Computime Limited CT-EM2531 ユーザーズマニュアル
EM2531/01
ZigBee- Ready RF Transceiver Modules
RF Frequency, Output Power Levels and Data Rates
The following table shows the RF channels as defined by the IEEE 802.15.4 standard.
For proprietary solutions (non-IEEE 802.15.4), the RF transceiver can be
programmed in resolution of 11.7 KHZ.
The output power level can be configured from the firmware in the range -32 to 5 dBm.
The RF transceiver uses direct sequence spread spectrum (DSSS) with 2 Mchip/s
chip rate, giving a raw data rate of 250 kbit/s. The modulation format is Offset –
Quadrature Phase Shift Keying (O-QPSK). The DSSS makes the communication link
robust in noisy environments when sharing the same frequency band with other
applications.
The use of RF frequencies and maximum allowed RF power is limited by national
regulations. The CT-EM2500 is complying with the applicable regulations for the
world wide 2.45 GHz ISM band.
Specifically it complies with the European Union R&TTE directive meeting EN 300
328 . It also meets the FCC CFR47 Part15 regulations for use
in the US and the ARIB T-66 for use in Japan.
programmed in resolution of 11.7 KHZ.
The output power level can be configured from the firmware in the range -32 to 5 dBm.
The RF transceiver uses direct sequence spread spectrum (DSSS) with 2 Mchip/s
chip rate, giving a raw data rate of 250 kbit/s. The modulation format is Offset –
Quadrature Phase Shift Keying (O-QPSK). The DSSS makes the communication link
robust in noisy environments when sharing the same frequency band with other
applications.
The use of RF frequencies and maximum allowed RF power is limited by national
regulations. The CT-EM2500 is complying with the applicable regulations for the
world wide 2.45 GHz ISM band.
Specifically it complies with the European Union R&TTE directive meeting EN 300
328 . It also meets the FCC CFR47 Part15 regulations for use
in the US and the ARIB T-66 for use in Japan.
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