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USR-K2 Hardware Manual

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Jinan USR IOT Technology Limited

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LED_DATA-

Ethernet interface LED_DATA- pin

LED_3V3

Power supply pin for Ethernet interface LED

LED_3V3

Power supply pin for Ethernet interface LED

LED_LINK-

Ethernet interface LED_LINK- pin

Figure 2 Pin definition

1.3. Ethernet interface LED

LED

Function

Description

Green

Indicating connection status

Green LED will light after module connecting to network

Yellow

Indicating data transmission

Yellow LED will blink when module has data transmission

Figure 3 Ethernet interface LED

Summary of Contents for USR-K2

Page 1: ...USR K2 Hardware Manual www usriot com Jinan USR IOT Technology Limited 1 9 h usriot com USR K2 Hardware Manual File version 1 3 01 ...

Page 2: ... 2 9 h usriot com Content USR K2 Hardware Manual 1 1 Product Overview 3 1 1 Dimension 3 1 2 Pin Definition 4 1 3 Ethernet interface LED 5 2 Hardware Design 6 2 1 Typical Connection 6 2 2 Power Interface 6 2 3 UART Interface 7 3 Contact 9 4 Disclaimer 9 5 Update History 9 ...

Page 3: ...2 Hardware Manual www usriot com Jinan USR IOT Technology Limited 3 9 h usriot com 1 Product Overview 1 1 Dimension Module size 33 03 19 01 19 15 mm error 0 2mm pin size as follow Figure 1 Dimension diagram ...

Page 4: ...gh level to enable transmitting 6 Reload CFG I After module powering off pulling down Reload pin to 0V then powering up keeping Reload pin 0V over five seconds and pull up Reload pin 3 3V module will restore default settings Reload pin connects to internal 10K Ohm pull up resistor 7 LED_DATA O Ethernet interface LED_DATA pin 8 RXD I Serial port receiving pin 3 3V TTL level which needs to connect t...

Page 5: ...15 LED_3V3 P Power supply pin for Ethernet interface LED 16 LED_LINK I Ethernet interface LED_LINK pin Figure 2 Pin definition 1 3 Ethernet interface LED LED Function Description Green Indicating connection status Green LED will light after module connecting to network Yellow Indicating data transmission Yellow LED will blink when module has data transmission Figure 3 Ethernet interface LED ...

Page 6: ... works in TCP Client mode module will connect to TCP Server After enabling Reset function module will reset if TCP connection can t be established after trying 30 times 5 Reload After module powering off pulling down Reload pin to 0V then powering up keeping Reload pin 0V over five seconds and pull up Reload pin 3 3V module will restore default settings Reload pin connects to internal 10K Ohm pull...

Page 7: ...232 chip and transfer to the RS 232 level UART interface includes TXD RXD Taking the RS 232 level as a reference circuit diagram as follow Figure 6 RS232 level UART interface When communicating to MCU with 3 3V just connecting TXD of module to RXD of MCU and RXD of module to TXD of MCU When communicating to MCU with 5V switching circuit is necessary Switching circuit diagram as follow ...

Page 8: ...USR K2 Hardware Manual www usriot com Jinan USR IOT Technology Limited 8 9 h usriot com Figure 7 Switching circuit ...

Page 9: ...roducts it hasn t been granted any intellectual property license by forbidding speak or other ways either explicitly or implicitly Except the duty declared in sales terms and conditions we don t take any other responsibilities We don t warrant the products sales and use explicitly or implicitly including particular purpose merchant ability and marketability the tort liability of any other patent r...

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