How to win: Data Transmission Network (DTN) HS2

About this contract

The HS2 Data Transmission Network (DTN) will provide network transport services and specific central service functions necessary for the reliable operation of trains on HS2. The DTN shall fulfil the following high-level requirements: • Provision of a Critical network for safety-related connected sub-systems: DTN-Critical • Provision of a Protected network (DTN-P), distinct from the critical DTN network, connecting non-safety-related subsystems. • Provision of a secure, geo-redundant external interface via a De-Militarized Zone (DMZ). DTN acts as the aggregator for internet and cloud connectivity from its DMZ. The DTN DMZ also acts as the interface to Network Rail to connect HS2 rail systems to Conventional Rail services hosted in Network Rail's telecoms network. • Provision of the DMZ, including central compute and servers, protected by internal and external security perimeters. • Provision of a Master Clock System, providing accurate clocking internally and to connected subsystems with Precision Time Protocol (PTP) with boundary clock functionality, Synchronous Ethernet (SyncE), and Network Time Protocol (NTP). • Provisio

How to win contracts like this

• ✓Answer against the marking scheme, not the question text — Siemens Mobility Ltd scores each response, so map your evidence to the published criteria and weightings.
• ✓At £5,000,000, expect quality and social value to carry a large share of the score — price alone rarely wins goods work.
• ✓Show recent, comparable delivery: name similar goods contracts you've delivered for public bodies, with measurable outcomes.
• ✓Start early: it closes 7 September 2026 and a strong bid takes iteration.

BidWriter drafts your responses from your company profile, scores them against the marking scheme, and tracks your whole pipeline. Free to start — no card needed.

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