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USR-N540
USR IOT USR-N540 User Manual
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USR-
N5
4
0
User Manual
w
ww
.usr
iot
.com
Jinan USR IOT T
echnology Limited
11
/
73
inquiry@usriot.com
For R
S232 p
ort, dial sw
itch ar
e down, such as t
he below
pictur
e.
For R
S485 p
ort, dial sw
itch ar
e up, such as the
below pict
ur
e.
For R
S422 p
ort, dial sw
itch
on the le
ft ar
e up, dial sw
itc
h on the l
ight ar
e dow
n,
10
12
Table of Contents
Default Chapter
2
Table of Contents
2
1 Quick Start
4
Hardware Testing Environment
4
Network Test Environment
4
Default Parameter
5
Data Transmission Test
6
2 Overview
7
Brief Introduction
7
Features
7
Basic Parameter
8
Dimension
9
Indicators and Dial Switch
10
Indicator Light
10
Dial Switch
10
DB9 Pin Definition
12
DB9 Pin-Board
12
3 Product Function
13
Socket a Communication
14
TCP Client Mode
14
TCP Server Mode
17
UDP Client Mode
18
UDP Server Mode
21
TCP and UDP Comparison
24
HTTPD Client
24
Socket B Communication
26
Short Link
28
USR-VCOM Application
28
Modbus Gateway
30
Transmit Modbus Protocol in Transparent Mode
30
Modbus RTU to Modbus TCP
30
Modbus Active Query Function
31
Modbus Polling
34
USR-Cloud Function
39
Value-Added Functions
40
Dhcp
40
Dns
40
Heartbeat Packet Function
40
Registration Package Packet Function
42
Web to Serial
44
Customized Webpage
46
Network Printing Function
47
Serial Port Packaging Mechanism
49
Flow Calculation
49
Synchronous Baud Rate (RFC2217)
50
Keep-Alive
51
Device ID
51
Webpage Port
52
Revise MAC
52
Firmware Upgrade
52
Flow Control RTS/CTS & Xon/Xoff
52
Reload
52
4 Setting Protocol
53
Network Setting Protocol
53
Set Parameter Process
53
Setting Command Content
53
Commands' Return Content
56
Serial Setting Protocol
58
Error Code
58
AT Command
58
Enter at Command Mode
60
5 Parameter Configuration
60
Software Configuration
60
Webpage Configuration
66
Serial Configuration
72
7 Disclaimer
72
8 Update History
73
4
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USR IOT USR-N540 Specifications
General
Brand
USR IOT
Model
USR-N540
Category
Server
Language
English
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