Multifunctional serial to Ethernet module user manual
www.tcp232.net
Jinan USR IOT Technology Co., Ltd
Page19
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9
Power supply socket, outer diameter 5.5 mm inner 2.1 mm standard size, inside plus, outside
minus. The input voltage range 5 ~ 48 V, current 150 MA. We default supply high quality 5 V / 1
A power adapter.
Power supply socket, the terminal and pin 9 of the com, mutual unicom, can choose one
power supply in, and another power supply out, better adapt to the use environment.
3.3.3.
3.3.3.
3.3.3.
3.3.3. LED
LED
LED
LED status
status
status
status
Equipment have 4 indicator lights in total, sequence from left to right.
ID
Name
Description
1
Power(red)
Bright after power on
2
Work(green)
Flash at work
3
Link(green)
In RJ45 port, bright after network connection
4
Data(yellow)
In RJ45 port, flash if there are datas on network
Diagram 3-8 LED definition
3.3.4.
3.3.4.
3.3.4.
3.3.4.
RS232
RS232
RS232
RS232 interface
interface
interface
interface
It have 2 * RS232 interface. The serial port is male (needl), RS232 level (can be directly
connected to computer serial), part of RS232 pin sequences consistent to computer COM port.
When connected with the computer, we need to use cross cable (2-3 cross, 7-8 cross, 5-5 direct,
7-8 can don’t connect, but musn’t direcly connect to computer. Otherwise, it might lead to
irregularly work).
The DB9 interface contains the RS232, RS485 and RS422 interfaces.
Number
name
Description
2
RXD
RS232 device receive data pin
3
TXD
RS232 device transmit data pin
5
GND
Signal ground
7
RTS
RS232 require to send
8
CTS
RS232 clear to send
9
VCC
Default not used. there is one pad jumper, default
disconnect, when connect, it can power supply outside
serial device.
Diagram 3-9 DB9 interface
Note: none
