PTPMaster

GNSS-disciplined PTP IEEE 1588 Grandmaster for local timing infrastructure. Distributes precise time over Ethernet using a hardware IEEE 1588 timer aligned to the GNSS receiver's PPS signal. Supports SMPTE ST 2059-2 and AES67 profiles, features an integrated web dashboard, and can also operate as an NTP Stratum-1 server.

Data Sheet

User Manual

PTPMaster – Front display view

PTP IEEE 1588v2 Grandmaster
GNSS discipline with hardware PPS
Local NTP Stratum-1 server

Operating modes: PTP only, NTP only, PTP+NTP
Two hardware PPS outputs
Real-time integrated web dashboard

IEEE 1588 hardware timer (not software emulation)
OLED display 128×64 px
OTA firmware update via Ethernet
Persistent configuration (EEPROM)

PTPMaster – PTP Grandmaster for Local Timing Networks

PTPMaster is a time source for Ethernet networks designed for applications where the time reference cannot be left to the local clocks of individual endpoints. The device uses a multi-constellation GNSS receiver as an absolute reference and disciplines a hardware IEEE 1588 timer to operate as a PTP Grandmaster on the network. In parallel, when required, it can also expose a local NTP service.

The system's timebase is not purely software. The firmware uses the ENET 1588 hardware timer as the effective timebase. The GNSS receiver provides two distinct contributions: an absolute timestamp via navigation messages and phase alignment via the PPS pulse. The device does not simply "read the GPS time" — it disciplines the hardware timer that is then used for PTP messages, local PPS output, and status services.

Supported protocols and profiles:

IEEE 1588v2: PTP Grandmaster, Layer 3, E2E delay mechanism
SMPTE ST 2059-2: Profile for broadcast infrastructure
AES67: Profile for audio-over-IP networks
NTP Stratum-1: For non-PTP hosts or mixed networks
Custom profile: Configurable for specific scenarios

Typical use cases:

Broadcast: Infrastructure with SMPTE ST 2059-2 profile
Audio-over-IP: Networks with AES67 devices
Laboratories: Testing, verification and measurement
Embedded systems: Local timing reference source
Isolated LANs: Segmented technical installations

The web dashboard lets you verify in real time: current clock time, GNSS fix status, number of visible and used satellites, constellation distribution, satellite sky plot, PTP offset, path delay, lock count, Grandmaster status (GPS-LOCK or HOLDOVER), active PTP profile, and NTP parameters. For a technician, this means being able to quickly distinguish between a GNSS reference issue, a PPS acquisition problem, a servo convergence issue, or a client-side network problem.

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