Optical transmitter 4-port CATV amplifier has support Telnet and SNMP network management, 23dbm, 4 x 16-SA22SA. It has a low noise figure, 220AC voltage power, up to 5-watts high power, one unit for 2000~4000 optical node, <-70dBc low CSO, MTBF>150000 hours high stability and reliability, redundancy hot swap power module.