Panasonic KX-TG6381LBB Service Manual

7KX-TG6381LBB/KX-TG6381LBS/KX-TG6382LBB/KX-TGA632LBB/KX-TGA632LBS4 Technical Descriptions4.1. US-DECT DescriptionThe frequency range of 1.92 GHz-1.93 GHz is used. Transmitting and receiving carrier between base unit and handset is same fre-quency. Refer to Frequency Table (P.64).4.1.1. TDD Frame Format4.1.2. TDMA systemThis system is the cycles of 10 ms, and has 6 duplex paths, but maximum duplex communication path is 5 because of dummybearer use.In 1 slot 417 μs, the 10 ms of voice data is transmitted.• 2 - Handsets LinkTraffic BearerA link is established between base unit and handset.The state where duplex communication is performed.Handset doesn't make up duplex in no free RF channels because of interference. (*1)Dummy BearerBase unit sends Dummy-data to the all stand-by state handsets.Handsets receive that data for synchronization and monitoring request from the base unit.Base unit doesn't send Dummy bearer in no free RF channels because of interference. (*1)Note:(*1) It is a feature under FCC 15 regulation and for interference avoidance.In the case of checking RF parts, it is better in least interference condition.