Comdial FX Series Especificaciones descargar pdf (Pagina 59)

Line and Station Boards and Special Components

Printed in the USA Page 5 GCA39-825 Rev 2, Issue 4/02

Ground Start / Loop Start Board

Part Number: FXGST-08 (8-port Analog)

• The Ground/Loop Start Line board provides system interface for ground start lines and loop

start lines. These lines are typically the two different line types that the central office (CO)

makes available for connection to the public switched network.

• The Ground/Loop Start Line board is fully programmable for both line types. The default

type in VMMI programming is Loop Start.

• Because ground start lines are controlled at both ends, they are capable of release supervision

that provides a sure means of determining when a distant party hangs up his or her telephone.

This is very important in applications where calls are costed.

• Since the signaling protocol indicates which end requested the line, it helps prevent call

collisions and glare and thus is useful in applications where there is a high volume of

incoming and outgoing calls occurring on the same lines.

• Ground start lines are standard protocol for remote networking and are useful for connecting

the FX to private branch exchange (PBX) equipment.

• For ground start lines to be dependable, you must ensure that you have connected the FX to a

low resistance telephone company ground.

• Each ground start board, like standard loop start boards, also have the capability to support 1

power fail jack per board and a auxiliary equipment interface connection. The connection is

similar to loop start boards; line 1 is associated with the power fail jack, and line 2 with the

auxiliary equipment interface.

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Comdial FX Series Especificaciones Pagina 59