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augmented RJ (ARJ)

The specifications of the RJ45 connector are designed for the frequency range up to 250 MHz. This means that it can be used for services that operate with category 6. For services with higher data rates, the GG45 connector, the Tera connector and the ARJ45 connector have been developed.

The ARJ45 was developed by Stewart Connector and is characterized by the transmittable frequency range of up to 5 GHz. In addition, the insertion loss, return loss and especially the near-end crosstalk loss( NEXT) are much better than the RJ45 connector. The ARJ45 has a NEXT of 75 dB at 100 MHz, one of 56 dB at 1 GHz, and it is still 40 dB at 5 GHz.

ARJ-45 connector, photo: CIE-Online

ARJ-45 connector, photo: CIE-Online

With these values, the ARJ45 connector meets the requirements of Category 7a and thus Link ClassFA. This means that services such as 10 Gigabit Ethernet can be transmitted via corresponding STP cables. In addition, the ARJ-45 connector systems can be used in other high-speed networks such as Infiniband or Fibre Channel( FC) or serve as a replacement for Serial Attached SCSI( SAS) or PCI Express( PCIe).

The ARJ-45's contacts are gold-plated and designed to withstand many mating cycles. The ARJ-45 is interoperable with Nexan's GG-45 connector, and its form factor is identical to that of the RJ-45 connector.

Informations:
Englisch: augmented RJ - ARJ
Updated at: 31.07.2009
#Words: 210
Links: RJ45 male connector (RJ45), connector (Conn), frequency (f), megahertz (MHz), category (Cat)
Translations: DE
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