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研华BB-422TTL 是一款RS-422 DB25 F至5V TTL DB25 M串行转换器，打开焊盘以更改引脚配置
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免费电话：400-880-8951
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Specifications
| Serial Technology | |
| Data Rate | Up to 115.2 Kbps baud |
| RS-422 Connector | DB25 female |
| RS-422 Signals
(EIA-530 pinout) |
TDA(-), TDB(+), RDA(-), RDB(+), RTS A(-), RTS B(+), CTS A(-),
CTS B(+) |
| TTL Connector | DB25 male |
| TTL Signals | TD, RD, RTS, CTS |
| Vdc Level | 5 V |
| Polarity | |
| TTL Input | V(A) - V(B) |
| High | Negative |
| Low | Positive |
| TTL Output | RS-422 / EIA-530 Input |
| High | Negative |
| Low | Positive |
| Power | |
| Source | External, 2.5 mm positive tip (Not included, sold separate.) |
| Input Voltage | 12 Vdc (<100 mA) |
| Output Voltage
(transceiver) |
Logic: -0.5V to (VCC+0.5V), maximum |
| Mechanical | |
| Dimensions | 5.4 x 5.6 x 1.6 cm (2.1 x 2.2 x 0.62 in) |
| Meantime Between Failures (MTBF) | |
| MTBF | 1539882 hours |
| Calculation
Method |
MIL 217F using Parts Count Reliability Prediction |
| Environmental | |
| Operating
Temperature |
0 to +70 °C (+32 to +158 °F) |
| Storage
Temperature |
-40 to +85 °C (-40 to +185 °F) |
| Regulatory – Approvals / Standards / Directives | |
| FCC, Part 15 | |
|
CE - Directives |
2014/30/EU – Electromagnetic Compatibility (EMC) 2011/65/EU – Amended by (EU) 2015/863 Reduction of
Hazardous Substances (RoHS) 2012/19/EU – Waste Electrical and Electronic Equipment (WEEE) |
|
CE - Standards |
EN 55032: Class B – Electromagnetic Compatibility of Multimedia Equipment – Emission Requirements
EN 55024 – Information Technology Equipment – Immunity Characteristics – Limits and Methods of Measurement |
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