laser, 10GbE 300m50um
OM4
50um, 10GbE 400m50um
OM5
WBMMF, 4x WDM50um
Core/Clad
9/125, 50/125, 62.5/125

Fusion vs Mechanical

Fusion

  • Arc weld
  • ~0.05 dB loss
  • Permanent

Mechanical

  • Adhesive sleeve
  • 0.1-0.3 dB
  • Field quick

Low loss vs speed

Splice Picker

  1. Min lossFusion(~0.05 dB)
  2. Field quickMechanical(0.1-0.3 dB)
  3. Permanent OSPFusion(Long term)
  4. Emergency restoreMechanical(No arc)
  5. High count ribbonFusion mass(12 at once)

Fiber Wavelengths

850 nm
Multimode shortMM
1310 nm
Singlemode/OM zeroSM
1550 nm
Singlemode longSM
1490 nm
PON downlink
1625 nm
OTDR test port
Loss Budget
Max allowable attenuation
Macrobend
Bend loss > spec
Microbend
Small fiber stress loss

Splicing Methods

Fusion
Arc weld, ~0.05 dB0.05dB
Mechanical
Adhesive sleeve, 0.1-0.3 dB0.3dB
Cleaver
Score/break clean end
Splice Tray
Holds splice in closure
OSP Closure
Aerial/buried splice case
Splice Box
Rack mounted splice

Termination Blocks

110 Block
Insulation displacement, Cat 5e/6
Krone
IDC, European telecom
BIX
Nortel IDC block
66 Block
Legacy voice, M-block
RJ45
8P8C modular plug
RJ11
6P2C/6P4C voice
Modular Plug
Terminates patch cord
Jack
Female workstation outlet

Fiber Connectors

LC
Small form factor, snap
SC
Push-pull, 2.5mm
ST
Bayonet, 2.5mm
MTP
12/24 fiber multifiber
MPO
Multifiber, ribbon
UPC
Ultra physical contact, blue
APC
Angled 8 deg, green
Polish
PC/UPC/APC return loss

OTDR vs Certification Scanner

OTDR

  • Fiber length
  • Fault location
  • Backscatter trace

Scanner

  • Cat 6 cert
  • NEXT/RL
  • Pass/fail report

Fiber vs copper

Tester Picker

  1. Fiber length/faultOTDR(Backscatter)
  2. Copper length/faultTDR(Impedance)
  3. Cat 6A certCertification Scanner(TIA pass/fail)
  4. End-to-end lossOLTS(Source + meter)
  5. Broken fiberVFL(Red light)
  6. Pair tracingTone Generator(Probe amp)

Test Equipment

OTDR
Optical time domain reflectometer
TDR
Copper fault distance
Certification Scanner
Validates Cat 6/6A
OLTS
Optical loss test set
OPM
Optical power meter
VFL
Visual fault locator
Tone Generator
Copper pair trace
NVP
Nominal velocity propagation

Copper Test Parameters

NEXT
Near-end crosstalk
PSNEXT
Power sum NEXT
ACRF
Attenuation crosstalk ratio
Return Loss
Impedance mismatch
Insertion Loss
Attenuation, dB
Delay Skew
Pair timing diff
Length
TDR distance check

Codes and Standards

TIA-568
Commercial cabling standard
TIA-569
Pathways and spaces
TIA-607
Bonding/grounding standard
TIA-570
Residential cabling
NEC Article 770
Optical fiber cables
NEC Article 800
Premises comms wiring
NFPA 70
National Electrical Code
TSB-95
Cat 5e performance

Firestop Ratings

F fire T temp L leak W water

F hours enduranceL cfm leakageW water resistance

Bonding and Grounding

TBB
Telecom bonding backbone, #6 AWG
TMGB
Telecom main grounding busbar
TGB
Telecom grounding busbar
BCBB
Bonding conductor backbone
Riser
Vertical bonding per floor
#6 AWG
Min TBB conductor
#3 AWG
Bonding for multi-floor

Bonding Chain

TMGB -> TGB -> TBB -> Equipment

TMGB main busbarTBB #6 AWGTGB per room

Firestop Systems

F Rating
Fire endurance, hours
T Rating
Temperature rise, hours
L Rating
Air leakage, cfm
W Rating
Water resistance
Through Penetration
Cable through wall
Membrane Penetration
One side breach
Firestop Putty
Retrofittable seal
Intumescent
Expands with heat

Pathways and Spaces

Conduit
Rigid raceway, fill 40%
Cable Tray
Open support, ladder
Sleeve
Wall/floor penetration
TR
Telecom room, equipment
TEF
Telecom equipment field
ER
Equipment room, main
Bend Radius
Min 10x diameter UTP

Safety

PPE
Gloves, glasses, hard hat
Lockout/Tagout
Energy isolation
Fiber Shard
Sharps container dispose
Laser Class
1/1M/2/3R fiber safety
Ladder
3-point contact
Fall Arrest
Above 6 ft harness
MSDS
Solvent/adhesive sheets

Project and Documentation

As-Built
Final installed drawings
Test Reports
Certification records
Warranty
Manufacturer 25 yr system
Blueprint
Read plan/elevation
RFP
Request for proposal
CEC
Continuing ed credits

Common Traps

Channel vs permanent

Channel includes cords PL is 90m

T568A vs B

A residential WGrn B commercial WOrg

OM core size

OM1 62.5um OM2-OM5 50um

Splice loss

Fusion 0.05 dB Mechanical up to 0.3

Wavelength use

850 MM short 1310/1550 SM

Bonding size

TBB #6 AWG min Multi-floor #3 AWG

Hands-on first

Hands-on required first Then written exam

Last Minute

  1. 1.100m channel / 90m permanent link
  2. 2.T568A WGrn,Grn,WOrg,Blu,WBlu,Org,WBrn,Brn
  3. 3.Cat5e 100MHz,Cat6 250MHz,Cat6A 500MHz
  4. 4.OM1 33m,OM3 300m,OM4 400m at 10GbE
  5. 5.Singlemode 9um,1310/1550nm
  6. 6.Fusion ~0.05 dB,mechanical 0.1-0.3 dB
  7. 7.TBB #6AWG TMGB TGB/room
  8. 8.Firestop F T L W ratings
  9. 9.OTDR fiber TDR copper scanner cert
  10. 10.Hands-on 12 tasks,20 min each,first
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