A class of switches used to provide fail-over support for critical network communication lines. Fallback switches are an essential component of a fault tolerant network system with resources that must have a high availability. The FallBack Switch (FBS) is designed to allow automatic electronic switching between two modems or other RS 232-C devices.
SPECIFICATION OF FALLBACK SWITCH CARD
Interface : RS 232-C
Connectors : 9 PIN D TYPE FEMALE – 1 No. 9 PIN D TYPE FEMALE – 2 No. (PRI, ALT)
Pins Supported : 3 – TXD, 2 – RXD, 7 – RTS, 8 – CTS, 6 – DSR, 1 – CD, 5 – Signal Ground and 4 – DTR
Indications : 6 LED’s
Controls : 2-position mode select switch
Control Signals : CD (1-2 Mode), DTR (2-1 Mode)
No. of cards/rack : 10
Construction : 100mm x 160mm Plug in card for 3U, 6T 19” sub rack
A model with standalone FBS card is also available as model FBS-02.
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