Wireless modem RCQ2-434
RFRS232ISM band

Wireless modem - RCQ2-434 - Radiocontrolli S.R.L. - RF / RS232 / ISM band
Wireless modem - RCQ2-434 - Radiocontrolli S.R.L. - RF / RS232 / ISM band
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Characteristics

Type
wireless
Network
RF, RS232, ISM band
Application
outdoor, industrial
Other characteristics
multi-channel, low-power

Description

Product Overview: The RCQ2-434 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 433 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. The RCQ2-434 can use any channel in 100 (200) KHz step. 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 < 2µA) this module is ideal for use in portable, battery-powered applications such as hand-held terminals. Technical Characteristics: - Supply Voltage: 2.20 - 3.6 Volt - Current Consumption (RX mode): 20 mA - Current Consumption (TX Mode +20dBm): 85 mA - Current Consumption (TX Mode +0dBm): 10 mA - Current Consumption Sleep Mode: < 2 µA - Power up to stable receiver data out: 30 msec - Power up to full RF Power out: 30 msec - Standby to Receive mode: 1 msec - Standby to Transmit mode: 1 msec - Frequency Range: 433.1 - 434.1 MHz - RF Output Power: 1 to +20 dBm - RF Sensitivity (1.2Kbit/sec Data rate): -121 dBm - Frequency Deviation: ±50 KHz - GFSK Manchester encoded data rate: 100 Kbps - Operating Range Temperature: -10 to +55 °C Pinout Table: - Pin 1: NIRQ - In this application this pin must be connected to pin 21 with a pull-up resistor. - Pin 2: SDN - In this application this pin must be connected to pin 26 with a pull-down resistor. - Pin 3: LED_TX - Led TX (open collector input/output max 4mA) - Pin 4: LED_RX - Led RX (open collector input/output max 4mA) - Pin 5: CTS - UART Clear to Send - Output - Pin 6: CONF - Configuration Mode - Input - Pin 7: PD - Power Down Mode - Input - Pin 8: RXD - UART Tx- Output - Pin 9: TXD - UART RX - Input - Pin 10,16,17,18,19,20,22: ---- - Not Used - Pin 11: DR1 - DR1 Baud Rate Selection - Input - Pin 12: DR2 - DR2 Baud Rate Selection - Input - Pin 13: RTS - UART Request to Send - Input - Pin 14,15: GND - Ground - Pin 21: P22 - In this application connected to pin 1 - Pin 23: RST - Device reset - Pin 24,25: VCC - Power Supply - Pin 26: P20 - In this application connected to pin 2 Key Features: - High performance wireless modem - Operates in ISM 433 MHz band - Wireless RS232 link, up to 100 kbps RF data rate - Simple to use, requires only CMOS/TTL data - Preamble and CRC automatically generated - 100 (200) KHz channel step - Low power consumption (<2µA in power down mode) - Ideal for portable, battery-powered applications Typical Applications: - Security - EPOS - Wireless sensor networks - Industrial process monitoring - Computer networking - Hand-held terminals Technical Specifications: - Supply Voltage: 2.2V - 3.6V - Current Consumption (RX): 20mA - Current Consumption (TX +20dBm): 85mA - Current Consumption (TX +0dBm): 10mA - Current Consumption (Sleep): <2µA - Frequency Range: 433.1 - 434.1 MHz - RF Output Power: 1 to +20 dBm - RF Sensitivity: -121 dBm (1.2Kbit/sec) - Frequency Deviation: ±50 KHz - Data Rate: up to 100 Kbps (GFSK Manchester encoded) - Operating Temperature: -10°C to +55°C

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Meet this supplier at the following exhibition(s):

electronica 2026
electronica 2026

10-13 Nov 2026 Munich (Germany)

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    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.