TDMM Study Group

This is a private page for the members of the TDMM Study Group. Each zoom call is recorded and placed here where only members can see it. This page is private and unlisted. Please only share to other members of the TDMM Study Group.


RESOURCES:

Introduction fo NCS v6 0

Design and Construction Process Part 2 CSI and MasterFormat

NEMA Ratings – The Complete Step-by-Step Guide for Beginners

What is IP Rating? (Ingress Protection Rating)

All Practice Tests: (password by email)


RESOURCES:

How to interpret an earned value graph

Project Management Terminology

All Practice Tests: (password by email)


RESOURCES:

Chapter 18 Practice Exam: (Access code sent via email)

Chapter 19 Practice Exam: (Access code sent via email)


RESOURCES:

BICSI 002 2019 Data Center Presentation for CI&M

What is a Fire Alarm System?

Commercial Facility Fire Systems: Fire Alarm Control Panel

Chapter 17 Practice Exam: (access code sent via email)

Chapter 18 Practice Exam: (access code sent via email)


RESOURCES:

Video on Intermediate Frequency (IF):

DAS explained:

Chapter 16 Practice Exam: (access code sent via email)

Chapter 17 Practice Exam: (access code sent via email)


RESOURCES:

Pulse Code Modulation – Digital Audio Fundamentals

Different Types of 802.11 Modulation Schemes

OFDM – Orthogonal Frequency Division Multiplexing

2.3 – OFDM/ OFDMA IN 4G LTE – PART 1

Fiber Optics For Wireless Networks


RESOURCES:

Cabling System Planning and Design for Smart Buildings

Webinar

PLC vs DCS vs SCADA (Evolution of Industrial automation)

What is OSI Model?

BAS 101

CHAPTER 14 PRACTICE EXAM (access code sent via email):

CHAPTER 15 PRACTICE EXAM (access code sent via email):


RESOURCES:

Front or Rear Projection: Which is best for your event?

Plasma Display panel, Liquid crystal display & LED display

SDTV Vs. HDTV IMSG Presentation Video

CHAPTER 13 PRACTICE EXAM (code sent via email):


RESOURCES:

 What is Sound? The Fundamental Science Behind Sound

Calculating the size of a screen

Interlaced vs Progressive Screens

Composite vs. Component Video Signals

Screen Calculation Worksheet (Example)

Screen Calculation Worksheet (Blank)


RESOURCES:

 Testing and Mapping Cable Runs

Premises Cabling Lecture 7: Testing UTP Cabling

TDMM 14th edition Episode 6


RESOURCES:

Labeling and Documentation – CompTIA Network+ N10-006 – 5.7

Wired Communications Labeling Telecommunications Room (TR) CAT 6 Cabling on Patch Panel

Wired Communications Installs Grounding/Bonding Wire & Labels to Basket Trays in Data Center

STANDARDS INFORMANT: YOUR GUIDE TO NETWORK CABLING AND DATA CENTER STANDARDS

What is RFID? How RFID works? RFID Explained in Detail

The Survival Podcast – Steven Harris on Battery Back Up Systems


RESOURCES:

1. Ohms Law Explained – The basics of circuit theory

2, Bonding Terminology Changes



RESOURCES:

How firestop testing is conducted

Unique Firestop Training Video

STI “The Burn” Podcast

RESOURCES:

Fresel Reflection

Network Connectors Explained

Optical Fiber Connectors

Firestop Systems



RESOURCES:

Chromatic dispersion

Video One

Video Two

Coax Cables Explained

Video One

This week I received an answer from Chris Hobbs (Training Provider Services Manager, BICSI) in response to our questions. Here is his response.

QUESTION: Will there be any test questions on the errata sheets?

ANSWER: The TDMM will be updated if mistakes are discovered. Students should always check for any errata that may be published to correct any issue.

QUESTION: Can you please explain the differences between Figure 5.21 and the verbiage on page 5-46 concerning pull through length discrepancies?

ANSWER: This is a commonly misunderstood topic that we cover in the DD102: Applied Best Practices for Telecommunications Distribution Design. Figure 5.21 states on the pull through method: 90 m (295 ft) recommended length pull-through. The on page 5-46 states “It is recommended that optical fiber cabling lengths do not exceed the maximum length limit for the application or ≈305 m (1000 ft), whichever is smaller.” The recommended length is 90m, this is to allow the fiber horizontal cable to be replaced with copper cable in the future. However, site conditions may not allow the recommended distance of 90m, so the recommended maximum is 305m or the equipment distance limitations. To sum up, the recommended distance is 90m, however the recommended maximum is 305m or application limit, whichever is smaller.


RESOURCES DISCUSSED THIS WEEK:

New Chapter 2 Electromagnetic Compatibility practice exam CLICK HERE (access code tdmmch2)

NEC 725.144 chart discussed tonight.



RESOURCES DISCUSSED THIS WEEK:

Ground Loops

Definition:
In an electrical system, a ground loop or earth loop occurs when two points of a circuit are intended to have the same ground reference potential but instead have a different potential between them.

Ground Loops Video

Logic Circuits

Logic circuits utilize two values for a given physical quantity (voltage, for example) to denote the Boolean values true and false or 1 and 0 respectively.  Logic circuits have inputs, as well as having outputs which can be dependent on the inputs.  In logic circuit diagrams, connection from one circuit’s output to another circuit’s input is displayed as an arrowhead at the input end.

Logic Circuits Video

Practice RCDD EXAM: CLICK HERE


RESOURCES DISCUSSED THIS WEEK:

Electromagnetic Radiation

Differential and Common Mode Signals


RESOURCES DISCUSSED THIS WEEK:

Bits and Bytes

Sinusoidal Wave

Impedance & Return Loss

NEXT, FEXT, and AXT

Time Division Multiplexing


RESOURCES DISCUSSED THIS WEEK:

CoreyandSteve.com

CET Networking & Education

BICSI RCDD Certification Handbook

FREE BICSI ICT Terminology Handbook


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