CDP review manual

CDP review manual

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Communication Services There are three basic types of connection of data communication equipment: simplex, half duplex, and full duplex. A simplex ... You can still purchase some forms of the TELPAK services with 60-240 voice-grade circuits. ... Incorporated into the system will be a digital terminal system (DTS), a wideband, two-way microwave facility. ... In its early steps, there will be a limited number of digital intercity trunk circuits accessible to geographically dispersed users.

Title:CDP review manual
Author:Kenniston W. Lord
Publisher:Van Nostrand Reinhold Company - 1986


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