Beijing LJ Technology Co., Ltd.

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Railway Mobile Communication Core Network Special Equipment

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GPRS interface server—GRIS

GRIS is an important network element of GSM-R network, located between CTC system and GSM-R network, responsible for forwarding dispatching command, train number check information, train stop/start information, etc. between CTC and CIR.

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product description

Product Features
GRIS complies with railway standards such as "Wireless Transmission System for Dispatching Command Information of Application Services in GGSM -R Digital Mobile Communication System" (TB/T 3231-2010), "Wireless Transmission System for Train Number Verification Information" (TB/T 3325-2013), and "Technical Specifications for Function Optimization and Supplementation of CIR and LBJ".
The equipment adopts a 1+1 redundant hot standby mode inside, which greatly enhances reliability.
Supports business statistics functions such as GRIS forwarding success rate, dispatch command sending success rate, dispatch command retransmission rate, train route warning sending success rate, and train route warning retransmission rate.

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