Introduction to
T1/T3 Networking
2-Day Session

We have all been exposed to the industry buzzing about the use of T1 and T3. What has been lacking, however is the information about what the use of all digital transmission will do for you. The rumors in the industry are that T1 is very expensive, and T3 is even more so. The pricing of the circuits and the equipment is a relative matter. When you look at the benefits that can be achieved, the costs may not appear as drastic. Although this is a very technical subject, we will simplify the terms, acronyms, uses and the components making up a T1 or T3 service.

Chapter 1 - Ordering a T1
T1 Fundamentals
Four Wire Circuit Connection
The Connection to CPE
Time Division Multiplexed
Pulse Code Modulation (PCM)
The Process
Bipolar
Byte Synchronous
B8ZS

Chapter 2 - Use of T1 for Voice and Data Services
Encoding the signal, using PCM and ADPCM techniques
Analog Voice Services
Direct Inward Dialing and Direct Outward Dial lines on T1
WATS consolidations
Foreign Exchange Services
Low speed digital data
High speed digital data
Local Area Network connections on a T1
Video conferencing capabilities

Chapter 3 - T1 Framing Conventions
The North American and International Digital Hierarchy
The DS0 structure as the basis of all channels
Combining channels into a full T1
The D4 or super frame format

Chapter 4 - Equipment Used On T1 Circuits
Channel Service Units (CSU/DSU)
Channel Banks and Multiplexers (MUX)
Digital Access Cross Connects

Chapter 5 - Problem Resolution On T1 Services
Limitations of the super frame format
Enhancements gained from extended super frame format (ESF)
In service monitoring vs. out-of-service testing issues
Diagnostic capabilities

Chapter 6 - Timing And Signaling
How timing is derived
Clocking definitions and how they apply to you
Signaling variations that exist
Clear channel service coordination

Chapter 7 - Future Uses Of T1 Networks
Integrated Service Digital Networks (ISDN)
Frame Relay and Fast Packet Switching
Fractional T1 Components
Inverse Multiplexing

Chapter 8 - Introduction to T3
T3 defined
Difference between T1 and T3
Potential benefits of T3 compared to T1
Risks associated with T3
The basic components of a T3 circuit

Chapter 9 - Combined Services On T3
Super-rate digital services
Multiple T1 consolidations onto a single circuit
High speed data services
Access to switched multi-megabit data services (SMDS) at the local loop

Chapter 10 - T3 Framing conventions
The DS3 Structure
The framed format for T3
Superframe format evolution

Chapter 11 - T3 Equipment
Customer premises equipment
Multiplexers (MUX)
Digital access cross connects (DACS)
Electronic switching systems (ESS)
Network processors

Chapter 12 - Media used for T1 and T3 access
Copper wires (Twisted Pairs)
Coaxial cables
Microwave radio systems (analog and digital)
Fiber optics
Infrared

Chapter 13 - Future uses of T1 and T3 Network services
Voice
Data
Computer assisted design and manufacturing (CAD/CAM)
Electronic medical imaging systems (EMI)
High speed serial interfaces (HSSI)
Digital broadcast services (DBS)

Chapter 14 - Typical Network designs
Analog to digital circuit replacements
Multiple service arrangement consolidations
Point-to-point services
Tail circuit extensions
Voice/data/LAN/video applications consolidated

Chapter 15 - SONET
What Is SONET?
The Link Architecture
Mid-Span Meet
SONET Multiplexing
The STS-1 Frame
The Frame
The SONET STS-1 Frame Format
SONET Services

© 2001 - TCIC

Call us at 1-800-322-2202 for more information about our instructor-led training.