VCL-GPS-2145-D IEEE-1588v2 PTP Grandmaster and Primary Reference Clock and with 1+1 Redundant GPS
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VCL-2145-D, GNSS (GPS-GLONASS-SBAS) PRIMARY REFERENCE CLOCK
Product Overview
Orion Telecom Networks Inc. offers its VCL-2145 (VCL-2145-D) is a high-performance, GNSS (Global Navigation Satellite System) Primary Reference Clock that provides ITU-T G.811 Primary Synchronization Frequency References which are locked to a user selected GNSS (GPS-GLONASS-SBAS) Satellite source.
The VCL-2145 (VCL-2145-D) Satellite Receiver also has an integrated, high bandwidth NTP Server engine that is capable of handling up to 3000 NTP requests per second. Multiple IRIG-B Outputs are also provided to synchronize local clock (time-of-day) display units as well as RTUs to a central timing source with nanosecond accuracy.
The VCL-2145 (VCL-2145-D), Satellite (GNSS) Primary Reference (PRC) Clock is specifically designed for frequency synchronization of 2G, 3G, HetNet and LTE mobile telecommunications networks as well as backhaul wire-line SDH / SONET and Synchronous Ethernet networks. It may be also used by Railways, Airports (and air-traffic control), Power generation and distribution companies and other Utility companies who not only require highly precise G.811 frequency synchronization locked to a GNSS Reference but who also need to provide an accurate time-of-day reference in their networks.
The VCL-2145-D is always locked to a user selected satellite (GNSS: GPS-GLONASS-GAGAN) reference to provide multiple G.811 / Stratum 1 quality frequency and time-of-day (IRIG-B and NTP) outputs. The VCL-2145 is also equipped highly accurate, low-noise OCXO / Rubidium oscillator which provides a high stability holdover clock that is typical of a Network SSU in the event of the GNSS signal, or its antenna failure.
Available Version
| Model | Description |
| GNSS Primary Reference Clock | |
| VCL-2145 (VCL-2145-D), GNSS Primary Reference (PRC) Clock |
VCL-2145, GNSS Primary Reference (PRC) G.811 Clock. Provides 1PPS, NMEA, 1/5/10MHz, 2.048MHz, 2.048Mbits with SSM, 1.544Mbits Frequency Outputs with High Stability OCXO and Rubidium (G.812) Holdover Clock options. |
VCL-2145, GNSS Primary Reference (PRC) G.811 Clock with NTP Server. |
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Features and Highlights
- Reliable, Cost-Efficient Reference GNSS Receiver
- 50 Channel GNSS, L1 frequency, C/A Code Receiver
- Available with 1+0 (VCL-2145, without GNSS redundancy) and 1+1 (VCL-2145-D, with GNSS redundancy) options
- User selectable GNSS options - GPS, GLONASS, GPS+GLONASS, GPS+SABS (ISRO-GAGAN, WAS and EGONS)
- Tracks up to 12 GPS Satellites
- Tracks up to 10 GLONAS Satellites
- Tracks up to 2 SBAS Satellites (including ISRO-GAGAN, WAS and EGONS Satellite Systems)
- Concurrent tracking of up to a total of 34 Satellites
- ITU-T G.811 Primary Reference (PRC) Clock
- GNSS locked G.703 compliant E1, 2.048MBits, 1.544Mbits and 2.048 MHz outputs
- Primary reference and holdover functionality:
- ITU-T G.811 / Stratum 1 compliant (PR) Primary Reference when locked to GNSS
- ITU-T G.812 compliant holdover
- SSM Message format Compliant with ITU-T G.704. Optional GR-378-CORE for SONET Networks
- 1/5/10 MHz output
- 2Mhz and 2Mbps Primary Reference Clock outputs
- 1 PPS outputs
- IRIG-B outputs
- Standard RJ45 and BNC connectors for all inputs and outputs
- ToD compliant to NMEA 0183 (DB9 Serial Port).
Additional Features
- High bandwidth NTP Server capable of supporting up to 3000 NTP requests per second
- IPv4 and IPv6 compatible NTP Server
- SSH, Telnet, Radius, SNMP V2 MIB, Password Protection
- Redundant AC and DC power supply options
- 4, 10/100/1000BaseT Network Interface Ethernet Ports
- Power Contact and Lightening Protection as per Telcordia GR-1089-CORE.
Typical Synchronization Applications
- Synchronizing Cellular networks like UMTS, GPRS, 3G and LTE
- Power generation and distribution companies and other utility companies
- Wireless and Wireline Telecom synchronization
- Distributing Time (ToD) and Frequency reference for power utilities across all nodes of the network
- Synchronization of Defense Networks
- Synchronizing airports and aviation communications
- Synchronizing railway signalling networks and railway communications
- Synchronizing traffic management
- Broadcasting Network and Broadcast equipment synchronization.
Technical Specifications
GPS Receiver:
- Cold Start (includes almanac acquisition time): 27 seconds
- Time-To-Fix (almanac acquisition already completed): 1 second
(Note: with all satellites in view at -130db)
- Tracking and Navigation: -162 dBm
- Reacquisition -160 dBm
- Cold Start -148 dBm
(Note: with all satellites in view at -130db)
Management and Monitoring Ports
Power Supply Options
Application Diagram
GPS Receiver as a Primary Reference (PRC) Clock with IEEE-1588v2 Grandmaster and NTP Server
