I. overview

South Korea's Seoul subway wireless transportation system realizes the transmission of video and other services through wireless. The camera accesses the front-end industrial Ethernet switch through the wired network, and the switch transmits the collected data through the wireless AP. Through wireless transmission, the redundancy of field wiring is effectively solved.

II. Solutions

The transmission topology is shown in Figure 1 - 1:

Figure 1 - 1

III. Programme Advantages

The use environment of equipment in subway is relatively harsh and requires high safety and reliability of equipment. The system selects the 4000 series products of Hua Fei Science and Technology Exchange: HF - IES - 4000 - 12P8 T 4F. This device has 8 100M ports and 4 SFP ports and is flexible in configuration. It has higher network security than other products, can ensure the safe and reliable transmission of data such as video and effectively solve the risks such as data leakage.

IV. Product Characteristics

● Support IPv4 / IPv6
● Support HF - Ring
● Support static routing
● Optional support for IEEE 1588
● Support IEEE 802.3 AF - 2003, IEEE 802.3 AT - 2009
● support STP / rstp / MSTP / ITU - t g 8032 Ethernet ring protection
● Support IGMP V1 / V2 / V3 Snooping and MLD V1 / V2 Snooping
● Support IEEE 802.1 Q VLAN / MAC Based VLAN / Protocol Based VLAN / IP Subnet Based VLAN / GVRP / MVR
● Support DHCP Server / Client / Relay / Snooping
● port - based IEEE 802.1 x / single and multiple IEEE 802.1 x / MAC - based authentication / VLAN assignment / IP source guard / radius / tacacs + / ACL / ssh2 / https are supported
● Support DNS Client / Proxy
● Support LACP / Link Aggregation Station
● Support port mirroring, port speed limit, broadcast storm suppression
● Support two 2.5G optical ports, configurable to 1G, support Web interface management, CLI - Console / Telnet, SNMP V1 / V2 / V3 RMON / System Syslog
● Meet the requirements of industry level 4 electromagnetic compatibility
● Green industrial Ethernet series, fan - free, low-power design
● Various optional power supply voltage inputs
● Wide temperature operation ( - 40 ℃ ~ + 85 ℃ )
● Meet the reliable working requirements of strict electrical environment
● Redundant dual power supply input design
● IP40 protection level, metal shell

Recommended Products