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DAC02 데이터시트(PDF) 2 Page - Dorji Industrial Group Co.,Ltd |
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DAC02 데이터시트(HTML) 2 Page - Dorji Industrial Group Co.,Ltd |
2 / 2 page DAC02 Revision 1.11 Page of 2 Jan. 2011 2 below shows the difference among modules. SET-A/EN SET-B/SET Module Type LO LO/HI DRF1212D10 LO HI DRF4432D20 HI HI DRF7020D series, DRF7020M series Table 2 Level Controls in Normal Communication Mode 1) For DRF1212 modules, the 3 rd pin is SET-A and the 7th pin is SET-B. In normal communication mode, the SET-A must be low and SET-B can be low/high (Normal mode/Wake-up mode). The USB converter board uses IC CP2102 from Silicon labs and its RTS pin is corresponding to SET-A pin of DRF1212 module. In order to test communication between modules successfully, users should choose serial port software which provides RTS option and keep RTS selected so that the SET-A pin is pull down and the DRF1212 modules will work in wake-up mode. 2) For DRF4432 modules, the 3 rd pin is Enable pin and in normal work mode it must be set to low. The 7 th pin is Data/field strength indication pin. When it is sent to high, the module outputs normal data or else it outputs field strength value. For the same reason, DRF4432 modules must be tested by serial port software with RTS option. 3) As to DRF7020D/7020M series, the 3 rd pin is Enable pin and in normal mode it must be set to high. The 7 th pin is SET pin and it is set to low when modules need to be configured. These series of modules can work correctly when tested under common serial port software. Dorji Applied Technologies A division of Dorji Industrial Group Co., Ltd Add.: Xinchenhuayuan 2, Dalangnanlu, Longhua, Baoan district, Shenzhen, China 518109 Tel: 0086-755-28156122 Fax.: 0086-755-28156133 Email: sales@dorji.com Web: http://www.dorji.com Dorji Industrial Group Co., Ltd reserves the right to make corrections, modifications, improvements and other changes to its products and services at any time and to discontinue any product or service without notice. Customers are expected to visit websites for getting newest product information before placing orders. These products are not designed for use in life support appliances, devices or other products where malfunction of these products might result in personal injury. Customers using these products in such applications do so at their own risk and agree to fully indemnify Dorji Industrial Group for any damages resulting from improper use. |
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