Installation guide

Chapter 4: Maintenance Procedures
E4G Series Routers Hardware Installation Guide
88
3 Carefully slide the replacement module into the router (Figure 64).
4 Align and tighten the captive retaining screws.
Figure 64: Installing a Replacement Port Option Card
5 Reboot the router to initialize the newly installed port option card.
Replacing a Clock Module in the E4G-200 Series
Router
You can replace a clock module without powering down the router; however, you must reboot the
router to initialize the newly installed clock module.
To replace a clock module:
1 Attach an ESD-preventive wrist strap to your wrist and connect the metal end to an appropriate
ground point on the rack.
2 Completely loosen the captive retaining screws and slide the installed clock module out of the router
(Figure 65).
CSR_006
Slot A
CSR_007
Slot B