NASA, Johnson Space Center, OG3, Houston, TX

A -- MULTIPLEXOR/DEMULTIPLEXOR AND MATES SOL 15OG3-03506P DUE 071495 POC YVETTE GARNER, Tel:713-244-7891 Contracting Officer:LEE PAGEL, Tel:713-244-7213 Item No. 1--flight unit enhanced multiplexer/demultiplexer with a mass storage device, (qty of 3); Item No. 2--flight unit enhanced multiplexer/demultiplexer without a mass storage device, (qty of 3); Item No. 3--Prototype enhanced MDM (qty of 3); Item No. 4--Functional Equivalent Unit (FEU) Enhanced MDMs with mass storage device (qty of 6); Item No. 5--Functional Equivalent Unit Enhanced MDMs without mass storage device (qty of 6); Item No. 6--MDM Application Test Environment (MATES) (qty of 6); Item No. 7--Test Set, Programmable Modular Test Equipment (PMTE) (qty of 1). Non-recurring engineering effort for the prototype development will be required. MDMs must provide multiple 1553 data bus capability, and must be capable of acting as both a bus controller and a remote terminal unit for the data bus in order to interface and be compatible with the International Space Station command and data management system. MDMs must provide mass storage capability of 300 Mega Bytes. MDMs must contain RS -485 serial port for interconnecting between units. MDMs must be packaged in the flight configuration suitable for cold plate mounting and must be able to withstand Shuttle launch environment and on-orbit Space Station environment. MDMs must be in compliance with Specification Number SP-M-505 and SP-M-509. MATES must be compatible with existing MATES utilized on the Space Station. They must be capable of providing a simulation environment for testing and verification of MDMs system operation. The MATES must possess a capability to allow generation of application software for MDM operation. MATES must meet all requirements identified in Specification Number SP-M-300. The following delivery schedule will be required: (1) 2 FEU units delivered March 1996, and 2 additional units delivered each month through August 1996; (2) 1 Prototype unit delivered December 1996, and 2 additional units delivered in January 1997; (3) 1 Flight unit delivered in December 1996, 2 Flight units in January 1997, and 3 Flight units in February 1997; (4) 1 MATE delivered in March 1996, and 1 additional unit delivered each month through August 1996; and (5) 1 PMTE delivered February 1996. See Note 22. Provisions of Note 22 apply to this notice because of the unique design and development of MDMs and MATES to meet required specifications for the International Space Station and Russian Module within the schedule constraints identified above. The intended source is Honeywell Satellite Systems Operations, Glendale, Arizona. (0131)

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