One or two 680 systems can be installed in a 2800 4+0 base cabinet:
- A single 680 system can be installed in U-spaces 40-42. U-space 39 must be left empty when a 680 system is installed above it.
- A second 680 system can be installed in U-spaces 36-38. U-space 35 must be left empty when a 680 system is installed above it.
