Janus TC: NTP and PTP to IRIG B Time Converter with Programmable Frequency Outputs
The Janus TC (Model 6115TC) from EON Instrumentation is a precision timing device. That synchronises to either NTP (Network Time Protocol) or PTP (Precision Time Protocol, IEEE 1588v2) over any IPv4 network. In addition, it outputs highly accurate IRIG B timecodes. Compact, rugged, and versatile. The Janus TC is perfect for defence, aerospace, broadcast, testing, and industrial control. It is great for applications that need synced time distribution.
🕓 Synchronised Time Outputs: IRIG-B and Frequency References
When locked to a network time source (NTP or PTP), the Janus TC generates:
- IRIG B127 (Amplitude Modulated) on a 1 kHz carrier with date encoding (50 Ω output)
- IRIG B007 (TTL DCLS) as a bit stream with date (50 Ω output)
- A third programmable output delivering one of the following:
1PPS, 10 Hz, 100 Hz, 1 kHz, or 10 MHz, phase-locked to the master clock
Accuracy is exceptional:
- 1PPS timing is maintained within ±50 nanoseconds of the master clock
- Programmable frequency outputs have phase error and jitter <28 ns
- Outputs are designed to drive 30+ TTL loads via 50 Ω coaxial lines and are short-circuit protected
🌐 Supports Both NTP and PTP Protocols
The Janus TC can operate in either:
- PTP slave mode (IEEE 1588v2 default profile) — synchronising to the most accurate local Grandmaster Clock
- NTP client mode — synchronising to a user-defined NTP server via its web interface
In both cases, it outputs accurate IRIG-B and frequency reference signals. This dual-protocol flexibility makes it ideal for bridging modern networked systems with legacy timing infrastructure.
📉 Optional OCXO for Low-Drift Holdover
When time sync is lost, the optional OCXO (-O) keeps the internal time stable with:
- Drift of less than 12 µs/hour
- Ensuring continuity during outages or disconnected operation
🌐 Embedded Web Interface
A built-in webserver (compatible with IE11, Edge, Firefox) provides:
- Mode selection: NTP or PTP
- Time server address configuration
- Status monitoring (GPS lock, IRIG output, sync source)
- Adjustable output settings for frequency and time formats
⚙️ Power & Environmental Specifications
| Feature | Specification |
|---|---|
| Power Input | PoE (IEEE 802.3af) or 10–48 VDC (5W max) |
| Form Factor | Rugged aluminium enclosure |
| Dimensions | 17.78 cm x 7.62 cm x 6.35 cm |
| Weight | 900 grams (approx.) |
| Operating Temp | –20°C to +50°C |
Its rugged build makes it suitable for vehicle-mounted, shelf-mounted, and field-deployed environments in both defence and industrial applications.
🛡️ Trusted for Mission-Critical Applications
The Janus TC is used in systems that demand precise and stable timing:
- Defence vehicle and airborne platforms
- Range instrumentation and telemetry
- Industrial control and monitoring
- Test labs and broadcast timing systems
Whether you’re upgrading legacy infrastructure or deploying a hybrid timing system. The Janus TC serves as a bridge between NTP/PTP networks and traditional IRIG-B environments.
📞 Available in Australia and New Zealand
Metromatics is the exclusive distributor of EON Instrumentation products across Australia and New Zealand. We provide local sales, service, and integration support for the Janus TC and related timing solutions.
👉 Contact us to learn more about NTP and PTP to IRIG B Time Converter.
📌 About EON Instrumentation
EON Instrumentation is a US-based manufacturer of military-qualified electronics. Including video systems, time code displays, rugged power supplies, audio systems, and interference blankers. Their acquisition of ITS expanded their offering to include precision timing devices. Such as the Janus TC, manufactured under an AS9100D-certified quality system.