Dorji DAC02 Посібник з експлуатації - Сторінка 2

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below shows the difference among modules.

SET-A/EN

Table 2

For DRF1212 modules, the 3

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.

For DRF4432 modules, the 3

The 7

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.

As to DRF7020D/7020M series, the 3

high. The 7

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:

[email protected]

Web:

http://www.rfmodule.me

Revision 1.10

SET-B/SET

LO/HI

DRF1212D10

DRF4432D20

DRF7020D series, DRF7020M series

Level Controls in Normal Communication Mode

pin is SET-A and the 7

pin is Enable pin and in normal work mode it must be set to low.

pin is Enable pin and in normal mode it must be set to

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,

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.

Page of 2

Module Type

pin is SET-B. In normal communication

devices

other

products

DAC02

where

Aug. 2010