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Low Consumption Current Type (4μA in sleep mode)Five years of life with CR2477 (1.000mAh of nominal capacity)
Wireless Network Module
WML-C41
Announced on February 18, 2008
WML-C41
Overview
We have developed this wireless module that can be used in the star connection wireless communication network, assuming that the module will be used in such applications as sensor network, asset tracking and electric inventory tags for retailers.
The imbedded firmware is specially designed for these applications to minimize the size of ROM and RAM and to cut the cost. Also with the inventive use of MAC layer as well as the use of original communication protocol, the power consumption has been contained. In addition, RF system-on-chip IC in this module is the in-house product, which makes it possible to provide you with small and low price wireless module.
§ Features
1.
Frequency band : 2.404 to 2.484 GHz
(Permission to use the frequency is not required.)
2.
Low power consumption 12μW (in sleep mode),
60mW (peak in transmit and receive mode)
3.
Can support more than 260 thousand devices.
4.
Can support "Place-and-Play" function to allow the network to automatically recognize the device(s).
5.
Can alleviate the network communication failure with the integrated original protocol.

§ Main specifications
<Electrical characteristics>
Frequency band
2.404 ~ 2.484GHz
Number of channels
19 ch
Consumption current
Rx/Tx Peak 20mA Sleep 4μA
CPU
8-bits
Memory
ROM (48KB) / RAM (10KB) External E2 PROM (optional)
Battery life
5years (under our standard test conditions)
<Functions >
1.
Can support more than 260 thousand devices.
2.
Can communicate with 14,400 devices per one hour.
3.
Can automatically recognize the device(s) ("Place-and-Play" function).
4.
Universal I/O port