


| Item | OBCS System 2021 | OBCS System 2024 |
|---|---|---|
| Type | Surface Stations | Surface Stations |
| Geophone | 3C Orthogonal, Directional 10 ~ 240Hz |
3C Orthogonal, Omni-Directional 15 ~ 190Hz |
| Accelerometer | 3-Axis Acc | 3-Axis Acc |
| No. of Receiver | 4 | 6 |
| ADC Resolution | 24bits | 24bits |
| Sample Interval | 1ms | 1, 2, 5ms |
| Communication Interface | RS485 | Optic Ethernet |
| Communication Cable | UTP | Optic |
| Cable Length | 400m | 2,000m (Site-specific) |
| Data Storage Format | miniSEED | miniSEED |
| Maximum Operating Depth | 400m | 400m |