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研华BB-UHR304 是一款ULI-414CI 4端口高稳固力USB全速隔离集线器，支持宽工作温度（-40至80°C），USB 2.0–全速（12 Mbps），坚固的金属外壳-面板和DIN导轨安装
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Specifications
USB Technology
| Model #: | Upstream Port: | Downstream Ports: | Data Rate, each port: | Standards: |
| ULI-414H | (1) Type B | (4) Type A | Up to 5 Gbps | SuperSpeed 3.2Gen 1 (2.0, 1.1backward compatible) |
| ULI-417H | (7) Type A | |||
| ULI-417HC |
Isolation & ESD Protections
| Model #: | Isolation: | ESD Protection: | Surge Protection: |
| ULI-414H | – | 15 kV air, 8kV contact | ± 0.5 kV DC ports,± 1 kV signal ports |
| ULI-417H | |||
| ULI-417HC | 2.5kV |
Environmental
| Model #: | Operating Temperature: | Storage Temperature: | Relative Humidity: |
| ULI-414H | 0 to +50 °C | -20 to +50 °C | 0 to +85%,non-condensing |
| ULI-417H | |||
| ULI-417HC | -10 to +60 °C* | -20 to +70 °C | 5 to +95%,non-condensing |
* -10 to +60 °C with external power, -10 to +50 °C with USB power.
Power
| Model #: | Source: | Input Voltage: | Connection: | Consumption: | Downstream, per port: |
| ULI-414H‡ | External PSU (required, not included) | External PSU: 9-30 Vdc | 3-pin terminal block OR DC power jack | 30 W | 2.4 A‡ |
| ULI-417H‡ | 45 W | ||||
| USB Bus Power: 500 mA max. shared byall ports | |||||
| ULI-417HC | USB Bus Power or External PSU (not included) | External PSU: 10-30 Vdc | 2-pin terminal block OR DC power jack | 25 W | External PSU: Each downstream port supports up to 1.2A,with a maximum of 3.6Ashared by all ports. |
‡ Each downstream port supports up to 2.4A to a maximum of 27W (ULI-414H, BB-USH204-B) or 42W (ULI-417H, BB- USH207-B) total.
Mechanical
| Model #: | Enclosure: | Mounting: | Dimensions, mm: | Weight, gm: | USB Cable: |
| ULI-414H | Industrial grade, metal | DIN rail, Wall, Desk | 138.8 x 68.5 x 25 | 600 | Included, 2.0 m |
| ULI-417H | 620 | ||||
| ULI-417HC | 138.8 x 68.5 x 30 | 650 | Included, 1.0 m |
Meantime Between Failures (MTBF)
| Model #: | Hours: |
| ULI-414H | 275611 |
| ULI-417H | 182880 |
| ULI-417HC | 426207 |
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