3、ofthewirelessunittocallthemainsystemisdividedintotwo1arts,transmittingandreceiving.Ofwhichtherearefourcall-channelsystemforthefourwardbeds or usethedatatocodecchi1PT2262andPT2272atthecore,usedtosendandreceivewirelesstransmissionmodule,themoduleo1eratesat315MHZ,asawaytoacce1tChaoZaisheng,nursesBythe