| 摘要 |
PROBLEM TO BE SOLVED: To test and diagnose the problem of an industrial unit set at a customer's site from a place far away from the customer's site. SOLUTION: Remote support terminal equipment 500 is set at a customer's site so that the first remote terminal equipment 500 can communicate with an industrial unit 10, and offer an interface for an operator corresponding to the industrial unit. Then, second remote terminal equipment 1000 is set in a place remote from the customer's site, and the operator of the second remote terminal equipment can control the first remote terminal equipment. When a link 512 for communication between the first remote terminal equipment and the second remote terminal equipment is established, the second remote terminal equipment can offer an interface for an operator corresponding to the industrial unit to the operator of the second remote terminal equipment.
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