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one external antenna port uhf transceiver module
General Description
CF-MU902 is a high performance UHF RFID Reader Module. It is designed upon fully self-intellectual property. Based on proprietary efficient digital signal processing algorithm, it supports fast tag read/write operation with high identification rate. It can be widely applied in many RFID application systems such as logistics, access control, attendance system, anti-counterfeit and industrial production process control system.
FEATURES
- Self-intellectual property;
- Support ISO18000-6C(EPC C1G2) protocol tag;
- 865~868MHz, 902~928MHz frequency band(frequency customization optional);
- FHSS or Fix Frequency transmission;
- RF output power up to 30dbm (adjustable with 1db step);
- Effective distance 9m with 6dBiL antenna and E41 tag;
- Support one external antennae with MMCX-J socket;
- Low power dissipation with single +3.4V~ +5V DC power supply;
- Support 2 GPIO port with 2outputs;
- Support RS232(TTL level) interface and USB 2.0 interface.
No. |
Symbol |
Comment |
1,2 |
VCC |
+3.4V~+5VDC |
3,4 |
GND |
GND |
5 |
EN |
Enable PIN. High level effective with internal 1Mohm resistor pulled up to VCC |
6 |
nRST |
Low level effective external reset input with internal pull-up to 3.3V. |
7,8 |
- |
Reserved |
9 |
USB-DM |
USB Data Minus |
10 |
USB-DP |
USB Data Positive |
11,12 |
GPO2,GPO1 |
General Output |
13 |
GPI1 |
General Input |
14 |
TXD |
Serial Data Output |
15 |
RXD |
Serial Data Input |
CHARACTERISTICS
l Absolute Maximum Rating
ITEM |
SYMBOL |
VALUE |
UNIT |
Power Supply |
VCC |
6 |
V |
Operating Temp. |
TOPR |
-20~+55 |
℃ |
Storage Temp. |
TSTR |
-25~+75 |
℃ |
l Electrical and Mechanical Specification
Under TA=25℃,VCC=+5V unless specified
ITEM |
SYMBOL |
MIN |
TYP |
MAX |
UNIT |
Power Supply |
VCC |
4.75 |
5.0 |
5.25 |
V |
Current Dissipation |
IC |
|
|
1500 |
mA |
Frequency |
FREQ |
865 |
|
928 |
MHz |
|
Size (including shielding and heat sinking) |
L x W x H |
|
60.5 x 42x 9.5
|
|
mm |
Application Information
1.When designing fixed reader with CF-MU940, please take care of heat sinking and remember to make sure the heat sinker of the module is closely and stably attached to the reader’s bottom plate;
2.ANT1 is the default antenna port. Please pay attention to antenna port’s definition.
3.Please refer to CF-MU940 user’s manual for detailed protocol description.
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