Can Lock on Packets and Ethernet and or TDM back-haul
Description:
GPTiMe™ is a digital PLL with a GPS receiver that performs the special signal processing required for delivering the output frequencies free of the input impairments (such as jitter, wander, On/Off and phase hits) as per the Telcordia, ITU-T and IS-95 standards.
Based on TeraSync’s internationally acclaimed ATiMe platform, GPTiMe™ is the most advanced unit available in the marketplace today, providing a unique ability to lock onto the back-haul signal and the GPS signal as well as combining both of these signals for perfect phase and frequency accuracy.
It is equipped with a GPS receiver used for obtaining GPS satellite transmissions from which a jittered 1PPS signal is derived. GPTiMe™ locks onto the derived GPS signal, enabling the synchronization of a base station to GPS/UTC time.
Temperature and Aging Compensation Special (Patent Pending) Algorithm will enable using a low cost oscillator to achieve a HoldOver Accuracy of a double Oven 10E-10 -in a very low cost manner.
The Back Haul inputs can be either T1/E1 (and T12), or an IEEE 1588 or TeraSync proprietary solution.
It can serve as a 1588 Master Clock using the GPS signals and a slave clock as well.
GPTiMe can serve the whole range of Wireless methods, CDMA2000, GSM, UMTS and WiMax - with a HoldOver Time Keeping of 2.5 microsecond through 50 microsecond for up to 10 hours depending on the customers various needs.
GPTiMe is available with 10MHz, 2.048MHz and 1PPS outputs as well as others that can be provided upon request.
For WiMAx Stand loan Sync station –the GPTiMe module is available from the shelf with any required accuracy.
Applications:
Next generation cellular and WiMAx base-stations
WCDMA and WAN
E911 location systems
Ethernet edge synchronizer for TDMoIP and other CBR (Constant Bit Rate) Ethernet and IP solutions
Core and access IP switches
DWDM, SONET, SDH, Cross-Connect and transmission products
Standard reference
Features:
IEEE 802.16E
IS-95 compliant
Telcordia GR-1244-CORE Stratum 2/3E standard compliant
Telcordia GR-499-CORE standard compliant
Selective pull-in ranges and hysteresis ranges as per Telcordia GR-253-CORE and/or GR-1244-CORE
ITU-T G.812 type II recommendations compliant
Back-haul traceable
On-board OCXO (Rb optional) and GPS Receiver
(ext. OCXO/Rb optional)
Holdover stability of 8 usec per 24 hours
1 PPS output signal coherent with GPS/UTC
Supports a wide range of output frequencies
Continuous monitoring of frequency measurements for all of the input references
Comprehensive host management capabilities
Input reference switchover:
- Automatic or manual hitless switchover
- Revertive or non-Revertive switchover,
user selectable
Master/Slave redundancy of 2 or more GPTiMe modules
Phase-copy functionality where the slaves follow the master’s phase
Mechanically functional and compatible with TeraSync’s BITSync BITS interface and SLC (Small Line Card) line interface timing unit modules
Host interface and on-board software field upgrade functionality
