Application Note
June 15, 2007
PSTN and Data Network Technologies Used With one-X Quick Edition
A 66 Punch Block Each row of a 66 block is set up for one pair of wires to be spliced to another pair; however, any pair of clips can be used to connect any two wires. It is named because the solid copper wires are punched down into short open-ended slots known as Insulation-displacement connectors. These slots usually cut crosswise (not lengthwise) across an insulating plastic bar and contain two sharp metal blades which cut through the wire's insulation as it is punched down. These blades hold the wire in position and make the electrical contact with the wire as well.
A 110 Punch Block The 110 block is often used at both ends of Category 5 (CAT5) cable runs through buildings. In switch rooms, 110 blocks are used to connect cables to patch panels. At the other end, 110 connections are in the modular sockets in faceplates. 110 blocks are preferred in high-speed networks because they introduce less crosstalk and are certified for use in CAT5 systems.
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Application Note
June 15, 2007
RJ-45 Modular Jacks and Plugs The RJ-45 (Registered Jack-45) is a telephone connector that holds up to eight wires. RJ-45 plugs and sockets are used in Ethernet and Token Ring Type 3 devices. Modular RJ-45 connectors have gender. The male connector is called a plug and the female connector is called a jack or a socket.
RJ-11 Modular Jacks and Plugs The RJ-11(Registered Jack-11) is a telephone connector that holds up to four wires. The RJ-11 is the common connector used to plug the handset into the telephone and the telephone into the wall. A six-wire variation of RJ-11 is also commonly used. Modular RJ-11 connectors have gender. The male connector is called a plug and the female connector is called a jack or a socket.
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Application Note
June 15, 2007
CAT5 and CAT5e Cable A Category 5 cable, commonly known as CAT5, is a twisted pair cable type designed for high signal integrity. Many such cables are unshielded but some are shielded. CAT5 has been superseded by the CAT5e specification. This type of cable is often used in structured cabling for computer networks such as Ethernet, and is also used to carry many other signals such as basic voice services, token ring, and ATM (at up to 155 Mbit/s, over short distances).
Twisted Pair Cable Twisted pair cabling is a form of wiring in which two conductors are wound together for the purposes of canceling out electromagnetic interference (EMI) from external sources and crosstalk from neighboring wires. The Diagram below depicts 2 twisted pair wire.
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Application Note
June 15, 2007
Avaya G10/G11 Interconnections Below is a typical G10/G11 installation. In most offices POTS lines (standard analogue lines) are terminated onto the wiring closet 110 block or 66 block. Twisted pair takeoffs from the 110/66 punch- down block get fed into RJ-11 sockets. Standard RJ-11 patch cables are then used to patch between the RJ-11 termination point (white box is picture below) and the rear of the G10/G11 gateway.
PoE Enabled Switch Below is an example of a Power over Ethernet switch connected to a one-X Quick Edition telephone. The switch powers the phone through the unused twisted pairs on a standard CAT5 Ethernet cable. These types of switches are auto sensing and will only send power to PoE enabled devices. Plugging a standard non-PoE enabled device into one of these ports is safe.
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Application Note
June 15, 2007
Data Router In a typical office network there will be a router to provide devices on that network access to other network segments or to the Internet. Routers often do the network IP management through a built-in DHCP server. Below is an example of a data router with a PoE Switch stacked on top of it. Data routers are easily identifiable by locating an RJ-45 socket labeled “WAN” or “Internet”.
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