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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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- IRIG’s A and B and NASA 36 time code inputs
- +3.3V or +5V signalling
- 1PPS Sync input
- External Event (Time Tag) input
- Three programmable pulse rate outputs
- Match Time output
- Industrial Temperature Range option
- Optional on-board GPS option
- Optional HaveQuick input/output
- Optional IRIG B time code output
- 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
- Accurate & reliable time data from a trusted source
- Remote configuration and status via web browser, remote monitoring with SNMP
- Synchronization between users – eradicates discrepancies
- System time stamping, such as e-commerce transactions, e-mail sent & received, is highly accurate
- Automatic systems procedures such as backups occur at the correct time and in the correct order
- Additional time signal outputs can feed to other systems
- Multiple time source fall back and priority configuration can ensure high synchronization availability
- Various oscillator choices allow for long holdover to maintain time accuracy when synchronization signals are absent
- 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″)
- Redundant design with multiple signal paths built in for high-availability.
- 12 expansion slots in the 2U version and 5 expansion slots in the 1U variant.
- Industry-first GPS integrity checking
- Unique optical crosslink architecture for either Master-Slave hierarchical setups or Master-Master crosschecking and failover
- 2U version is operated by an intuitive touch-screen interface, a first for any master clock system.
- All components are hot-swappable and are dual redundant.
- The Output Signal modules are hot-swappable from the front and minimize the need to disconnect cables.
- Ultra-long Holdover with improved ePRTC algorithm to provide up to 100 days of holdover within 100ns
- Jamming, spoofing detection
- High Accuracy White Rabbit PTP allowing sub-nanosecond time synchronization achievable through firmware upgrade, no additional hardware required
- 4x 10MHz Low Phase Noise (LPN)
- Single-slot 32 bit PCI Express module
- IRIG A, B, NASA 36, 1 PPS sync inputs
- HaveQuick sync input option
- Propagation delay correction
- Zero latency time reads
- Match Time status / interrupt
- IRIG-B time code output (option)
- External Event time tag
- User programmable heartbeat rate interrupt
- 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
- 5 MHz or 10 MHz Outputs Available
- Reference Frequency Input Option
- Auto Changeover with Ref. Input Option
- Low Phase Noise Outputs
- Twenty four Outputs
- Front Panel Status Indicators
- Fault Discrete Inputs
- Compact 1U, 19” rack mount
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