This device offers two modes of operation
1, "three main and one backup" mode: The equipment provides 3 main channels and 1 standby switching channel 2 groups. Can connect six main power amplifiers and two spare power amplifiers. When one of the three main power amplifiers connected to one of the devices fails, the device automatically switches the channel to the backup power amplifier to ensure the normal operation of the system. In addition, under normal circumstances, the main power amplifier and standby amplifier can be manually switched between
2, "six master and one backup" mode: "six master and one backup" mode function Ibid
Note: The following description, if no special instructions are referred to as "three main and one standby" mode. "Six master one backup" mode and "three master one backup" function is similar When one of the group connected to the main channel power amplifier two or more simultaneous failure, the device will be intermittent alarm sound and flashing corresponding The light, remind users to replace the power amplifier in time. Six indicators can visually indicate the working status of each power amplifier. Provide six-way dry contact control, when the main channel failure, dry contact control of other devices