A.In case of an Ethernet cable failure, each REAC device provides two REAC ports--MAIN and BACKUP. The MAIN port is used for the primary REAC connection, while the BACKUP port provides a redundant backup. Should the primary connection fail, the backup connection will automatically take over.
When a problem is detected, it takes approximately two to three milliseconds for the MAIN to BACKUP switchover. (If a switching hub is connected in-line, the switchover time may be slightly longer.)
The switchover time is the same when the MAIN connection is restored (BACKUP to MAIN).
Note:
The REAC interface is designed to be noise-free is most circumstances. On rare occasions, however, noise may be heard from the audio outputs during switching.
(2006/04/04)