Cisco DNCS System Release 2.8.1 3.8.1 4.3.1 Guia Do Utilizador

entered for each logical CMTS bridge. Only one logical CMTS bridge is typically required for each hub;
however, the system operator should carefully take into consideration the Federal Information
Processing Standards (FIPS) code area when defining bridges. This may result in more than one logical
bridge per hub. Because the DBDS associates channel lineups with hubs, unique hubs with at least one
logical CMTS bridge and their associated multicasts must be defined for each unique channel lineup
desired. The system operator must identify the physical CMTSs that are associated with each logical
bridge.



If yes, for each new bridge that you want to add to the DNCS, repeat this procedure from

step 4.



If no, you have successfully set up all the CMTS bridges for this CMTS chassis. Select File >

Close to close the QPSK/CMTS List window.

8.

Now that you have set up all of the CMTS bridges, you are ready to add a QPSK modulator to any hubs

that need them. A QPSK modulator is required to feed each hub that contains Explorer 8300 DHCTs. The
modulator provides the hub's Explorer 8300 DHCTs with the BRF so that these DHCTs can determine
which CMTS bridge to use for DOCSIS communication. To add a QPSK modulator to any hubs that need
them, see