Xetawave MSD9 Spread Spectrum Wireless Data Transceiver Licensed Spectrum Wireless Data Transceiver User Manual Installation Guide Version 0.
Warranty: Xetawave LLC warrants your Xetawave wireless data transceiver against defects in materials and manufacturing for a period of two years from the date of purchase. In the event of a product failure due to materials or workmanship, Xetawave will, at its discretion, repair or replace the product. In no event will Xetawave LLC, its suppliers or its licensors, be liable for any damages arising from the use of or the inability to use this product.
operated as supplied by Xetawave LLC. Any changes or modifications made to the device without the express written approval of Xetwave LLC may void the user’s authority to operate the device. Caution: The model number MSD9 has a maximum transmitted output power of 5000mW when used in the 928-960MHz band and 1000mW when used in the 902-928MHz band. It is recommended that the transmit antenna be kept at least 102.5* cm away from nearby persons to satisfy FCC RF requirements.
The Xetawave MSD9 uses a low power radio frequency transmitter. The concentrated energy from an antenna may pose a health hazard. People should not be in front of the antenna when the transmitter is operating.
RF Exposure Calculations: FCC ID PEJ-93829283-MSD9 The MPE (Maximum Permissible Exposure) distance was calculated based on the limits for a General Population/Uncontrolled Exposure, 900 MHz frequency band.¹ It was calculated for the worst case scenario – a 100% transmit duty cycle. For an isotropic radiator, the surface area of a sphere can be used to determine the area over which the transceiver’s energy is radiated.
RF Exposure Calculations: FCC ID PEJ-93829283-MSD9 The MPE (Maximum Permissible Exposure) distance was calculated based on the limits for a General Population/Uncontrolled Exposure, 900 MHz frequency band.¹ It was calculated for the worst case scenario – a 100% transmit duty cycle. For an isotropic radiator, the surface area of a sphere can be used to determine the area over which the transceiver’s energy is radiated.
Contents MSD9 Introduction........................................................................................................................................ 8 MSD9 Installation .......................................................................................................................................... 9 Point-to-Point Network...............................................................................................................................
MSD9 Introduction The MSD (Mini Software Defined) Radio family is a small form-factor data radio designed for transmitting low to moderate speed data across distances of up to 100 miles. Thus, this radio family has a much longer range than WiFi or other short distance radios, but at a lower data rate capacity.
MSD9 Installation The MSD9 is a board level radio that is intended to be integrated into a customer package. As such the antenna placement must be done in a manner that is in compliance with all regulations. All transceivers sold under the FCC ID PEJ-### must be installed professionally. This transceiver is only approved for use when installed in devices produced by Xetawave LLC or third party OEMs approved by Xetawave LLC.
Electrical power/signal interface: Header assignment: 24-pin 2-row Samtec part TMM-112-01-JD DNC DNC DNC Power IN Data DTR Data TX Data RX Data RTS Diag RX Sig GND GPIO GPIO :1 2: :3 4: :5 6: :7 8: :9 10: :11 12: :13 14: :15 16: :17 18: :19 20: :21 22: :23 24: DNC DNC GPIO_HS DNC Power GND RSSI (option) Data DCD Data CTS Diag TX Baud Clk GPIO GPIO 23 21 … 3 1 24 22 RF Shield 4 2 Header Pin Assignments (Note: rows are reversed compared to standard nomenclature.
Point-to-Point Network The point-to-point network consists of a minimum of two radios; a master and a slave, or multiple radios with repeaters inserted between the master and slave. Each radio must be configured for its role in the network. Each radio in the network must have the same network identifier but unique radio identifiers. The master radio has the radio identifier of “1” while the repeaters and slaves have other unique radio identifiers.
spi_init(SPI_BUS_0) spi_init(SPI_BUS_1) twi_init() iox_init() pll_init(TRUE) interrupt_init() timer_init() mon_init() Xetawave Bootloader revision x.xx.xxx for rev 4 board Booting . . . spi_init(SPI_BUS_0) spi_init(SPI_BUS_1) twi_init() iox_init() pll_init(TRUE) interrupt_init() timer_init() if_init() synth_init() params_load() sport_init(SPORT_BUS_0) sport_init(SPORT_BUS_1) daca_init() dac_init() recv_init() xmit_init() crc_init() pwm_init() watchdog_init() mon_init() Starting . . .
Operating Menu Xetawave MSD9 rev 4, firmware x.xx.
Main Configuration Menu Xetawave MSD9 rev 4, firmware x.xx.xxx Device address: 1 Mode: Master 0 : 1 : 2 : 3 : 4 : Esc: Serial Port Configuration Menu RF and Hopping Menu Bit Rate and Modulation Type Menu Network Menu Utilities Menu Resume Radio Operation Enter selection: If the serial ports need to be modified, that may be done by option “0”. Serial Port Configuration Each radio has two serial ports for communication; one is a lower speed diagnostics port and the second is a high speed data port.
The baud rate for the data port can be changed by selecting “0” and the various speeds will be displayed: Data Serial Bit Rate This parameter specifies the serial bit rate in bits/second for the data port.
RF and Hopping Configuration This menu allows for the selection of the frequency characteristics of the radio. Option “0” allows for the selection of the ISM (902-928MHz) band or the MAS (928-960MHz) band. Since the MAS band is a constant frequency band, hopping is disabled and the transmit frequency is input as option “4”. The ISM band is a hopping band resulting in the required setting of the Hop Pattern.
Menu for ISM band operation: RF and Hopping Configuration Menu Channels: Bandwidth: Freq Range: 0 : 1 : 2 : 3 : 5 : 6 : 7 : Esc: 57 450000 902400000 - 927600000 RF band Hop pattern Hop frequency offset Exclude frequencies RF transmit power Maximum separation Print Hop Frequencies Return to previous menu ISM band 1 0 Hz 500 mW 2 km Enter selection: Menu for MAS band operation: RF and Hopping Configuration Menu Current bandwidth (Hz): 0 : 4 : 5 : 6 : Esc: RF band Transmit frequency RF transmit power Max
For ISM band, selecting “1” allows for the hop distance input: Hop Pattern This parameter specifies the minimum number of channels spanned by each hop. The width of a channel is defined by the occupied bandwidth at the current bit rate and modulation type. A value of one will be a pseudorandom hop sequence. A value of zero disables hopping. Current value = 1 Enter new value (0 - 56) or Esc to exit: The hopping pattern is a function of the modulation method chosen.
Exclude Frequencies Allows blocking a range of frequencies in the middle of the band. Current value = None 0 : Start 0 1 : End 0 Esc: Return to previous menu The RF transmit power sets the power as measured at the connector. This value must be set by the user to be the within the allowed level based on the ISM band or the MAS band with the appropriate antenna attached. The maximum value allowed by the user changes based on which band the radio is configured to operate in.
Bit Rate and Modulation Configuration The various data rates may be chosen from the main menu by selecting option “2” from the main menu. Multiple rates may be selected so that the radio will attempt to operate at the highest data rate possible, but if the signal begins to drop too low, then the data rate will drop so that performance is improved. Alternatively, if only one rate is selected, then only that rate will be used and if the signal quality drops, the link between the radios may drop.
MAS band operating modes: Bit Rate and Modulation Type This selection determines the bit rate(s) and modulation type(s) to use. Enabling more than one option allows the radio to switch among the enabled modes depending on operating conditions.
Network Configuration The Network Configuration defines the radio personality as Master, Slave, or Repeater. There must be one Master on a network. For a point-to-point network, there must be one slave with optional repeaters. On a point-to-multipoint network, there must be at least one slave and/or repeater.
Maximum Payload Size for Master The Maximum Payload Size for Master/Slave parameters specify the maximum number of payload bytes per transmitted packet, separately for the Master and Slave radios. For example, in an application requiring greater throughput from the master to the slave, set the master parameter to the maximum value (1024) and the slave parameter to a lower value (minimum 16). The time saved transmitting smaller packets in one direction will increase throughput in the other direction.
Utilities A terminal version of the RF scan is provided as a basic utility test tool. This tool receives signal strength as it scans across the ISM band and is designed as a basic trouble shooting tool. freq dBm 902.00 -114 *** 903.12 -114 *** 904.24 -109 ***** 905.36 -109 ***** 906.48 -106 ******* 907.61 -109 ***** 908.73 -110 ***** 909.85 -115 ** 910.97 -118 * 912.09 -117 * 913.21 -112 **** 914.33 -113 *** 915.45 -116 ** 916.57 -110 ***** 917.70 -109 ***** 918.82 -110 ***** 919.94 -108 ****** 921.
