Project Background

The city’s power fiber-to-the-home project, utilizing OPLC technology and EPON passive optical network communication technology, successfully achieved power fiber-to-the-home integration. The power EPON integrated access system supports various business types, including Ethernet/IP and RS232/485 serial port communications. It accommodates multiple power communication protocols such as IEC60870-5-101, IEC60870-5-104, 61850 (substation automation), CDT, DNP, and ModBus (transparent transmission).

Overall Design Scheme

By employing EPON technology, the optical fiber communication system of the distribution network is effectively optimized, replacing traditional transmission methods like GPRS/CDMA and 230MHz. EPON has thus become the preferred communication transmission platform for the distribution network.

Solution Description

The power grid PON network adopts a comprehensive protection switchover networking scheme, featuring redundant backup between the dual PON port downlinks and a gigabit uplink bundled to access the substation optical network.

• OLT (Optical Line Terminal): P8510/P5916/P3600 series.
  • Provides 1:32 access, supporting up to 1:64 access.
  • Various capacity specifications are selected based on the density of the power grid terminals.
  • Multi-service slots to handle subsequent business expansions.
• ONU (Optical Network Unit): ATS2000 series.
  • Industrial Design: Ensures stable operation in harsh outdoor environments, with temperature ranges from -40 to 85 degrees Celsius.
  • Uplink: Features redundant dual PON ports to ensure uplink reliability.
  • Rich Service Interfaces: Includes RS232/485 and Ethernet electrical ports.
  • Manageability: Supports WEB, TELNET, CONSOLE, and SNMP, facilitating both remote and local management. Provides management data for network management software to assist with centralized management.
  • Compatibility: Designed according to Telecom CTC 2.1 standards, ensuring effective compatibility with other manufacturers’ EPON equipment.
  • Data Security: Implements VLAN, QoS mechanisms, and ACL filtering to ensure business isolation and prioritization.

Program Background

Emergency broadcasts are crucial for saving lives and property during natural disasters such as earthquakes, heavy rains, flash floods, mudslides, and landslides. Utilizing emergency broadcasts for disaster prevention, reduction, and scientific disaster relief has become essential for relevant departments like the Water Conservancy Bureau, Meteorological Bureau, Emergency Office, Radio and Television Bureau, and Flood Control and Drought Relief Office.

Functional Analysis

1. Disaster Warning Broadcast Function:
   • The emergency broadcasting system in townships and rural areas provides access ports for the Meteorological Bureau, Water Conservancy Bureau, Emergency Office, and other departments to issue timely warnings.
   • It helps avoid natural disaster risks, conducts early warning drills, and promotes public awareness of self-rescue and mutual rescue techniques.
   • It also facilitates the opening of emergency shelters and the evacuation of vulnerable people and property.
2. Hierarchical Broadcast Function:
   • The system operates according to a three-level administrative management structure (county/district, town, and village).
   • Each administrative level has dedicated early warning IP broadcast terminal equipment, enabling effective organization and movement during emergencies.
   • It strengthens safety and security for villages, communities, and public places vulnerable to natural disasters and guides civil affairs and other departments in preparing for basic life assistance.
3. Daily Broadcast Function:
   • The system supports “three levels of controllability, two levels of interruption, superior priority, and emergency first.”
   • Broadcasts can be scheduled for specific times and locations, with each administrative village operating independently without interference from others.

Program Overview

To meet these requirements, an IP network broadcast solution is implemented. This solution utilizes local communication operators’ network lines or establishes emergency SDH private networks to connect network terminals throughout the area. It ensures the dissemination of audio and control signals, delivering emergency broadcast information to every corner.

Program Background

With the rapid development of the domestic Internet of Things (IoT) industry, the warehousing and logistics sector has experienced significant growth, leading to higher demands for service speed and quality. Our solutions for telephone services in warehousing and logistics help enterprises enhance communication efficiency between branch warehouses and logistics, providing efficient and convenient communication services and improving the user experience.

Functional Analysis

1. IP Voice System: Must support simultaneous calls on multiple lines and include a backup hot switching mechanism for stable and reliable operation without dropping calls.
2. Short Number Calls: Allows free short number calls between headquarters and remote branches, ensuring stable call quality and improving internal communication efficiency.
3. Hierarchical Telephone System: All telephones share the same outbound call number, enabling timely customer call responses and appropriate service arrangements.
4. Terminal Phone Capabilities: Should support various voice call needs, including corporate address book, speed dial, caller information display, call recording, conference calls, and other common functions.
5. Automatic Deployment: Phones should have an automatic deployment function to facilitate easy setup across various locations.

Program Overview

Based on user needs and the existing enterprise network, two core VoIP systems are deployed in the central computer room. One system serves as the main server for daily operations of the enterprise telephone system, while the other functions as a secondary server using heartbeat detection technology to monitor the main server’s status in real-time. Branches can flexibly arrange VoIP phones according to the number of users for local outgoing calls. Network interconnection between branches allows for automatic issuance of extensions through the main system. Considering the spatial and operational characteristics of warehousing and logistics, APs and wireless phones can be used to implement wireless VoIP functions.

Program Background

The security monitoring system employs a cascade network management architecture to handle various monitoring tasks such as security, fire protection, natural disasters, and access control. A dual-network redundant switch management method ensures stable communication and enhances the overall security of the network system.

Functional Analysis

1. Emergency Alarms: Alarms can be deployed at critical points, allowing the console to detect and respond to emergencies promptly.
2. Custom Interfaces: The switch console interface varies based on the specific monitoring task.
3. Data Storage: The console includes a disk array to support extensive security monitoring data storage.
4. Remote Management: Supports remote maintenance and management, with features like ring network fault alarms, link fault alarms, port fault alarms, and power failure alarms, effectively reducing operation and maintenance costs.

Program Overview

Monitoring sensors and access control systems are deployed within a specified area and connected to the industrial Ethernet switch at the console side through wired or wireless methods. The management interface on the console provides real-time visibility of all security monitoring activities and allows querying of historical data through the disk array.

Program Background

With the rapid development of the domestic Internet of Things (IoT) industry, the efficiency of the warehousing and logistics sector has seen significant growth. Companies now demand higher service speed and quality. Our telephone service solutions for warehousing and logistics help enterprises improve communication efficiency between branch warehouses and logistics, offering efficient and convenient communication services that enhance the overall user experience.

Functional Analysis

1. IP Voice System: Must support simultaneous calls on multiple lines and feature a backup hot switching mechanism to ensure stability, reliability, and seamless call switching without drops.
2. Short Number Calls: Allows free short number calls between headquarters and remote branches, ensuring stable call quality and improving internal communication efficiency.
3. Hierarchical Telephone System: All telephones share the same outbound call number, enabling timely customer call responses and appropriate service arrangements.
4. Terminal Phone Capabilities: Should support various voice call needs, including corporate address book, speed dial, caller information display, call recording, conference calls, and other common functions.
5. Automatic Deployment: Phones should have an automatic deployment function to facilitate easy setup across various locations.

Program Overview

Based on user needs and the existing enterprise network, two core VoIP systems are deployed in the central computer room. One system serves as the main server to maintain daily operations of the enterprise telephone system, while the other functions as a secondary server using heartbeat detection technology to monitor the main server’s status in real time. Branches can flexibly arrange VoIP phones according to the number of users for local outgoing calls. Network interconnection between branches allows for automatic issuance of extensions through the main system. Considering the spatial and operational characteristics of warehousing and logistics, APs and wireless phones can be used to implement wireless VoIP functions.