Telecommunications Installation and Troubleshooting

1
Telecommunications Installation and
Troubleshooting

• Learning Outcome 11A
• Develop installation, troubleshooting and
  maintenance plans and procedures for home
  telecommunications systems.

2
Telephone Subsystem

• Delivers telephone services to home
• Design follows local codes and standards
• Demarcation
• Telephone enters home
• Service distributed to home
• SP responsibility stops

3
Termination blocks

• Terminate telephone wires
• Type
• 110 type blocks
• 100 pair and 300 pair
• 100 most common
• 4 rows 25 pairs
• Variation used in Residential networks
• Network block
• Punch down tool

4
Low-Voltage

• Telephone
• Cat 3
• FCC required minimum for phone lines
• Older homes
• Cat 5
• Newer constructions
• Recommended by ANSI/TIA/EIA-570-A
• Scalable
• Expanded for VoIP
• Setup in every room for phone and Internet
• Star topology

5
Tip and Ring

• Early telephone
• Switchboard plugs inserted into receptacle
• Tip of plug 1 conductor
• Ring other conductor
• Tip and Ring
• Colors of Tip
• White
• Red
• Black
• Yellow
• Violet
• Colors of Ring
• Blue
• Orange
• Green
• Brown

6
Wire Pairs and Color Codes

• 4 Pair cable such as CAT 5
• Primary color is tip white with tracer
• White wire tip first wire of pair to be
  punched down
• Ring Solid color
• Wire Pairs
• Pair 1 - Blue
• White/Blue
• Blue
• Pair 2 - Orange
• White/Orange
• Orange
• Pair 3 Green
• White/Green
• Green
• Pair 4
• White/Brown
• Brown

7
T568A

• 1 - White/Green
• 2 - Green
• 3 - White/Orange
• 4 - Blue
• 5 White/Blue
• 6 - Orange
• 7 White/Brown
• 8 - Brown

8
T568B

• 1 Orange/White
• 2 Orange
• 3 Green/White
• 4 Blue
• 5 White/Blue
• 6 Green
• 7 White/Brown
• 8 - Brown

9
6P6C or RJ11

• 6 Conductors
• 6 Wires contacts
• Jack or plug for termination
• Cat 3
• Connector RJ11 (if using other type it might
  not work)
• 6 pins
• Pair 1
• White/Blue Pins 3 and 4
• Pair 2
• White/Orange Pins 2 and 5
• Pair 3
• White/Green Pins 1 and 6
• Does not meet ANSI/TIA/EIA -570-A requirements

10
8P8C Jacks

• 8 position and 8 Contact
• Punch down for electrical connection

11
RJ31X Jacks

• Phone lines and alarm systems
• Security system seizes the line
• Alarm system is tripped
• RJ31X automatically disconnects the phone
• Alarm system dials appropriate
• Allows user to remotely connect to system and
  turn on/off alarm

12
Troubleshooting

• Steps to troubleshoot problems
• Observe symptoms
• Isolate cause
• Check connections
• Test hardware
• Test software

13
Questions Feel free to contact the creators of
this material

• Julian Carranza, jcarranza_at_dcccd.edu
• Mike Harsh, mharsh_at_ccccd.edu

This material is based upon work supported by the
National Science Foundation under Grant No.
0402356. Any opinions, findings, and conclusions
or recommendations expressed in this material are
those of the author(s) and do not necessarily
reflect the views of the National Science
Foundation