Product overview
The CroSkylink C21D-50 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. Equipment connections comprise one Ethernet port, two serial ports configured as RS232 by default, and one USB 2.0 port. Six bandwidth options span 1.4MHz to 40MHz. Frequency options include customizable 600M and 1.4G configurations; customization requires a customer request, and users cannot change these settings themselves.
Maximum transmission distances are 50km for star networks and 30km for MESH networks, subject to the typical application conditions: point-to-point communication, dual antennas, a 1437MHz working band, 20M bandwidth, maximum transmit power, 25°C, 50% humidity and rated-voltage power. Electrical requirements are 16V~27V and maximum consumption of 27±5W. Continuous operation requires proper heat dissipation. Correct antenna connections are mandatory; spacing must exceed 0.2m within a module and 1m between modules, including powered-off modules. Receiving-port signal strength must remain below 10dBm.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | CroSkylink C21D-50 |
| Product purpose | Broadband access and data transmission |
| Network topologies | Point-to-point, point-to-multipoint star network and Mesh network |
| System architecture | Flat system architecture |
| Operating voltage | 16V~27V |
| Maximum power consumption | 27±5W |
| Transmit power | 33±3dBm (max) |
| Maximum output power | 33dBm |
| Maximum transmission power | Up to 46dBm |
| Storage temperature | -40°C to +85°C |
| Operating temperature | -20°C to +55°C |
| Humidity | 5% to 95% RH |
| Bandwidth options | 1.4MHz/3MHz/5MHz/10MHz/20MHz/40MHz |
| Frequency bands | 600M/1.4G (customizable)Customization available upon customer request; users cannot modify the settings themselves. |
| Frequency customization | 600M, 1.4G and other frequency bands can be customized; users cannot modify the settings themselves.Customization according to customer requirements and on-site environment; available only upon customer request. |
| Maximum star network transmission distance | 50kmStar network; typical application conditions: point-to-point communication, dual antenna working mode, 1437MHz working band, 20M bandwidth, maximum transmit power, working temperature 25°C, humidity 50%, rated voltage power supply. |
| Maximum MESH network transmission distance | 30kmMESH network; typical application conditions: point-to-point communication, dual antenna working mode, 1437MHz working band, 20M bandwidth, maximum transmit power, working temperature 25°C, humidity 50%, rated voltage power supply. |
| Automatic controls | Automatic power control and frequency control |
| Ethernet interface | 1 Ethernet port |
| Serial interfaces | 2 serial ports (default RS232)Default serial configuration: RS232. |
| USB interface | 1 USB 2.0 port |
| Typical application configuration | Point-to-point communication; dual antenna working mode; 1437MHz working band; 20M bandwidth; maximum transmit power; working temperature 25°C; humidity 50%; rated voltage power supply. |
| Antenna connection requirement | Antenna connection is mandatory to prevent device damage. Improper connections 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 0.2m; between modules: greater than 1mApplicable to powered-on and powered-off modules. |
