Product Core Brief
- Model: TTM211 (commonly referenced as TTM211/IP166)
- Brand: ALSTOM / ALSTOM Grid / Schneider Electric (Protection & Control line)
- Series: iPower / MiDOS / Substation Automation & Telecontrol Systems
- Core Function: Intelligent Remote Terminal Unit (RTU) interface and digital I/O processing module designed for power transmission/distribution sub-station automation, telemetry monitoring, and remote control execution.
- Type: Substation Telecontrol & I/O Acquisition Module
- Key Specs: Multi-channel binary inputs and digital control outputs, serial/bus communication interfaces, optical isolation, sub-station grade EMC protection, 24–110 V DC auxiliary power rating
- Condition: New Original (New Surplus) / Tested Surplus
Product Introduction
In electrical utility substations, power grid distribution networks, and heavy industrial power management systems, real-time monitoring of circuit breaker status, isolator positions, and alarm contacts is paramount. The ALSTOM TTM211 is a specialized telecontrol and digital interface module belonging to ALSTOM’s iPower and substation automation series.
Serving as a local interface node within substation Remote Terminal Units (RTUs) or control cabinets, the TTM211 aggregates high-speed field contact inputs, filters electrical noise, and executes remote control commands (telecommands) received from central SCADA systems. Replacing a failed TTM211 module restores vital telemetry feeds and circuit breaker trip/close remote control capabilities.
