Redundant Clock Reference
With the background of having delivered several thousands of GPS/GNSS receiver modules integrated with our TRedess TV and Radio Transmitters worldwide, and after a process of collecting the current and future clock synchronization demands of some of the most important network operators worldwide, TRedess is now bringing to the market the new Redundant Clock Reference, a fully comprehensive solution that adds together maximum reliability, robustness, modularity, performance and cost optimization.
The TRedess standalone Redundant Clock Reference provides accurate and stable time and frequency signals for critical synchronization applications, covering a wide range of scenarios due to the possibility to internally discipline the internal high performance OCXOs from multiple synchronization input sources, such as multiband & multi-constellation GNSS receivers, an external 1PPS input source and also PTP master clocks at the same time. The switching between these synchro- nization sources and OCXOs can be manually or automatically performed without timing/amplitude/ phase noise side effects in the 1PPS and 10MHz outputs allowing a totally seamless operation.
This solution brings total reliability and scalability to the system by including two optional redundant GNSS receivers, two redundant OCXOs and also two redundant Power Supplies (both AC/AC and AC/DC). The high reliability is also guaranteed by a “no wires” internal design. The compact and modular architecture of the equipment (with all modules accessed & extracted from the front side and being hot-swappable) brings also the advantages of an immediate/fast replacement, easy operation and also the optimization and cost of spare modules.
The TRedess standalone Redundant Clock Reference provides accurate and stable time and frequency signals for critical synchronization applications, covering a wide range of scenarios due to the possibility to internally discipline the internal high performance OCXOs from multiple synchronization input sources, such as multiband & multi-constellation GNSS receivers, an external 1PPS input source and also PTP master clocks at the same time. The switching between these synchro- nization sources and OCXOs can be manually or automatically performed without timing/amplitude/ phase noise side effects in the 1PPS and 10MHz outputs allowing a totally seamless operation.
This solution brings total reliability and scalability to the system by including two optional redundant GNSS receivers, two redundant OCXOs and also two redundant Power Supplies (both AC/AC and AC/DC). The high reliability is also guaranteed by a “no wires” internal design. The compact and modular architecture of the equipment (with all modules accessed & extracted from the front side and being hot-swappable) brings also the advantages of an immediate/fast replacement, easy operation and also the optimization and cost of spare modules.
KEY CHARACTERISTICS
⊲ Modularity and Scalability
Hot-swappable modules:
- Redundant GNSS receivers.
- Redundant high stability and low noise OCXOs.
- Redundant Power Supplies (AC/AC and AC/DC).
⊲ Highly flexible synchronization sources configuration
⊲ Multiple outputs: 10 + 1 pairs of 10MHz and 1PPS outputs.
⊲ Seamless switching for 10MHz & 1PPS outputs.
⊲ Advanced GNSS receiver features:
- Concurrent multi-constellation (GPS, Galileo, GLONASS, BeiDou) and SBAS operation.
- Concurrent multiband (L1 + L2) operation.
- Tracking up to 184 satellites at the same time.
- Built-in security for highest robustness against malicious attacks (jamming & spoofing).
⊲ NTP and PTP clock functionalities: Boundary clock, Grandmaster and Slave according to IEEE 1588 v2.
Technical Specifications
|
RECEIVER |
2 hot-swappable modules |
|
Constellations |
BeiDou, Galileo, GLONASS, GPS |
|
Number of concurrent GNSS |
4 |
|
Satellite-based augmentation systems |
IMES, SBAS, QZSS |
|
GNSS Bands |
L2OF, L2C, E1B/C, B2I, E5b, L1C/A, L1OF, B1I |
|
Security features |
Anti-jamming / anti-spoofing / secure boot / T-RAIM |
|
Supported channels |
184 channels |
|
Tracked satellites |
> 32 |
|
Acquisition - Cold start |
< 5 min |
|
Acquisition - Hot start |
< 1 min |
|
Input connector |
SMA female / 50Ω |
