SHD-240A-JB/BNC is a general-purpose wiring box for digital cards produced by Sanhui Information Engineering Co., Ltd. It supports the conversion of RJ48C, RJ48C/M and RJ48T interfaces to RJ48C or BNC interfaces, and has multiple installation methods to meet the needs of most users.
The SHD-240A-JB/BNC is a universal wiring box for digital voice cards, enabling conversion between RJ48C, RJ48C/M, RJ48T and RJ48C or BNC interfaces. It supports up to eight E1 ports and fits a standard 19‑inch 1U rack.
The manual includes a product overview, detailed installation procedures, wiring and structure diagrams, accessory information, safety precautions, and a full list of technical parameters. It also provides tables for mapping RJ48C/RJ48C/M/RJ48T inputs to BNC or RJ48C outputs. This manual is written in Chinese.
| Dimensions (L×W×H) | 482 mm × 110 mm × 44 mm |
|---|---|
| Weight | ≈1150 g |
| Insulation Resistance | > 10 MΩ |
| Operating Temperature | 0 °C – 50 °C |
| Storage Temperature | 0 °C – 80 °C |
| Maximum Humidity | ≤ 60 % (no condensation) |
| Connectors | BNC × 16, RJ48C × 16, RJ48T × 1 |
The box provides sixteen BNC ports.