Kronos Series 2 Specs

Introducing the Kronos Series 2 Satellite Clock, specifically designed for protection, automation, and control applications in power systems. Key features include high precision, multi-constellation support, output flexibility, and ethernet integration. Kronos is backed by the same NovaTech Automation sales and support policies as Orion and Bitronics products.


High Precision

The Master Clock achieves 60 nanosecond max time deviation, and includes a digital temperature-compensated backup oscillator. 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

Unmodulated IRIG-B over twisted pair, coax, or fiber
Modulated IRIG-B over coax
PPS or PPM signals
NTP/SNTP on single or dual Ethernet


Ethernet Integration

Kronos supports browser-based configuration and SNMP is available for integration into the IT environment. NTP/SNTP can synchronize any Ethernet device not supporting twisted pair or coax. Port bonding is available on the Kronos Series 2R.

Two Models AvailableKronos Series 2PKronos Series 2R
MountingPanel19” rack
Front panel height1 RU1 RU
Isolated unmodulated outputsUp to 4Up to 12
Amplitude modulated outputsUp to 2Up to 6
Optical fiber outputsUp to 2Up to 6
Ethernet ports11 or 2
IRIG-B with IEEE C37.118 extensionsB000/B002/B004/B006, B120/B122/B124/B126B000/B002/B004/B006, B120/B122/B124/B126
PPS signalYesYes
PPM signalYesYes
Alarm dry contactYesYes
Redundant power supplyNoYes
Operating voltages18-72V dc 80-300V dc / 86-264V ac (50/60 Hz)18-72V dc 80-300V dc / 86-264V ac (50/60 Hz)
Max power consumption7 VA10 VA
Unit dimensions10.6”W x 1.73”H x 5.54”D (269 x 44 x 141mm)19”W x 1.73”H x 5.54”D (483 x 44 x 141mm)
Unit weight3.1 lb (1.4kg)5.1 lb (2.3kg)


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
Active antenna
-166dBm tracking sensitivity (GPS signal)
Single-satellite operation supported
60ns time pulse accuracy (99%)
BNC coaxial connector (female)


Isolated unmodulated
200 mA drive capability at 5V level
Up to 160 ft. (50 m) cable
15 Ω output impedance
Fully-isolated (2.5kV ac, 1 minute)
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-B122/124/126 encoding
5V pp (no load) / 3.2V pp (50 Ω load) output voltage
25 Ω output impedance
BNC connectors

Backup Oscillator

Digital temperature compensated crystal oscillator
0.1 ppm typical drift
User-defined out-of-bounds alarm

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


10/100 Mbps port(s) for config, monitoring and time-based protocols
VLAN IEEE 802.1Q support
Embedded NTP/SNTP server, configurable access restrictions
SNMP agent
RJ45 connector(s)

Type Tests

IEC 61000-4-2:
Electrostatic discharge immunity test
IEC 61000-4-3:
Radiated, radiofrequency, electromagnetic field immunity test
IEC 61000-4-4:
Electrical fast transient/burst immunity test
IEC 61000-4-5:
Surge immunity test
IEC 61000-4-6:
Immunity to conducted disturbances, induced by radio-frequency fields
IEC 61000-4-11:
Voltage dips, short interruptions and voltage variations immunity tests
IEC 60255-5:
: Insulation coordination for measuring relays and protection equipment

Bonding / Link Aggregation

None: two distinct IP addresses, one for each network interface
Round-robin: alternate network packets over both interfaces
Broadcast: all packets are sent over both interfaces

Power Supply

Operating voltages: 18–72V dc or 80–300V dc /85–264V ac (50/60 Hz)
Less than 7 VA (2P) / 10 VA (2R) power consumption


-40° to +85°C (-40° to +185°F)
5% to 95%, non-condensing
IP40-rated enclosure protection

Alarm Dry Contact

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

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