Brandywine - OSA 3250 Optical-Cesium Precision Timing
- Uses optical-pumping cesium technology rather than magnetic selection for higher stability and longevity.
- Fully compliant with ITU-T G.811 PRC / G.811.1 ePRC standards.
- Supports essential timing outputs such as BITS, PPS (1PPS), and analog frequency.
- Compact, modular design suitable for deployment in racks, enabling scalable deployment across telecom, defense, utilities, and data-center environments.
- Long service life and improved holdover performance — offering enhanced reliability even during extended GNSS disruptions.
- Remote and secure management capabilities, including support for SNMPv3 and integration with orchestration/management suites (e.g. Mosaic Controller).
The OSA 3250 delivers modern, optical-cesium precision timing — offering a compact, modular, and cost-effective solution to replace ageing magnetic cesium clocks. It provides industry-standard ePRC timing, long-term holdover stability and secure remote manageability — ideal for 5G networks, power grids, data centres or critical infrastructure.
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- 3 isolated low phase noise 10MHz outputs
- Internal GPS Tracking Receiver
- External 1 PPS input
- Small footprint designed for easy integration
- Disciplined high stability OCXO
- 3/4 length board (1/2 size available w/o GPS input)
- Optional Have Quick synchronization input
- IRIG’s A and B and NASA 36 time code inputs
- 1PPS sync input
- IRIG B output option
- 1PPS and time code inputs are redundant
- Single-slot including GPS option
- Zero latency time reads
- External Event input (optional eight or sixteen inputs)
- Match Time output
- Programmable Heartbeat rate
- Uses modern optical pumping instead of older magnetic cesium methods, which improves long-term stability and reliability while measuring many more atoms for highly accurate timing.
- Offers excellent frequency accuracy (≤ ±1×10⁻¹²) and very low phase noise on multiple frequency outputs (5 MHz, 10 MHz, 100 MHz), making it suitable for precise synchronization.
- Supports multiple power options (AC, DC ±24 V, DC −48 V) with redundant and hot-swappable supply modules and optional battery backup for one hour, aiding uptime in critical environments.
- 6U single slot VME form factor
- Nine digit time display
- Optional Have Quick synchronization input
- IRIG’s A and B and NASA 36 time code inputs
- 1PPS sync input
- IRIG B output
- 1PPS and time code inputs are redundant
- Single-slot including GPS option
- Zero latency time reads, microseconds through years
- External Event input (optional eight and sixteen inputs)
- Match Time output
- Programmable Heartbeat rate
- Video Time Inserter Option
- Many additional options
- 6U, Single Width VME
- Time Code Inputs
- Time Code Output
- 1PPS Pulse Rate Output/Interrupt
- Frequency Outputs (1, 5, 10 MHz)
- External Event Capture/Interrupt
- Programmable Periodic Output/Interrupt
- Programmable Time Strobe Output/Interrupt
- SOSA Aligned
- 3U VPX Form-Factor
- Reduced SWaP applications
- Ruggedization Level 200
- 11 Radial Clock Outputs
- OpenVPX Backplane support for 1000BASE-KX or 10GBASE-KR
- Optional Chip Scale Atomic Clock (CSAC) Holdover
- Optional Low Phase Noise (LPN) Analog output
- Optional secure GPS (M-code)
- Optional Timecode I/O
- First commercial high-performance cesium atomic clock using optical pumping — 100 times more atoms can be measured compared to magnetic clocks.
- Offers 10 times higher clock stability.
- Double the operational lifetime compared with traditional magnetic cesium clocks.
- Wide range of ultra-low noise frequency outputs (e.g. 5 MHz, 10 MHz, 100 MHz) — plus multiple 1PPS outputs, supporting high-precision timing distribution.
- Frequency accuracy ≤ ±5 × 10⁻¹³; reproducibility after power cycle ≤ ±1 × 10⁻¹³.
- Adjustable frequency offset: resolution ±1 × 10⁻¹⁵, range ±1 × 10⁻⁹.
- Rack-mount (3RU, 19″)
- OSA 3350 Cesium is the market’s first primary reference clock to utilize industry leading optical pumping technology
- Superior short-term and long-term stability compared to magnetic cesium
- Capable of 100 nanoseconds of holdover for a minimum of 30 days
- Compact, 3U 19” rackmount form-factor
- Guaranteed 10-year minimum life expectancy
- Network Time Server
- Dual Redundant Version Available
- Complete Remote Network Control using Standard Web Browser
- SA-ASM GPS Receiver
- 10MHz, 1PPS IRIG B, Serial and Time Codes
- Timing Accuracy 40ns rms to UTC
- 1PPS, Have Quick Inputs
Brandywine Communications
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