The AX-8 Analog Expander enables power meters to interface with other devices that require analog signals. The AX-8 can be connected to any power meter equipped with an RS422 communication port and an analog expander option. 8 channels are provided for high-resolution analog output. Two units can be connected in sequence, providing as many as 16 analog outputs with the use of one power meter. A wide range of operations offers current output or voltage output.