Signal relay device, communication network system and...

Details Signal relay device, communication network system and... Signal relay device, communication network system and...

2011-08-16

2011-08-16

Tweel, Jr., John A (Department: 2612)

Communications: electrical

Repeater in unspecified type communications line or channel

C370S338000

Reexamination Certificate

active

07999661

ABSTRACT:
A signal relay device, a communication network system and an operation system include: a standardized logic interface conversion unit for judging a control system type or a device type and converting a signal to a signal appropriate for a communication network; or a device side logic interface conversion unit for converting a signal from the communication network to a signal appropriate for the control system type or the device type. An operation monitoring station includes a an advanced control block for the control system or the device and transmits a control signal to the communication network.

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