NEC 915MSG 915MHz Wireless Transceiver Module User Manual 915M SG DataSheet

NEC Corporation 915MHz Wireless Transceiver Module 915M SG DataSheet

User Manual

Document Number ＩＴ471-0013-X701 February 2011 （rev.1.0） SSSSmall size mall size mall size mall size 915M915M915M915MHzHzHzHz wireless wireless wireless wireless ttttransceiverransceiverransceiverransceiver module module module module 「「「「915M915M915M915M____SGSGSGSG」」」」 The 915M-SG is a 915MHz Low power wireless transceiver module. Product PhotoProduct PhotoProduct PhotoProduct Photo ＜＜＜＜ FeatureFeatureFeatureFeaturessss＞＞＞＞ ・ Integrated by MCU, RF circuits, antenna ・ Communicated by the functions of device detect and data transmission ・ 1:1,1:N, and N:N communication style ・ Controlled by UART I/F ・ Low power sleep mode ・ DC3.0V supply voltage ・ FCC certification
Document Number ＩＴ471-0013-X701 February 2011 （rev.1.0） ＜＜＜＜SpecificationSpecificationSpecificationSpecificationssss＞＞＞＞ Product name 915M_SG Carrier frequency 903.5ＭＨｚ～926.5ＭＨｚ （24 channel） Communication protocol Proprietary protocol Modulation GFSK Wireless bit rate 9.6kbps/100kbps Transmit Power Maximum 8dBm (At the feeding point of the antenna) Effective range About 250m （Reference value） Interface ・UART serial communication Data length: 8bit Baud rate : 9.6kbs,19.2kbps,38.4kbps,57.6kbps,115.2kbps Data length: 8bit Parity: no parity Stop: 1stop bit Flow control: none Supply Voltage ・DC +3.0±0.3V Current Consumption ・TX: Typ. 34mA ・RX: Typ. 23mA ・Sleep Mode : Typ. 3uA (power-supply voltage DC 3.0Ｖ) Operating conditions ・Operating temperature range：-20℃～+75℃ ・Operating humidity range：85%RH or less （No do be dewy） Weight About 3g Dimensions 37.3mm×18.8mm×5.2mm （D×W×H） Restrictions RoHS-Compliant (Pb free) Reguration FCC certification
Document Number ＩＴ471-0013-X701 February 2011 （rev.1.0） ＜＜＜＜FCC statementFCC statementFCC statementFCC statement＞＞＞＞ This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Modifications not expressly approved by NEC Engineering, Ltd. could void the user's authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -- Reorient or relocate the receiving antenna. -- Increase the separation between the equipment and receiver. -- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -- Consult the dealer or an experienced radio/TV technician for help. Radiofrequency radiation exposure Information: The radiated output power of the device is far below the FCC radio frequency exposure limits. Nevertheless, the device shall be used in such a manner that the potential for human contact during normal operation is minimized.
Document Number ＩＴ471-0013-X701 February 2011 （rev.1.0） ＜＜＜＜output output output output I/FI/FI/FI/F connector connector connector connector＞＞＞＞ connector type ： Stacking connector 20pin 0.5mm pitch product name ： JST 20R-JMCS-G-TF(NSA) Receptacle Signal level ： CMOS Customer ： Recommended connector JST 20P3.0-JMCS-G-TF(N) Plug Stacking height 3mm ・・・・MMMModule pin definitionsodule pin definitionsodule pin definitionsodule pin definitions PPPPin in in in No.No.No.No. PPPPin namein namein namein name TTTTypeypeypeype DefinitionDefinitionDefinitionDefinition State of State of State of State of resetresetresetreset DDDDetailetailetailetail 1 VCC power Power － DC3.0Ｖ(Recommended power supply voltage) 2 GND GND GND － 3 TxD OUT UART data transmit HiZ 4 RxD IN UART data receive HiZ 5 WAKEUP IN WAKEUP input HiZ Sleep mode enable = High /disable = Low input Internal Pullup 6 RESET IN RESET input HiZ RESET Low input Internal Pullup 7 GPIO1 － Reserve － n.c 8 TSI IN TSI input HiZ internal Pullup 9 TSO OUT TSO output HiZ 10 GPIO4 － Reserve － n.c 11 VCC power power － DC3.0Ｖ(Recommend power supply voltage) 12 GND GND GND － 13 GND GND GND － 14 CTS － Reserve n.c 15 P_STATE OUT Mode output Normal mode = Low / sleep mode =High output 16 FLMD0 － TEST Pin － n.c 17 TOOL0 － TEST Pin － n.c 18 TOOL1 － TEST Pin － n.c 19 RTS － Reserve n.c 20 GND GND GND －
Document Number ＩＴ471-0013-X701 February 2011 （rev.1.0） ＜＜＜＜RFRFRFRF connector connector connector connector＞＞＞＞ RF Connector connects with antenna through cable. connector type ： Ultra small surface mount coaxial connector product name ： Hirose Electronic U.FL-R-SMT-1 impedance ： 50Ω ＜＜＜＜aaaantennantennantennantenna and cable for antenna connection and cable for antenna connection and cable for antenna connection and cable for antenna connection＞＞＞＞ ・antenna product name ： MIDORI ANZEN NMA-01 impedance ： 50Ω antenna gain ： less than 3dBi Unit:mm ・cable for antenna connection product name ： Hirose Electronic HRMBPJ-U.FL-04N1-A-100RS impedance ： 50Ω cable length ： 300mm Unit:mm
Document Number ＩＴ471-0013-X701 February 2011 （rev.1.0） ＜＜＜＜DimensionsDimensionsDimensionsDimensions＞＞＞＞ 󲃞󲃥󲃛󲃥󲃟󲃚󲃟󲃛󲃟󱱚󲃿󲃳󱸟󲃠󲄚󲄚󲃟󲃝󲄝󲄖󲄛󱱚󲃟󲃟󲃛󲃣󲃠󲃤󲃛󲃠󲃟󲃛󲃦 󲃞󲃞󲃛󲃟󲃢󱦅󲃟󲃛󲃥󲃢󲃟󲃛󲃥󲃢󲃞󲃞󲃝󲃞󲃞󲃟󲃝 unit：mm Side view Top view Staking hight 3mm 20pin Staking connector cap RF connector
Document Number ＩＴ471-0013-X701 February 2011 （rev.1.0） ＜＜＜＜InstallationInstallationInstallationInstallation＞＞＞＞ NEC Engineering,Ltd. General inquiries Sales&Marketing Division 4-10-27 Higashishinagawa Shinagawa-ku Tokyo 140-0002 Japan TEL: +81 3 6713 1200 URL http://www.nec-eng.com/ Contact

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