NEC Express 5800 User Manual page 64

4. Install the supporting cage-nuts in the rail. See Figure 5-12.
5. Attach the side rails and concentrator to the system rack with plated finish
screws and washers that you received with the system rack.
Note: The concentrator connector panel should face the
rear of the system rack and the blank panel should face the
front of the system rack.
5-16 Installing Rack Components
Figure 5-12. Installing the Port Concentrator