One of the largest players within the railway industry needed to develop the rail communication network for a metro in India. In order to enhance passenger safety, the network needed to be able to support a state of the art CCTV surveillance system that provides real-time monitoring from the control center. The project requires a reliable train-to-ground wireless network that connects to rail-certified onboard wireless clients, trackside wireless units, and trackside Ethernet switches. The onboard wireless clients need to provide seamless roaming, wireless network redundancy, and sufficient bandwidth to ensure smooth video data transmission on constantly moving trains. For the trackside network, a redundant network topology is required to avoid packet loss when transmitting data from the trackside to the control center.
8. ﺗﺠﻬﯿﺰاتﻣﻮرداﺳﺘﻔﺎده
ICS-G7828ASeries (24G+4 10GbE-port Layer 3 full Gigabit managed Ethernet switches)
Features and Benefits:
• 24 Gigabit Ethernet ports plus up to 4 10G Ethernet ports
• Up to 28 optical fiber connections (SFP slots)
• Fanless, -40 to 75°C operating temperature range (T models)
• Turbo Ring and Turbo Chain (recovery time < 20 ms @ 250 switches), and
STP/RSTP/MSTP for network redundancy
• Isolated redundant power inputs with universal 110/220 VAC power supply range
• Supports MXstudio for easy, visualized industrial network management
• V-ON™ ensures millisecond-level multicast data and video network recovery
اﻃﻼﻋﺎتﺑﯿﺸﺘﺮ
9. ﺗﺠﻬﯿﺰاتﻣﻮرداﺳﺘﻔﺎده
TAP-213 Series (Rail onboard 802.11n IP68 wirelessAP/client)
Features and Benefits:
• IEEE 802.11a/b/g/n compliant
• Can be powered by redundant dual DC power inputs or PoE
• QoS (WMM) and VLAN for efficient network traffic
• Controller-based Turbo Roaming (less than 50 ms)
• Complies with all EN 50155 mandatory test items
• Rugged IP68-rated housing and -40 to 75°C operating temperature
• Wireless network redundancy with AeroLink Protection
اﻃﻼﻋﺎتﺑﯿﺸﺘﺮ
10. ﺗﺠﻬﯿﺰاتﻣﻮرداﺳﺘﻔﺎده
WAC-2004 Series (Industrial wireless access controller)
Features and Benefits:
• 2-in-1 AP controller and mobile IP home agent
• Millisecond-level controller-based Turbo Roaming
• IEEE 802.11i-compliant wireless security
• Layer-3 mobile IP technology
• Up to 450 Mbps throughput for tunneling
• Scalable tunneling capacity
اﻃﻼﻋﺎتﺑﯿﺸﺘﺮ