Kronos Series 3 Specs

Introducing the Kronos Series 3 Satellite Clock, specifically designed for applications in power systems. Key features include high precision, multi-constellation support, output flexibility, and Ethernet integration. Kronos clocks are backed by the same NovaTech Automation sales and support policies as Orion and Bitronics products.


High Precision

The Master Clock supports IEEE1588-2008v.2 grandmaster functionality, and is available with standard temperature controlled crystal oscillator (TCXO) or optional oven controlled crystal oscillator (OCXO). It achieves 20 nanosecond max time deviation (with PTP). Antenna cable-delay compensation further enhances accuracy.


Multi-Constellation Support

Kronos is more than just a GPS clock. It can lock onto any of the GNSS constellations: GPS, GLONASS, BeiDou, or Galileo. This means more assurance of a fast lock and less time in holdover.


Output Flexibility

IEEE1588-2008V.2 (PTPv2)
Unmodulated IRIG-B over twisted pair, coax, or fiber
Modulated IRIG-B over coax
PPS or PPM signals


Ethernet Integration

Kronos supports browser-based configuration and SNMP. Can synchronize any ethernet device over PTPv2 and/or NTP/SNTP in a simple or PRP/HSR network.

Kronos Series 3R
Mounting19” rack
Front panel height1 RU
Isolated unmodulated outputsUp to 12
Amplitude modulated outputUp to 4
Optical fiber outputs Up to 4
Ethernet ports4 SFP slots (copper or fiber) + 1 Gigabit RJ45 port for configuration and monitoring
PTP/IEEE1588-2008v.2 supportYes
NTP/SNTP supportYes
PRP/HSR (IEC 62439-3) supportYes
Holdover oscillatorTCXO (standard) or OCXO (optional)
IRIG-B with C37.118 extensionsB000/B002/B004/B006, B120/B122/B124/B126
PPS signalYes
PPM signalYes
Alarm dry contactYes
Redundant power supplyOptional
Operating voltages 18-72V dc or 80-300V dc / 86-264V ac (50/60 Hz)
Max power consumption30VA
Unit dimensions19”W x 1.73”H x 6”D (483 x 44 x 152mm)
Unit weight 5.5 lb (2.5kg)


GNSS Receiver

Multi-constellation 72-channel
L1-C/A (1575.42 MHz) GPS signal
GPS, GLONASS, BeiDou, Galileo receiver
E1-B/C (1575.42 MHz) Galileo
B1 (1561.098 MHz) BeiDou
Antenna cable delay compensation
-166dBm tracking sensitivity
Single-satellite operation supported
Antenna cable open and short-circuit detection
20ns (99% clear sky)


Isolated unmodulated
200 mA drive capability at 5V level
Up to 160 ft. (50 m) cable
15 Ω output impedance
Fiber optic
820nm wavelength
Optical power: -15.8 dBm into 50/125 μm fiber (-12 dBm into 62.5/125 μm fiber)
ST connectors
Amplitude modulated
IRIG-B124 enconding
5V pp (no load) / 3.2V pp (50 Ω load) output voltage
25 Ω output impedance
BNC connectors

Holdover Oscillator

Typical drift
TCXO: 0.1 ppm
OCXO: 1 ppb
User-defined out-of-bounds alarm


1 RJ45 10/100/1000 Ethernet port
4 SFP slots
DHCP client support
VLAN IEEE 802.1Q support
IEEE1588-2008V.2 (PTPv2)
Embedded NTP/SNTP server
SNMP v1, v2c, v3 agent support
PRP/HSR support

Dot Matrix Display

5.0” x 0.7” (127 x 18mm) “hyper red” (630nm) LED
User-configurable content: date, time and/or time zone / offset
Clear text alarm messages

Daylight Savings Time

Pre-defined DST rules for North America, Brazil, Europe
Custom rules

PTP Profiles

Power Utility


L1 antenna for GPS, Galileo, GLONASS, and Beidou
High gain, low noise, high out-of-band rejection, robust anti-jamming design
Built-in lightning protection meeting/exceeding IEC 61000-4
Ruggedized IP67 enclosure
Operating temperature -40°C to +90°C (-40°F to +194°F)

Alarm Dry Contact

Type C
Breaking capacity: 300 mA @ 300 V dc (resistive load)

Power Supply

Operating voltages: 18–72V dc or 80–300V dc /85–264V ac (50/60 Hz)
30VA power consumption


-40°C to +70°C (-40°F to +158°F)
5% to 95%, non-condensing
IP40-rated enclosure protection

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