The Tightening System 300 is provided with system box units (SB301 or SB305) and the BT300 card rack for the inclusion of tightening system components. All system boxes and the card rack can be coupled via bus cables. Therefore, a tightening station can consist of 16 units (BT300 / SBs) and a maximum of 40 tightening channels. In such multi-channel systems, the KE310 communication unit can be used for overriding communication.
The bus rear panel board on the inside of the units connects all inserted cards and supplies these with the respective power voltages.
