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:
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
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):
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
PLC vs DCS vs SCADA (Evolution of Industrial automation)
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
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
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RESOURCES:
Chromatic dispersion
Coax Cables Explained
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.
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.
Practice RCDD EXAM: CLICK HERE
RESOURCES DISCUSSED THIS WEEK:
Differential and Common Mode Signals
RESOURCES DISCUSSED THIS WEEK:
RESOURCES DISCUSSED THIS WEEK:
BICSI RCDD Certification Handbook
FREE BICSI ICT Terminology Handbook
