• When the number of system units exceeds 250, the unit data information exchange processing exceeding the limit value can be realized by the data expander.

· External audio output can be synchronized with the host data.

·The built-in overload protection of the expansion machine can effectively prevent short-circuit overload of units and connections.

·Using high-precision regulated power supply, it has strong resistance to external interference, and the signal is denoised. The noise will not increase after the number of units is increased.

· 60 microphone units can be connected, and four channels can be connected in parallel, and each unit can connect 20 units;

· Four 8P-DIN sockets for system multi-way connection and connection to other expansion units, can be placed flat on the table or installed in a 19-inch standard cabinet.

· Standard 1U chassis design, subjected to high voltage test to ensure compliance with safety standards