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Replacing+an+E7420+Line+Card+
Use the following procedure to replace a damaged or failed E7-20 line card.
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9A! Disconnect all line interface cables (fibers) from the card to replace.
*A! If the replacement card will reuse optics modules from the replaced card, remove all
pluggable modules from the card.
:A! Remove the line card from the E7-20 shelf as follows:
a.! On the card faceplate, pull the ejector lever open into the unlocked position to unseat
b.! Carefully slide the card out of the slot, and place it in protective packaging. Return
the faulty unit to Calix.
<A! Insert a replacement line card into the vacant slot. See Installing E7-20 Line Cards for
Note: If you are not installing a replacement card, or no replacement card is available,
install a Blank card into the vacant slot. Calix E7 blank line cards are ordered and
EA! Install pluggable transceiver modules into the card and connect fibers as required. See
Connecting the E7-20 Line Interfaces for detailed instructions.
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