GPS/GNSS, Primary Reference Master Clocks (ITU-T G.811)

VCL-GPS / GNSS Primary Reference Clocks (G.811), PTP IEEE-1588v2 Grandmaster, PTP Slaves, NTP Time Servers, SSU (Synchronization Supply Unit) solutions

Overview

Valiant offers a wide range of VCL-GPS / GNSS, Primary Reference Clocks (G.811), PTP IEEE-1588v2 (Precision Time Protocol) Grandmaster, PTP 1588v2 Slaves, NTP Time Servers, SSU (Synchronization Supply Unit), Sub-Master Clocks and Display Clock solutions.

Synchronization Solutions Overview:

Applications include synchronization of 2G, 3G, 4G, 5G / LTE mobile telecommunications networks, Micro Cell sites as well as backhaul wireline SDH / SONET and Synchronous Ethernet networks. It may be also used by Railways, Airports (including Air-Traffic Control), Power Generation / distribution companies and other Utility companies who not only require a highly precise time-of-day and frequency synchronization locked to a GPS / GNSS Reference but who also need to distribute highly precise time-of-day and frequency synchronization across all nodes of their networks.

The equipment provides a G.811 / Stratum 1 quality synchronization (GPS locked) reference while providing multiple time (IRIG-B) and frequency outputs that are usually required by the users of such equipment.

The VCL-GPS / GNSS Receiver is equipped with an integrated GPS / GNSS receiver and a highly accurate low-noise OCXO / Rubidium oscillator which provides a high stability holdover quality typical of an SSU in the eventuality of the GPS signal or its antenna failure.

The Grandmaster Clock supports IEEE-1588 PTP Version 2 and delivers nano-second time and frequency synchronization for customer network environment. VCL PTP Grandmaster Clocks not only provides a highly accurate source of synchronization for PTP networks and also provide ToD (Time-of-Day) and Frequency Synchronization. Supported options include IRIG-B, 1 PPS, NMEA, 1/5/10MHz, 2.048MHz, 2.048Mbits clock outputs. OCXO and Rubidium Holdover Clock options are available.

PTP Slave Clocks (IEEE-1588v2) devices simplify the migration towards PTP IEEE-1588v2 by providing a wide range of legacy time synchronization outputs. The PTP IEEE-1588v2 Slave Clocks are synchronized to a PTP Grandmaster and can be used as a timing synchronization source for equipment that requires IRIG, PPS, 1/5/10MHz or E1/T1 telecom carrier signals.

VCL-2145-D
Dual GNSS Primary Reference Clock with IEEE-1588v2 PTP Grandmaster and NTP Time Server

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-D Satellite Receiver also has an integrated, high bandwidth NTP Time Server engine. It provides multiple Input options including up to Dual GPS / GNSS Receivers, 2.048 MHz, 75 Ohms (BNC), 2.048 Mbit/s (E1) (BNC), 10 MHz, 50 Ohms (BNC) and multiple Output options including PTP 1588v2 Grandmaster, 2.048 Mbit/s (E1), or 1.544 Mbit/s (T1), 8 x 2.048 MHz, 1 MHz / 5 MHz /10 MHz, 50 Ohms, IRIG-B, 1PPS, TOD (Time-Of-Day) output compliant to NMEA0183 (DB9, RS-232C), IPv4 and IPv6 NTP Server. Multiple IRIG-B Outputs are provided to synchronize local clock (time-of-day) display units as well as RTUs to a central timing source with nano-second accuracy. OCXO and Rubidium Holdover clock options are available.

Available with:

  • 1+0 (VCL-2145, without GNSS redundancy)
  • 1+1 (VCL-2145-D, with GNSS redundancy)

User selectable GNSS options:

  • GPS
  • GLONASS
  • GPS+GLONASS
  • GPS+SABS (ISRO-GAGAN, WAAS and EGONS)

Data SheetE1 Voice and Data Primary Multiplexer

Comparison ChartE1 Voice and Data Primary Multiplexer

VCL-2145-LC
GPS Primary Reference Clock (PRC)

VCL-2145-LC, GPS Primary Reference Clock is a high precision frequency synchronization solution which may be used to provide ITU-T, G.811 Primary Reference Clocks which are referenced to a GPS source.

The VCL-2145-LC, GPS 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 GPS Reference.

It provides multiple Input options including GPS Receiver, 2.048 MHz, 75 Ohms (BNC), 2.048 Mbit/s (E1) (BNC), 10 MHz, 50 Ohms (BNC) and multiple Output ports including 2.048 Mbit/s (E1), or 1.544 Mbit/s (T1), 8 x 2.048 MHz, 1 MHz / 5 MHz /10 MHz, 50 Ohms, 1PPS, TOD (Time-Of-Day) output compliant to NMEA0183 (DB9, RS-232C). Optional OCXO or Rubidium Oscillator for Holdover clock are available.

Data SheetE1 Voice and Data Primary Multiplexer

Comparison ChartE1 Voice and Data Primary Multiplexer

VCL-2424
DIN-Rail Version - PTP IEEE-1588v2 Grandmaster PRC and GPS NTP Time Server

VCL-2424, DIN-Rail Mount version Primary Reference Clock (PRC), IEEE-1588v2 PTP Grandmaster, GPS NTP Time Server is a ruggedized GNSS (GPS/GLONASS), ITU-T G.811 compliant solution to provide a highly precise time and frequency reference outputs. Applications include synchronization of 2G, 3G, 4G / LTE, 5G services in harsh environments.

It may be also used by railways and metro signalling infrastructure, airports and air-traffic control facilities, solar farms, wind-farms, electric sub-stations, power distribution infrastructure, off-shore oil and gas rigs and naval vessels that are required to operate in complete isolation due to the very nature of their application, geographical location, or due to security reasons.

VCL-2424 establishes a highly accurate phase-synchronized frequency and time base by synchronizing to the GNSS (GPS/GLONASS) satellites' atomic clocks to distribute synchronized time over packet based networks including Ethernet, Carrier Ethernet, IP and IP/MPLS Networks.

VCL-2424 Input port is a GPS / GNSS Receiver and Output ports include PTP 1588v2 Grandmaster, 2.048 MHz, 10 MHz, 1PPS, ToD (Time-Of-Day) output compliant to NMEA 0183 (RJ11) and IPv4 and IPv6 GPS NTP Time Server. The OCXO Oscillator is available for Holdover Clock mode.

Data SheetGPS NTP Server

VCL-2145-SSU:
1+1 Redundant GPS / GNSS / Inputs / Outputs / Holdover

The VCL-2145-SSU is a fully redundant Primary Reference Clock (PRC G.811) NTP, PTP Grandmaster and scalable, intelligent, managed Synchronization Supply Unit specifically designed to provide very reliable, critical and high precision synchronization requirements for customers.

The VCL-2145-SSU (Synchronization Supply Unit) synchronization solution provides Phase, Frequency and Time synchronization with 1:1 protected (redundant) outputs to provide high quality synchronization references for synchronizing SDH, SONET, IP / Ethernet / MPLS, Carrier Ethernet, Synchronous Ethernet, DSL and PON networks.

VCL-2145-SSU systems support traditional T1/E1 synchronization as well as NTP and IEEE-1588 v2 PTP synchronization in next generation packet networks and 4G/LTE wireless networks. It may be also used by Railways, Airports (and Air-Traffic Control), Power Generation and Distribution companies and other Utility companies who require fail-safe, high-reliability and precise synchronized synchronization outputs that are concurrently locked to GNSS (GPS / GLONASS) References.

Data SheetVCL-2145-SSU