USR-K5 is a low-cost TTL UART to Ethernet module with tiny size, which can realize the bi-directional transmission between UART and Ethernet. USR-K6 is a new and tiny super port UART TTL to Ethernet module, which can realize the bi-directional transparent transmission between UART and Ethernet. USR-K7 is a super port TTL UART to Ethernet module. People may confused about what's the difference between Embedded serial to ethernet USR-K5, USR-K6 and USR-K7?
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LAN Port TTL Ethernet Module |
USR-K5 |
USR-K6 |
USR-K7 |
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Power |
VCC |
3.0-3.6V |
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Interface |
Ethernet Port |
RJ45 10/100m bps. Do not need network transformer |
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Serial Port（Flow Control） |
TTL*1（CTS/RTS） |
TTL*1 （No Flow Control） |
TTL*1 (CTS/RTS) |
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Data Bit（bit） |
7,8 |
7,8 |
5,6,7,8 |
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Baud rate（bps） |
600-230400bps |
600～460.8K |
600～1M |
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Parameter |
Size (L*W*H)（mm） |
35.0*19.39*18.25 |
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Work Temp |
-40～85C |
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Storage Temp/humidity |
-40～105C/5%～95% RH |
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Protocol |
Network Protocol |
IP V4,TCP,UDP,DHCP,DNS,https,ARP,ICMP, （IP V6 acceptable for USR-K7） |
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Configuration Method |
Network AT command, serial port AT command, Web Page |
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Function |
Transparent Transmission |
TCP Server/TCP client/UDP Server/UDP Client |
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httpsD Client Mode |
/ |
ü |
ü |
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MODBUS RTU to TCP |
/ |
/ |
ü |
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Web-socket |
/ |
/ |
ü |
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User-defined Web-page |
/ |
ü |
ü |
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Similar RFC2217 |
ü |
ü |
ü |
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User-defined registration packet |
ü |
ü |
ü |
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User-defined heartbeat packet |
ü |
ü |
ü |
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User-defined MAC |
/ |
ü |
ü |
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Timeout to restart |
ü |
ü |
ü |
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Wipe cache when connecting |
ü |
ü |
ü |
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Transmission |
Number of TCP client allowed to access |
4 |
8 |
16 |
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Number of connections for TCP Client |
1 |
1 |
2 |
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Software |
Setup software, test program,Virtual COM software, USRIOT Cloud |
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Certificate |
CE/FCC/RoHs |
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