The 5820 GPI/Serial Interface module extends the capability of the Avenue control system enabling third party equipment to control Avenue modules. The 5820 provides General Purpose Interface control (GPI contact closure) over modules located anywhere in an Avenue system. It also provides RS-232/RS-422 serial interface access for use with show controllers and automation systems. To use the 5820, just install it in any Avenue frame in the system and connect the 5820’s GPIs or serial interface to your automation system or other third party device. Using the Avenue control system, the 5820’s GPIs and serial inputs can be mapped to any Avenue module in the system. When a GPI or serial command is received by the 5820, a message is sent to the corresponding Avenue module. That module then recalls the specified memory register. The 5820 module takes full advantage of the Avenue control system and is able to communicate with any other module located in any Avenue frame. Using M2M™ (Module To Module) communication, the 5820 acts on GPI contact closures, or serial commands, by sending configuration recall commands to another module. From the serial interface port of the 5820, an external device can also activate the same recall functions. Supporting both RS-232 and RS-422 interfaces, the simple ASCII-based protocol allows easy interconnection to any control system.