CommScope Node AM4 Manual page 56

Unhook the plates and disconnect all cables from the combiner. Remember their
positions for later reconnection. (For replacement of components on the carrier plate, now
refer to the corresponding chapter.)
At four band combiners, the combiner is tied to the
carrier plate by a mounting plate that is fixed with
screws. To avoid a collision between modem
connectors and combiner (particularly with 4-way
combiners), an adapter kit for modem installation
is used (see figure 5 1 and chapter 8).
Exchange the combiner and re-connect all cables
at the correct positions.

Note: In case of upgrading with a different type
of multiband combiner, make sure that the
operating frequency band of the modem still fits to
the combiner frequency bands.
Caution: Before sliding the new module in, make sure that no cables inside, e. g. from
the PSU, obstruct the way and may get squeezed or damaged in the process. Make
also sure that no cables get disconnected by accident. In case of obstructing cables
that may get damaged, send the unit back to the supplier for repair.
Carefully slide in the modem carrier plate, using
the guide rails provided at the top and bottom of
the slot for positioning the module correctly.
Then, reconnect the modem and combiner plates
by hooking the screw of the modem plate into the
long hole of the combiner plate.
Position the combiner plate in the same guide rails
as the modem plate and slide in the combiner
carefully, also pushing the modem carrier plate
back in.
Attention: Be careful with all cables connected. Do not squeeze or damage any cables,
and make sure that no cables get disconnected by accident.
Fasten the screws of the combiner tight to restore watertightness (for screw positions,
see illustration at the beginning of the procedure).
Page 56 MF0121ACP_uc.docx
5. Maintenance
Guide rails
Manual for Node AM4