PROMAX-37L is an analyzer for the installation, configuration and maintenance of video and high speed data interactive services over TV networks based on the EuroDOCSIS and DOCSIS 3.0 standard. It allows the qualification of VoIP and IPTV services. The PROMAX37L incorporates the most advanced functions in accordance to updates made on the latest version of the DOCSIS 3.0 protocol, which includes channel bonding technology, allowing the instrument to be adapted to the latest technologies implemented by data over cable network operators. The result is a bandwidth equal to the sum of allused channels. By this way, the whole bandwidth increases by using the existing infrastructure of the data network. The channel bonding allows both the data traffic sent to a cable modem travels through several downstream channels (Downstream channel bonding) as the traffic generated by eachuser returns through several upstream channels (Upstream channel bonding).