![]() ![]() ![]() To switch between each region can be in the following passage: The basic function LBB 1992/00 is equipped with a set of relays for switching the power amplifier's output forward zoning to connect to different speaker marshalling. Users can also use any number of amplifiers, up to no more than the number of routers used. Multiple routers can also share an amplifier, including an internal amplifier on the controller device. In addition, a single channel operation can be performed when only one amplifier is used. It can use two amplifiers to provide both call and background music dual channel operations to up to six different regions. It can use the built-in amplifier on the controller of the LBB 1990/00 Plena voice alarm system and provide input and output for the single-channel or two-channel amplifiers of multiple amplifiers. ![]() The LBB 1992/00 voice alarm router is an extension device that can add 6 zones and 12 input contacts to the Plena voice alarm system. ![]()
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