🌍 Multi-Standard Compatibility: Same RSU hardware supports China GB/T 20851, Japan DSRC, Europe CEN DSRC, and compatible with Vietnam/Thailand 5.8GHz systems via firmware configuration. One PCBA, global reach.
DSRC 5.8GHz roadside antenna unit for ETC lane communication. ASK modulation with dual-frequency support (5.830/5.840 GHz downlink, 5.790/5.800 GHz uplink). Right-hand circular polarization, software-adjustable EIRP up to 33dBm, communication range ≥20m. TDES encryption, ≥70,000-hour MTBF, 15-year lifespan.
| Parameter | Specification |
|---|---|
| Modulation | ASK (Downlink & Uplink) |
| Encoding | FM0 (DL), NRZI (UL) |
| Downlink Frequency | 5.830 / 5.840 GHz |
| Uplink Frequency | 5.790 / 5.800 GHz |
| EIRP | ≤33dBm, software adjustable |
| Polarization | Right-hand circular |
| Beam Width | HPBW 20°(X) × 40°(Y) |
| Comm Range | ≥20m |
| Comm Zone (5.5m) | 4.5m(X) × 3.5m(Y) |
| Encryption | TDES |
| Error Detection | CRC16 (DL), BCC (UL) |
| BER | ≤10⁻⁶ |
| Power | +28VDC (max 1300mA) |
| Serial | RS232/422 @ 115200bps |
| Vehicle Detect | 4ch opto-isolated, TTL |
| Control Output | 2ch relay, 24V 1A |
| EMC Immunity | 10V/m, 0.1-1000MHz AM |
| MTBF / Lifespan | ≥70,000h / 15 years |
| Dimensions | Ant: 165×165×20mm, Host: 158×148×35mm |
| Temp (Op / Store) | -40°C~+75°C / -60°C~+80°C |
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