Product features            

Introduction of Ticom digital optical fiber repeater:   

Ticom TDZ-R type GSM-R digital optical fiber repeater is a kind of railway GSM-R communication base station signal pulling remote equipment. With the digital software radio technology, the digital optical fiber near end machine converts radio frequency signal to digital signal, and then the signal is transmitted from the digital optical transceiver to the digital optical fiber remote machine. The digital signal is converted to a radio frequency signal by the remote machine, and then it is sent to the overlay area by the antenna feeder system.

The GSM-R digital optical fiber repeater developed by Ticom Tech fully complies with the TB/T3367-2016 "the technical requirements of GSM-R digital optical fiber repeater " and TJDW185-2016 "the technical requirements of digital optical fiber repeater system for railway digital mobile communication system (GSM-R) ", and has obtained the certificate issued by CRCC.

It is also the first product which passed the test on the C3 high - speed rail line in China. 

Main features:            

1. It has the time delay adjustment function, which solves the multipath interference of the repeater caused by the optical fiber delay.             

2. It has the uplink noise suppression function, which can eliminate the noise accumulation caused by the optical fiber repeater and the lifting bottom noise of the base station.            

3. The close - end machine and the remote machine have a variety of networking methods to meet the needs of various types of engineering, thus providing an advanced solution for the railway.            

4. It has radar anti-jamming and EMC technology to ensure the anti-interference ability of the equipment in the high-speed rail and electrified section.      

5. It has the function of leakage monitoring and environmental dynamic monitoring.            6. It has the interlaced coverage function, which ensures the reliability of the high speed railway.            

7. The equipment adopts a variety of thermal redundancy design, such as optical channel redundancy, control board redundancy, power amplifier redundancy and power redundancy.            8. According to the design concept of the safety product RAMS, the equipment failure can not affect the driving safety.            

9. It has fault tolerance and error correction technology for the network management transmission of data, so as to ensure the stability of the network management system operation. 

1. frequency range: downlink：930～934MHz；uplink：885～889MHz;          

2. nominal linear output power: downlink: 43dBm, 37 dBm, 33 dBm; uplink: -8 dBm;            3. power consumption: near end machine: no more than 100W;            

4. remote machine: when the nominal linear output power is less than 37dBm, it does not exceed 200W;            

5. When the nominal linear output power is no less than 37dBm, it does not exceed 300W;            

6. vector amplitude error (EVM): no more than 6% (Root mean square value);            

7. the maximum allowable input level: when the maximum allowable input level is no less than 10dBm, the repeater can work normally without damage; 

8. input / output voltage SWR: ≤1.5;            

9. noise coefficient:under the condition of maximum gain,the single noise coefficient NF≤4          

10. single transmission delay:≤18μs；           

The relaying delay of the remote machine is no more than 1.5μs (without fiber-optical delay);            Delay adjustment range: ≥100μs;            

11. light wavelengths: downlink: 1550nm, uplink: 1310nm;            

12. optical dynamic range: ≥15dB;            

13. near terminal machine: power supply voltage DC-48V;            

Installed in a 19 inch rack;            

The protection grade of the shell is IP50;            

14. remote machine: power supply voltage AC220V;            

The protection grade of the shell is IP65;            

The structure of cast aluminum is adopted with wall-hanging style            

15. working temperature: -25～+55℃; storage temperature: -40～+70℃