i-ais-STA
Secure Class A AIS Transponder
Secure Communication over AIS Network
i-ais-STA AIS Transponder is a Class-A AIS mobile device, which provides secure communication functionality in addition to the standard AIS features.
i-ais-STA has three operating modes:
Active: Standard AIS mode (acts as a standard Class-A Transponder)
Passive: Receive only mode (only listens, without any transmission)
Protected: Secure mode (encrypts transmitted AIS data)
The secure mode of the i-ais-STA is provided with well known AES encryption algorithm.
The key for AES is loaded to the device with a special SW over serial communication channel.
- Operating modes (Active / Passive / Protected)
- 8 x RS-422 ports (IEC61162-2 comp.)
- Robust housing (IP66)
- Fully compliant with IEC and ITU standards
- RTCA/DO-160E compatibility
- Compatible with i-SEA Platform
General Specifications
| Operating Temperature Range | -15 C to +55 C |
| Storage Temperature Range | -30 C to +70 C |
| Humidity | Up to 93% at 40 C non-condensing |
| Power Supply Voltage | 12 / 24 V DC (max 10V – 30V DC) |
| Power Consumption | 500mA nominal @ 12 V DC |
| Size | 200 mm x 220 mm x 140 mm |
| Weight | < 4.4 kg |
| Connectors | VHF Antenna: N Female GPS Antenna: TNC Female Data Connector: MIL-DTL-38999 comp. Power Connector: MIL-DTL-38999 comp. |
Transmitter Specifications
| Operating Frequency Range | 156.025 – 162.025 MHz (VHF-P frequencies are also supported) |
| Channel Spacing | 25 kHz |
| Transmitter Output Power | 12.5W (41dBm) nominal 1W (30dBm) low power mode |
| Modulation | GMSK |
Receiver Specifications
| # of Receivers | 2 x AIS 1 x AIS & DSC |
| Operating Frequency Range | 156.025 – 162.025 MHz (VHF-P frequencies are also supported) |
| Channel Spacing | 25 kHz |
| Receiver Sensitivity | Better than -107dBm |
| Co-Channel Rejection | Better than 10 dB |
| Adjacent Channel Selectivity | > 70 dB |
| Spurious Response Rejection | > 70 dB |
| Intermodulation Response Rejection | > 86 dB |
| Blocking or Desensitization | > 86 dB |
| Spurious Radiation (conducted) | < -57 dBm |
Interfaces
| Sensor Input | 8 x RS-422 (IEC61162-2 compatible / can be configured as complies with IEC61162-1 as well) |
| Other | Alarm Output
Pre Pulse Output |