IP based TCMS Network for Onboard Systems 发送询盘

TCMS (Train Control and Management System) is the core of train operation, which carries several critical services, such as traction power, auxiliary power, speed,  location, braking, door control, HVAC, train status monitoring and diagnosis. With the popularity and maturity of Ethernet technologies, an IP based TCMS and related specications such as ETB (Ethernet Train Backbone) and ECN (Ethernet Consist Network) are dened in IEC61375.

System Diagram

Kyland Solution

● Extraordinary  industrial  design  against  shock, vibration, EMC, unstable power supply  for onboard   environment
● PoE output  for  low and medium power electronics, such as PIS
● Security  function  to prevent unauthorized user operation
● NAT  for data  communications between  consist subnets (Railway NAT)
● ETB Automatic  IP  re-arrangement  for  Ethernet Switches in accordance  with train marshalling (TTDP)
● Automatic IP assignment for end devices (DHCP)
● Uninterrupted Ethernet backbone communications while single coach power failure

Why Kyland

Aquam series  is specially designed  for onboard ETB & ECN applications
● Supports typical Layer 3 and Layer 2 functionality
● Compliant with EN50155 with M12 connectors
● Max. 9 PoE ports with  IEEE802.3af &  IEEE802.3at compliance
● Supports  IEEE802.1X, SSH/SSL, TACACS+, RADIUS security function
● Supports R-NAT (ETBN)
● Supports TTDP
● Supports DHCP server, DHCP client, DHCP Opt. 82
● Relay bypass  function  to  avoid power  failure communication interruption

Products list

  • Aquam8012A


    8+4G/9+3G Port Layer 2 Managed EN50155 Industry Ethernet Switches

  • Aquam8


    8 Port Unmanaged EN50155 Industrial Ethernet Switches

  • Aquam5


    5 Port Unmanaged EN50155 Industry Ethernet Switches

Case Studies