 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
||||
  |
||||
| Wire a RJ45 jack Ethernet Eight Position (RJ-45) Modular Cable  T568B (with clip down)
 T568A (with clip down)
UTP consists of 4 twisted pairs. The standard colors are: white/blue - blue white/orange - orange white/green - green white/brown - brown Hub to Hub or Computer to Computer connection: one end T568A, other end T568B (Crossover Cable). Hub to Computer connection: T568B on each end. Color codes Demarc to CSU/DSU plugs 128K or higher Frame Relay/T1 Plug The cable from the telco demarc (punch-down block) to the CSU/DSU is just a plain straight-through 8-conductor modular cable with a RJ-48 or RJ-45 plug at the end. For short runs, flat ribbon cable is fine, and one about 6 feet is normally supplied with the CSU. Make sure that the pins are not reversed, looking through the clear plugs you should see the colored wires in the same left-to-right order on both ends. A twisted-pair ethernet cord will also work, and is better for anything over a few feet. It isn't necessary that it be shielded. 
Pin Number Designations
RJ48S pinout An RJ48S biscuit is frequently used to terminate a data circuit. When opening the biscuit, there are 8 color coded wires. Use the internal screws to connect your cable in the following manner: White/Blue Blue (jack) Blue Orange (jack) White/Orange Brown (jack) Orange Gray (jack)  A commonly used Network Interface Device (NID) by HyperEdge - pinout diagram w. screw terminal assignments T1 Loopback plug  56K Frame Relay plug The plug for 56K frame relays differs slightly from the T1 or 128K+. The pairs are on different pins (7 and 8 as opposed to 4 and 5) and the transmit and recieve pairs are swapped.  Pin Number Designations
USOC (phone) pinout   |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 |
||||
|
||||
| ©2006 Project Resource Solutions | ||||