Dual XPR522 Informações Técnicas descarregar pdf (Página 23)

Revised May 15, 2006

Telephone System Types:

PABX/PBX – a telephone system that uses industry standard telephones

exclusively.

Electronic Key System (key system) - a telephone system that uses

proprietary digital telephones exclusively.

Hybrid Telephone System - a telephone system that uses proprietary

digital telephones and industry standard telephones

VoIP Telephone System - a telephone system that uses utilizes IP

technology and proprietary Voice over IP telephones.

Telephone System Terms:

Station – a telephone that is connected to a telephone system.

Station or FXS Port – a port on a telephone system designed to connect to a

station. These may be digital or analog and must be used with the appropriate

type of station.

FXO Port – a port on a VoIP telephone system designed to connect to a loop

start telephone line. Loop start refers to the signaling characteristics of the line.

Loop Start C.O. Line Port – a port on an electronic key telephone system

designed to connect to a loop start telephone line. Loop start refers to the

signaling characteristics of the line.

Loop Start Trunk Port – a port on a PABX designed to connect to a loop start

telephone line.

Ground Start Trunk Port – a port on the telephone system designed to connect

to a ground start telephone line. Ground start refers to the signaling

characteristics of the line.

The Admin Ports on a Class Connection System connect to FXO

Ports, Loop Start Trunk Ports or Loop Start C.O. Line Ports.

Some Telephone systems (VOIP, some digital) may require

additional equipment to provide loop start C.O. Line Ports.

Industry Standard Telephone –

Same as a typical home telephone

Proprietary Key System Telephone

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Dual XPR522 Informações Técnicas Página 23