... bi-directional HFC network,and it has modular reverse path transmitter optical, can be upgraded conveniently. This product has perfect performance ... latest and highest index ,imported ,power doubled, amplify module or GaAs amplify module. Nonlinear index good, output level steady. Plug-in duplex ... supply mode: 2-----220v or 60v can be chosen 7.Module type: MB--Motorola,CC-Made in China, PB-- Used ...