• Fully redundant dual GPS clock
• Dedicated to applications demanding in quality, reliability, and availability
  • Digital Video and Audio Broadcast: DVB-T/H/SH, FLO, T-DMB, ISDB-T 
  • Wireless Telecom: CDMA, WiMAX, TDOA caller locations
• Dual high performance OCXO disciplined by GPS
• EpsilTime™ smart predictive slaving algorithm
• Smart switching with low phase jump, in case of clock failure
• 8 x 1 PPS TTL outputs
• 8 x 10 MHz outputs
• Remote management by SNMP/HTTP
• RoHS Compliant

The Epsilon Clock™ 22S provides high reliability synchronization solutions with very accurate and stable time and frequency signals. The high performance suits a comprehensive range of applications where excellent accuracy is required, especially synchronization of mobile wireless base stations, emitters for digital audio or video broadcast.

The highest reliability is provided by fully redundant clock modules feeding an automatic fast monitoring and switching controller. Outputs signals are switched with very low phase glitch. Both clock modules integrate their own frequency generation circuit and autonomous power supply. They are hot swappable for online repair. Modules are accessible from the front panel.

A high performance ovenized oscillator (OCXO) slaved to the GPS input source offers outstanding accuracy and phase noise. An optional very high performance OCXO is available for excellent temperature stability and 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 1 PPS occurrences. This unique feature is essential to avoid phase jumps and wander between time and frequency references.

Setup, status and alarms are accessible by remote control through any internet browser and/or through SNMP protocol. The antenna cable delay and the choice of time scale (UTC or GPS) are programmable on both modules. Alarms via relay contacts are available. Status is displayed on the front panel by LEDs.

Datasheets

Manuals

EC22S EPSILON Clock Model Dual GPS Receiver User’s Manual