Network operators and data-centers need to inject high accuracy synchronization into their legacy networks.We offer world’s smallest PTP/NTP Time Clock & redefine PTP phase & frequency synchronization for access networks , which  can operate as a

  • Primary Time Clock
  • Grandmaster Clock
  • Source of Synchronous Ethernet

It is specifically engineered to drive precise IEEE 1588V2 PTP phase and frequency synchronization.It’s small-form factor pluggable (SFP) is a powerful and versatile time server with a built-in GNSS receiver and the smallest footprint and most compact design on the market. It enables accurate phase and frequency synchronization using PTP, Sync-E and NTP at the network edge with zero-adding footprint. Its small form factor and rich feature set enable a versatile range of deployment options for enhanced synchronization network performance.


  • It support Layer 2 and Layer 3 PTP transport
  • It is capable of unicasting and multicasting at the same time
  • Fully compliant with multi-source agreements for total interoperability
  • Highly accurate timing delivery and assurance with smallest footprint on the market
  • Built-in GNSS receiver enabling PRTC and IEEE 1588v2 grandmaster (GM), boundary (BC), slave clock (SC) and NTP server functionality
  • Compliant with SFP multi-source agreement (MSA)– no need for additional space and power
  • Advanced jamming and spoofing detection on device and NMS levels
  • Multiple fallback options – high-end stratum 3E oscillator, SyncE and PTP can be used in the event of GNSS outage
  • OEM product customization option for vendor branding

Applications in your network-Ultra-compact and cost-effective synchronization

  • Radio access network synchronization including 3G, 4G, 5G (femtocells and small cells as well as macro cells)
  •  Cable networks (DOCSIS 3.1) and PON synchronization
  • GNSS receiver upgrade for small cells
  • Modernized power utility and media broadcast networks
  • Time-as-a-service into data center, financial, health and media networks
  • Upgrade of aggregation switches for delivering precise frequency and phase sync via PTP and SyncE
  • PTP boundary and slave clock enabler to existing network elements such as switches and microwaves

Main applications

  • 1588v2 PTP grandmaster, boundary and slave clocks
  • PTP to Sync-E and Sync-E to PTP conversion
  • GNSS receiver operating as PRTC and PRC
  • NTP server

PTP master modes of operation

  • PTP Telecom profiles:
    −− ITU-T G.8265.1 & Telecom2008 frequency delivery profiles
    −− ITU-T G.8275.2 time/phase delivery profile
    −− ITU-T G.8275.1 time/phase delivery profile (full timing support) also used for DOCSIS 3.1
  • PTP enterprise profile (mixed IP multicast and unicast)
  • PTP power and utility profiles:
    −− IEC/IEEE 61850-9-3
    −− IEEE C37.238-2011
    −− IEEE C37.238-2017
  • PTP Broadcast profiles:
    −− SMPTE ST 2059-2
    −− AES67 Media Profile
  • Grandmaster simultaneous support for multiple profiles

PTP slave modes of operation

  • PTP Telecom profiles:
    −− ITU-T G.8265.1 & Telecom2008 frequency delivery profiles
    −− ITU-T G.8275.2 time/phase delivery profile
    −− ITU-T G.8275.1 time/phase delivery profile (full timing support)
  • IEEE1588v2 default PTP profiles over L3 (Annex D) and L2 (Annex F)
  • PTP enterprise profile (Mixed IP multicast and unicast)
  • Designed to support power and broadcast profiles (HW ready)

PTP features

  • Up to 64 unicast slaves at 128pps
  • Full featured IEEE 1588-2008 PTP grandmaster, boundary and slave clocks
  • Assisted partial timing support (APTS) – PTP input to backup GNSS outage over network with partial/no timing support
  • 1-step clock
  • Dedicated or common IP PTP interface
  • VLAN (IEEE 802.1Q) or untagged
  • Sync-E input to PTP output (frequency) conversion
  • Conversion between PTP profiles
  •  Maintain PTP slaves list
  • Fixed asymmetry compensation
  • Ethernet interface
  • SFP or combo SFP/SFP+ 1000Base-X (MSA compliant)

1PPS/CLK out

  • User configurable output: 1PPS/10MHz/2.048MHz
  • RP-MMCX connector (50 ohms) Synchronous Ethernet (Sync-E)
  • Compliant to the relevant sections of ITU-T G.8261 /G.8262 / G.8264
  • Supported on ingress and egress
  • G.811 compliant Sync-E primary reference clock (PRC) when locked to GNSS
  • Ethernet synchronization message channel (ESMC)
  • Sync-E input for time holdover during GNSS outage

NTP Server

  • Smallest NTP server form factor
  • Security-hardened NTP server with Hardware-based responder
  • Stratum 1 NTP server when locked to GNSS
  • NTP v1, v2, v3 ,v4 and SNTP over IPv4 /IPv6
  • Hardware-based timestamping
  • Within +/–100nsec from UTC
  • Support PTP and NTP on same port
  • PTP to NTP translation
  • Up to 2000 transactions per second
  • PTP backup in case of GNSS outage
  • Stationary or moving platforms

GNSS receiver

  • 72-channel multi-GNSS engine
  • Concurrent GNSS (dual frequency)
  • Supports single satellite timing modes
    −− Survey fixed location
    −− Configurable fixed location
  • Supports navigation mode
  • Configurable satellites SNR and elevation masks
  • Advanced spoofing and jamming detection on device level
  • AI based spoofing and jamming detection based on NMS GNSS assurance
  • GPS / QZSS L1 C / A and GLONASS L10F, BeiDou B1
  • Supported modes: GPS / GLONASS / BeiDou / GPS+ GLONASS / GPS+ BeiDou, GPS+SBAS (QZSS ,WAAS,EGNOS, MSAS)
  • User configurable antenna cable delay compensation
  • Voltage to antenna +3.3VDC
  • Antenna connector SMA-F (50 ohms)

Internal oscillator

  • OCXO Stratum 3E (20-55°C, ΔT=+/-20ºC)

Frequency accuracy

  • G.811 compliant PRC while locked to GNSS

Time and phase accuracy

  • G.8272 / G.8273.1 compliant PRTC (±100nsec from UTC,MTIE<100nsec) while locked to GNSS
  • During GNSS outage: time holdover using a G.811 PRC / G.8272 PRTC Sync-E input
    −− Traceable to G.811 PRC: Time Error < UTC +/-1μsec for 24 hrs
    −− Traceable to G.8272 PRTC: Time Error < UTC +/- 1μsec for 72 hrs


  • GNSS operation and general fault indication status LED

Monitoring and assurance tools

  • Clock Accuracy for up to two clock probes – computing TE and TIE of physical clocks
  • Calculation TE/TIE between physical source and reference signals
  • Programmable source and reference signals including SyncE, GNSS, PTP recovered clock.
  • TE/TIE raw data collection and export to server
  • Clock Analysis for up to two PTP clock probes – packet TE/TIE
  • Calculation of packet TE/TIE between physical reference signal and timestamps within the PTP packets
  • Programmable reference signals including SyncE and GNSS
  • TE/TIE raw data colelction and export to server

Management and security

  • In-band management (over PTP / Sync-E port)
  • Remote CLI – Telnet & SSH (Secure Shell)
  • Separate MGMT IP & PTP address
  • VLAN and untagged
  • System software download via TFTP & SCP (secure copy)
  • Enable to disable each of the protocol via CLI
  • Alarm log
  • Syslog
  • Remote authentication via RADIUS
  • Remote, secured backup and restore
  • Remote, secured SW upgrade
  • Low touch provisioning using configuration file
  • Multi-level user access
  • Access control list (ACL)
  • Full management using SNMP v2 / v3 including authentication and encryption
  • Alarms, inventory and traps reporting to NMS
  • Managed by ADVA Ensemble Controller and Ensemble Sync Director, including GNSS assurance toolkit

Regulatory and standards compliance

  • ITU-T G.8261, G.8262, G.8264
  • ITU-T G.8272, G.811
  • ITU-T G.8265.1, G.8275.1. G.8275.2
  • IEEE 1588v2 (PTP)
  • ETSI EN 300 386 V1.6.1
  • EN 55024
  • EN 55022 Class-B
  • FCC CFR 47 Part 15 Subpart B
  • ANSI C63.4 Class-B
  • IEC/EN 61000-3-2
  • IEC/EN 61000-3-3
  • IEC/EN 61000-4-2 (ESD): ±15 kV / ±8 kV (air/contact)
  • IEC/EN 61000-4-3 (RI)
  • IEC/EN 61000-4-4 (EFT): 1 kV / 50 A (5/50 ns)
  • IEC/EN 61000-4-5 (Surge): 4KV (10/700 μs)
  • IEC/EN 61000-4-6 (CI)
  • EN 60950-1:+A11, +A12, +2 (SAFETY)
  • RoHS compliance


  • Operating temperature: -40 to +80°C / -104 to 176°F
  • Storage temperature: -40°C to +85°C / -104 to 185°F
  • Humidity: 5 to 95% (non-condensing)

Power consumption

  • Max power consumption <1.5W (T >20°C)

Optional accessories

  • GNSS (GPS/GLONASS/BeiDou) antenna kits 10/20/60/120/150m (32.8ft/65.6ft/ 196.85ft/393.7ft/492.1ft), including indoor and outdoor cables,roof antenna, lightning protector and mounting kit
  • Patch window antenna
  • 1:2/1:4/1:8 GNSS splitters
  • RP-MMCX to BNC adapter cable

Ready to learn more? Contact us to find the right module cards and configurations for your NTP/PTP time server needs.