... module,Data rate: Downstream 55Mbps,Upstream 60Mbps CMTS-DAV CABLE MODEM FunctionInternal TV optical receiving & amplifying processing, there are 2 RF ... , simplified the network structure and reduced the construction costUse cable modem or set-top box at the head end, cost effective ... the detail information,please send me email. CMTS-DAV CABLE MODEM