Telephone Transmission System

	IUC-X9-TXA	1 Analog System
	IUC-7X-RXA	1 Analog System
	IUC-X9-TXC	1 Analog System & 2 Digital Systems
	IUC-7X-RXC	1 Analog System& 2 Digital Systems

Bi-Directional Signal Interface for leased Telephone Line

	RCI-100-FSK	1 Analog Input & 1 Digital Input 1 Analog Output & 1 Digital Output
	RCI-200-FSK	2 Analog Inputs & 2 Digital Inputs  2 Analog Outputs & 2 Digital Outputs
	RCI-400-FSK	4 Analog Inputs & 4 Digital Inputs 4 Analog Outputs & 4 Digital Outputs
	RCI-800-FSK	8 Analog Inputs & 8 Digital Inputs 8 Analog Outputs & 8 Digital Outputs
	CPI-800	Bi-Directional Contact Phone Interface