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On-site User
Wibu Key
LAN or Internet or
Public telephone line
(Encrypted communica-
tion)
VRF Explorer
Software
•User interface
•Data acquisition display
•Transmission of control data
•Requests to server
(Data, control)
Client PC
Remote User
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System Controller Lite
VRF Explorer
Software
•User interface
•Data acquisition display
•Transmission of control data
•Requests to server
(Data, control)
User authentication
•Reception of requests
from client
•Device control
•Device data acquisition
•Writing of various logs
VRF Controller
Software
U10 USB Network Interface
Transmission line
18
Max. controllable
100 Outdoor Units
400 Indoor Units
Database
Server PC
VRF System
Max. controllable
100 Outdoor Units
400 Indoor Units
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