... .) and Infrared communication and RS485 communication. The data of this watt-hour meter is easy to read by infrared of ... and DL/T614-1997 Multi-rate watt-hour meter . The communication meet the demand of DL/T645-1997 Communication protocol of ... code.Meter code:rate meter,cyclic display meter,Display mode setting,code,meter number,Consumer number,clock.Open terminal cover and record:Broadcast set up ...