• High performance reference clock
• 12 channel reception on L1 (1575 MHz) C/A code
• Continuous Time Integrity Monitoring (T-RAIM)
• Automatic self survey with robust 0D fixed mode
• Antenna propagation delay compensation
• 4 x 10 MHz sine wave output
• Up to 4 x 1 PPS TTL outputs
• Time of Day output
• Improved holdover mode powered by EpsilTime™
• Several internal oscillator options including OCXO, double-oven OCXO, and Rubidium
• Numerous distribution options
  • 1 MHz and/or 5 MHz outputs
  • IRIG-B or STANAG 4430 (Havequick) outputs
  • 2048 kHz and 2048 kbit/s (G703/G704) outputs
• RoHS Compliant

The Epsilon Clock™ 2S is a high performance GPS clock with OCXO oscillator. The model EC2S-Rb is available with Rubidium. The extremely accurate and stable time and frequency signals in a compact stand alone chassis (1U high – 19" wide) suits a comprehensive range of applications where excellent accuracy and stability are required especially for synchronization of telecom wireline infrastructure, mobile wireless base stations, transmitters of digital audio or video broadcast.

An ovenized oscillator (OCXO), or optional Rubidium (Rb) atomic clock, is slaved to the GPS input source offers outstanding accuracy and phase noise. An optional Double Oven OCXO is available for a very low aging. The oscillator in conjunction with the EpsilTime™ smart predictive slaving algorithm mitigates the effects of inherent GPS noise and complies to the most stringent holdover mode requirements if GPS is lost. Furthermore, the 10 MHz frequency reference is cycle locked to the 1 PPS, meaning that there are always exactly ten million cycles between 1pps occurrences. This unique feature is essential to avoid phase jumps and wander between time and frequency references.

In addition to the 1 PPS, 4 x 10 MHz, and time of day outputs, many distribution options are available including 1 or 5 MHz, IRIG-B, STANAG 4430 (Havequick), frequency synthesizer, 2048 kHz and 2048 kbits/s, and 3 additional 1 PPS. An option is available to synchronize to one external 1 PPS.

Time of day and status is available via the front panel display. Selection of all settings including squelch of frequency outputs, antenna cable delay, choice of time scale (UTC or GPS) are user programmable. Extended status is available via the serial line interface. Optional EpsilWin32™ software achieves complete remote control and supervision.

EC2S Epsilon Clock datasheet

EC2S-RB Epsilon Clock datasheet

EC2S-EC3S Options

EC2S, EC2S-RB & EC2T EPSILON Clock User’s Manual

Tech Brief: EpsilTime Synchronization Algorithm