fallback switch

fallback switch

[′fȯl‚bak ‚swich]
(communications)
A mechanical switch to transfer a communications path from a primary device to an identical standby device in the event of a primary device failure.
References in periodicals archive ?
com)-- Electro Standards Laboratories (ESL), Cranston, RI, has just announced its new PathWay Model 7339 CAT5e 10/100/1000BASE-T Full/Half Duplex RJ45 A/B Automatic Fallback Switch with 10/100 Base-T LAN Telnet Access and Graphical User Interface (GUI).
An example of a normal/redundant fallback switch is used as the first example and a special switch that was designed with two remote ports and two power supply ports as the other.
The service is built upon a Hadax 8216 Fallback Switch that will sense a loss of data to the customer for a specified period of time (typically 10 seconds).
announced that its new single-port ISDN FallBack Switch (FBS) uses a dialup ISDN line to back up one independent dedicated digital link for line recovery without compromising the data transfer rate.