Accession Number : ADA151935


Title :   Continued Development and Implementation of the Universal Network Interface Device (UNID) II, Digital Engineering Laboratory Network (DELNET) Volume 1.


Descriptive Note : Master's thesis,


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Childress,C T , Jr


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a151935.pdf


Report Date : Dec 1984


Pagination or Media Count : 161


Abstract : This research effort describes the continued development of an improved Universal Network Interface Device (UNID II). The UNID II's architecture was based on a preliminary design project at the Air Force Institute of Technology. The UNID II contains two main hardware modules; A local module for the network layer software and a network module for the datalink layer software and physical layer interface. Each module is an independent single board computer (SBC) residing on an Intel Multibus chassis, complete with its own memory (EPROM and RAM), serial link interfaces, and multibus interface. The local module is an iSBC 544 and the network module is an SBC 88/45. The network layer software supports the CCITT X.25 protocol, datagram option, and the data link layer software supports the CCITT X.25 LAPB (HDLC) protocol. This report documents the detailed hardware and software design, integration, validation and test of this system. Originator-Supplied keywords included: Local Area networks, Network Interface, Protocol, UNID, ISO Reference Model, X.25, X.121 TCP/IP, and Theses.


Descriptors :   *NETWORKS , *INTERFACES , *COMPUTER ARCHITECTURE , COMPUTER PROGRAMS , AIR FORCE , SYSTEMS ENGINEERING , VALIDATION , COMPUTERS , PROGRAMMING LANGUAGES , THESES , MODULAR CONSTRUCTION , DATA LINKS , NETWORK FLOWS


Subject Categories : Computer Programming and Software
      Computer Hardware
      Computer Systems


Distribution Statement : APPROVED FOR PUBLIC RELEASE