Rf Card Exchange / Upgrade With Additional Rf Cards - CommScope Node AM4 Manual

5.2.6. RF Card Exchange / Upgrade with Additional RF Cards

Caution: Rotating fans. Risk of injury in operation. Wear tight-fitting clothes and
disconnect mains before working inside the unit.

Notes:
 This instruction is also valid for the slot duplexer.
 It is strongly recommended to disconnect the Node AM from mains (power-
supply line) before an RF card is mounted or dismounted. In case the Node AM
is not allowed to be disconnected from mains, the RF card which needs to be replaced
must be disabled via software in the Technician page before removing it. This is to
avoid possible damage when inserting the new RF card.
 Observe that the RF cards must always be packed separately for transport
 All unused slots need to be assembled with a dummy card for sufficient airflow and
provided IP class.
 Before upgrading or when replacing single-band with dual-band cards, observe the
limitations for the number of dual-band cards that may be equipped as specified in
chapter 7.1.
 Replacing a single-band with a dual-band card impacts the share of available filters.
A total of 48 (backplane-controlled) filters can be defined at freely variable proportions
for all single-band cards equipped. For dual-band cards, these filters are not available
but each dual-band card provides additional 32 wide-band filters, which can be
variably shared among the two bands of this card only. Thus, if a single-band card for
which more than 32 filters were defined is replaced, these can no longer be provided
by the dual-band card.
 This chapter shows the single-band cards but it is valid for dual-band cards as well.
To replace an RF card or to upgrade the Node AM with additional RF cards, proceed as
follows:
To remove an RF card / or dummy card (in case of an
upgrade):
Disconnect the cables.
Loosen the four socket head cap screws M3x16 mm)
and take the RF / dummy card out.
To install the RF card:
Use the guide rails on top and bottom to fit in the RF
card smoothly.

Note: Fasten the screws of the RF card tight to
restore watertightness. To do so, first, just slightly
tighten the screws crosswise in order to avoid cant, and
when all four screws are positioned correctly, fasten
them tight.
Use the guide rails on top and bottom to fit in the RF
card smoothly.
Reconnect the cables.
Page 66 MF0121ACP_uc.docx
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Manual for Node AM4