3 Close the lever compartment.
Installing Option Modules
To install an option module, first remove the interface module fitted to the unit as standard, and install the new interface in the slot.
Note
You can install an option module in any slot.
2
3
1
4
1 Loosen the two screws fixing the interface module fitted as standard.
2 Pull out the interface module.
3 Insert the option module into the slot.
4 Tighten the screws.
Caution
When installing an option module, always turn the unit off first. If you install an option module with the unit powered on, this may damage the option module.
Preparations 2 Chapter
Connections 55