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Diamond Point International

MEN Mikro KT4 / KT8 - Modular Train Control System Extension, 8 Cards

MTCS Safe Remote I/O Box SIL 2 to SIL 4

MEN Mikro KT4 / KT8 - Modular Train Control System Extension, 8 Cards
Key Features
MTCS Remote I/O Extension
Accepts up to eight I/O boards
QNX safe operating system available
Certification packages available
Compact 19 inch based housing
Rack-mounted or wall-mounted
Full EN 50155 compliance
-40 to +85°C with qualified components


KT8 is a safe, remote I/O box inside the Modular Train Control System MTCS. It is a modular system platform usable for safety-critical train applications like train control, automatic train operation (ATO) and automatic train protection (ATP) up to SIL 4.

Modular, Built-to-Order I/O Configuration

Based on modular 19" technology, KT8 provides eight slots for safe I/O cards, which can be configured as built-to-order (BTO) options. MTCS I/O cards support the common I/O requirements  requested in trains. The KT series of systems is available with scalable sizes of eight slots, six slots and four slots.

Part of the MTCS Modular Train Control System

MTCS is a modular SIL 4 certifiable family of CompactPCI-based standard products usable for every kind of safety-critical railway application - from a single function to the main control system of the train. It can be configured to control
anything in the train that requires functional safety - under SIL 4, SIL 3 or SIL 2 requirements. MTCS communicates via standard real-time Ethernet and interfaces to any type of consist fieldbus network like MVB, CANopen, Profinet etc. This makes it easy to integrate into a TCN network as well as into regionally different Train Control Systems like ETCS, CTCS, ATCS or Klub-U. The high level of flexibility of MTCS results in significant cost and time savings during computerization of the train.

Compact and Cost-Saving Remote I/O

Being modular and SIL 4 certifiable, the KT series reduces the certification risk and efforts. This makes both your system costs and project schedule predictable. All KT systems have a dedicated real-time Ethernet component, the I/O head, for interconnection of the boxes and power supply. This in turn reduces cabling. I/O functions can still be located close to the remote actors and sensors, with fast data transmission within the MTCS. The compact format with a maximum width of 9.5 inches (half 19") and a reduced depth compared to standard 3U systems allows installation even where space is very restricted, simplifying retrofitting of older trains.

Certification and Standards Compliance Included

Safety-related MTCS components come with certification packages and complete support for the safe operating system QNX, including safe protocols, I/O transfer layer etc. All MTCS components that are safety-relevant are developed according to EN 50128 and EN 50129 standards and complies with all environmental requirements of EN 50155 for rolling stock: temperature class TX, shock, vibration, humidity, dust, isolation, PSU hold-up times, EMC regulations etc.

Mounting and Cooling Options

The system can be wall or rack-mounted, also on a DIN rail, and is cooled by natural convection. Cooling is independent of the mounting



FeaturesModular design, built-to-order configuration
Slot and backplane set-up of the system
• 1 I/O head slot
• 8 MTCS I/O board slots

I/O Head for Power Supply and Real-Time Ethernet
• MTCS I/O Head
• Configurable: no
• K100 MTCS I/O head unit; PSU: 40 W, 3U 8 HP PSU, wide range input 24 to 110 V DC, output 12 V DC; front: 2 Fast real-time Ethernet (M12), power inlet connector, hex switches, status LEDs; rear: real-time Ethernet (EBUS); -40..+85°C qualified, conformal coating
ConnectionsDepends on configuration

Safe Digital I/O
• MTCS I/O Board
• Configurable: yes
• Possible in slots: 1, 2, 3, 4, 5, 6, 7, 8
• Possible Configurations
8 digital outputs, SIL 2 (SIL 4), -40 to +85C qualified, conformal coating
16 digital inputs, SIL 2 (SIL 4), -40 to +85C qualified, conformal coating
4 frequency inputs, SIL 2 (SIL 4), -40 to +85C qualified, conformal coating


ExpansionEBUS: Two real-time Ethernet channels, ETG.1000
MTCS FSoE: Slot ID and chassis ID for unique FSoE address
Backplane Standard: ETG.1000 EBUS
ElectricalSupply voltage:
• 24 V, 36 V, 48 V, 72 V, 96 V, 110 V DC nominal; 14.4 to 154 V max. (EN 50155)
• Power interruption class S2 (10 ms) (EN 50155)
Power consumption: 58 W max.
MechanicalHalf 19" system (3U, 40 HP)
Slot alignment: vertical
Dimensions: 210 x 135 x 130 mm max. without brackets
Mounting Possibilities
• Wall-mount, or
• Rack-mount in 19" cabinet, or
• DIN-rail mounting
• Two systems side-by-side to build a single 19" chassis
SoftwarePACY (Process Data Framework for Cyclic Applications)
TemperatureTemperature range (operation):
• -40 to +85°C (qualified components)
• EN 50155, class TX; EN 50125-3, low temp. class T2, high temp. class TX
Temperature range (storage): -40 to +85°C
Cooling concept: Air-cooled, natural convection
HumidityEN 50155: Rolling stock, vehicle body
Altitude-300 m to +3000 m
VibrationEN 50155: Rolling stock, vehicle body class B
ShockEN 50155: Rolling stock, vehicle body class B
Safety/CertificationFlammability: UL 94V-0
Fire Protection: EN 45545

Functional Safety
• Certifiable up to SIL 4 according to EN 50129 ("safety case" document and certificate from TÜV SÜD)
• Hazard rate (THR) for safety functions <= 1E-8 / h
• Board maintains safe state after a failure
EMCEN 50155: Rolling stock, vehicle body
Warranty2 Years

Ordering Details

The KT8 is a build-to-order system which is delivered fully operational with QNX and PACY (Process Data Framework for Cyclic Applications) - including all necessary drivers.

It consists of the 9.5" basic system including backplane and mounting rails and provides:
• 1 slot for I/O head
• 8 MTCS I/O board slots
Accessories06K001-00 K1 - 8 digital outputs, SIL 2 (SIL 4), -40 to +85C qualified, conformal coating
06K002-00 K2 - 16 digital inputs, SIL 2 (SIL 4), -40 to +85C qualified, conformal coating
06K004-00 K4 - 4 frequency inputs, SIL 2 (SIL 4), -40 to +85C qualified, conformal coating
19MH50CB0 MH50C - Build to order MTCS System