User:West London Dweller/Gestating article (1)

=Global/International/national physical interface standards for voice and data communication=

Much as there are variations in standards around the world for the delivery of electrical power (voltage, frequency, plug design, socket design), there are variations in standards for voice- and data- communications connectivity. The most obvious example of this is the use of different plug and socket designs used for voice telephony, requiring international travellers to carry physical interface converters to allow use of one modem in multiple countries.

Global

 * Copper Twisted Pair - Ethernet, Fast Ethernet, Gigabit Ethernet
 * Copper Coax - Ethernet, G.703? BNC?
 * Fibre-optic - Multimode:
 * Fibre-optic - Single mode:

Country

 * Voice telephony
 * DSL
 * Low speed data
 * High speed data

Voice telephony
RJ11

Voice telephony
RJ11

Voice telephony
RJ11

Voice telephony
RJ11

Voice telephony
RJ11

Voice telephony
BS6312

http://www.wppltd.demon.co.uk/WPP/Wiring/UK_telephone/uk_telephone.html

DSL
?

Low speed data
X.21

High speed data
G.703

Voice telephony
RJ11 RJ45

DSL
?

Low speed data
V.35 - (V.11 ISO 4902) http://www.virtualaccess.com/smgdocs/InstallationGuide/Serial/serial_cable_310_gif.htm

High speed data
RJ48

[Category:Telephone connectors] [Category:Networking hardware]