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wireless adapter

Star network serial port adapter

　　Zgb-link-m02 is a low-cost, low-power, low-voltage wireless transceiver product working in 780mhz WPAN band or 2.4GHz ISM band in China. It is developed based on IEEE 802.15.4 protocol, and is mainly used in wireless sensor, monitoring and control, data acquisition and transmission. This adapter supports RS232 and RS485 interfaces for users to choose from. It can be applied to various electronic information products such as household appliances, instruments and industrial control equipment.

　　An adapter can be divided into master and slave. A master adapter can be used to build a network with one or more slave adapters. When the adapter hardware circuit connection is correct, the master-slave device will automatically establish network connection, identify and memorize the other party's information. As a cable replacement scheme, it can be directly connected with computer equipment or microprocessor, and transparently realize wireless data transmission between devices by plug and play.

　　Zgb-link-m02 wireless transmission adapter can complete bidirectional wireless data communication between devices based on RS232 / RS485 bus, realize one-to-one, one host to multiple slaves (star topology), completely replacing the traditional RS232 and RS485 cables. The adapter integrates RS232 interface, RS485 interface and USB interface, which can be switched by configuration command.



产品详情

Product characteristics

780mhz WPAN band and 2.4GHz ISM band L 780mhz without external PA can reach 2km Los communication distance (open area)

2.4GHz can reach 750m Los communication distance without external PA (open area)

Support point-to-point, star network, star hybrid network;

Standard RS485 / RS422 / RS232 / USB interface, USB power supply

It conforms to IEEE 802.15.4 protocol specification and is compatible with IEEE 802.15.4 protocol

Easily replace RS232 / RS485 cable network

Automatic CSMA-CA function, automatic address filtering function, automatic frame retransmission / confirmation function

With network diagnosis function, report fault node address and other information

Support continuous operation mode

Security authentication and data encryption

Automatic reset function of watch dog

Online configuration function：

The parameter configuration interface supports special commands and special PC programs

Baud rate can be set

Wireless transmission power can be set

Wireless working frequency band can be set

Local address can be set

The working mode of the machine can be set

Network ID can be set

Size (mm): 76 (L) X52 (W) X22 (thick)

Network topology diagram


            Point to point and star network topology


       Hybrid star network (this function needs to be explained when ordering)


Detailed specifications

780mhz WPAN band

Test conditions: VCC = 5.0 V, f = 780 MHz, temperature = 25 degrees

Parameter name

Parameter value

Company

Remarks

supply voltage

DC4.2～7

V


Working current: RX mode

31

mA


Working current: TX mode

42

mA


Wireless transmission power

-11～+10

dBm

Users can set up 11 levels

Wireless frequency range

769 ～ 935

MHZ

Set according to different countries

Number of wireless channels

4/10



Channel spacing

2

MHZ


Receiving sensitivity

-110

dbm

 PER = 1%

RF interface impedance

50

Ohms

Single ended unbalanced output

Wireless rate

20～1000

kbps


Serial port rate

1200～115200

bps

User configurable

working temperature

-40～85

℃


Working humidity

1～95

%RH


External size

Metal aluminum box:76×52×22

mm

Length × width × thickness, excluding antenna

2.4GHz ISM band

Test conditions: VCC = 5.0 V, f = 2.45 GHz, temperature = 25 degrees

Parameter name

Parameter value

Company

Remarks

supply voltage

DC4.2～7

V


Working current: RX mode

33

mA


Working current: TX mode

33

mA


Wireless transmission power

-17.2～+3

dBm

Users can set up 11 levels

Wireless frequency range

2.4

GHZ

Set according to different countries

Number of wireless channels

16


It can be adjusted in 16 levels

Channel spacing

5

MHZ


Receiving sensitivity

-101

dbm

 PER = 1%

RF interface impedance

50

Ohms

Single ended unbalanced output

Wireless rate

250～2000

kbps


Serial port rate

1200～115200

bps

User configurable

working temperature

-40～85

℃


Working humidity

1～95

%RH


External size

Metal aluminum box:76×52×22

mm

Length × width × thickness, excluding antenna



ordering information


Equipment name

explain

ZGB-LINK-M02/2.4G

Standard RS232 / RS485 / USB interface, supporting point-to-point / point to multipoint; self networking, self recovery;

ZGB-LINK-M02/780M

Standard RS232 / RS485 / USB interface, supporting point-to-point / point to multipoint; self networking, self recovery;