41700-777 - Interface Unit

The Interface Unit is used in the Replacement Frequency Modulated Orderwire (RFMOW). The 41700-777 IU is a standard 19" rack mountable unit which provides a common point for connecting various hardware elements, signaling protocol converters, Secure Voice Unit, modem(s), and housing for a COMSEC device. The IU contains signal switching and level conversion printed circuit boards, and power supply. The Unit will support a Network Terminal (NT) configuration or a Network Control Terminal (NCT) configuration, selected by a rear panel switch.

The interface unit (IU) is compatible with the Secure Terminal Unit (STU III) and Secure Terminal Equipment (STE); SDM-100 and SDM-300 Modems; CV 3654/G and CV4250/G Converters; KIV-7, KIV-7HS and KIV-7HSB Communication Security Modules; Multi Com Port compatible computer system.

The 41700-777 provides basic switching capabilities for voice and data within DSCS orderwire systems. If you require more control of your orderwire resources or compatibility with KIV-7M then consider RFMOW-V2. RFMOW-V2 is drop-and-insert compatible with the 41700-777 Interface Unit.