Networking Wiring Instructions

This article is about the variety of networking diagram including RJ-11 plug wiring, RJ-45 plug wiring and the most common 110 block wiring diagram for your reference.

RJ-11 (Telephone) Plug Wiring Diagram
 

Picture above shows the wiring scheme for the plug side of an RJ-11 connector. The diagram is shown with the "hook clip" on the underside. The typical RJ-11 connector has six terminals. Usually, only the middle four pins are used. The POTS (Plain Old Telephone Service) residential telephone wiring generally contains two pairs of wires - designed for two separate telephone lines. The center pins (Red and Green) contain the first telephone line. Please note that business (digital) phone systems may be wired differently.

 

RJ-45 (DATA) Plug Wiring Diagram

Picture above is the wiring scheme for the plug side of an RJ-45 connector in accordance with T-568B standards. The T-568B standard is the most commonly used. The wiring diagram is shown with the "hook clip" on the underside. The wall jack may be wired in a different sequence because the wires may be crossed inside the jack. The jack should have a wiring diagram or designated pin numbers/colors to match up to the color code below. When wiring a jack or an RJ-45 plug, remember to keep the “twist” as close as possible to the (jack or plug) receptacle. This will insure compliance with Ethernet wiring standards.
                                                                  

110 Type Block Wiring Diagram

110 wiring block consists of four 25-pair connector strips. Every pair is identified by a combination of 5 tip and 5 ring colors - white, red, black (usually dark blue), yellow, violet.

 

Connection blocks are always marked with five "Ring" colors - blue, orange, green, brown, gray. Most of the connection blocks
 

Connection blocks are made 3, 4 or 5-pair sizes. Four and five-pairs sized connection blocks are the most commonly used onesConnection blocks are made 3, 4 or 5-pair sizes. Four and five-pairs sized connection blocks are the most commonly used ones