Usr USR-TCP232-T, Руководство пользователя

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RS232 Serial TTL UART TO Ethernet TCPIP convert Module www.usr.cn
Jinan USR Technology Co., Ltd.
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3.
3.
3. 3. Hardware
Hardware
Hardware Hardware Description
Description
Description Description
3.1 3.1 3.1 3.1 LED LED LED LED status status status status
There is two leds in RJ45 connector, one is green, and the other is yellow.
LED name description
green Link state Light when 100Mbps network linked
yellow Data transfer Blink when there is data in or out
3.2
3.2 3.2
3.2 Pin
Pin Pin
Pin description
description description
description
pin name description
VDD Power 1 4.5~5.5V
VCC Power 2 3.3V
GND GND Power and Communications Ground
RST Reset pin 200ms GND reset the module
TXD UART transmission pin 5v tolerance
RXD UART receive pin 5v tolerance
CFG Configure pin
Configure mode when this pin GND, normal mode
when VCC or idle
3.3
3.3 3.3
3.3 Connection
Connection Connection
Connection Diagram
Diagram Diagram
Diagram
U S R -T C P 2 3 2 -T
R S 2 3 2 to Ethernet
1
2
3
6
M C U
5 1
5 1
5 1 5 1 ,,,,A V R
A V R
A V R A V R ,,,,P I C
P I C
P I C P I C ,,,,A R M
A R M
A R M A R M
VC C
VC C
G N D
G N D
G N D G N D
R X D
R X D
R X D R X D
T X D T X D T X D T X D
G N D
G N D
G N D G N D
T X D
T X D
T X D T X D
R X D R X D R X D R X D
T x T x T x T x + + + +
T x T x T x T x ----
R x R x R x R x + + + +
R x R x R x R x ----