Urban Rail Signal DCS Network Solution
- The Data Communication System (DCS) network carries both wired and wireless network services. The wired network services include automatic train supervision (ATS), automatic train protection (ATP), interlocking, and Maintain Support System (MSS) services, which are carried through Layer 2 private networks. According to the requirements of customers and integrators, several services can be carried on one Layer 2 private network or on separate Layer 2 private networks. Wireless network services are generally carried in WiFi or Long Term Evolution (LTE) mode. The E2E L3VPN solution is recommended for the LTE network. The E2E VPN solution is mature for the LTE network, and the Layer 3 solution prevents broadcast storms.