MODIFICATION
70 -- STRUCTURES TEST LABORATORY ACQUISITIONS SYSTEM
- Notice Date
- 9/16/2004
- Notice Type
- Modification
- NAICS
- 334119
— Other Computer Peripheral Equipment Manufacturing
- Contracting Office
- NASA/Lyndon B. Johnson Space Center, Houston Texas, 77058-3696, Mail Code: BJ
- ZIP Code
- 00000
- Solicitation Number
- NNJ04077249Q
- Response Due
- 9/27/2004
- Archive Date
- 9/16/2005
- Description
- THIS NOTICE CONSTITUTES AMENDMENT NO. 1 TO THE COMBINED SYNOPSIS/RFQ FOR STRUCTURES TEST LABORATORY ACQUISITIONS SYSTEM. Companies shall acknowledge all amendment(s) in their quote. This notice serves as the official amendment to subject synopsis/RFQ and a written amendment will not be issued. The purpose of this amendment is to respond to the following questions regarding Solicitation NNJ04077249Q. 1) Under the hardware description in the system overview you are asking for UP TO 256 channels. There are several issues, which seem confusing to me. The term UP TO leaves a lot to interpretation. Do you expect a 256 channel proposal or will something less be considered? This makes a big difference in the pricing of the proposal. Response NASA: The overview section was intended to provide general information about the requirements. Some vendors may have 1 channel, 4 channel, 8 channel, 16 channel boards which could affect the way they populate their system?s channel count. The specific channel requirements are detailed in Sections III and IV of the RFQ. A channel count up to 256 is acceptable. 2) You asked for sampling at a maximum of 1,000 samples per second and future expansion capability to 512 channels without affecting performance. Yet, down in the data transfer section you say that 400,000 measurements per second is acceptable. These two numbers don't match. To meet the hardware requirement in the overview you must have a minimum of 512,000 measurements per second as your data transfer rate. Which one is acceptable? Response NASA: All channels do not have to sample at 1000 samples per second at the same time. A combination channel count for a transfer rate of 400,000 is acceptable. 3) Each chassis shall support a minimum of 64 channels. Do you want? 256 channels or is 64 channels acceptable? If a chassis only houses 64 Channels do you expect the proposal to contain four chassis to achieve your "up to 256 channels" request? Response NASA: One 256-channel chassis or 2 ea. 128 channel or 4 ea. 64 channel chassis is acceptable as long as they meet the space requirement of (I g). 4) You expect to have one to four chassis, depending on the potential channel counts in each chassis, to provide a total of 256 independent digitizers, connections for 256 sensors, as well as a display for control and viewing. All of this is supposed to fit in an area 14 X 19 X 23? Response NASA: The control and display should be performed on the ?server workstation? connected thru an Ethernet link to the input chassis. 5) How firm is the requirement for a 64 channel chassis? Response NASA: The chassis may be of a higher channel count as long as it meets the space requirements of (I g). 6) How firm is the requirement for a maximum rack space for 256 channels of 14X19x23? Response NASA: This requirement is firm. 7) How firm is the requirement for an Ethernet interface? Response NASA: This requirement is firm. 8) There are a number of items in the Specs that all limit one another in the possible implementation of your system, namely The DAQ system should be an off the shelf package (System Overview) Response NASA: The system should already be designed, verified and operational in the field by multiple users that could provide NASA with feedback. 9) The System shall have an A/D converter for each channel with no multiplexing or sample and hold. (System Overview) Response NASA: Individual channel multiplexing is preferred because of full integration of the signal over the sample period. 10) There should be no limitation to the position of the channel type in the chassis. (I.f) Response NASA: The hardware and software should work together to identify the type of input module being used in any slot without having to dedicate a specific module to a specific input slot. 11) Maximum allowable rack space for 256 channels is 14x19x23 inches (I.g) Response NASA: This is a firm requirement. 12) Common Mode Voltage +- 50 V typical (III-last bullet) Response NASA: There are many differential amps on the market that range from 6 to 250 volts common mode. NASA is flexible over this range. The due date for receipt of offers is not extended. Companies shall provide the information stated in the synopsis/RFQ posted on the NASA Acquisition Internet Service (NAIS) on August 27,2004. Documents related to this procurement are available over the Internet. These documents reside on a World Wide Web (WWW) server which may be accessed using a WWW browser application. The Internet site, or URL, for the NASA/JSC Business Opportunities home page is http://prod.nais.nasa.gov/cgi-bin/eps/bizops.cgi?gr=D&pin=73
- Web Link
-
Click here for the latest information about this notice
(http://prod.nais.nasa.gov/cgi-bin/eps/bizops.cgi?gr=D&pin=73#112272)
- Record
- SN00675362-W 20040918/040917084936 (fbodaily.com)
- Source
-
FedBizOpps.gov Link to This Notice
(may not be valid after Archive Date)
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