Cisco DNCS System Release 2.8.1 3.8.1 4.3.1 User Guide

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service group
A QAM modulator (or a cluster of QAMs) that is installed for delivering on-demand services to an associated
population of DHCTs. The association of a DHCT to a specific service group is determined by first identifying the
QAM modulator (or a cluster of QAMs) that a DHCT can receive.
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