It is good to keep a twist present right up to where the cable goes into the block. The blue pair is the first pair to use.Īpply the blue and the blue white into the RJ-11 block.
If using Ethernet cable, look for the blue pair. Now trim away the excess insulation which has been cut by pulling back the string and left hanging. It creates some waste, but it ensures you have no compromised wire. it is best to use the string to pull back, exposing more wire, and then cutting them off where the stripper was applied. When you strip telephone or Ethernet wire the wire strippers often damage the small fragile wire. Cut off the wire right at where you applied the wire stripper. Now use the string inside with the wire pairs to pull back, cutting further into the wire, exposing more. Go about an inch or more in and strip the telephone wire. RJ-11 is the standard for most telephones, answering machines and fax machines used in North America. The service loop is used wrapped at the bottom of the punch down block. There may be instances where you may need to connect to or transpose from the old 'quad' cable. Most cable nowadays is UTP (unshielded twisted pair).
Without extra, it might be necessary for the entire drop to be replaced. How to Wire a Phone Jack (Voice or Telephone RJ-11 thru RJ-14) (USOC Wiring Diagram) Telephone wiring for a phone outlet is typically either 1, 2 or 3 pairs (2, 4, or 6 conductor). The service loop is the extra wire you leave in the event that the punch down block needs rewired due to a problem with something like a broken wire. Add an extra 2 feet and 2 inches for a service loop. Used on a punch down block to bridge the left side incoming connection to telephones or other telephony devices connected on the right side of the punch down block (via wired to jacks).įor a 66 block it is a good idea to have a service loop. Some installations pull a Cat.3 or Cat.5 cable in which has 4 pairs of wires and they are wrapped from top to bottom of the punch down, provide for 4 phone lines, multiple phone connections for each line all the way down the block. The punch down tool is an impact tool that pushes the wire into the metal receiver of the block and cuts off the excess wire.įor a demarc is part of the Telephone System where the telephone company may use a Punch Down Block such as the 66 Block. When polarity is concerned, the RED and YELLOW are considered the HOT or POSITIVE. Traditional Telephony to Cat 5 Cross Reference In that case, the blue pairs are for the first line and use the orange pairs for the second line. Line 1 is the center pair, red and green. The RJ-11 connector has six terminals on it. 1.1 Traditional Telephony to Cat 5 Cross Reference.