Installation guide
Installing the E4G-200 Series Cell Site Routers
E4G Series Routers Hardware Installation Guide
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Installing and Connecting a Clock Module
You can install or remove a clock module in the E4G-200 series router without powering down the
router; however, you must reboot the router to initialize a newly installed clock module.
To install a clock module:
1 Attach an ESD-preventive wrist strap to your bare wrist and connect the metal end to an appropriate
ground point on the rack.
2 On the front panel of the E4G-200 series router, remove the cover from the clock module slot
(Figure 23).
Figure 23: Clock Module Slot Cover
3 Carefully slide the clock module all the way into the slot (Figure 24).
4 Align and securely tighten the captive retaining screws.
Figure 24: Installing a Clock Module
5 To initialize the clock module, reboot the router.
Save the cover for later re-use in case you must remove the clock module and do not have a
replacement module. An unoccupied module slot must be covered to ensure satisfactory EMI levels and
to maintain adequate airflow through the router.
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