The Ashly Inline RS-232 Adapter exists to allow Ashly Products that do not have an RS-232 port, but do have the WR-5 data control input and output connections, to be connected to RS-232 control systems.
The preferred method to control Protea NE products is with either TCP or UDP via Ethernet, however this may not always be possible in some installations where a non-Ethernet control system is used.