... ASI signal switcher has many functions, such as 2X2,manual,automatic smart switch,single channel PID,multichanel PID, as well analizing TS ... it is interruptedMonitor synchronous bytePAT and PMT,CAT,SDT losing , change and errorBe able to monitor long time empty packet,the ... wayIf the main channel signal is failure, it will switch to standby signal automaticallIf the main channel signal recovered normal ...