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研华BB-232SPHI4 是一款 RS-232 DB25，4 kV隔离，端口供电的串口中继器，支持数据传输速率高达115.2 Kbps。
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Ordering Information
| Model No. | ChannelsProtected | DTEConnector | DCEConnector | Isolation |
| BB-232SPHI4 | 4 | DB25 Female | DB25 Male | 4,000 V |
Specifications
| Serial Technology | |
| Data Rate | 115.2 kbps, maximum |
| RS-232 | |
| Connector & Signals - DTE | DB25 female (DTE)TD(2), RD(3), RTS(4), CTS(5), DTR(20) |
| Connector & Signals - DCE | DB25 male (DCE)TD(2), RD(3), RTS(4), CTS(5), DSR(6), CD(8) |
| Transmission Mode | Asynchronous, half-duplex or full-duplex, point-to-point |
| Power | |
| Source | Port-powered from RS-232 data and handshake lines |
| Optional External Source | 12 VDC |
| External Connections | 2.5mm power jacks (tip positive) orDB25 connectors pins 11 (+) and 12 (-) |
| Isolation | |
| Volts/Duration | 4,000 Volts RMS isolation for 1 minute(may be limited by external supply) |
| Meantime Between Failures (MTBF) | |
| MTBF | 351896 |
| MTBF Calc. Method | MIL217F Parts Count Reliability Prediction |
| Mechanical | |
| Dimensions | 10.4 x 5.8 x 2.4 cm (4.1 x 2.3 x 0.95 in) |
| Min. Air Clearance between DTE & DCE Sides | 5 mm (0.197 in) |
| Min. Creepage Distance between DTE & DCE Sides | 8 mm (0.315 in) |
| Environmental | |
| Operating Temperature | 0 to +70 °C (+32 to +158 °F) |
| Storage Temperature | -55 to +125 °C (-67 to +257 °F) |
| Operating Humidity | 10 to 90%, non-condensing |
| Regulatory – Approvals / Standards / Directives | |
| FCC Part 15, CISPR, EN55032 | |
| CE - Directives | 2014/30/EC – Electromagnetic Compatibility 2011/65/EU amended by (EU) 2015/863 Reduction of Hazardous Substances Directive (RoHS)2012/19/EC – Waste Electrical & Electronics Equipment (WEEE) |
| CE - Standards | EN 55022 +AC – Information Technology Equipment - Class B, RF EmissionsEN 61000-6-1 – Generic Immunity for Residential, Commercial & Light-Industrial Environments |
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