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The TU810/TU810V1 is a 16 channel 50 V compact module termination unit (MTU) for the S800 I/O. The MTU is a passive unit used for connection of the field wiring to the I/O modules. It also contains a part of the ModuleBus.

The MTU distributes the ModuleBus to the I/O module and to the next MTU. It also generates the correct address to the I/O module by shifting the outgoing position signals to the next MTU.

Two mechanical keys are used to configure the MTU for different types of I/O modules. This is only a mechanical configuration and it does not affect the functionality of the MTU or the I/O module. Each key has six positions, which gives a total number of 36 different configurations.

• Compact installation of I/O modules using one-wire connections.
• Up to 16 channels of field signals and process power connections.
• Connections to ModuleBus and I/O modules.
• Mechanical keying prevents insertion of the wrong I/O module.
• Latching device to DIN rail for grounding.
• DIN rail mounting.