Based on this, Beijing Ruiguang Extreme Digital Technology Co., Ltd. has launched a new generation of IDM MSTP-LD integrated service optical transmission equipment based on MSTP technology transmission and access to meet the needs of the market, which can satisfy broadband users and broadband users. The incoming demand, at the same time, can also meet the requirements of users with greater capacity and provide more reliable communication protection.
System Information Flow Voice Business Process
Schematic diagram of the flow of voice services in the local SDH network. The device shown in the figure above. The voice services of each node are converged to the central node device through the STM-1 optical interface. The signaling interface of the central node exchanges the E1 interface of the disk (supports No.1 and No.7). , PRI signaling) access to the local program-controlled switch for exchange, can achieve the central node and the voice communication between the nodes. As shown in the solid red line above. The voice services between the remote nodes are exchanged through the STM-1 optical interface to the central node's gateway switch, which is switched as shown by the blue solid line in the figure.
A schematic diagram of the flow of voice services across the SDH network As shown in the figure above, the MSTP devices can form a ring network and a chain network. The voice services of each node are converged to the central node device through the STM-1 optical interface, and the E1 interface (supporting No.1, No.7, and PRI signaling) of the switching gateway of the central node is used to access the PBX. It can realize the communication between the central node and each node. As shown in the solid red line above. The voice services between the remote nodes are exchanged through the STM-1 optical interface to the central node's gateway switch, which is switched as shown by the blue solid line in the figure.
The device group SDH network shown has the following features:
 The equipment can be composed of star network, ring network, and chain network, which can realize the access of voice, Ethernet, and E1. The whole network is unified with network management, which facilitates monitoring and management of the entire network.
 The IDM-MSTP device can be configured with our company's IDM series of products to form a multi-level transmission network. Users can flexibly configure the type and quantity of transmission services to meet the different service requirements of users.
Ethernet business process
The schematic diagram of the flow of Ethernet services is shown in the figure above. The STM-1 converged EOS/EOPDH bridge disk accesses the access routers of the central node to implement isolated transmission of each Ethernet. Different Ethernet networks can be allocated differently. Bandwidth and priority etc. The Ethernet service of each node is connected to the converged EOS/EOPDH bridge disk, which enables the interconnection of Ethernet services between each node and the center. On the remote device, the number of ports and bandwidth for different purposes of Ethernet (such as office network, training network, etc.) can be allocated according to requirements. The connection process is shown by the red, green, and blue solid lines in the figure. In the center node, you can set the port traffic and priority for the Ethernet through the network management terminal.
The device group SDH network shown has the following features:
以太网 Ethernet isolation: MSTP devices can provide Ethernet interfaces to users. Each Ethernet interface can implement physical isolation or exchange. VLAN isolation can be used to implement VLAN isolation between two ports.
以太网 Ethernet bandwidth is guaranteed: Compared with traditional devices, this device can effectively guarantee the transmission bandwidth of Ethernet and avoid the bandwidth limitation of the shared Ethernet.
The audio and video command business process audio and video automatic exchange system is a new generation of video and audio remote command platform with independent intellectual property rights launched by our company on the basis of E1 transmission. The system does not change the usage habits of ordinary program-controlled telephones, users can independently choose Communication object. The system uses MPEG-4/H.264 compression technology, high-definition, video and audio transmission delay is small, to achieve real-time video and audio transmission capabilities. The system integrates video and audio command, video conferencing, video surveillance, video intercom and other functions into one, and realizes the two-way selective communication between the center of the communication control and the user terminal, which satisfies the demand for audio and video remote command and dispatch.
The system plan is analyzed as follows:
1) Advanced:
 Adopt video transmission based on E1 leased line, transmission delay is small, and the existing network dedicated line resources can be fully utilized;
 Advanced MPEG-4/H.264 video coding technology with high compression ratio and good image quality;
ç¬¦åˆ Conforms to the use of ordinary automatic telephones, enabling the automatic exchange of video and audio;
实现 Realize two-way selective communication between the center end and the user terminal.
2) Integration: The system has realized video and audio command scheduling, video surveillance, video conferencing, and video intercom functions.
3) Compatibility: Support multiple video surveillance system access;
4) Security: Unique multi-level, multi-privilege command and dispatch management;
5) Can set the priority: users with high priority can insert monitoring at any time, which is convenient for viewing field data;
6) Real-time performance: support users with multi-level real-time command and dispatch;
7) Multi-service: A single user terminal supports multiple service applications.