GG45 (GigaGate 45) and ARJ45 (Augmented RJ45) are two related
connectors for
Category 7,
Category 7A, and
Category 8 telecommunication cabling. The GG45 interface and related implementations are developed and sold by
Nexans S.A., while the ARJ45 interface and related implementations are developed and sold by Bel Fuse Inc. The electrical performance of both connectors are compliant with IEC 61076-3-110, as published by the
International Electrotechnical Commission
The International Electrotechnical Commission (IEC; in French: ''Commission électrotechnique internationale'') is an international standards organization that prepares and publishes international standards for all electrical, electronic and ...
. Furthermore, the ARJ45 connector meets the mechanical dimensions specified in IEC 61076-3-110.
Details
The GG45 and ARJ45 connectors operate in the frequency spectrum between 600 MHz to 5 GHz with
shielded twisted pair and
twinax cables. To reduce
crosstalk
In electronics, crosstalk is any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel. Crosstalk is usually caused by undesired capacitive, in ...
, two of the four pairs have been moved so that each pair occupies one corner.
GG45 is a variant of ARJ45 that allows for cables terminated with male
8P8C
A modular connector is a type of electrical connector for cords and cables of electronic devices and appliances, such as in computer networking, telecommunication equipment, and audio headsets.
Modular connectors were originally developed for ...
(AKA RJ45) connectors to be plugged into GG45 female jacks. However, GG45 cables cannot plug into 8P8C jacks as a protrusion on the socket is designed to activate a switch on the jack for the alternative contact positions.
Combined with an internal system of
Faraday cages, the GG45 interface therefore has plenty of headroom, plus the ability to migrate to higher speed service by upgrading to
Category 7A patch cords that activate the switch in the jack.
[, section ''A step further'']
There are two main variants of GG45/ARJ45:
* GG45 or ARJ45 HD is the full connector with 12 contacts, providing a
Category 6 cable
Category 6 cable (Cat 6) is a standardized twisted pair cable for Ethernet and other network physical layers that is backward compatible with the Category 5/5e and Category 3 cable standards.
Cat 6 must meet more stringen ...
interface (100/250 MHz) for older devices as well as the new interface.
* ARJ45 HS is the version without the Cat 6-compatible contacts, for a total of 8 contacts.
1 2 3 4 5 6 7 8
, ‾‾█‾█‾█‾█‾█‾█‾█‾█‾‾, Pinout of GG45 and ARJ45 HD sockets. The protrusion ▒▒▒
, , activates a switch, redirecting the 3-6 and 4-5 pairs to
, _█_█____▒▒▒____█_█_, the corners on a GG45 jack.
3'6' , , 4'5'
, _, ARJ45 HS omits the Cat 6 compatible 3-6 and 4-5 pairs.
See also
*
TERA
References
External links
ARJ45 Modular Connector
{{List of International Electrotechnical Commission standards
IEC 61076-3
Networking hardware