RCQ2-868
14Pages

Catalog excerpts

RADIO MODEM Wireless Modules 868MHz Multichannel Radio Modem based on RadioControlli RCS1KSMT-868 device The RCQ2-868 is a high performance wireless modem providing a reliable low cost serial data communications link that can be used for many data communications applications at an exceptionally competitive price. The modem operates in the ISM 868 MHz band. The RF modem is very simple to use and provides a wireless RS232 link with a RF data rate of up to 100 kbps. The transceivers have the functions of a complete radio modem and simply require CMOS/TTL data at the transmit input and the corresponding transceiver(s) output the same data. Preamble and CRC are automatically generated and added to the RF transmission. Possible applications include one-to-one and multi-node wireless links in applications including security EPOS, wireless sensor network, industrial process monitoring and computer networking. Because of their small size and low power requirements, (the consumption in power down mode is < 2uA) this module is a ideal for use in portable, battery- powered applications such as hand-held terminals. - Wireless security systems - Home and building automation - Automatic Measure Reading - Industrial Control and Monitoring - Wireless Sensor Network - EPOS Terminal Operating Mode : - Radio Modems Application Inside - Serial Data Interface with Handshake - Host Data Rate up to 38400 Baud - Very Stable Operating Frequency Radiocontrolli s.r.l refuses any responsibility for irregular uses of the devices and for any possible lack or inaccuracy of the data and reserves the right to change in whole or in part these information without notice.

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RADIO MODEM Wireless Modules Mechanical dimensions (*) Is possible on request get up to 115200 baud rate Every time you change the speed (baud rate) is necessary to RESET a device. Radiocontrolli s.r.l refuses any responsibility for irregular uses of the devices and for any possible lack or inaccuracy of the data and reserves the right to change in whole or in part these information without notice.

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RADIO MODEM Wireless Modules Technical Characteristics Supply Voltage ls Supply Current ( RX mode) ls Supply Current (TX mode / +20dBm) I Supply Current (TX mode / 0 dBm ) Supply Current sleep mode Power up to stable receiver data out Power up to full RF Power out Standby to Receive mode Standby to Transmit mode RX Frequency Range CEPT/ERC/REC 70-03 RF Sensitivity (1.2 Kb/sec Data Rate) Frequency Deviation GFSK Manchester encoded data rate Operating Temperature Range The RCQ2-868 Radio Modem has applications in many areas where reliable half duplex communications are required over ranges up...

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RADIO MODEM Wireless Modules The Data Rate pins (11,12) are read when the RESET is performed (pin 23). The RCQ2-868 must be put into standby mode by taking the PD pin low (pin 7 = GND) to change the Baud Rate selection. The size of RF data packets are set in configuration mode. If fewer bytes are received by the RCQ2-868 module than the preset size, then after 10ms from the last byte received from the host, the RF packet will be processed (expanded to meet the preset packet size) and transmitted. The RF data packet size must be set the same for transmitter and receiver, otherwise the...

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RADIO MODEM Wireless Modules The RF Channel is calculated in this mode: 868 MHz working frequency : Configuration value (decimal) = [(desired RF frequency / 2) - 422.4MHz] * 10 The Configuration pin (Pin 6) must be low (ground) to set up the RCQ2-868 module. If the Configuration pin is still low at the end of the configuration then the module will send the current configuration back to the host. To retrieve the current configuration without changing any options the host can send a single byte to the module and wait for theresponse. The RCQ2 module will accept a short configuration after a...

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RADIO MODEM Wireless Modules RF Channel frequency for default is fixed at 868.2MHz (parameter=75). It is recommended use this device in accordance with the CEP/ERC REC 70-03 (below band plan). Radiocontrolli s.r.l refuses any responsibility for irregular uses of the devices and for any possible lack or inaccuracy of the data and reserves the right to change in whole or in part these information without notice.

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RADIO MODEM Wireless Modules The Configuration pin (Pin 6 must be low (ground) to enter into configuration mode. ^ Hercules SETUP utility by HW-group.com UDP Setup Serial | TCP Client | TCP Server | UDP | Test Mode | About | Received/Sent data Serial port COM2 opened Data size Hercules SETUP itilitv Software used : Hercules SETUP Open the serial port with this Set the Hercules software to receive hexadecimal character ( press the right mouse button). ^ Hercules SETUP utility by HW-group.com UDP Setup Serial | TCP Client | TCP Server | UDP | Test Mode j About | Received/Sent data We hold...

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RADIO MODEM Wireless Modules % Hercules SETUP utility by HW-group.com UDP Setup Serial | TCP Client | TCP Server | UDP | Test Mode | About | Received/Sent data We hold this button, in this mode we sent the new Configuration String (hexadecimal string) We have changed the parameters in The module answer confirming the Set the Configuration pin (Pin 6) to HIGH for operation mode. 7.0 Example of Operation Mode (One to One) This example is performed according to the following schematics and using the software Hercules SETUP utility (free use). Radiocontrolli s.r.l refuses any responsibility for...

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