RF422 CAMPBELL | Alldatasheet
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868 MHz Radio
Does not require individual operational license in Europe Robust serial communication, optimized for PakBus networks Low power (<2 mA idle) during periods of inactivity Supports point-to-point with RF retries and point-to-multi- point operations Remote diagnostics using PakBus node operations Operational power can be supplied over USB when attached to PC Overview The RF422a is an 868 MHz SRD860 radio designed to provide license-free operation for wireless serial communications in Europe. The RF422 transmits data at 10 kbps with a maximum power of 25 mW, and it employs listen-before-talk (LBT) and adaptive-frequency-agility (AFA) to provide a robust link of up to 100 m within buildings and 5 km with full line-of-sight. The RF422 supports point-to-point and point-to-multipoint datalogger communications and PakBus repeater operation. www.campbellsci.eu/rf422 More info: +44(0) 1509 828 888 System Components An RF422 radio needs to be at both the base station and field site. Each radio requires an antenna that does not exceed 2.1 dBi in gain over the 863 to 870 MHz frequency range, such as the 009964 whip antenna offered by Campbell Scientific. The RF422 has a reverse polarity SMA (RPSMA) connector for attaching the antenna or antenna cable. Powering the Radio At the base station, the radio typically uses ac power that is either supplied by the 004202 (Euro)/004248 (UK) AC/12V power supply or through the PC via the USB port and cable. At the field site, the radio is typically powered by the datalogger through the CS I/O port. The 006725 Field Cable can also be used to connect the radio to an appropriate 12 Vdc power supply. This field cable is required when the radio is connected to the datalogger’s RS-232 port instead of the CS I/O port. aCampbell Scientific also offers the RF407 and RF412 900 MHz spread spectrum radios. These radios are used in North America (RF407) or Australia/New Zealand (RF412). For more information, see the RF407 and RF412 product brochure.
80 Hathern Road, Shepshed, LE12 9GX UK | +(0)1509 828888 | sales@campbellsci.co.uk | www.campbellsci.eu UK | AUSTRALIA | BRAZIL | CANADA | CHINA | COSTA RICA | FRANCE | GERMANY | SE ASIA | SOUTH AFRICA | SPAIN | USA © 2012 Campbell Scientific July 17, 2017 Specifications Type: SRD860, LBT+AFA Restrictions: These radios can be used throughout Europe, although there are some restrictions in some countries. See REC70-03E, CEPT recommendation on the use of SRD in the h1.3 wavebanda Listen before talk (LBT) and automatic frequency agility (AFA) to comply with ETSI duty cycle requirements. Radio communication effective duty cycle = (number of channels * 100) / 3600. Channel Capacity: 30 channels (default), software configurable for the purpose of meeting local regulations; 10 sequences for reducing interference through channel hop. LBT+AFA performance Channel spacing: 100 kHz Receiver bandwidth: 150 kHz Modulation bandwidth: < 300 kHz LBT threshold: < -88 dBm TX on time: < 1 s Frequency Range: 863 to 870 MHz Transmitter Power Output: 2 to 25 mW, software selectable, assuming 2 Bi antenna gain Receiver Sensitivity: -106 dBm RF Data Rate: 10 kbps Antenna Connector: Reverse Polarity SMA (RPSMA) jack LEDs: Power/Tx, Rx RS-232 Connector: 9-pin D female RS-232 Baud Rate: 1200 to 115200 bps CS I/O Connector: 9-pin D male CS I/O Modes: SDC 7, 8, 10, 11, and ME master USB: USB Type B jack Power: 9 to 16 Vdc Power Connector: 2.5 mm dc power jack Operating Temperature Range: -40° to 70°C Weight Without “Ships With” Items: 136 g (4.8 oz) With “Ships With” Items: 283.5 g (10 oz) Average Current Drain Transmit: < 25 mA (25 mW TX Power) Receive: 15 mA Stand-by: < 0.5 mA (depending on power saving mode) Certifications CE ETSI EN 306 220-2 V2.3.1 aCurrently Sweden, Norway and Greece do not allow full use of the 863-870 MHz band. The wavebands used can easily be limited to suit the country requirements by setting a mask in the radio settings. The restrictions in those countries will not limit the general performance of the radios. bDimensions are from the tip of the antenna connector to the other side of the case, and from the bottom of the case to the top of the DB9 connector jack screw. The width includes the thickness of the screw heads on the screws that hold the case together. Please contact Campbell Scientific for further details. Antenna: 009964: Whip antenna for use on the desktop and indoor networks (2.1 dBi). 009962: Enclosure mount, wide-band antenna, mounts through the top of an enclosure with 0.4 m cable. Gain ~ 2 dBi. 009965: Wall/Pole mount antenna, with 5 m of cable. Gain: ~ 2 dBi (incl. cable losses). Suitable for use at the base or at a station where the antenna needs to be raised. Fits poles 30-54 mm in diameter. Other higher gain pole mount antenna are available, but the gain must not exceed 2.1 dBi, after allowing for losses in the cable. Note: raising the antenna is generally beneficial when trying to achieve maximum range. Lightning protectors are available to special order and are recommended for installations where lightning is common.