Toa RM-200SF - Page 89

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Chapter 3 INSTALLATION AND SETTING PROCEDURES (HARDWARE)
5.1.2. RedundantcongurationofRSTP-compliantswitchinghubs
In the connection example below, both LAN link A and B terminals of each unit are connected to the same
switching hub. By using switching hubs with failure status output function, if any one of switching hubs fails or
the main line breaks, such a failure can be detected.
Notes
• Upto7-levelcascadeisallowedforswitchinghubconnections.
• Afterconnectioncompletion,reactivatetheVX-3000FbypressingtheResetkeyonitsfrontpanel.
• Performspanningtreesettingwithinswitchinghubs.Forthesetting,contactyournetworkadministrator.
• The"Externalfailureinput"functionneedsbeassignedtotheunit'scontrolinputterminaltowhichtheswitching
hub's failure status output is connected. (For details, see the separate Setting Software Instructions, "EVENT
SETTINGS.")
VX-3000F
VX-3000F
VX-3000FVX-3000F
VX-3000FVX-3000F
: LAN link
: Control line
Switching hub
Switching hub
Switching hub
Switching hub
Note: Contact your TOA dealer for more information on switching hubs.