SOW Attachment 1- Addtl Specs.docx

Littoral Combat Ship (LCS) Independence Advanced Engineering Control System (AECS) Data Acquisition Units (DAU) Request for Information (RFI) / Sources Sought Notice (SSN)

1. AECS DAU Scope of Work

a. Background - LCS Independence DAUs have been redesigned to include:

i. 25% I/O signal growth from Legacy system

ii. Hot swap capable I/O module backplane

iii. 3 pairs of redundant PLC controllers

iv. weight PLCs for data transmission to Profibus Devices

v. Interface modules to communicate to shipboard I/O

1. Multiple interface modules are used to segregate I/O signals into functional groups (ie. SSDG signals, SWBD signals, etc.)

2. Supported I/O are Modbus Serial I/O, Digital Inputs, Digital Outputs, Analog Input, Analog Output, Analog RTD

vi. All I/O is connected from the Siemens I/O module to WAGO terminal blocks/relays for connection to the shipboard wiring.

vii. Power distribution will utilize EMI filter, Breakers, fuses, DC/DC converters, and Siemens Selectivity modules. The split power distribution allows the DAU to maintain partial functionality in the event of a power component failure.

b. Deliverables:

i. Provide 13 shipsets of DAUs for LCS Independence (20 unique DAUs per shipset)

ii. Each shipset is required 3 months prior the ship availability and be delivered to each Shipyard once identified.

iii. Any modifications must be documented in Technical Data Package content including revisions to the Government Funded Information

1. Any modified structure or new component will require written and accepted extension from the contractor or additional component mil-spec testing.

2. AECS DAU Scope of Work

a. Technical Specifications:

i. Existing mounting interface & cable entries

ii. Dimensions: 44.5" H x 25.5" W x 12.75" D or less (each cabinet)

iii. Weight: 270lbs or less (each DAU cabinet)

iv. Power: 24VDC

v. Network & Communication: Ethernet & Fiber

vi. MIL-STD environmental testing: EMI, Shock, Vibration, Water/Dust, Salt/Fog, Thermal, and Airborne Noise.

b. Military Specifications - Deviations from provided drawings will require extensions or retesting of the following:

i. MIL-S-901D: Requirements for Shock Tests, High Impact Shipboard Machinery, Equipment, and Systems

ii. MIL-S-167-1A: Mechanical Vibrations of Shipboard Equipment (Type I – Environmental and Type II – Internally Excited)

iii. MIL-STD-461G: Requirements for the Control of Electromagnetic Interference Characteristics of Subsystems and Equipment

iv. MIL-STD-810H: Environmental Engineering Considerations and Laboratory Tests

c. Enclosure Specification:

i. Enclosure is zinc plated steel construction with two main components: outer cabinet and inner mounted panel.

ii. Outer cabinet has a hinged swing door, door stay, indicator lights, resilient mounts to fit shipboard foundations, bolted bottom panel for shipboard cable entry (utilizing cable glands), and eye hooks for lifting.

iii. Inner panel consists of a metal backplane with a swing door for additional mounting space. The panel contains the din rail mounted controls equipment, power distribution equipment, fan, terminal blocks/relays, cable trays, and internal wiring.

3. DAU Essential Parts List –

4. Documentation - Government Funded Information (GFI) to be provided:

a. Installation DWG - Dimension information for outer cabinet and component identification

b. DAU Assembly DWG - Information for outer cabinet components and installation locations

c. Enclosure Assembly DWG - Information for mounting internal panel within the outer cabinet

d. Mounting Panel Assembly DWG - Information for the internal panel fabrication

e. Electrical Panel Assembly DWG - Information for internal panel component layout

f. Wiring Schematic - Diagram for electrical component connections

g. Wire Connection List - Information for wiring installation