Gps Clock

Aeron standalone GPS is a ready to integrate product with configurable output. It can be used for GPS clock synchronization, position indication and as a navigation device. In applications such as server time synchronization, train time / platform / station time synchronization, real-time clock, ARN-SGPS is an ideal choice. It can also be used as a personal navigation device using a PC or a laptop.

The ARN-SGPS is available with or without enclosure as GPS engine board. The unit comes with a cable to integrate it directly with PC via serial port. It is highly configurable to give out time, position, heading, velocity or all the NMEA sentences. The user can choose the type of output required to best satisfy the application. With all these features, ARN-SGPS is still a really affordable product.

Traditionally, for public areas like railway stations and bus-stands, a master slave configuration for clocks has been used. In these obsolete systems, the master clock is closely monitored by staff for its accuracy and the slave clocks are periodically synchronized with the master clock. The traditional master-slave configuration requires a wired communication network which has its own installation costs and maintenance cost, making the total capital cost and maintenance cost of the system much higher.
With the fall in cost of GPS hardware, GPS clocks nearly same as traditional clocks but have no network and/ or maintenance requirements. The clocks come with a RTC with battery back up which take care of any power outages and ensure a 24X7 accurate operation.

Target Applications:
* Domestic/International Airports
* Industries
* Schools, Colleges
* Railways
* Hospitals
* Malls
* Expo centers
* Super Markets
* Defense Sites
* Control Rooms

Salient Features:
* GPS based time synchronized Digital Clock
* Accuracy of time in nano sec.
* Redundancy-->> RTC back up in case of GPS signal are weak.
* Master /Slave Configuration available.
* Multi master Configuration available.
* Low Cost Solution.
* No maintenances cost / no periodical reconfiguration of clock.
* Hi tech GPS antenna with very low ~1 VSWR for best performance.
* RF/RS485/LAN Communication port ready for Master -Slave configurations
* Clock available in many formats -->> hr:min:sec / hr:min / hr:min:sec: AM/PM
* Date/Day/Month/Year Display available ** Optional.
* Display Size available in 2"/4"/6"/8" 7 Segment Module/Led based modules.
* Integration is possible with Moving Message Display.
* Time for Different Country possible.(for example : India/Russian/American Standard time is required to be displayed on same clock or on different Clock either way is possible.


Display Size: 2.3"/4"/6"/any other, Seven Segment or LED based

GPS synchronized clock system offers accurate time to all clocks in the system. The GPS clock synchronization system consists of a master clock and multiple slave clocks. The master clock communicates with all the salve clocks via wired/wireless medium in the system to provide them with an accurate time source. The objective of the GPS synchronized clock system is to make sure that all clocks in the system display the same time. Regardless of which part of the building you are in, the time shown by the clocks will be uniform and accurate.

GPS synchronized clock system is a cost-effective design to synchronize the clock to accurate time with respect to universal time coordinates. In GPS synchronized clock system, the master clock receives time from either an NTP server or GPS receiver, then the time is distributed to all slave clocks in the system and ensuring that all clocks stay synchronized and do not drift from their accurate time. GPS clocks continue to work during power outages, adjusting to re-acquire the precise GPS time once power is restored. In the case of non-availability of the GPS signal, the slave clocks have an inbuilt RTC ( Real-Time Clock) to continue showing the accurate time.GPS synchronized clock automatically adjusts for Daylight Saving Time ( DST ). The slave clock is wall/panel / tabletop mountable. The cabinet is made up of Mild Steel or Aluminium or Stainless steel as per customer requirements. The slave display can show either UTC time or local time. Slave clocks are available in 50mm, 100mm, 144mm & 300mm sizes.


FEATURES


High bright 7 segments LED displays to show GPS Time
5 x 7 Dot Matrix LED displays day of the week
Accepts Time Signals like NTP, IRIG-B and RS485/RS232
Available in 50mm, 100mm, 144mm & 300mm sizes
Time updates with high stability oscillators option available
The input power supply can be customized
10/100MBps NTP & SNTP Ethernet for time input
Power Over Ethernet option available
Display running with battery backup option available
Wireless display option available
It can show either UTC or Local time
Adjustable Time Zone, DST, 12/24Hrs in Ethernet Display
Rugged and Robust displays
Isolated and protected Interfaces.
Battery backup provided for the time update
Cabinets made up of MS/SS/Aluminium
The cabinet is powder coat finished
Wall / Panel / Tabletop mountable
Protection class IP 20
Time signal Input status and GPS lock Status can be identified with colon LEDs
Front plate covered with Red color acrylic sheet

The ct-dz600a satellite synchronous clock (which is also a network time server) is developed with modular hardware design in a 1u chassis. It receives gps or bd satellite time source, supports multi-format outputs (ntp, sntp, irig-b, pulse, serial ), brings you a highly accurate, powerful and scalable time synchronization server widely used in telecom networks, communications, railway systems as well as power industry etc.

Functions
Stratum 1 operation via gps or bd satellite
Internal precision time-keeping via ocxo
3 optional module slots allow multi-format outputs (ntp/sntp, irig-b, pulse, serial)
Time delay compensation mechanism, compensation range: 20ns~500ms
1x 10/100m ethernet interface for management
Secure web-based management
Snmp simple network management supported


Features
Flexible modular design, easy for outputs configuration
Nanosecond time accuracy to utc
Excellent internal holdover performance when loss of time source
High-precision time synchronization satisfies enterprise class users
3 years limited warranty
Certified ce, rohs


Specifications
Time reference:gps l1 ?bd b1?bd &gps?glonass(optional)?galileo(optional)
OutputsNtp/sntpNetwork interface10/100m ethernet port, rj45
Network time protocols:Rfc-1059(ntp v1)rfc-1119(ntp v2)rfc-1305(ntp v3)rfc-5905(ntp v4)rfc-2030(sntp)
Ntp time sync accuracy:1ms~100ms(rely on the network environment)
Ntp access ability: 1000 requests per second
Time performance
Time accuracy to utc=100 ns (rms)
Holdover accuracy=40µs (after 1 hour) ; =90µs (after 2 hours)
(lose of gps after 30mins locked.)
Installation19?/ 1u rack mount

Ct-ddt200 series digital clocks
(ntp/irig-b/serial)
Ct-ddt200 series digital clock receives time signal from a master clock, supports ntp?irig-b and serial input, provides highly visible time displaying in public places like hospital, school, train station, airport and bank etc.


Key features
Multiple time signal inputs: ntp / irig-b / serial
Time synchronization accuracy = 10ms
High internal holdover accuracy when loss of time signal
High-brightness digital tube with bright and uniform color
Adjustable of light brightness, to satisfy different situation demands
Support ceiling suspending, wall hanging and embedded installation
Support yy:mm:dd, hh:mm:ss, week / temperature / humidity display
Display content, single or double screen, light color, size are all customizable

Functions
Stratum 1 operation via gps and/or bd satellite
Support multi-format inputs: ptp, irig-b, bits, 10mhz
Support multi-format outputs: ntp, ptp, irig-b, pulse, serial, bits, 10mhz
1x 10/100 base-t ethernet interface for management
Internal precision time-keeping via ocxo
Support automatic selection of valid time source
Support iec61850, iec60870-5-104 standard
Fault alarm functions for time source, board cards, power supply and so on.
Time delay compensation mechanism, compensation range: 20ns~500ms
Time continuity judgment mechanism to avoid output time discontinuity
Rigorous frequency calibration algorithm, to obtain high stable frequency holdover accuracy

Features
Flexible module card design, easy for outputs configuration
2 x internal frequency source are configurable, to ensure the internal time reliability and security
Support duplex, hot standby, cold standby configuration
Lcd display with man-machine interaction brings a simple operation
Adapt to the strong electromagnetic interference environments
Redundant dual power supplies
19’’ / 4u rack mount
Specifications
Time reference: Bd b1, gps l1, bd & gps
Inputs:Ptp, irig-b, bits, 10mhz
Outputs:Irig-bTtl?rs422/rs485?rs232?fiber?idle contact
Pulse(1pps/1ppm/1pph):Ttl?rs422/rs485?rs232?fiber?idle contact
Serial (tod)Rs232
Ntp/sntpRj45
Ptp over ethernetRj45
Ptp over e1Bnc
10mhzBnc
BitsBnc
Time performance:
Time accuracy to utc=100ns(rms)
Holdover accuracy=1µs/hr (after 24 hours locked)
Frequency accuracy=1e-12/day (after 24 hours tamed)
Frequency stability