这个产品是无效的且被替换: RF411A.
| Services Available | |
|---|---|
| Repair | No |
| Calibration | No |
| Free Support | No |
概览
RF431 射频电台包含一个USB 端口，这让它更容易连接到新一些的没有RS-232端口的计算机。RF431 射频电台的操作频段是920 到 928 MHz，适用于澳大利亚和以色列。RF431的功率只有100 mW，可发送数据到另一个RF431 电台、RF411 电台或CR211(X) 数据采集器。
RF431 支持 点-点 或 点-多点 的通讯方式。尽管它通常用作基站modem/电台，RF431也能连接到数据采集器的RS-232 端口，作为野外 modem使用（需要一根空modem线缆和一根野外电源线）。
优势与特点
- Rugged, low-cost transceivers
- Can be used in the field as a transceiver or in the office as the base station
- Transmits up to one mile with omnidirectional antenna; up to 10 miles with higher gain directional antennas at ideal conditions
- Settings stored in non-volatile memory
- USB port for connecting to a computer; RS-232 port for connecting to a data logger
- Frequency-hops over 25 channels avoids interference from other spread spectrum radios
- Optional extended temperature testing
- Faster communication due to elimination of some small "link state packets"
- Ability to have stand-alone RF router/repeaters (up to 8 repeaters)
- Greater immunity to interference and RF collisions by using RF retries
- Reduced power consumption by the data logger, as the radios perform "packet address filtering"
- Built-in setup menus allow access to advanced functionality
- Designed for use in PakBus networks
图像
相似产品
技术说明
通过提供用户可选择的频段跳频模式，RF431减小了来自其它射频设备的无线电干扰的敏感性。射频电台在相对宽波段的频带上，传播正常的窄波段信息讯号。这种处理方法使得通讯噪声更低，和更不易受无线电源的干扰，例如寻呼机和蜂窝电话。
RF431 和 RF411的区别
RF431 电台在功能上与RF411一样。两者之间的差别在于，RF431 具有USB 和 RS-232端口，而RF411 具有RS-232 和 CS I/O端口。
产品规格
| Operating Frequency | 920 to 928 MHz |
| Type | Frequency Hopping Spread Spectrum (FHSS) Transceiver |
| USB Baud Rate |
38.4k, 19.2k, 9600, 4800, or 1200 bps If an RF431 radio has an operating system prior to OS2, its USB port will only communicate at 38.4 kbps. Therefore, the operating system of an RF431 radio may need to be updated to a newer version if the network will contain data loggers that do not support 38.4 kbps (e.g., CR200(X), CR510, CR10X). |
| RS-232 Data Rate | 38.4k, 19.2k, 9600, 4800, or 1200 bps |
| Channel Capacity | 65,000 Network Identifiers share 25 hop channels. |
| Frequency Hopping Patterns | Six different selectable patterns |
| Receiver Sensitivity | -110 dBm at 10-4 bit error rate (Campbell Scientific protocols will issue retries wherever a bit error occurs.) |
| Interference Rejection | 70 dB at pager and cellular phone frequencies |
| Transmitter Power Output | 100 mW (nominal) |
| Antenna Connector | Reverse polarity SMA |
| FCC ID | OUR9XTREAM |
| Power | 9 to 16 Vdc |
| LEDs | Power on, TX, RX, diagnostics |
| RS-232 Connector | 9-pin “D” female (4 wire: Tx, Rx, CTS, GND) |
| Power Connector | Barrel plug, center positive 12 V (used to connect the 14291 Field Power Cable) |
| Standard Operating Temperature Range | -25° to +50°C |
| Extended Operating Temperature Range |
-55° to +85°C The push button that allows you to check/edit programmable settings while the radio is connected to a computer may not operate at temperatures colder than -25°C. |
| Dimensions | 11.4 x 7.0 x 2.9 cm (4.9 x 2.8 x 1.2 in.) |
| Weight | 227 g (8 oz) |
Average Current Drain |
|
| Standby | < 1 mA (power-saving options used) |
| Receiving | 26 mA |
| Transmitting | 78 mA |
兼容性
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
数据采集器
| Product | Compatible | Note |
|---|---|---|
| 21X (retired) | ||
| CR10 (retired) | ||
| CR10X (retired) | ||
| CR200X (retired) | ||
| CR206X (retired) | ||
| CR211X (retired) | ||
| CR216X (retired) | ||
| CR23X (retired) | ||
| CR295X (retired) | ||
| CR3000 (retired) | ||
| CR500 (retired) | ||
| CR5000 (retired) | ||
| CR510 (retired) | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) | ||
| CR9000 (retired) | Although compatible, RF431 radios do not support the CR9000(X)'s fastest communication rates, and are therefore not practical for many of their applications. |
Additional Compatibility Information
Communications
Other Spread-Spectrum Radios
Campbell Scientific does not recommend using the RF431 in networks containing FGR-115 or RF450 radios. However, RF431 radios can be used in networks containing RF411 and RF410 radios. RF431 radios in networks that include RF410 radios must use the Transparent protocol setting. Also, If RF410 and RF431 radios will be in the same RF proximity, do not use for the RF410 Net Address: 28, 44, 52, 56, or 60. RF410 radios with Net Addresses of 28, 44, 52, and 56 interfere with RF431 radios with Net Addresses of 0, 1, 2, and 3, respectively. The RF410 Net Address of 60 interferes with all RF431 Net Addresses.
Transparent and PakBus Protocols
Do not mix RF431 radios set to the Transparent protocol with RF431 or RF411 radios set to either of the PakBus protocols, since this will produce RF traffic without any RF communications. However radios with the PakBus Aware and PakBus Node settings can coexist in the same network (i.e., some radios set to PakBus Aware and some radios set to PakBus Node).
Data Logger Considerations
If an RF431 radio has an operating system prior to OS2, its USB port will only communicate at 38.4 kbps. Therefore, the operating system of an RF431 radio may need to be updated to a newer version if the network will contain data loggers that do not support 38.4 kbps (e.g., CR200(X), CR510, CR10X).
下载
RF430 USB Drivers v.2.08.28 (1.64 MB) 05-03-2013
RF430 USB Drivers for the Windows operating system. 32 and 64 bit support for Windows 8, Windows 7, Windows Vista and Windows XP.
Note: Drivers should be loaded before plugging the RF430 into the computer.
常见问题解答
RF431: 2
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Download the RF430 driver from the Downloads page.
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Antenna selection depends on multiple criteria:
- Consider how many stations a particular station needs to communicate with. For remote stations in communication with only one repeater or base station, a directional or Yagi antenna may be an appropriate choice. In contrast, repeater stations that receive data from many different locations will probably require an omnidirectional antenna.
- Consider if a high-gain antenna is needed to overcome the path between two points. Higher-gain antennas are larger and more expensive.
To help with antenna selection and site placement, consider renting and using a demo kit to test the pathway quality. Campbell Scientific offers a 900 MHz demo kit for the RF401, RF430, CR206X, and AVW206, as well as a demo kit for the RF450. Contact Campbell Scientific for assistance.