26-01590 Requirements and Specifications.pdf

Requirements / Specifications: Cesium beam atomic clock 1 Version 1.0 (2019) Double-click on for further assistance.

Use this document to detail specifications/requirements for an item and/or ancillary services.

TITLE: Cesium beam atomic clock Requesting Lab/Division/Group: PML/688.40/Time Realization and Distribution Group

General Statement of Need NIST operates several atomic clocks as part of the ensemble time scale that generates UTC(NIST), an official source of time and frequency signals for the United States. The ensemble is composed primarily of hydrogen maser and cesium beam clock devices: respectively, these clocks confer advantages of short-term and long-term frequency stability. Clocks in the ensemble must be based on mature technology and are required to operate continuously for several years with no interruptions, significant time deviations, or required maintenance operations.

Items and/or Ancillary Services

Item 1: Cesium beam atomic clock Quantity: 1 Specifications:

Specification 1.1: Short term stability of all output signals, <= 1e-11 Allan Deviation (ADEV) at 1 s averaging interval. Specification 1.2: Long term stability of all output signals, <= 1e-14 Allan Deviation (ADEV) for averaging intervals longer than 10 days. Specification 1.3: At least one output signal at 5 MHz nominal frequency, amplitude >= 1 Vrms (or +13 dBm) into a 50 ohm terminated load. Specification 1.4: At least one output at 10 MHz nominal frequency, amplitude >= 1V rms (or +13 dBm) into a 50 ohm terminated load.

Specification 1.5: At least one output of a pulse-per-second (PPS) signal, amplitude > 1.5 V into a 50 ohm load.

Specification 1.6: Accepts an input pulse-per-second (PPS) signal for coarse synchronization (<= 100 ns).

Specification 1.7: Accepts AC power input of either 120V or 208V (60 Hz).

Specification 1.8: Accepts 24V dc as an auxillary power source.

Specification 1.9: Contains a battery backup providing at least 30 minutes of operation, or accepts an external battery pack via connector.

Specification 1.10: Power consumption < 100 W.

Specification 1.11: digitial system control and monitor interface, as serial (RS232), ethernet, or similar standard interface.

Specification 1.12: digital interface allows for precision adjustment (quantization < 1e-14) of clock frequency.

Specification 1.13: digital interface reports warning/alarm/error status.

Specifiaction 1.14: device compatible with EIA-compliant equipment racks, width < 482.6 mm.

Specification 1.15: operational temperature range 15°C – 45°C.

Specification 1.16: specified temperature coefficient (averaged over operational temperature range) < 3e- 15/°C.

Specification 1.17: sensitivity to magnetic field change < 4e-14 / G.

Specification 1.18: demonstrated mean time between failures (MTBF) > 10 years (or 87,600 hours).

Requirements / Specifications: Cesium beam atomic clock 2

Separately Priced Options and Services:

Item 2: [List minimum specifications.

Quantity: [Enter quantity here.] Specifications: [Enter quantity here.]

[List any other item(s) or service requirements here using the same format above.]

Service Requirements / Item Specifications Section Requirements/Specifications Planning Considerations ☒ N/A

☐ List any visits required to allow potential vendors to see site specific constraints.

[Explain requirement here]

☐ US citizen required on-site (foreign nationals require preregistration 30 days prior) ☐ Vendor rep on-site more than three days ☐ Other considerations: [List other considerations to ensure an accurate quote]

Shipping & Delivery ☐ N/A

[Enter shipping and delivery information by item here.] Shipping criteria:

☐ Partial delivery acceptable ☐ Direct delivery to building required

[Explain need for requirement here] Building has: ☐ Loading dock

☐ Containerization preference: [Choose container] Other requirements: [List any other requirements here]

Delivery date criteria:

☒ Delivery of goods, installation, and training shall be completed no later than:

18 weeks ARO ☐ Deliver no earlier than: [Insert date here] ☐ Other: [List other shipping, delivery, or specil requirements]

Electronic Media ☒ N/A

[Enter electronic media requirements by item here.] ☐ Software ☐ Electronic manuals ☐ License Key ☐ Other: [List any other Electronic Media requirements here] [Enter email address for software delivery here]

Installation ☒ N/A

[Enter installation requirements by item here.] ☐ Vendor technician on site ☐ Rigging ☐ Uncrating / Unpackaging ☐ Removal of packaging material ☐ Equipment set up ☐ Start-up services ☐ Turn key installation ☐ Other [Enter details here.] Note: When installation is required, TPOC or COR shall be the coordination point.

Requirements / Specifications: Cesium beam atomic clock 3

Facility / Utility Considerations ☒ N/A

[List site specific utility considerations by item here.] ☐ OFPM Work Order Number(s)

[List any Work Order Number(s) here] ☐ Power available

Voltage: [Enter voltage here] (V) Max Current: [Enter max current draw here] (A) Phase: [Choose phase] Frequency: [Typically 60Hz] (Hz) NEMA Plug Type: [Enter plug type here] (i.e.: NEMA L5-20P) Environment: [Choose environment] Other power consideration: [List any other power considerations here]

☐ Utility connections: [List relevant available utilities, pressure(s), and flowrate(s)] ☐ Other considerations: [List other considerations to ensure an accurate quote]

Warranty ☐ N/A

Base Manufacturer Warranty is acceptable [If you require an Extended Manufacturer Warranty, describe the warranty requirements per item here.] What is included?

☐ Labor ☐ Parts ☐ Travel ☐ Cost and liability for returns ☐ Other: [Enter other requirements here] ☐ Warranty length: [Enter warranty length here] Period Length:[Ex. month, 6 month, year etc.]

Training ☒ N/A

[Training requirements (who, when, what, where) here. If on-site, is travel necessary?] ☐ On-site ☐ Off-site location: [Enter location(s) here] ☐ Number of trainees: [Enter number of trainees here] Scope of training:

☐ Operations ☐ Maintenance ☐ Troubleshooting ☐ Safety ☐ Other: [Enter other scope requirements here]

☐ Training materials to be provided: [Describe requirement here] ☐ Other: [Enter other training requirements here] Note: When training is required, TPOC or COR shall be the coordination point.

Inspection and Acceptance ☐ N/A

[Enter inspection requirements per item here] ☒ Planned government acceptance testing (7 business days) ☐ Gov’t acceptance expected to take longer than 7 business days: [Duration] ☐ Inspection and acceptance plan: [Explain here] ☐ Other: [Enter other requirements here]

Requirements / Specifications: Cesium beam atomic clock 4

Maintenance ☒ N/A

[Describe your maintenance requirements per item here] Period Length: [Ex. month, 6 month, year etc.] What is included?

☐ Labor ☐ Spare parts ☐ Consumables ☐ Travel ☐ Cost and liability for returns ☐ Software updates ☐ Manuals ☐ Service plan length: [Enter service plan length here]

☐ Other: [Enter other requirements here] ☐ Requirements: [Enter requirements here] (i.e.: onsite within 72 hours, etc.)

☐ Option Period 1 ☐ Option Period 2 ☐ Option Period 3 ☐ Option Period 4

Government Furnished Material / Equipment ☒ N/A

[List any government furnished material/equipment per item here] ☐ Samples for testing ☐ Government equipment which will leave gov't site (TPOC must coordinate with division property custodian)

Serial Number: [Enter Serial Number here] Description: [Enter description here] NIST property number: [Enter NIST property number here]

☐ Other: [Enter other details here] Travel ☒ N/A

[Describe any travel requirements per item here] ☐ Explain: [Explain here] ☐ Other: [Enter other requirements here] Vendor: To the maximum extent possible, include as part of appropriate sections above (maintenance, repair, etc.). Otherwise, it will be a separate line item, reimbursable per the Federal Travel Regulation.

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