32 bit 3U CPCI module IRIG B, 1 PPS sync inputs GPS sync option (maintains single-slot) Have Quick sync input option Propagation delay correction Zero latency time reads Match Time output IRIG-B or IRIG-G time code output (Option) External Event time tags Three user programmable rates +3.3V or +5V PCI signaling levels

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.

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.

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).

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″)

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)

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

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

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

IRIG A & B, NASA 36 and 1 PPS inputs HaveQuick sync option Propagation delay compensation Zero latency time reads Match time output External event time tags Three user programmable rates Conduction cooled

IRIG A & B, NASA 36 and 1 PPS inputs standard HaveQuick sync option Propagation delay compensation Zero latency time reads Match Time output IRIG B time code output External Event time tags On-board GPS receiver option Three user programmable rates Conduction Cooled Version