The AX-8 Analog Expander is an instrument that enables Powermeters to interface with other devices that require analog signals. The AX-8 can be connected to any Powermeter equipped with an RS-422 communication port and analog expander option. The AX-8 provides up to 8 analog outputs. Two units can be connected in sequence, providing as many as 16 analog outputs with use of one Powermeter. For information on analog output and analog expander setup and connections, refer to the Installation and Operation Manual of the specific Powermeter.