The custom circuit cards shown control a uni/bidirectional RF switch matrix. This circuit card has RS-485, RS-232, LCD, Keypad, Ethernet, bit shift port and one general I/O port. These cards are connected together so each can run the switch matrix, one being a remote controller, which may or may not be at the same location as the main controller.
Real-Time Communication Control
Keypad, LCD Displays & Ethernet with Co-operative Multi-Tasking
Multi-Page Control for LCD
LCD Display of Control Actions
I/O Port Expansion
Change Communication Port Modes via Software
Keypad Control of RS485/RS232, Ethernet Interfaces