CRSCD, founded in 1953, is a subsidiary wholly owned by China Railway Signal & Communication Corporation. Since its foundation, CRSCD has completed more than 7000 communication, signal, electrical, and automation engineering designs and undertaken a great number of State Council's pilot projects and national key projects. CRSCD has creatively developed more than 70 technologies and first applied them to the railway and subway industries. Also, CRSCD has promoted widespread application of hundreds of new technologies. With all these achievements, CRSCD undoubtedly ranks as China's leading company in the railway security control and IT technology industry.
As a leading railway communication device provider in China, CRSCD has cooperated with Huawei for a long history. To consolidate their partnership, CRSD started technical cooperation with Huawei in 2012. In April 2013, they signed a strategic cooperation memo to set up a joint innovation center. In this approach, they integrate their advantageous resources to innovate railway communications technologies, products, and solutions and provide railway customers with more efficient, reliable, and secure information and communications technology (ICT) solutions.

Railway trackside integrated communication solution


In the past, only voice could be transmitted between railway sectors through copper cables. People could only hear each other but not view. The railway trackside integrated communication solution utilizes the advanced passive optical network (PON) technology to build the railway trackside integrated communication platform. This platform can provide a full range of services, such as voice, data, video, emergency communication, as well as reliable and large-bandwidth transmission channels and service applications for railway trackside communication.


1.Provides large-bandwidth data channels to meet big data service development requirements, and offers multiple voice services as well as data and video services to meet emerging service requirements.

2.Powers on railway trackside devices in multiple ways for different scenarios.

3.Remotely and intuitively manages network devices in centralized mode by domain, rights, or time.

4.Adapts to harsh environments along railways and protects communication links with considerate reliability designs.

5.Supports system-level, application-level, and MAC address security defense to guarantee network-wide security.

6.Provides holistic quality of service (QoS) functions to ensure that the bandwidth, delay, jitter, and packet loss rate reach the expected level during network communication.


1.Deploys the PON network to prevent voice quality from being impacted by unqualified electrical indicators.

2.Supports large-bandwidth access from voice, data, and video.

3.Relies on Wi-Fi to implement real-time backhaul of visualized railway mobile emergency operation data to achieve all-wave operation.

4.Backs up links in redundancy mode to prevent communication interruption upon single point of failure (SPOF).

5.Deploys optical fibers for long-distance trackside communication.

6.Uses optical fibers instead of copper cables (one optical fiber for sweeping communication) to reduce the quantity of required cables and lower the construction and maintenance costs.

7.Supports GUI-based unified O&M that allows users to remotely view the device running status in real time and quickly rectify faults.

The railway trackside integrated communication solution functions as the integrated service access platform to provide access from voice, video, and data services at railway sectors and stations. Logically, this solution consists of three parts: trackside devices, station devices, and central network management system (NMS).

Huawei and CRSCD join hands to give play to their edges and complete developing and integrating the three parts. In this solution, Huawei provides hardware such as PON, PBX, switch, and solar supply unit and network management software such as U2000 and eSight for smooth communications at railway sectors and stations. With 61 years of experience in the railway industry, CRSCD has unique understanding of the railway trackside communication environment and service characteristics. On this basis, CRSCD designs the trackside communication column and power control module and customizes the operations support system (OSS) unified NMS system based on Huawei's U2000 and eSight software. The unified NMS system can uniformly configure and manage all trackside communication devices and services.

By location, the railway trackside integrated communication solution consists of:

1.Trackside devices: Trackside devices are installed in the trackside communication column and mainly include function modules such as PON, optical network unit (ONU), optical splitter, and VoIP voice gateway, power supply unit, and external interfaces. The trackside communication column is deployed at the railway shoulder, bridge, crossing, and tunnel. It provides the call and Ethernet interfaces for access from trackside voice (automatic, trackside, protection, and manual rescue calls), video, and data services. Then, railway construction and maintenance personnel, railway inspection personnel, and public service personnel can communicate with each other to ensure the proper running of railway services

2.Station devices: Station devices are installed in the railway station communication equipment room and mainly consist of optical line terminals (OLTs), PBXs, and switches. These devices converge service data uploaded by trackside devices, exchange voice data, and transmit data of different service types to destination systems. Additionally, these devices also provide voice and loop trunk interfaces for the scheduling switch and automatic phone network, support the dedicated emergency rescue line, and connect to the trackside protection phone.

3.Central NMS: Huawei and CRSCD jointly develop the trackside integrated communication NMS. (Auxiliary applications are not contained in the trackside integrated communication system, including the emergency rescue center, video surveillance system, and network technology center.) In details, Huawei provides the lower-layer NMS to manage Huawei's devices, and CRSCD develops the upper-layer OSS NMS and connects it to the lower-layer NMS through Huawei-provided northbound interface. CRSCD also develops network management functions for purchased and newly developed parts, so all network devices can be managed by the OSS NMS. The trackside integrated communication NMS, which is deployed in the railway bureau's central equipment room, manages and configures trackside and station devices in centralized mode, uniformly monitors the system running status, and automatically reports alarms when faults occur on devices.

CRSCD official website:

CRSCD signed a strategic cooperation memo with Huawei to set up a joint innovation center. To know more information, visit:


In October 2013, the interoperability testing (IoT) between Huawei's railway trackside integrated communication solution and CRSCD's railway trackside communication system was performed successfully.

Cooperation news:

On October 16, 2013, Huawei and CRSCD collaborated to demonstrate the railway trackside integrated communication solution in the railway communication maintenance and management training session delivered to China Railway Corporation.

Huawei-CRSCD joint exhibition (the first rolling banner on the right shows the railway trackside integrated communication solution):

Railway trackside integrated communication devices and service applications jointly displayed by Huawei and CRSCD: