4100 Series

PRIMARY REFERENCE CLOCK, PTP GRANDMASTER AND NTP SERVER

KEY FEATURES Data Sheet

Overview

4100 Series is a high-performance, high-reliability GPS Primary Reference Clock and IEEE-1588v2 PTP Grandmaster that provides ITU-T G.811 Primary Synchronization Frequency References which are locked to a user selected Satellite source. The 4100 Series Satellite Receiver also has an integrated, high bandwidth NTP Server engine that is capable of handling up to 5000 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 4100 Series, 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 but who also need to provide an accurate time-of-day reference in their networks.

The 4100 Series incorporates up to dual (1+1 redundant) GPS receiver engines and dual (1+1 redundant) power supply options for added reliability which are always locked to a user selected satellite (GPS) reference to provide multiple G.811 / Stratum 1 quality frequency and time-of-day (PTP, NTP and IRIG-B) outputs. The 4100 series 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 GPS signal, or its antenna failure.

The 4100 Series incorporates up to dual (1+1 redundant) GPS receiver engines and dual (1+1 redundant) power supply options for added reliability which are always locked to a user selected satellite (GPS) reference to provide multiple G.811 / Stratum 1 quality frequency and time-of-day (PTP, NTP and IRIG-B) outputs. The 4100 series 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 GPS signal, or its antenna failure.

Key Features

IEEE-1588v2

IEEE-1588v2 PTP Grandmaster

ITU-T G.811 compliant

2.048MHz and 10MHz frequency outputs

Rugged Construction

IP65 Polycarbonate, corrosion resistant outdoor enclosure

Standard PTP Profiles

Default, Telecom, Power, SMPTE, Telecom2 and Power2

NTP requests

Supports up to 3000 NTP requests per second

Supported protocols

IPv4, Ipv6, SSH, FTP, SYSLOG, SNMPv2 and TELNET


Features and Highlights

  • Reliable, Cost-Efficient Reference GPS Receiver
  • 50 Channel GPS, L1 frequency, C/A Code Receiver
  • Available with 1+0 (4100 Series, without GPS redundancy) and 1+1 (4100 Series, with GPS redundancy) options
  • Tracks up to 12 GPS Satellites
  • Concurrent tracking of up to a total of 34 Satellites
  • ITU-T G.811 Primary Reference (PRC) Clock
  • GPS locked G.703 compliant 1.544Mbits, 2.048MBits, 2.048 MHz 1 PPS and 1 PPM outputs
  • SSM Message format Compliant with ITU-T G.704. Optional GR-378-CORE for SONET Networks
  • ITU-T G.811 / Stratum 1 compliant (PR) Primary Reference when locked to GPS
  • Primary reference and holdover functionality:
  • ITU-T G.812 compliant holdover
  • Leap Second Support
  • MD5 authentication for NTP clients
  • 1/5/10 MHz output
  • 1 PPS and 1 PPM
  • IRIG-B outputs
  • Standard RJ45 and BNC connectors for all inputs and outputs
  • ToD compliant to NMEA 0183 (DB9 Serial Port)
  • LCD display with back light.

Additional Features

  • IEEE - 1588v2 PTP Grandmaster
  • High bandwidth NTP Server capable of supporting up to 5000 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

Specifications:

GPS/GNSS Receiver Specifications:

  • 50 Channel GPS Receiver
  • 72 Channel GNSS Receiver
  • GPS L1 frequency, C/A Code Receiver
  • Tracks up to 12 satellites simultaneously
  • Synchronizing Time:
    • Acquisition time - Hot Start: Less than 15 sec.
    • Acquisition time - Warm Start: Less than 45 sec.
    • Acquisition time - Cold Start: Less than 140 sec.
  • GPS Signal
    • Tracking and Navigation: -162 dBm
    • Reacquisition -160 dBm
    • Cold Start -148 dBm
  • Integrated GPS Antenna
  • Accuracy of Time-Pulse Signal referenced to GPS: +/-30ns (raw), in Stationary Mode
  • Accuracy of Time-Pulse Signal referenced to GNSS: +/-20ns (raw) in Stationary Mode
  • Accuracy of Time-Pulse Signal referenced to GPS/GNSS: +/-15ns (compensated)
    (Note: with all satellites in view at -130db)
  • User configurable for “Stationary” or “Moving” Applications. May be configured for use in Portable, Automobile, Maritime Application Modes.

Network Time Protocol:

  • NTP v2, (RFC 1119), NTP v3 (RFC 1305), NTP v4, (RFC 5905), SNTP v3 (RFC 1769), SNTP v4 (RFP 2030), MD5 Authentication
  • Internet Protocol: Ipv4
  • Time Protocol: TIME (RFC 868)
  • Daytime Protocol: DAYTIME (RFC 867)

Frequency Outputs:

  • 1 x 2.048 MHz, 75 Ohms, phase-locked
  • 1 x 10 MHz, 50 Ohms, phase-locked
  • 1 x 1 PPS, phase-locked to UTC (BNC)

PTP IEEE 1588-2008 V2 Grandmaster:

  • <100ns Accuracy when locked with GNSS (GPS/GLONASS) in Stationary Mode
  • PTP Slave/Client capacity: 8, 16, 32
  • User Configurable: 1-step and 2-step Clock

PTP Profiles:

  • Default IEEE-1588v2, 2008 PTP Profile
  • Default Power Profile.
  • Power Profile: IEEE C37.238-2011
  • Ethernet Default Profile (Layer 2 multicast)
  • Telecom-2008 Profile (Layer 3 unicast, pre-standard ITU-T G.8265.1, Ipv4)
  • ITU-T G.8265.1 (Layer 3 unicast, Ipv4)
  • Communication: Unicast, Multicast or Mixed
  • Best Master Clock Algorithm (BMCA)

Antenna Specifications:

  • Integrated Antenna
  • Antenna Type: Active
  • Amplifier Gain: Typical 27dB (GPS L1 band)
  • Operating temperature: -40C to +75C
  • Reverse Polarity Protection
  • Lightening Protection: According to EN61000-4-5 Level 4.

Applications

Application 1: 4100 Series

Docs

Data Sheet (PDF)