|
11.0 Wiring Diagrams and Schematics·Modem Test at the NID (Network Interface Device)
·Modem Test at the INI (Indoor Network Interface)
·RJ-45 Color Codes
·Solid color versus banded/striped wiring cross reference
·RJ-11/RJ-14 Color Codes and Wiring
·RJ-11/RJ-14 Wall Plate Jack
·Swapping Inner and Outer Pairs on an RJ-11 Wall Plate
·Crossover Cable Pinout
·Reverse Polarity Cable Pinout
·IFITL (PCDATA) Installation and Connections
·Standard POTS NID (Network Interface Device) Schematic
·Telco Wiring Color Code.
|
| |
Detailed instructions for testing your modem at the NID are available here.
Schematic and picture by Andy Houtz
Andy Houtz DSL
 feedback form
 feedback form
by Andy Houtz  edited by FAQFixer
last modified: 2006-12-27 22:13:03 |
| |
Below is a basic schematic for testing your modem at the INI (Indoor Network Interface). For detailed instructions please reference the INI Test FAQ. NOTE: If you live in a standard residential home please reference the NID Test FAQ and NID Test Schematic .
*Some modems (STH Test and Cayman Test) have the ability to test attainable line rate, relative bandwidth capacity, power, attenuation, and signal-to-noise ratio. If available, these measurements are the most accurate assessment of line quality.
Schematic by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:12:29 |
| |
Note: The T-568B is the current default standard for almost all applications.
Reference chart by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:12:12 |
| |
Wiring is usually solid color or banded/striped. Below are the the first three wire pairs and their respective colors.
Reference chart by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:11:52 |
| |
RJ-11 and RJ-14 Female Jack from the outside looking in. RJ-11 is the common standard for most phones and POTS devices.
Reference chart by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:11:34 |
| |
Standard RJ-11/RJ-14 Wall Plate Jack.
Schematic by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:10:28 |
| |
Some modems are designed to receive the DSL signal on the "outer pairs" (pins 2 and 5) instead of the "inner pairs" (pins 3 and 4) of an RJ-11 jack. You can use a line swapper or you can rewire your wall plate as shown. Note: If you rewire the wall plate as shown you will not be able to use most standard equipment that requires the "inner pairs".
Schematic by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2008-05-02 11:51:30 |
| |
A crossover swaps the transmit and receive pairs. Important Note: A crossover cable is not the same as a reverse polarity cable.
Diagrams by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:09:37 |
| |
A polarity cable swaps the positive and negative signals on the transmit and receive pairs. Important Note: A polarity cable is not the same as a cross over cable.
Diagrams by Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:09:23 |
| |
IFITL (Integrated Fiber In The Loop) is a 10Mb ethernet connection and does not require a DSL modem. It does however require a PPPoE client for connectivity. You can use a stand alone client such as BellSouth Connection Agent, RasPPPoE, or the native PPPoE client on Windows XP on the computer. You can also use a router as shown here.
IFITL requires a specialized, dedicated 10Base-T Protector and IFITL EBN (Entrance Bridge Network) be placed inside the customer's NID. Since IFITL installation use a completely separate line there is no need for inline microfilters on the POTS devices.
Important Note: IFITL also requires a crossover be built into the wiring before the NIC. The guidelines for placing the crossover varies and can be wired at the 10base-T protector, the IFITL EBN, or the wall plate inside the house. Most (but not all) technicians rewire the wall plate as the crossover point so standard CAT5 wiring can be used between the wall plate and the NIC or router (if present).
Pictures by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:09:06 |
| |
NIDs (or TNIs) come in a variety of styles as shown here. Depending on the age of the NID and type of the wiring used, the color codes and connections can vary. Please reference these FAQs for more information:
•RJ-11 Color Codes
•RJ-11 Wall Plate Schematic
Schematic and picture by Andy Houtz
Andy Houtz DSL
feedback form
feedback form
by Andy Houtz edited by FAQFixer
last modified: 2006-12-27 22:08:34 |
| |
Telco color code.
B=blue
O=orange
G=green
Br=brown
S=slate (not grey)
W=white
R=red
Bk=black
Y=yellow
V=violet (not purple)
Tip: Pairs
White 1-5
Red 6-10
Black 11-15
Yellow 16-20
Violet 21-25
Ring: Pairs
Blue First Pair 1,6,11,16,21
Orange Second Pair 2,7,12,17,22
Green Third Pair 3,8,13,18,23
Brown Fourth Pair 4,9,14,19,24
Slate Fifth Pair 5,10,15,20,25
Binders:
B/W 1-25
O/W 26-50
G/W 51-75
Br/W 76-100
And on and on.
FWIW Telco cable is built in 25 pair groups or binders. Any cable over 25 pairs will have binders which are the 25 pairs twisted and then wrapped in a multi-colored colored string (old days) or two colored plastic “binders”.
For example a pair in a 25 pair cable consisting of a black wire with blue stripe mated with a blue wire with a black stripe is pair 11. Now lets go to a cable with over twenty five pairs and lets say the same pair was in a binder/group wrapped with a brown/white string it would be pair 86. Make sense?
Wayne
feedback form
feedback form
by Splitpair edited by jazzman916
last modified: 2006-04-05 18:48:59 |
