GPS Master Clock with Dual Outputs and Time-Tagging of External Events
- High performance GPS master clock
- Remote management by SNMP/HTTP
- Acquisition of Time Reference: GPS, 1PPS, IRIG-B
- 2 x Ethernet, independent ports
- 2 x 1PPS TTL outputs
- 2 x 10 MHz sine wave outputs
- 1 IRIG-B output
- Time of Day output for date-stamping up to 4 external alarms
- RoHS Compliant
Product Overview
The Epsilon Clock™ Model EC31M is a GPS master clock designed to integrate with IP networks. The Model EC31M’s versatility makes it ideally suited for military time and frequency applications. With two physically independent Ethernet ports, control and traceability of the synchronization system over your network LAN and/or WAN are guaranteed. The Model EC31M synchronizes all network devices that have an NTP client and are connected via Ethernet. It offers one IRIG-B timecode output, two 1PPS outputs, and two 10 MHz outputs, allowing it to synchronize a variety of equipment. It also has a dating output which precisely date-stamps up to 4 external events.
If its GPS signal is lost for any reason, the Model EC31M automatically synchronizes to other time references according to their availability and by order of priority. These include an external 1PPS (combined with an NMEA message) and IRIG-B. These signals continue to serve references for disciplining the internal oscillator. OCXO and Rubidium precision oscillators are available for improved microprocessor-controlled accuracy and reliability in holdover mode (should all external references be lost). The oscillator, in conjunction with the EpsilTime™ smart predictive slaving algorithm, mitigates the effects of inherent GPS noise and complies with the most stringent holdover mode requirements.
The Epsilon Clock Model EC31M includes a high-performance, low phase noise OCXO or Rubidium oscillator. This internal oscillator, slaved to the GPS source or external 1PPS source, yields a high level of timing accuracy (+/-25 ns at 1 s).
The Model EC31M offers advanced monitoring and network management functions that can be controlled locally through the serial port, or remotely through the embedded SNMP protocol. When connected to a network with a DHCP or BOOTP type address server, the attribution of the IP address is automatic. Also included is a router that provides automatic routing to linked networks through gateways.
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