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In computer networking hardware, ARJ45 (Augmented Registered Jack 45) is an electronic connector for very high speed applications, such as Class FA installations as defined by the standard ISO/IEC 11801 and 10, 40 and 100 Gigabit Ethernet transmission copper cabling.
The connector operates in the frequency spectrum between 600 MHz to 5 GHz with shielded twisted pair and twinax cables. ARJ45 utilizes an internal system of Faraday cages to reduce cross talk to 35 dB or better at 5 GHz. Its performance up to 1000 MHz corresponds to category 7A connecting hardware.
Variants include ARJ45 HS, an 8-contact connector, and ARJ45 HD, a 12-contact connector, equivalent to the GG45 with a switch in the jack that activates the alternative pin locations when a Cat7a plug is inserted.
- IEC Webstore: International standard IEC 61076-3-110 Connectors for electronic equipment - Product requirements - Part 3-110: Rectangular connectors — Detail specification for shielded, free and fixed connectors for data transmissions with frequencies up to 1000MHz, Edition 1.0, December 2007; ( (English) / (French) "Preview" (PDF). (217 KB))
- Ziobron, Betsy (November 1, 2008). "Twisted-pair connectors continue technological evolution". Cabling Installation & Maintenance. Retrieved 2009-10-19.