AFC solutions

AFC system full name is automatic fare collection, automatic fare collection system. AFC is an automatic system based on computer, communication, network, automatic control and other technologies to realize the whole process of ticket selling, ticket checking, billing, charging, statistics, sorting and management of rail transit. The structure of AFC is divided into five levels: ticket, terminal equipment, computer system, central computer system and clearing system.



System requirements
The three-layer Industrial Ethernet switch and the two-layer Industrial Ethernet switch shall be used to build a gigabit optical fiber ring network. The three-layer Industrial Ethernet switch provides access to the server and workstation of the station and realizes interconnection with the LC system through the communication network. The two-layer Industrial Ethernet switch is set in the station, including AGM, AVM, TVM and semi-automatic In the terminal equipment such as mobile ticket vending machine (BOM) and self-service inquiry machine (TCM), about 8-12 terminal equipment are connected to the nearest Industrial Ethernet switch according to the distribution area.

Scheme features
The local network adopts 3CIH-SFP0424GM-L3 three-layer Industrial Ethernet switch and 3CI-SFP0208GM two-layer Industrial Ethernet switch to build a gigabit optical fiber ring network. The three-layer Industrial Ethernet switch provides access to the server and workstation of the station, and realizes interconnection with LC system through communication network

The industrial level ring redundancy network is adopted, and the industrial level redundancy ring protocol SW ring of Sanwang communication is enabled. The self-healing time is less than 20ms, which can effectively guarantee the transmission network self-healing in case of link failure

Industrial grade design, protection against shock, vibration and extreme working environment

Fan free design, dual power supply, trouble free working time more than 200000 hours

Support routing protocol to communicate with external network

Support - 40~ 75 ℃ wide temperature operation, high EMC protection level

Support multiple redundant ring protection protocols, such as STP / RSTP, MSTP, SW ring and iec62439-6 (DRP)

Supports three-tier routing protocols, such as rip and OSPF