| Manufacture | ABB |
| Item No | TU842 |
| Article number | 3BSE020850R1 |
| Series | 800xA Control Systems |
| Origin | Sweden |
| Dimension | 73*233*212(mm) |
| Weight | 0.5kg |
| Customs Tariff Number | 85389091 |
| Type | Module Termination Unit |
The MTU distributes the two ModuleBuses to each I/O module and to the next MTU. It also generates the correct address to the I/O modules by shifting the outgoing position signals to the next MTU. The MTU can be mounted on a standard DIN rail. It has a mechanical latch that locks the MTU to the DIN rail. Four mechanical keys, two for each I/O module, 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. The rugged housing and reliable electrical connections withstand industrial environments. The TU842 simplifies the connection process, reduces installation time and ensures signal integrity.Frequently asked questions about the product are as follows: -What is the main purpose of the TU842 terminal unit? The TU842 is used to safely terminate field wiring from sensors, actuators and other devices and connect them to ABB S800 I/O modules in an organized and reliable manner. -Is the TU842 compatible with all ABB S800 I/O modules? The TU842 is compatible with ABB's S800 I/O system and supports both digital and analog I/O modules. -Can the TU842 handle hazardous area applications? The TU842 itself does not have intrinsic safety certification. For hazardous environments, additional safety barriers or certified modules are required.