Excalibur 366 Specifikace stáhnout pdf (Strana 137)

Defining Operating Parameters

5-49

Port RTS-DCD Simulation

This parameter specifies the RTS-DCD simulation method for each port or shared group

when dial backup connections are established. The options are V.13, Out of Band, and

Disabled.

Note: When operating with another DAP equipped with ISDN IDBU, do not set this

parameter to out of band. ISDN IDBU does not provide out of band RTS-DCD

simulation.

Ring Detect

This parameter specifies the method the DAP uses to answer calls. Two options are

available:

• Short - AT&T standard. Short ring detection is as specified in the AT&T

publication on Switched 56 Kbps operation. For short ring detection logic,

timing is +/-4 milliseconds. Data Mode Idle (DMI) must occur for 72

milliseconds before it is considered an incoming call (ring indication).

• Long - The long ring detection logic is designed to minimize sensitivity to noise

which could cause erroneous recognition of incoming calls. However, it does not

comply with the AT&T Specification. DMI must occur for 1 full second before

it is considered an incoming call (ring indication).

This parameter should be set to Long for most applications.

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Excalibur 366 Specifikace Strana 137