Datalogic S r l 0022 915MHz radio module User Manual

Datalogic ADC S.r.l. 915MHz radio module

User manual

Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 1 of 8 Integration Guide Mizar Radio Module 915 MHz
Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 2 of 8 Table of contents Document history ...................................................................................................... 3 Introduction ............................................................................................................... 4 Pinout ........................................................................................................................ 4 Block diagram ............................................................................................................ 4 Operational description ............................................................................................. 5 Working modes .............................................................................................................................................. 5 Functional states ........................................................................................................................................... 5 Idle State .................................................................................................................................................... 5 Receive State ............................................................................................................................................. 5 Transmission State..................................................................................................................................... 5 Interface description (pinout reference) .................................................................... 6 Electrical characteristics ............................................................................................. 7 RF characteristics ....................................................................................................... 7 Low speed mode ............................................................................................................................................ 7 High speed mode ........................................................................................................................................... 8
Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 3 of 8 Document history Date Author Notes April 19th, 2012 Davide Carli Initial draft May 2nd, 2012 Davide Carli Added details on test command(s) 0x86 May 31th, 2012 Davide Carli In-depth documentation of test commands July 18th, 2012 Davide Carli Added data on current consumption in DEEP SLEEP status April 15th, 2013 Davide Carli Updated the description of some test commands December 20th, 2013 Davide Carli Document splitted in 433 MHz and 915 MHz versions RF Characteristics updated according to FW 2.01A and 2.01B Removed outdated information January 15th, 2014 Davide Carli RF Characteristics updated according to FW 2.02B February 11th, 2014 Pier Giorgio Peruzzi Added Operational description and Interface description
Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 4 of 8 Introduction Mizar radiofrequency (RF) module operates in the 902-928 MHz ISM frequency band. Pinout Block diagram
Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 5 of 8 Operational description The equipment is a radio module to be integrated inside cordless devices. It is based upon an FSK ( Frequency Shift Keying Modulation ) Half-Duplex transceiver working in the ISM band from 902 to 928 MHz. The radio module has a UART interface to exchange data and commands. Working modes Radio module can operate in the follow working modes : Low Speed, Low Power, fixed channel (among 25 channels) o FSK, Bitrate 36864 bps, RZ Manchester encoded, Frequency deviation +/- 75KHz Low Speed, Frequency Hopping Mode over 25 channels o FSK, Bitrate 36864 bps, RZ Manchester encoded, Frequency deviation +/- 75KHz High Speed, Digital Transmission Mode, fixed channel (among 12 channels) o FSK, Bitrate 500,000 bps, NRZ, Frequency deviation +/- 220KHz High Speed, Digital Transmission + frequency agility Mode over 12 channels o FSK, Bitrate 500,000 bps, NRZ, Frequency deviation +/- 220KHz Default mode after power-up is Low Speed Low Power mode. Radio module can receive commands to allow to change its working mode. Functional states Radio module can be set in one of the following states during operation: Idle State Radio module stays in low power receiving mode with a limited capability to receive data. RF transmission is not allowed while radio is set in Idle state. Receive State It is the normal default state. In this state the radio receives the RF packets, decodes the packets and sends them to the Host device. In this mode the transceiver checks continuously the RF signal and demodulates it. The demodulated and filtered signal is sent to the microcontroller inside the radio module which decodes it and sends decoded data to the Host by means of the UART interface. Only valid demodulated data packets are sent to the Host. Transmission State This state is enabled from the host when it needs to transmit data. The transmission state is enabled sending a data packet to the radio module over the UART interface. The microcontroller in the radio module checks for the integrity of the data packet and enables the transceiver to modulate and transmit to the RF interface, preceded by a short preamble burst. Radio module exits automatically from this state when the complete packet has been transmitted, and returns to the receive state.
Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 6 of 8 Radio module operates in CSMA-CA (carrier sense multiple access – collision avoidance) : transmission is enabled when the RF channel is not busy by the use of a “carrier detect” function. Radio module accesses the channel in a fair way using a backoff algorithm. Interface description (pinout reference) UART 2-pin interface, used to exchange data from the Host: DATA_OUT (output pin) : transmits data to Host. DATA_IN (input pin) : receives data from Host. CD# – (output pin) Carrier Detect : When radio is in receive mode, this pin signals the presence of RF carrier. IDLE - (input pin) : A high level on this pin forces the radio module in Idle State. RESET (input pin) : A low level on this pin resets the radio module. VCC and GND : Radio module power supply. RF Port : Radio Frequency Connector for the antenna.
Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 7 of 8 Electrical characteristics Table 1 Parameter Min. Typ. Max. Unit Power supply voltage (between VCC pin and GND pin) 3,1 3,3 3,6 V Operating temperature range -30 --- +85 °C RF characteristics Low speed mode Table 2 Parameter Typ. value Unit Modulation RZ Manchester Bit rate (over-the-air) 36864 bit/s Frequency deviation ± 75,000 kHz Number of supported channels 25 Index of default channel 8 Center frequency of default channel 910,00000 MHz Table 3 Channel index Channel center frequency [MHz] 1 902,80050 2 903,82900 3 904,85750 4 905,88600 5 906,91450 6 907,94300 7 908,97150 8 910,00000 9 911,02850 10 912,05700 11 913,08550 12 914,11400 13 915,14250 14 916,17100 15 917,19950 16 918,22800 17 919,25650 18 920,28500 19 921,31350 20 922,34200 21 923,37050 22 924,39900 23 925,42750 24 926,45600 25 927,48450
Author: Radio Group Date: February 11th, 2014 Subject: Integration Guide – Mizar Radio Module 915 MHz Page 8 of 8 High speed mode Table 6 Parameter Typ. value Unit Modulation NRZ Bit rate (over-the-air) 500000 bit/s Frequency deviation ± 220,000 kHz Number of supported channels 12 Index of default channel 4 Center frequency of default channel 910,00000 MHz Table 7 Channel index Channel center frequency [MHz] 1 903,64900 2 905,76600 3 907,88300 4 910,00000 5 912,11700 6 914,23400 7 916,35100 8 918,46800 9 920,58500 10 922,70200 11 924,81900 12 926,93600
Federal Communications Commission (FCC) Statement You are cautioned that changes or modifications not expressly approved by the part responsible for compliance 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. 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 of the device. FCC RF Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Industry Canada (IC) Statement This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Canada, avis d’Industry Canada (IC) Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes: (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement. Caution: Exposure to Radio Frequency Radiation. To comply with RSS 102 RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the antenna of this device and all persons. Pour se conformer aux exigences de conformité CNR 102 RF exposition, une distance de séparation d'au moins 20 cm doit être maintenue entre l'antenne de cet appareil et toutes les personnes
End Product Labeling: The final end product must be labeled in a visible area with the following: “Contains FCC ID: U4F0022, IC: 3862D-006”.
Antenna list: Rubber Antenna P/N: ANT-916-CW-QW Rubber Antenna P/N: G-RA0K14155047-BON Printing Antenna P/N: 663316020

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