Comtech-ef-data MIDAS Version 4.X NMS Configuration Manual de usuario descargar pdf (Pagina 87)

MIDAS 4.X NMS Configuration, Rev.6

Setup and Operation 2–59

CAUTION

The MIDAS System will activate a call if one or more of the channels is

already in the Active Call. It is the MIDAS operator’s responsibility to ensure

that any channel selected is active and available to prevent an active call from

being pre-empted.

Select the Activation type for the Predefined Circuit.

Permanent – this type of Predefined Connection is typically used as a

dedicated, exclusive connection for guaranteed availability.

• RTS – Request to Send; this type of Predefined Connection can be

established only from a remote site, and is typically used as an emergency

backup for circuit restoration purposes when terrestrial circuits fail.

Calls that retry:

Calls that don't retry:

Permanent Remote-initiated calls

Retry only applies to abnormal termination and startup failures. Normal

termination will always end a call without retry, and in the case of a permanent

call, a normal termination will set the circuit to disabled.

The permanent call option for the DC command at the node's user port creates a true

permanent call, which will retry. If the call is terminated later from the user port via the

TE command, this will disable the permanent circuit, since it will be a normal

termination.

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Comtech-ef-data MIDAS Version 4.X NMS Configuration Manual de usuario Pagina 87