Modular connector - Knowledge

1397:. The 8P8C jack used by structured cabling physically accepts the 6-position connector used by RJ11, RJ14 and RJ25. Only RJ11 and RJ14 have full electrical compatibility because Ethernet-compatible pin-outs split the third pair of RJ25 across two separate cable pairs, rendering that pair unusable by an analog phone. Both the third and fourth pairs of RJ61 are similarly split. The incompatible T568A and T568B layouts were necessary to preserve the electrical properties of the third and fourth pairs for Ethernet, which operates at much higher frequencies than analog telephony. Because of these incompatibilities, and because RJ25 and RJ61 were never very common, the T568A and T568B conventions have largely displaced RJ25 and RJ61 for telephones with more than two lines. 449:

0.040 inches (1.02 mm) apart (contact pitch), so the width is dependent on the number of pin positions. However, not all plugs from all manufacturers have this capability, and some jack manufacturers warn that their jacks are not designed to accept smaller plugs without damage. If an inserted plug lacks slots to accommodate the jack's contacts at the outermost extremes, it may permanently deform those outermost contacts of an incompatible jack. Excessive resistance may be encountered when inserting an incompatible plug, as the outermost contacts in the jack are forcibly deformed.

1406: 364:) conductors, and a given plug is designed for only one type. The sharp prongs are different in the connectors made for each type of wire, and a mismatch between plug type and wire type results in unreliable connections. A modular plug for solid (single-strand) wire often has three slightly splayed prongs on each contact to securely surround and grip the conductor while scraping along the outside, and a plug for stranded wire has prongs that are designed to pierce the insulation and go straight through to contact multiple wire strands. 41: 571: 342: 330: 876: 1473: 792: 1118: 885: 1729: 1655: 1030: 1199: 801: 1893: 1881: 1741: 1643: 1039: 962: 1817: 1805: 466: 2105: 1560: 1552: 527: 1109: 1127: 1190: 1136: 921: 828: 819: 1843: 1703: 1226: 1048: 894: 953: 903: 1418: 1154: 1145: 1066: 1057: 980: 810: 457:

may also be colored with a light blueish tinge, to aid in quick recognition. The special plugs are preferred for test equipment and adapters, which may be rapidly connected to a large number of corresponding connectors in quick succession for testing purposes. The use of the special plugs avoids inadvertent damage to the equipment under test, even when a narrower plug is inserted into a nominally incompatible wider jack.

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telephone handset cable. The connector on the Amiga 1000 uses crossover wiring, similar to a telephone handset. The connector wiring on the Apple computers, however, requires a polarized straight-through pinout. Using a telephone handset cable instead of the supplied cable could short out the +5 volt DC supply and damage the Apple computer or the keyboard.

238:. Plugs are used to terminate cables and cords, while jacks are used for fixed locations on surfaces of walls, panels, and equipment. Other than telephone extension cables, cables with a modular plug on one end and a jack on the other are rare. Instead, cables are usually connected using a female-to-female coupler, having two jacks wired back-to-back. 1503:

different mechanical interface and wiring scheme than ANSI/TIA-568 T568A and T568B schemes with the 8P8C connector in Ethernet and telephone applications. Generic 8P8C modular connectors are similar to those used for the RJ45S variant, although the RJ45S plug is keyed and not compatible with non-keyed 8P8C modular jacks.

79:. The convenience of prior existence for designers and ease of use led to a proliferation of modular connectors for many other applications. Many applications that originally used bulkier, more expensive connectors have converted to modular connectors. Probably the best-known applications of modular connectors are for 2669:: This 8-pin modular plug is probably the most subject to name abuse, because it resembles the specialized RJ-45 connector. However, the RJ-45 wiring pattern (which includes an interface programming resistor) is so radically different from that of T568A and B that it really should not be called by that name at all. 2541:...the cable is the same as the telephone cable that connects handsets to the phone, unfortunately this type of cable and pretty much any type of pre manufactured cable is wired wrong for the Mac Plus. Under no circumstances should you use this cable as you will damage your keyboard and/or your Mac! 2064:

variety of the 8P8C body with an extra tab that prevents it from mating with other connectors; the visual difference compared to the more common 8P8C is subtle, but it is a different connector. The original RJ45S keyed 8P2C modular connector, obsolete today, had pins 5 and 4 wired for tip and ring of

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8P8C connectors are frequently terminated using the T568A or T568B assignments that are defined in ANSI/TIA-568. The drawings to the right show that the copper connections and pairing are the same, the only difference is that the orange and green pairs (colors) are swapped. A cable wired as T568A at

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tools for installing the plug onto a cable are commonly available: Western Electric/Stewart Stamping (WE/SS) and Tyco/AMP. While the two types are similar, the tooling and plug types cannot be interchanged. WE/SS compatible plugs are available from a large number of manufacturers, whereas Tyco/AMP

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to Ethernet hubs). Crossover cables are sometimes still used to connect two computers together without a switch or hub, however, most network interface cards (NIC) in use today implement auto MDI-X to automatically configure themselves based on the type of cable plugged into them. A cable wired the

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An 8P8C modular connection consists of a male plug and a female jack, each with eight equally spaced contacts. On the plug, the contacts are flat metal bars positioned parallel to the connector body. Inside the jack, the contacts are metal spring wires angled away from the insertion interface. When

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UP-2468) which have extra slots beyond their standard contacts, to accommodate the wider jack's outermost contacts without damage. These special plug connectors can be visually identified by carefully looking for the extra slots molded into the plug. The molded plastic bodies of the special plugs

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When not installed, contacts are usually omitted from the outer positions inward, such that the number of contacts is almost always even. The connector body positions with omitted or unconnected contacts are unused for the electrical connection but ensure that the plug fits correctly. For instance,

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Most modular connectors are designed with a latching mechanism that secures the physical connection. As a plug is inserted into a jack, a plastic tab on the plug locks against a ridge in the socket so that the plug cannot be removed without disengaging the tab by pressing it against the plug body.

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The contact positions are numbered sequentially starting from 1. When viewed head-on with the retention mechanism on the bottom, jacks will have contact position number 1 on the left and plugs will have it on the right. Contacts are numbered by the contact position. For example, on a six-position,

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for use with telephones commonly use a 4P4C connector. The two center pins are commonly used for the receiver, and the outer pins connect the transmitter so that a reversal of conductors between the ends of a cord does not affect the signal routing. This may differ for other equipment, including

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8P8C connectors are commonly used in computer networking applications, where interconnecting cables are terminated at each end with an 8P8C modular plug wired according to TIA/EIA standards. Most wired Ethernet communications are carried over Category 5e or Category 6 cable terminated with 8P8C

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is used at the other end to connect to a service provider interface. Older base units may accommodate the additional connectors of TAE (E, W, a2, b2) and may feature non-RJ standard sockets that can be connected directly to TAE plugs. Further, flat DIN 47100 cables typically place the wires in

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In the powered version of the RJ11 interface, pins 2 and 5 (black and yellow) may carry low-voltage AC or DC power. While the telephone line on pins 3 and 4 (red and green) supplies enough power for most telephone terminals, old telephone terminals with incandescent lights, such as the Western

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A crimping die-set looks similar to an 8P8C jack, except for the eight teeth lining the top portion of the die. When the tool is operated, the die compresses around the 8P8C plug. As the die compresses, these teeth force the plug contacts into the conductors of the cable being terminated. The

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The original RJ45S was intended for high-speed modems and is obsolete. The RJ45S jack mates with a keyed 8P2C modular plug, and has pins 4 and 5 (the middle positions) wired for the ring and tip conductors of a single telephone line and pins 7 and 8 shorting a programming resistor. This is a

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use 4P4C connectors to connect the keyboard to the main computer housing. The connector provides power to the keyboard on the outer two contacts and receives data signals on the inner pair. The cable between the computer and the keyboard is a coiled cord with an appearance very similar to a

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Although a narrower 4-pin and 6-pin plug fits into the wider 8-pin jack and makes a connection with the available contacts on the plug, because the body of the smaller connector may stress the remaining contacts, the smaller connector can potentially damage the springs of the larger jack.

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The dimensions of modular connectors are such that a narrower plug can be inserted into a wider jack that has more positions than the plug, leaving the jack's outermost contacts unconnected. The height of the plug's insertion area is 0.260 inches (6.60 mm) and the contacts are

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signals. While this allows an RJ11 plug to connect, it may damage the modular jack; an approved converter prevents damage. In landline telephony, an 8P8C jack is used at the point a line enters the building to allow the line to be broken to insert automatic dialing equipment, including

202:(1975), followed by other improvements, were the basis for the modular molded-plastic connectors that became commonplace for telephone cords by the 1980s. In 1976, these connectors were standardized nationally in the United States by the Registration Interface program of the 2618:

The RJ (registered jack) prefix is one of the most widely (and incorrectly) used prefixes in the computer industry; nearly everyone, including people working for cabling companies, is guilty of referring to an eight-position modular jack (sometimes called an 8P8C) as an

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of performance. The physical dimensions of the male and female connectors are specified in ANSI/TIA-1096-A and ISO-8877 standards and normally wired to the T568A and T568B pinouts specified in the ANSI/TIA-568 standard to be compatible with both telephone and Ethernet.

1523:/TIA-1096-A and international standard ISO-8877. This standard does not use the short term 8P8C and covers more than just 8P8C modular connectors, but the 8P8C modular connector type is the eight-position connector type described therein, with eight contacts installed. 376:, meaning their dimensions are intentionally non-standard, preventing connections with connectors of standard dimensions. The means of indexing may be non-standard cross-sectional dimensions or shapes, retention mechanism dimensions or configuration. For example, a 1506:

Telephone installers who wired RJ45S modem jacks or RJ61X telephone jacks were familiar with the pin assignments of the standard. However, the standard un-keyed modular connectors became ubiquitous for computer networking and informally inherited the name

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Termination of cables with modular connectors is similar across the various number of positions and contacts in the plug. The crimping tool contains a die that is often exchangeable and is closely matched to the shape and pin count of the modular plug.

519: 2584:: The 8-pin modular jack is sometimes referred to as an "RJ-45", because the connector/jack components are the same. However, RJ-45 actually applies to a special purpose jack configuration that is not used in LAN or standard telephone wiring. 665:

non-powered registered jacks, respectively (and 6P4C and 6P6C for powered RJ11 and RJ14, power being delivered on the outer pairs). These interfaces use the same six-position modular connector body but have different numbers of pins installed.

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60603 specifies in parts 7-1, 7-2, 7-4, 7-5, and 7-7 not only the same physical dimensions but also high-frequency performance requirements for shielded and unshielded versions of this connector for carrying frequencies up to 100, 250 and

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Modular connectors are manufactured in four sizes, with four, six, eight, and ten positions. The insulating plastic bodies of 4P and 6P connectors have different widths, whereas 8P or 10P connectors share an even larger body width.

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ISO/IEC 8877, EN 28877: Information Technology—Telecommunications and Information Exchange between Systems—Interface Connector and Contact Assignments for ISDN Basic Access Interface Located at Reference Points S and

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While the old solid color code was well established for pair 1 and usually pair 2, there are several conflicting conventions for pair 3 (and sometimes even pair 2). The colors shown above were taken from a vendor of

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WE/SS and Tyco/AMP 8P8C plugs have different spacings for the cable strain relief. Using a WE/SS 8P8C crimp die set on a Tyco/AMP 8P8C plug crushes the top of the connector and damages the crimp die set, and vice

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The body of a 6P6C or 4P4C plug typically projects out by more than one millimeter further than the contacts and presses the outermost contacts of the larger connector further than if a full-size connector were

510:-to-modular adapters are typically shipped with the D-sub contacts (pins or sockets) terminated but not inserted into the connector body so that the D-sub-to-modular contact pairing can be assigned as needed. 1295:

use white for pair 3 tip but some vendors' cable may substitute orange for white. At least one other vendor of flat 8-conductor cable uses the sequence blue, orange, black, red, green, yellow, brown and

689:, and the other two contact positions may be unused or provide low-voltage power for night light or other features on the telephone set. In some installations, an extra contact was also required for the 2772: 90:

Accordingly, various electronic interface specifications exist for applications using modular connectors, which prescribe physical characteristics and assign electrical signals to their contacts.

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The traditional 8-contact connector, which is called Western Plug, 8PMJ (8-position modular jack), 8P8C (8 position 8 conductor), or somewhat incorrectly RJ-45, is used widely in SCS practice.

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IEC 60603-7-4: Connectors for electronic equipment: Part 7-4: Detail specification for 8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to 250 MHz

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IEC 60603-7-2: Connectors for electronic equipment: Part 7-2: Detail specification for 8-way, unshielded, free and fixed connectors, for data transmissions with frequencies up to 100 MHz

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IEC 60603-7-7: Connectors for electronic equipment: Part 7-7: Detail specification for 8-way, shielded, free and fixed connectors, for data transmissions with frequencies up to 600 MHz

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IEC 60603-7-5: Connectors for electronic equipment: Part 7-5: Detail specification for 8-way, shielded, free and fixed connectors, for data transmissions with frequencies up to 250 MHz

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originally referred to a specific wiring configuration of an 8P8C connector. The original telephone-system-standard RJ45 plug has a key that excludes insertion in an un-keyed 8P8C socket.

2956: 1393:(or ISO/IEC 15018 for home networks) are widely used for both computer networking and analog telephony. These standards specify the T568A or T568B wiring arrangements compatible with 180:

stores in the early 1970s. For this purpose, Illinois Bell started installing modular telephone sets on a limited scale in June 1972. The patents by Edwin C. Hardesty and coworkers,

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transceivers. Frequently the pinout is different, usually mirrored (i.e. what would be pins 1 to 8 in the ANSI/TIA-568 standard might be pins 8 to 1 in the radio and its manual).

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The shape and dimensions of an 8P8C modular connector are specified for US telephone applications by the Administrative Council for Terminal Attachment (ACTA) in national standard

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inexpensive telephone cords often have connectors with six positions and four contacts, to which are attached just two wires, carrying only line 1 from a one-, two-, or three-line

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IEC 60603-7-1: Connectors for electronic equipment: Part 7-1: Detail specification for 8-way, shielded free and fixed connectors with common mating features, with assessed quality

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telephone. Driven by demand for multiple sets in residences with various lengths of cords, the Bell System introduced customer-connectable part kits and telephones, sold through

254:, a plastic covering over the tab and body, to prevent the latching tab from hooking into other cords or edges, which may cause excessive bending or breaking of the tab. Such 71:

telephone sets in the 1960s, and similar types found use for simple interconnection of customer-provided telephone subscriber premises equipment to the telephone network. The

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Modular connectors are designated using two numbers that represent the maximum number of contact positions and the number of installed contacts, with each number followed by

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is a connector having six positions and two installed contacts. Alternate designations omit the letters while separating the position and contact quantities with either an

144:(PSTN). It is common to use a registered jack number to refer to the physical connector itself; for instance, the regular 8P8C modular connector type is often labeled 705:

The pins of the 6P6C connector are numbered 1 to 6, counting left to right when holding the connector tab side down with the opening for the cable facing the viewer.

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This handset connector is not a registered jack, because it was not intended to connect directly to telephone lines. However, it is often referred to as

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the plug is mated with the jack, the contacts meet and create an electrical connection. The spring force of the jack contacts ensures a good interface.

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Cables sold as RJ11 often actually use 6P4C connectors (six positions, four contacts) and RJ14 wiring – four wires running to a central

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cable is used to connect two computers with auto MDI-X capable NICs, one NIC will configure itself to swap the functions of its Tx and Rx wire pairs.

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ANSI/TIA-1096-A: Telecommunications telephone terminal equipment connector requirements for connection of terminal equipment to the telephone network

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crimper may also permanently deform part of the plastic plug body in such a way that it grips the outer sheath of the cable for secure fastening and

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RJ11 is a physical interface often used for terminating single telephone lines. RJ14 is similar, but for two lines, and RJ25 is for three lines.

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The first types of small modular telephone connectors were created by AT&T in the mid-1960s for the plug-in handset and line cords of the

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standard. For other applications, standardization may be lacking; for example, multiple conventions exist for the use of 8P8C connectors in

2011:/TIA-561 standard describes the use of 8P8C connectors for RS-232 serial interfaces. This application is common as a console interface for 617:

Modular connectors are often used for data links, such as serial line connections, because of their compact dimensions. For example, some

2141: 206:(FCC), which designated a series of Registered Jack (RJ) specifications for interconnection of customer-premises equipment to the PSTN. 2965: 1348:

plugs and sockets are typically only used to connect the telephone cord to the phone base unit, whereas the mechanically different

1330: 2588:: Modular jacks are often referred to as "RJ-45" jacks. This is not really the correct moniker, although it is in very common use. 1971:

tolerances as needed. Shielded plugs are more expensive and require shielded cable, but have a lower attenuation, and may reduce

494:) of modular connectors vary by application. Telephone network connections are standardized by registered jack designations, and 2611: 621:

set-top boxes include a 4P4C data port with an adapter cord to connect to a computer serial port to control the set-top box.

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specified a similar, but modified, 8P8C modular connector. Similarly, various six-position modular connectors may be called

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designations describe the signals and wiring used for voice and data communication at customer-facing interfaces of the

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connector, although this was never a standard registered jack. The 10P10C has 10 contact positions and 10 contacts.

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Semenov, Andrey B.; Strizhakov, Stanislav K.; Suncheley, Igor R. (October 3, 2002). "Electrical Cable Connectors".

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flat 8-conductor phone cable that claims to be standard. 6-pair solid (old) bellwire cables previously used by the

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Telephone terminal equipment: Technical requirements for connection of terminal equipment to the telephone network

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two-contact plug, where the outermost four positions do not have contacts, the two contacts are numbered 3 and 4.

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US government documents define registered jack applications of modular connectors for telecommunications. See

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Where building network and telephone wiring is pre-installed, the center (blue) pair is often used to carry

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plugged into a nearby power outlet which potentially even supplies power to all of the jacks in the house.

875: 3294: 1370:, need more power than the phone line can supply. Typically, the power on pins 2 and 5 is supplied by an 791: 307: 2814: 2702: 1421:

An 8P8C female modular connector with a key cut (the connector used in the obsolete RJ45S specification)

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modular plugs. The connector is also used in other telecommunications connections, including ISDN and

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cords are usually constructed by installing the protective boot before the modular plug is crimped.

3213: 3207: 3118: 2768: 2478: 1569: 1260: 115: 2931: (archived 2013-02-15) Catalog page showing the difference between solid and stranded contacts 1309:. The scheme shown here is the correct color code for interfacing with the RJ connector standards. 3006: 2992: 2093: 1458: 1117: 884: 610: 357: 123: 2797: 2052:

The physical connector is standardized as the IEC 60603-7 8P8C modular connector with different

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capabilities, a crossover cable was needed to interconnect similar network equipment (such as

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ascending order. When used directly with 6P4C plugs, the color coding may be undetermined.

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However, with German domestic telephone equipment, and that in some neighboring countries,

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The standard orientation for installing a jack in a vertical surface is with the tab down.

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Both types of 8P8C plugs are available in shielded and unshielded varieties for different

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An 8P8C modular plug. This is the common crimp-type plug, of the same kind pictured above

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Left to right, modular connectors: 8P8C plug, 6P6C plug, 6P4C plug, 4P4C plug, 6P6C jack.

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The most common uses of the 10P10C connector are in proprietary data transfer systems.

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arose from its original use in modular wiring components of telephone equipment by the

75:(FCC) mandated in 1976 an interface registration system, in which they became known as 902: 3446: 2895: 2640: 2607: 2512: 2482: 2430: 2372: 2024: 2012: 1405: 970: 40: 2060:

A similar standard jack once used for modem and data connections, the RJ45S, used a

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4-position and 4-contact connectors are used primarily for telephone handset cords.

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suffix indicates this is a wiring configuration supporting a single telephone line.

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Pin numbering on plug face. Connected pins on plug and jack have the same number.

1216: 1207: 1074: 988: 3176: 3165: 3153: 3125: 2928: 2731:"Stewart Connector 937-SP-3088 – Eight conductor/eight position line cord module" 2145: 2089: 2001: 1930: 1918: 1854: 1690: 1472: 1410: 577: 353: 137: 76: 45: 2072:. An installer can wire the jack to any pin-out or use it as part of a generic 1778: 1766: 3113: 3000: 2688: 2016: 598: 594: 590: 80: 2030:

8P8C modular connectors are also commonly used as a microphone connectors for

1964:. Both types of modular plugs can be mated with a standard 8P8C modular jack. 641:

positions and the actual number of contacts installed in these positions. The

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one end and wired as T568B at the other end (Tx and Rx pairs reversed) is an

1390: 1349: 538:) connector is the standard modular connector used on both ends of telephone 479: 2736:. Glen Rock, Pennsylvania: Bel Stewart Connector. 2006-02-01. Archived from 465: 3419: 1577: 1450: 1434: 1386: 736: 719: 686: 682: 499: 3324: 2762:"Tyco/AMP 5-554739-2 – Modular plug assembly, 8 position, flat oval cable" 2065:

a single telephone line and pins 7 and 8 shorting a programming resistor.

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cellular handset to its (separate) base unit; this usage is now obsolete.

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Established in the 1950s for polyethylene-insulated conductor (PIC) cable.

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is a similar registered jack for four lines, but uses an 8P8C connector.

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8P8C plug with contacts for solid wire (left) and stranded wire (right)

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Molex #449150001, Modular Plug, Category 6, Long Body, Unshielded, 8/8

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Molex #449150001, Modular Plug, Category 6, Long Body, Unshielded, 8/8

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In analog mobile telephony, the 8P8C connector was used to connect an

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Wired telephone that uses 4P4C connectors for the coiled handset cord.

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for cords and cables of electronic devices and appliances, such as in

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Electrical connector commonly used in telephone and computer networks

2865:(connector diagram and applications), Pinouts guide, archived from 2192: 2068:

Electronics catalogs commonly advertise 8P8C modular connectors as

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Internally, the contacts in the plugs have sharp prongs that, when

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Contacts for solid wire (top left) and stranded wire (bottom right)

173: 84: 2112: 1479:: Generic 8P8C (or 8PMJ, 8-position modular jack) male connector. 1305:

This color scheme originates in the (withdrawn) national standard

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Modular connectors were originally developed for use on specific

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Cabling: The Complete Guide to Copper and Fiber-Optic Networking

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Oliviero, Andrew; Woodward, Bill (July 20, 2009). "Connectors".

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to prevent accidental interchange of data and telephone cables.

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Special modular plugs have been manufactured (for example, the

2318:, Bell System Practices, Section 463-400-100 Issue 1, May 1976 1433:) connector is a modular connector commonly used to terminate 637:

Modular plugs are described by the maximum number of physical

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modular connectors are probably best known for their use as

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A modular plug crimping tool with exchangeable crimping dies

3276: 3248: 3242: 3055: 2209: 2204: 2096:(UTP) cable with differently wired connectors at each end. 1520: 1345: 670: 662: 658: 654: 127: 119: 2630: 2571: 2305:, Bell Laboratories Record, Vol. 52(8) p. 238 (Sept. 1974) 482:. These actions permanently attach the plug to the cable. 2566:

Each end of a handset cord is wired opposite the other...

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Connection of Terminal Equipment to the Telephone Network

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because the registered jack standard of the similar name

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Registration Interface—Selection and General Information

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Unshielded and shielded twisted pair cabling standards

2656: 518: 1445:, registered jacks and other telephone applications, 2292:, Bell Laboratories Record 44(1) p.14 (January 1966) 1592:, because no pin/pair assignments are swapped. If a 685:. Two of its six possible contact positions connect 2473:BICSI (October 7, 2002). "Background Information". 388:Modular connector typical dimensions (millimeters) 156:. Likewise, the 4P4C connector is sometimes called 64:, telecommunication equipment, and audio headsets. 2080:using 8P8C patch panels for both phone and data. 3433: 2597: 241: 2771:: Tyco Electronics. 2008-03-31. Archived from 2431:"RJ-45 Plug for Proposed CAT 6 Specifications" 2373:"RJ-45 Plug for Proposed CAT 6 Specifications" 1243: 380:using an offset latching tab was developed by 3310: 2950: 2402:"Six Conductor/Six Position Line Cord Module" 2344:"Six Conductor/Six Position Line Cord Module" 1320:"(nl) Support document for the 'PTT norm 88'" 1299: 846:6P6C connector showing the location of pin 1 2175:Registered jack § History and authority 1457:standards, and other applications involving 1312: 164:though no such official designations exist. 98:Modular connectors are often referred to as 2836:"RJ50 - Everything you need to know !" 2284: 2282: 250:The modular plug is often installed with a 3317: 3303: 2957: 2943: 2894:(3rd ed.), McGraw-Hill Professional, 2687:, Ontario, California: HVS, archived from 2333:, Section 68.502 superseded by T1.TR5-1999 2321: 1950: 1356: 1280: 2966:Audio and video interfaces and connectors 1441:. These connectors are commonly used for 522:4P4C modular connector on a handset cord. 2303:Telephone Sets Go Mod (Modular, That Is) 2279: 2124:connector is commonly referred to as an 2111: 2103: 1558: 1550: 1471: 1416: 1404: 628: 525: 517: 464: 360:. Cables have either solid or stranded ( 269: 39: 31: 2889: 2662: 2577: 2546: 2475:Telecommunications Cabling Installation 2108:The pin arrangement for a 10P10C socket 1670: 14: 3434: 3235: 2677: 2675: 1572:. Before the widespread acceptance of 542:cords and is therefore often called a 3298: 2938: 2472: 2201:- retractable 8P8C Ethernet connector 2092:uses two 8-position connectors and a 1526:For data communication applications ( 1378:Compatibility with structured cabling 367: 322:Insulation displacement contact types 2890:Trulove, James (December 19, 2005), 2195:– ruggedized 8P8C Ethernet connector 1250: 265: 2672: 2083: 274:8P8C modular plug contact numbering 24: 1960:plugs are produced exclusively by 1514: 1465:, and multi-conductor flat cable. 534:The four-position four-conductor ( 48:onto a cable (with molded sleeve). 25: 3473: 2909: 1487:Although commonly referred to as 564: 204:Federal Communications Commission 142:public switched telephone network 73:Federal Communications Commission 2076:system such as ISO/IEC 15018 or 1929: 1917: 1891: 1879: 1853: 1841: 1815: 1803: 1777: 1765: 1739: 1727: 1701: 1689: 1671: 1653: 1641: 1563:T568B wiring, defined in TIA-568 1555:T568A wiring, defined in TIA-568 1483:: RJ45 male connector (with key) 1336:from the original on 2016-10-08. 1224: 1215: 1206: 1197: 1188: 1152: 1143: 1134: 1125: 1116: 1107: 1073: 1064: 1055: 1046: 1037: 1028: 996: 987: 978: 969: 960: 951: 919: 910: 901: 892: 883: 874: 840: 826: 817: 808: 799: 790: 569: 340: 328: 118:in the 1960s. This includes the 2883: 2853: 2828: 2807: 2789: 2754: 2723: 2711: 2695: 2624: 2591: 2526: 2498: 2466: 2261:4P4C and 10P10C connectors are 2255: 2245: 2235: 2222: 1982: 1491:in the context of Ethernet and 1449:serial communication using the 506:applications. For this reason, 93: 2452: 2423: 2394: 2365: 2336: 2308: 2295: 1581:same at both ends is called a 676: 633:6P4C crimp-on style connector. 460: 13: 1: 2288:Krumreich C.L., Mosing L.W., 2272: 1409:An 8P8C modular plug not yet 382:Digital Equipment Corporation 286:, respectively. For example, 2582:Designing LAN Wiring Systems 2290:The Evolution of a Telephone 2189:– British equivalent to RJ25 2134: 1973:electromagnetic interference 1955:Two types of 8P8C plugs and 1251:Horn, F. W. (October 1958). 584: 372:Some modular connectors are 242:Latching tab and orientation 7: 2916:How to Make a Network Cable 2533:"Mac Plus Keyboard Cable", 2265:defined in these standards. 2180: 1624:1000BASE-T/10GBASE-T signal 1546: 1453:(formerly TIA/EIA-568) and 700: 100:modular phone jack and plug 10: 3478: 3399:Ethernet over twisted pair 3392:Copper cable certification 2815:"Modular Wiring Reference" 2554:"Direc TV Channel Control" 2148: (archived 2018-09-28) 1621:10BASE-T/100BASE-TX signal 1534:), International Standard 1443:Ethernet over twisted pair 496:Ethernet over twisted pair 167: 124:telephone line connections 3383: 3332: 3228: 3198: 3100: 3093: 3023: 2979: 2972: 2862:10 pin RJ50 (10P10C) male 2667:User Cords and Connectors 2099: 839: 490:The contact assignments ( 485: 209: 2918:, a how-to article from 2769:Harrisburg, Pennsylvania 2704:Modular wiring reference 2633:Structured cable systems 2505:"Apple Macintosh Plus", 2479:McGraw-Hill Professional 2460:"Universal Modular Plug" 2215: 1570:Ethernet crossover cable 1261:Bell Laboratories Record 214:Modular connectors have 116:Western Electric Company 2094:unshielded twisted pair 1951:Types and compatibility 1459:unshielded twisted pair 1400: 1357:Powered version of RJ11 1329:(in Dutch). p. 8. 624: 513: 358:insulation displacement 2987:PC System Design Guide 2117: 2109: 1564: 1556: 1484: 1422: 1414: 634: 531: 523: 470: 275: 49: 37: 2925:Premium Modular Plugs 2719:14.5.1 MDI connectors 2409:Bel-Stewart Connector 2351:Bel-Stewart Connector 2115: 2107: 1562: 1554: 1475: 1463:shielded twisted pair 1420: 1408: 1385:networks adhering to 632: 581:hands-free headsets. 529: 521: 468: 378:Modified Modular Jack 273: 234:are considered to be 222:are considered to be 108:Western jack and plug 43: 35: 3462:Telephone connectors 2580:, pp. 23, 132: 1437:and multi-conductor 1427:8 position 8 contact 1253:"'Even-Count' Cable" 498:is specified by the 58:electrical connector 3457:Networking hardware 3442:Computer connectors 2684:Modular jack wiring 2328:FCC 47 CFR Part 68 2088:A router-to-router 1733:white/orange stripe 1659:white/orange stripe 1368:Trimline telephones 709: 576:Handsets and often 389: 62:computer networking 2228:The often omitted 2118: 2110: 2074:structured cabling 2025:headless computers 1897:white/brown stripe 1885:white/brown stripe 1745:white/green stripe 1647:white/green stripe 1565: 1557: 1532:structured cabling 1485: 1423: 1415: 1383:Structured cabling 708: 635: 532: 524: 471: 387: 368:Interchangeability 276: 50: 38: 3429: 3428: 3406:Modular connector 3292: 3291: 3288: 3287: 3224: 3223: 3089: 3088: 2840:instrumentic.info 2613:978-0-470-47707-6 2586:Work Area Outlets 2013:network equipment 1948: 1947: 1821:white/blue stripe 1809:white/blue stripe 1493:category 5 cables 1239: 1238: 754:Australian colors 695:selective ringers 544:handset connector 446: 445: 266:Size and contacts 112:modular connector 54:modular connector 16:(Redirected from 3469: 3319: 3312: 3305: 3296: 3295: 3233: 3232: 3098: 3097: 2977: 2976: 2959: 2952: 2945: 2936: 2935: 2904: 2877: 2876: 2875: 2874: 2857: 2851: 2850: 2848: 2847: 2832: 2826: 2825: 2823: 2822: 2811: 2805: 2803: 2793: 2787: 2786: 2784: 2783: 2777: 2766: 2758: 2752: 2751: 2749: 2748: 2742: 2735: 2727: 2721: 2715: 2709: 2708: 2699: 2693: 2692: 2679: 2670: 2660: 2654: 2653: 2628: 2622: 2621: 2602:(4th ed.). 2595: 2589: 2575: 2569: 2568: 2560:. Archived from 2550: 2544: 2543: 2530: 2524: 2522: 2521: 2520: 2511:, archived from 2508:My Old Computers 2502: 2496: 2495: 2477:(2nd ed.). 2470: 2464: 2463: 2456: 2450: 2449: 2447: 2445: 2435: 2427: 2421: 2420: 2418: 2416: 2406: 2398: 2392: 2391: 2389: 2387: 2377: 2369: 2363: 2362: 2360: 2358: 2348: 2340: 2334: 2325: 2319: 2312: 2306: 2299: 2293: 2286: 2266: 2259: 2253: 2249: 2243: 2239: 2233: 2226: 2140:ANSI/TIA-968-A: 2084:Crossover cables 1962:Tyco Electronics 1933: 1921: 1895: 1883: 1857: 1845: 1819: 1807: 1781: 1769: 1743: 1731: 1705: 1693: 1675: 1657: 1645: 1603: 1602: 1588:straight-through 1338: 1337: 1335: 1324: 1316: 1310: 1303: 1297: 1284: 1278: 1277: 1275: 1273: 1257: 1247: 1235: 1228: 1219: 1210: 1201: 1192: 1182: 1177: 1156: 1147: 1138: 1129: 1120: 1111: 1098: 1077: 1068: 1059: 1050: 1041: 1032: 1000: 991: 982: 973: 964: 955: 923: 914: 905: 896: 887: 878: 865: 844: 837: 830: 821: 812: 803: 794: 784: 779: 710: 707: 573: 390: 386: 344: 332: 260: 259: 201: 200: 196: 190: 189: 185: 77:registered jacks 21: 3477: 3476: 3472: 3471: 3470: 3468: 3467: 3466: 3432: 3431: 3430: 3425: 3379: 3328: 3323: 3293: 3284: 3229:Video and audio 3220: 3200: 3194: 3085: 3019: 2968: 2963: 2929:Wayback Machine 2912: 2902: 2886: 2881: 2880: 2872: 2870: 2859: 2858: 2854: 2845: 2843: 2834: 2833: 2829: 2820: 2818: 2813: 2812: 2808: 2795: 2794: 2790: 2781: 2779: 2775: 2764: 2760: 2759: 2755: 2746: 2744: 2740: 2733: 2729: 2728: 2724: 2716: 2712: 2701: 2700: 2696: 2681: 2680: 2673: 2665:, p. 219: 2661: 2657: 2647: 2639:. p. 129. 2629: 2625: 2614: 2606:. p. 294. 2596: 2592: 2576: 2572: 2564:on 2008-10-19. 2552: 2551: 2547: 2539:, UK: Megadon, 2532: 2531: 2527: 2518: 2516: 2504: 2503: 2499: 2489: 2471: 2467: 2458: 2457: 2453: 2443: 2441: 2433: 2429: 2428: 2424: 2414: 2412: 2404: 2400: 2399: 2395: 2385: 2383: 2375: 2371: 2370: 2366: 2356: 2354: 2346: 2342: 2341: 2337: 2326: 2322: 2313: 2309: 2300: 2296: 2287: 2280: 2275: 2270: 2269: 2260: 2256: 2250: 2246: 2240: 2236: 2227: 2223: 2218: 2183: 2146:Wayback Machine 2137: 2102: 2090:crossover cable 2086: 2002:intrusion alarm 1985: 1953: 1934: 1922: 1896: 1884: 1858: 1846: 1820: 1808: 1782: 1770: 1744: 1732: 1706: 1694: 1658: 1646: 1549: 1517: 1515:Standardization 1403: 1380: 1359: 1342: 1341: 1333: 1322: 1318: 1317: 1313: 1304: 1300: 1285: 1281: 1271: 1269: 1255: 1248: 1244: 1234:Does not appear 1233: 1229: 1220: 1211: 1202: 1193: 1181:Does not appear 1180: 1176:Does not appear 1175: 1157: 1148: 1139: 1130: 1121: 1112: 1097:Does not appear 1096: 1078: 1069: 1060: 1051: 1042: 1033: 1001: 992: 983: 974: 965: 956: 924: 915: 906: 897: 888: 879: 864:Does not appear 863: 845: 836:Does not appear 835: 831: 822: 813: 804: 795: 783:Does not appear 782: 778:Does not appear 777: 703: 693:connection for 679: 627: 605:as well as the 587: 567: 516: 488: 463: 370: 348: 345: 336: 333: 324: 268: 257: 256: 244: 212: 198: 192: 187: 181: 170: 138:Registered jack 96: 28: 23: 22: 15: 12: 11: 5: 3475: 3465: 3464: 3459: 3454: 3449: 3444: 3427: 3426: 3424: 3423: 3416: 3409: 3402: 3395: 3388: 3384: 3381: 3380: 3378: 3377: 3372: 3367: 3362: 3357: 3352: 3347: 3342: 3336: 3334: 3330: 3329: 3322: 3321: 3314: 3307: 3299: 3290: 3289: 3286: 3285: 3283: 3282: 3281: 3280: 3268: 3267: 3266: 3254: 3253: 3252: 3239: 3237: 3230: 3226: 3225: 3222: 3221: 3219: 3218: 3217: 3216: 3204: 3202: 3196: 3195: 3193: 3192: 3191: 3190: 3170: 3169: 3168: 3163: 3151: 3150: 3149: 3137: 3136: 3135: 3123: 3122: 3121: 3116: 3104: 3102: 3095: 3091: 3090: 3087: 3086: 3084: 3083: 3082: 3081: 3076: 3070: 3065: 3053: 3052: 3051: 3046: 3040: 3027: 3025: 3021: 3020: 3018: 3017: 3016: 3015: 3010: 3001:Balanced audio 2998: 2997: 2996: 2983: 2981: 2974: 2970: 2969: 2962: 2961: 2954: 2947: 2939: 2933: 2932: 2922: 2911: 2910:External links 2908: 2907: 2906: 2900: 2885: 2882: 2879: 2878: 2852: 2827: 2806: 2788: 2753: 2722: 2710: 2694: 2671: 2655: 2645: 2623: 2612: 2590: 2570: 2545: 2525: 2497: 2487: 2481:. p. 88. 2465: 2451: 2422: 2393: 2364: 2335: 2320: 2307: 2294: 2277: 2276: 2274: 2271: 2268: 2267: 2264: 2254: 2244: 2234: 2220: 2219: 2217: 2214: 2213: 2212: 2207: 2202: 2196: 2190: 2182: 2179: 2178: 2177: 2171: 2167: 2164: 2161: 2158: 2155: 2152: 2149: 2136: 2133: 2101: 2098: 2085: 2082: 1984: 1981: 1952: 1949: 1946: 1945: 1942: 1939: 1936: 1927: 1924: 1915: 1912: 1908: 1907: 1904: 1901: 1898: 1889: 1886: 1877: 1874: 1870: 1869: 1866: 1863: 1860: 1851: 1848: 1839: 1836: 1832: 1831: 1828: 1825: 1822: 1813: 1810: 1801: 1798: 1794: 1793: 1790: 1787: 1784: 1775: 1772: 1763: 1760: 1756: 1755: 1752: 1749: 1746: 1737: 1734: 1725: 1722: 1718: 1717: 1714: 1711: 1708: 1699: 1696: 1687: 1684: 1680: 1679: 1669: 1666: 1663: 1660: 1651: 1648: 1639: 1636: 1632: 1631: 1628: 1625: 1622: 1619: 1616: 1613: 1610: 1607: 1548: 1545: 1516: 1513: 1402: 1399: 1379: 1376: 1358: 1355: 1340: 1339: 1311: 1298: 1279: 1241: 1240: 1237: 1236: 1231: 1222: 1213: 1204: 1195: 1186: 1183: 1178: 1173: 1170: 1167: 1164: 1160: 1159: 1150: 1141: 1132: 1123: 1114: 1105: 1102: 1099: 1094: 1091: 1088: 1085: 1081: 1080: 1071: 1062: 1053: 1044: 1035: 1026: 1023: 1020: 1017: 1014: 1011: 1008: 1004: 1003: 994: 985: 976: 967: 958: 949: 946: 943: 940: 937: 934: 931: 927: 926: 917: 908: 899: 890: 881: 872: 869: 866: 861: 858: 855: 852: 848: 847: 838: 833: 824: 815: 806: 797: 788: 785: 780: 775: 772: 769: 766: 762: 761: 758: 755: 752: 749: 746: 740: 734: 731: 728: 725: 722: 717: 714: 702: 699: 678: 675: 626: 623: 599:Macintosh Plus 595:Macintosh 512K 591:Macintosh 128K 586: 583: 566: 565:Handset wiring 563: 515: 512: 487: 484: 462: 459: 444: 443: 440: 437: 434: 430: 429: 426: 423: 420: 416: 415: 413: 410: 408: 404: 403: 400: 397: 394: 369: 366: 350: 349: 346: 339: 337: 334: 327: 323: 320: 298:) or a slash ( 267: 264: 243: 240: 211: 208: 169: 166: 95: 92: 26: 9: 6: 4: 3: 2: 3474: 3463: 3460: 3458: 3455: 3453: 3450: 3448: 3445: 3443: 3440: 3439: 3437: 3422: 3421: 3417: 3415: 3414: 3410: 3408: 3407: 3403: 3401: 3400: 3396: 3394: 3393: 3389: 3386: 3385: 3382: 3376: 3375:Cat 8/8.1/8.2 3373: 3371: 3368: 3366: 3363: 3361: 3358: 3356: 3353: 3351: 3348: 3346: 3343: 3341: 3338: 3337: 3335: 3331: 3327: 3320: 3315: 3313: 3308: 3306: 3301: 3300: 3297: 3278: 3274: 3273: 3272: 3269: 3264: 3260: 3259: 3258: 3255: 3250: 3246: 3245: 3244: 3241: 3240: 3238: 3234: 3231: 3227: 3215: 3211: 3210: 3209: 3206: 3205: 3203: 3197: 3188: 3184: 3180: 3179: 3178: 3174: 3171: 3167: 3164: 3161: 3157: 3156: 3155: 3152: 3147: 3143: 3142: 3141: 3138: 3133: 3129: 3128: 3127: 3124: 3120: 3117: 3115: 3111: 3110: 3109: 3106: 3105: 3103: 3099: 3096: 3092: 3080: 3077: 3074: 3071: 3069: 3066: 3064: 3060: 3059: 3057: 3054: 3050: 3047: 3044: 3041: 3038: 3034: 3033: 3032: 3029: 3028: 3026: 3022: 3014: 3011: 3008: 3004: 3003: 3002: 2999: 2994: 2990: 2989: 2988: 2985: 2984: 2982: 2978: 2975: 2971: 2967: 2960: 2955: 2953: 2948: 2946: 2941: 2940: 2937: 2930: 2926: 2923: 2921: 2917: 2914: 2913: 2903: 2901:0-07-145975-8 2897: 2893: 2888: 2887: 2869:on 2013-05-18 2868: 2864: 2863: 2856: 2841: 2837: 2831: 2816: 2810: 2801: 2800: 2792: 2778:on 2011-07-24 2774: 2770: 2763: 2757: 2743:on 2018-04-18 2739: 2732: 2726: 2720: 2714: 2706: 2705: 2698: 2691:on 2010-02-08 2690: 2686: 2685: 2678: 2676: 2668: 2664: 2659: 2652: 2648: 2646:3-540-43000-8 2642: 2638: 2634: 2627: 2620: 2615: 2609: 2605: 2601: 2594: 2587: 2583: 2579: 2574: 2567: 2563: 2559: 2555: 2549: 2542: 2538: 2537: 2529: 2515:on 2009-02-27 2514: 2510: 2509: 2501: 2494: 2490: 2488:0-07-140979-3 2484: 2480: 2476: 2469: 2461: 2455: 2439: 2432: 2426: 2410: 2403: 2397: 2381: 2374: 2368: 2352: 2345: 2339: 2332: 2331: 2324: 2317: 2311: 2304: 2301:Walden S.W., 2298: 2291: 2285: 2283: 2278: 2262: 2258: 2248: 2238: 2231: 2225: 2221: 2211: 2208: 2206: 2203: 2200: 2197: 2194: 2191: 2188: 2185: 2184: 2176: 2172: 2168: 2165: 2162: 2159: 2156: 2153: 2150: 2147: 2143: 2139: 2138: 2132: 2129: 2127: 2123: 2116:A 10P10C plug 2114: 2106: 2097: 2095: 2091: 2081: 2079: 2078:ISO/IEC 11801 2075: 2071: 2066: 2063: 2058: 2055: 2050: 2048: 2043: 2041: 2040:amateur radio 2037: 2033: 2028: 2026: 2022: 2018: 2014: 2010: 2005: 2003: 1998: 1993: 1991: 1980: 1976: 1974: 1970: 1965: 1963: 1958: 1943: 1940: 1937: 1932: 1928: 1925: 1920: 1916: 1913: 1910: 1909: 1905: 1902: 1899: 1894: 1890: 1887: 1882: 1878: 1875: 1872: 1871: 1867: 1864: 1861: 1856: 1852: 1849: 1844: 1840: 1837: 1834: 1833: 1829: 1826: 1823: 1818: 1814: 1811: 1806: 1802: 1799: 1796: 1795: 1791: 1788: 1785: 1780: 1776: 1773: 1768: 1764: 1761: 1758: 1757: 1753: 1750: 1747: 1742: 1738: 1735: 1730: 1726: 1723: 1720: 1719: 1715: 1712: 1709: 1704: 1700: 1697: 1692: 1688: 1685: 1682: 1681: 1678: 1674: 1667: 1664: 1661: 1656: 1652: 1649: 1644: 1640: 1637: 1634: 1633: 1629: 1626: 1623: 1620: 1617: 1614: 1611: 1608: 1605: 1604: 1601: 1599: 1595: 1591: 1589: 1585: 1579: 1578:Ethernet hubs 1575: 1571: 1561: 1553: 1544: 1542: 1537: 1533: 1529: 1524: 1522: 1512: 1510: 1504: 1500: 1498: 1494: 1490: 1482: 1478: 1474: 1470: 1466: 1464: 1460: 1456: 1452: 1448: 1444: 1440: 1436: 1432: 1428: 1419: 1412: 1407: 1398: 1396: 1392: 1391:ISO/IEC 11801 1388: 1384: 1375: 1373: 1369: 1365: 1354: 1351: 1350:TAE connector 1347: 1332: 1328: 1321: 1315: 1308: 1302: 1294: 1290: 1283: 1267: 1263: 1262: 1254: 1246: 1242: 1232: 1227: 1223: 1218: 1214: 1209: 1205: 1200: 1196: 1191: 1187: 1184: 1179: 1174: 1171: 1168: 1165: 1162: 1161: 1155: 1151: 1146: 1142: 1137: 1133: 1128: 1124: 1122:orange/white 1119: 1115: 1110: 1106: 1103: 1100: 1095: 1092: 1089: 1086: 1083: 1082: 1076: 1072: 1067: 1063: 1058: 1054: 1049: 1045: 1040: 1036: 1031: 1027: 1024: 1021: 1018: 1015: 1012: 1009: 1006: 1005: 999: 995: 990: 986: 981: 977: 972: 968: 963: 959: 954: 950: 947: 944: 941: 938: 935: 932: 929: 928: 922: 918: 913: 909: 904: 900: 895: 891: 889:white/orange 886: 882: 880:white/orange 877: 873: 870: 867: 862: 859: 856: 853: 850: 849: 843: 834: 829: 825: 820: 816: 811: 807: 802: 798: 793: 789: 786: 781: 776: 773: 770: 767: 764: 763: 759: 756: 753: 751:German colors 750: 747: 744: 741: 738: 735: 732: 729: 726: 723: 721: 718: 715: 712: 711: 706: 698: 696: 692: 688: 684: 674: 672: 667: 664: 660: 656: 652: 648: 644: 640: 631: 622: 620: 615: 612: 608: 604: 600: 596: 592: 582: 579: 574: 572: 562: 560: 556: 552: 547: 545: 541: 537: 528: 520: 511: 509: 505: 501: 497: 493: 483: 481: 480:strain relief 475: 467: 458: 455: 450: 441: 438: 435: 432: 431: 427: 424: 421: 418: 417: 414: 411: 409: 406: 405: 401: 398: 395: 392: 391: 385: 383: 379: 375: 365: 363: 359: 355: 343: 338: 331: 326: 325: 319: 315: 311: 309: 303: 301: 297: 293: 289: 285: 281: 272: 263: 261: 253: 248: 239: 237: 233: 229: 225: 221: 217: 207: 205: 195: 184: 179: 175: 165: 163: 159: 155: 151: 147: 143: 139: 135: 133: 129: 125: 121: 117: 113: 109: 105: 101: 91: 88: 86: 82: 78: 74: 70: 65: 63: 59: 56:is a type of 55: 47: 42: 34: 30: 19: 3420:Twisted pair 3418: 3411: 3405: 3404: 3397: 3390: 3275:connectors: 3261:connectors: 3247:connectors: 3212:connectors: 3199:Digital and 3181:connectors: 3158:connectors: 3144:connectors: 3130:connectors: 3112:connectors: 3061:connectors: 3035:connectors: 3009:6.53 mm 3005:connectors: 2991:connectors: 2891: 2884:Bibliography 2871:, retrieved 2867:the original 2861: 2855: 2844:. 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