2.7 Connection of DECT Portable StationsInstallation Manual 852.7 Connection of DECT Portable Stations2.7.1 OverviewThe following equipment is required to connect the wireless system:CS: Cell Station (KX-TDA0141CE)This unit determines the area covered by the wireless system. Up to 2 calls can be made atthe same time through each CS.Note for users in EuropeThis Cell Station Unit for DECT is for connection to a Panasonic PBX of a Europeancountry.PS: DECT Portable Station (KX-TD7590/KX-TD7580)The KX-TDA30 can support up to 28 PSs. For more details about the PS, please refer to thePS Operating Instructions.RF SpecificationCAUTION• The CS should be kept free of dust, moisture, high temperature (more than 40 °C),low temperature (less than 0 °C), vibration, and should not be exposed to directsunlight.• The CS should not be placed outdoors (use indoors).• The CS should not be placed near high voltage equipment.Item DescriptionRadio Access Method Multi Carrier TDMA-TDDFrequency Band 1880 MHz to 1900 MHz *1*1 The number may vary depending on the country/area. In Taiwan, it is 1880 MHz to 1895 MHz.Number of Carriers 10*2*2 The number may vary depending on the country/area. In Taiwan, it is 8.Carrier Spacing 1728 kHzBit Rate 1152 kbpsCarrier Multiplex TDMA, 24 (Tx12, Rx12) slots per frameFrame Length 10 msModulation Scheme GFSKRoll-off factor=0.5 50 % roll-off in the transmitterData Coding for Modulator Differential CodingVoice CODEC 32 kbps ADPCM (CCITT G.721)Transmission Output Average 10 mWPeak 250 mW
