### Step 6: Connect the Computers

Now, you need to connect the computers so they can communicate with each other. You can either use a null modem serial cable between the computers, or if the computers are connected to a network, you can use the network to communicate between them. The "Step 5: Setup the Multiple Arm Connection" topic allows you to configure these communication settings.

Once the computers are connected,

1. Start up PC-DMIS on the Arm2 and higher systems. Do not create a new part program or activate a program. These systems are now ready.

2. Start up PC-DMIS on the Arm1 (primary) system. Create a new part program (or activate one that is already available). If you are creating a new part program, PC-DMIS automatically opens the Probe Utilities dialog box.

3. Either select or create a probe file that describes a probe on Arm1. Make sure that you add an AB angle for the tip you plan to use to calibrate the relationship between the two arms. Don't calibrate the probe at this time.

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