... E1, PSTN, IP, DDN, ISDN, ADSL, wireless CDMA/GPRS, optical transmission, and 3G networks.3 ... scheduling function5 Friendly user interfaceCombined C/S and B/S structure re,WEB access mode,G ... monitoring data on each equipment through SU in one area. SS is the center ... the collection equipment, smart air conditioning controllers, intelligent battery detector, camera, sensors and other equipment flexibly. ...