Product overview
The CroSkylink C21D-3 provides broadband access and data transmission using a flat system architecture. It supports point-to-point links, point-to-multipoint star networks and Mesh networks, with automatic power and frequency control. Integration connections comprise two Ethernet ports, two RS232 serial ports and two 3.3V TTL serial ports, all with PH2.0 interfaces. Bandwidth options are 1.4MHz, 3MHz, 5MHz, 10MHz and 20MHz. Frequency options are 800M, 1.4G, 1.5G and 2.4G, customized according to customer requirements and field conditions. Users cannot modify those frequency settings themselves.
Transmission range is up to 3km under the typical configuration: point-to-point communication, dual antennas, 1437MHz working band, 20M bandwidth and maximum transmit power, at 25℃, 50% humidity and rated-voltage supply. Electrical requirements are 12V±10%, with maximum consumption of 8W and maximum transmit power of 30dBm. Operating temperature is -20℃ to +55℃, storage temperature is -40℃ to +85℃, and humidity is 5%–95% RH. Correct antenna connection is mandatory to prevent damage or serious performance differences. Continuous operation requires proper heat dissipation. Receiving-port signal must stay below 10dBm; antenna separation must exceed 0.1m within a module and 1m between modules, powered on or off.
Specifications
| Specification | Value & conditions |
|---|---|
| Product identity | CroSkylink C21D-3 |
| Product purpose | Broadband access and data transmission |
| System architecture | Flat system architecture |
| Network topologies | Point-to-point, point-to-multipoint star network and Mesh network |
| Operating voltage | 12V±10% |
| Maximum power consumption | 8W |
| Transmit power | 30dBm (max) |
| Storage temperature | -40℃～+85℃ |
| Operating temperature | -20℃～+55℃ |
| Humidity | 5%～95% RH |
| Bandwidth options | 1.4MHz/3MHz/5MHz/10MHz/20MHz |
| Frequency options | 800M/1.4G/1.5G/2.4G (customizable)Customization based on customer requirements and field conditions; users cannot modify the settings themselves. |
| Transmission range | Up to 3kmPoint-to-point communication, dual antenna working mode, 1437MHz working band, 20M bandwidth, maximum transmit power, 25℃ working temperature, 50% humidity and rated-voltage power supply. |
| Automatic controls | Automatic power control and frequency control |
| Ethernet interfaces | 2 Ethernet ports with PH2.0 interface |
| RS232 interfaces | 2 RS232 serial ports with PH2.0 interface |
| TTL interfaces | 2 3.3V TTL serial ports with PH2.0 interface |
| Frequency customization restrictions | Frequency customization depends on customer requirements and field conditions; users cannot modify the settings themselves. |
| Typical application configuration | Point-to-point communication; dual antenna working mode; 1437MHz working band; 20M bandwidth; maximum transmit power; 25℃; 50% humidity; rated-voltage power supplyPoint-to-point communication with dual antennas, 1437MHz working band, 20M bandwidth, maximum transmit power, 25℃, 50% humidity and rated-voltage power supply. |
| Antenna connection requirement | Antenna connection is mandatory; improper connection can damage the device or cause serious performance differences. |
| Heat dissipation requirement | Proper heat dissipation requiredContinuous operation. |
| Signal strength limit | Less than 10dBmReceiving port. |
| Antenna spacing requirements | Within the same module: greater than 0.1m; between modules: greater than 1mApplicable to powered-on and powered-off modules. |
