NASA Lewis Research Center, 21000 Brookpark Road, Cleveland, Ohio 44135

58 -- SOURCES SOUGHT - HARDWARE AND SOFTWARE MAINTENANCE OF ACTS GIGABIT NETWORK DUE 041196 POC Doug Hoder, Project Manager, (216) 433-3438, MS 54-6 Internet E-Mail: Doug.Hoder@lerc.nasa.gov. Sources are sought to provide hardware and software maintenance, and engineering support. The Advanced Communications Technology Satellite (ACTS) Gigabit Network is a system of five High Data-Rate (HDR) ground stations designed to be used with NASA's ACTS. The Gigabit Satellite Network was designed to provide wideband services and extensions of terrestrial SONET fiber networks through ACTS. The ground stations and software were designed and constructed by BBN Systems and Technologies, with Motorola GSTG serving as a major subcontractor. The NASA ACTS Project Office and MITRE Corporation provided management of the program. Each ground station is capable of transmitting and receiving data at rates up to 622 Mb/s, compatible with terrestrial SONET OC-3 and OC-12 service. The network can be configured to operate with fixed beams, scan beams and steerable antenna of ACTS. No further ground stations are planned to be constructed. For more information, see the ACTS Web page at ''http://kronos.lerc.nasa.gov/acts/acts.html'', and the GSN Home page at ''http://www.cgrg.ohio-state.edu/other/actsgsn/gsnhome.html''. All interested parties may submit information for evaluation of their capabilities to the above project manager prior to the closing date of this synopsis. Effective October 1, 1995, the Internet will be the only source of NASA Lewis Research Center MidRange synopses and solicitations. Other synopses will continue to be published in the CBD as well as the Internet. Internet Address: ''http://www.lerc.nasa.gov/WWW/Procure/home.htm''. (0087)

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