3Com 6000 Series Installation Manual page 51

3 Pull the handles at both side of the RPU outward and gently pull the RPU out
along the guides until the whole card is separated from the chassis.
Figure 3 RPU Removal
Install an RPU
1 Power off the router. (If there are two power modules installed, turn both of them
off.
2 Align the corners of the far edge with the guides in RPU slot and push the RPU
inside the router. At the same time, push the handles at both side of the RPU
inward until it well touches the RPU panel.
3 Fasten the captive screws and fix the RPU on the router.
4 Turn ON power.
5 Check if the fan status indicator on the RPU is normal after powering on the
router.
RPU Removal and Installation 51