Sourcingmap Phone 4P4C RJ9 Telephone Cable End Adapter Connector Head 22pcs Clear

Product Information

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. Trulove 2005, p.219: User Cords and Connectors: 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. a b Krumreich C.L., Mosing L.W., The Evolution of a Telephone, Bell Laboratories Record 44(1) p.14 (January 1966)

Some telephones such as the Western Electric Princess and Trimline telephone models require additional power (~6 V AC) for operation of the incandescent dial light. This power is delivered to the telephone set from a transformer by the second wire pair (pins 2 and 5) of the 6P4C connector. Handsets and often headsets 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 hands-free headsets. RJ11 uses a standard 6P2C connector for a standard telephone connection. It only uses a 6P4C connector when low voltage power is required to send to the indicator lamp of the telephone. The physical connector is standardized as the IEC 60603-7 8P8C modular connector with different categories 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.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 Tyco/AMP 5-554739-2 – Modular plug assembly, 8 position, flat oval cable" (PDF). Harrisburg, Pennsylvania: Tyco Electronics. 2008-03-31. Archived from the original (PDF) on 2011-07-24 . Retrieved 2009-09-10. For data communication applications ( LAN, structured cabling), International Standard IEC 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 600 MHz. The micro ribbon connector, first made by Amphenol, that is used in the RJ21 interface, has also been used to connect Ethernet ports in bulk from a switch with 50-pin ports to a Cat-5 rated patch panel, or between two patch panels. A cable with a 50-pin connector on one end can support six fully wired 8P8C connectors or Ethernet ports on a patch panel with one spare pair. Alternatively, only the necessary pairs for 10/100 Ethernet can be wired allowing twelve Ethernet ports with a single spare pair.

The critical fact to know about RJ11 is That RJ 11 is most regularly utilized for phone and modem associations and has two arrangement types. a b c "ACTA Documents Main - Administrative Council for Terminal Attachments". www.part68.org. Archived from the original on 10 November 2010 . Retrieved 9 May 2018. Polycom utilizes this connector on their Conference Link bus to connect their HDX and Group Series codecs and microphones to their SoundStructure audio mixers, although pins 1 and 10 are not used. [ citation needed]The Rj9 has a different shape than the Rj11. It is rectangular, while the Rj11 is a square-shaped connector. Motorola uses the 10-pin connector as a microphone connector in several of their mobile radio product lines. [ citation needed] The 10-pin connector is also used by Demag Cranes AG in some pendant connections. National Instruments is also using the 10p10c connector for their NI 9237. [27] FCC 47 CFR Part 68 Connection of Terminal Equipment to the Telephone Network, Section 68.502 superseded by T1.TR5-1999 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 250MHz