# Setting up Synchronized tightening (hardware)

Note that software configuration needs to be done before hardware set-up is completed to avoid possible set-up conflicts.

Synchronized tightening allows several POWER FOCUS 8 to be connected to run synchronized tightenings.

1. Make sure that each controller has been configured correctly (see Synchronized Tightening Configuration for more information).

2. Use a PF8 daisy-chain cable to connect the Sync Reference Com Port B to the first Sync Member's Com Port A.

3. Use another PF8 daisy-chain cable to connect the first Sync Member's Com Port B to the second Sync Member's Com Port A. Do the same for all subsequent controllers.

   A synchronized tightening system can be configured with a maximum of 5 Sync Members.

The controllers need to be interconnected with an Estop cable. See EM Stop Connection Scenarios.