1.          Four  port High level output , each way  independent GaAs amplifier module

2.          Upgradeable with  network  management transponder module

3.          Upgradeable  two optical receiver module and two optical transmitter module

4.          Upstream filter for  return path

5.          Variety of optional optical return path   transmitters   

6.          Flexible return path by plug-in diplexer module

7.          High sensitivity and wide input power range

8           Excellent surge and transient protection

9.          Independent feed  current port for assembling