CTC Union STE211W User manual

User Manual
STE211W
Serial to Ethernet Device Server
[e-mail]

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Version 1.0 September, 2022
2022 CTC Union Technologies Co., LTD.
All trademarks are the property of their respective owners.
Technical information in this document is subject to change without notice.
CTC Union Technologies Co., Ltd.
Far Eastern Vienna Technology Center
(Neihu Technology Park)
8F, No. 60 Zhouzi St.,
Neihu, Taipei 114, Taiwan
T [phone]
F [phone]
E[email protected]
Hwww.ctcu.com

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Table of Contents
INTRODUCTION .......................................................................................................4
OVERVIEW...............................................................................................................5
PACKAGE CHECKLIST ................................................................................................5
PRODUCT SPECIFICATIONS.......................................................................................6
PRODUCT PANEL VIEWS...........................................................................................8
ANTENNA SIDE.......................................................................................................................................8
SERIAL INTERFACE SIDE ............................................................................................................................9
LED INDICATORS .................................................................................................... 10
WIRING ARCHITECTURE ......................................................................................... 11
CONFIGURATION ................................................................................................... 12
IP SEARCH UTILITY SETUP ....................................................................................................................... 12
WEB BROWSER CONFIGURATION.............................................................................................................. 15
SYSTEM SETUP........................................................................................................................................... 15
NETWORK SETUP ....................................................................................................................................... 17
SERIAL PORT SETUP .................................................................................................................................... 22
OVER TCP/IP SETUP................................................................................................................................... 23
RESET PUSH BUTTON............................................................................................. 25

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Introduction
STE211W Serial to Ethernet+WiFi Interface Converter provides the ways of
connecting serial devices to both Ethernet and Wireless LAN (Wi-Fi 802.11 b/g/n ). It
is designed to operate serial ports through Ethernet (10/100Mbps) and wireless (Wi-
Fi 802.11 b/g/n) over TCP/IP network. When the data is transmitted via TCP/IP
protocol, data acquisition and controlling is available to go through Intranet and
Internet. There are two serial ports as one is a RS-232 and the other is RS-422/485.
Configuration is easy to operate via web page setup.
STE211W Serial to Ethernet+WiFi Converter is a high performance design
consisting of carefully selected and qualified components from reliable and certified
sources. This operation manual will guide you to configure functions step by step.
The following topics are covered in this chapter:
Overview
Package Checklist
Product Features
Hardware Specifications
Web Browser Configurations

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Overview
STE211W (hereunder called “This Device”) Serial to Ethernet+WiFi Converter
provides a perfect solution to make your industrial Serial devices connect to Internet
instantly via Wireless and Ethernet LAN. This device embedded with the powerful
chipset is the ideal device for transmitting the data from your RS-232 or RS-422/485
Serial interface devices, such as PLCs, Meters or Sensors to an IP-based Ethernet and
Wi-Fi host, and making it possible for your software to access Serial interface devices
anywhere and anytime.
STE211W supports TCP Server Mode, TCP Client Mode, and UDP Mode for
selection. It also provides manual configuration via web browser and offers various
protocols including HTTP, DHCP, ICMP, and ARP. These are the best solution to
coordinate your Serial interface devices.
Package Checklist
1 unit of STE211W device
1 unit of Power Adaptor (12V DC, 1A)
1 unit of dipole antenna(2.0dBi)
NOTE: Inform your sales representative if any one of the above items is missing
or damaged.

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Product Specifications
System
CPU: MT7688AN MIPS CPU, 580 MHz
RAM: 128M Bytes DDR2 RAM
ROM: 32M Bytes Flash ROM
OS: OpenWrt Linux OS
Ethernet
Port Type: RJ-45 Connector
Speed: 10 /100 M bps (Auto Detecting)
Protocol: ARP, IP, ICMP, UDP, TCP, HTTP, DHCP
Protocol: NTP, DNS
Mode: TCP Server / TCP Client / UDP
Setup: HTTP Browser Setup (IE, Chrome, Firefox)
Security: Setup Password
Protection: Built-in 1.5KV Magnetic Isolation
WiFi
Standard: IEEE 802.11b/g/n
Data Rate: 11/54/72.2 Mbps @ 20Mhz Band Width
Modulation: DSSS; OFDM
Frequency: 2.4GHz
Tx Power 11b: Max. 22dBm
Tx Power 11g/n: Max. 19dBm
Rx Sensitivity: -76dBm @ 54Mbps; -89.5dBm @ 11Mbps
Tx Rate: Max. 54Mbps with auto fallback
Tx Distance: Up to 100m
Security: WEP 64-bit / 128-bit data encryption, WPA / WPA2 personal
Antenna: 2 dBi ; RP-SMA connector
Network Mode: Infrastructure; Soft AP (for Setup)
Mode: TCP Server / TCP Client / UDP / Virtual Com / Pairing
Setup: HTTP Browser Setup (IE, Chrome, Firefox)
Security: Login Password

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Serial Ports *2
Port: RS-232 *1 (RS-232 with RX/TX only)
Port: RS-422 / 485 *1 (Surge Protection)
Speed: 300 bps ~921.6 K bps
Parity: None, Odd, Even, Mark, Space
Data Bit: 5, 6, 7, 8
Stop Bit: 1, 2
RS-232 Pins: Rx, Tx, GND
RS-422: Rx+, Rx-, Tx+, Tx- (Surge Protection)
RS-485: Data+, Data- (Surge Protection)
15KV ESD for all signals
Power
DC 9~32 V, 1000mA@12V
Support DC Jack & Terminal Block Input
PoE: Power over Ethernet 802.3af
Power Consumption: 2W
Mechanical and Environment
Operating Temperature: -20°C ~70°C
Storage Temperature: -25°C ~80°C
Dimensions: 110mm (W) * 90mm (D) * 26 mm (H)
Weight : 110 ± 5gm
Housing: plastic
Other Features
LED Indicators: SYS, WiFi, RX, TX, LAN
RTC: Real Time Clock
Watch Dog Function
MTBF (MIL-HDBK-217)
60,000 Hours

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DC-IN Power Outlet
(DC Jack)
Antenna
DC-IN Power Outlet
(Terminal Block)
Reset Button
(beneath the
antenna)
Ethernet
LAN port
Product Panel Views
Antenna Side
Antenna Connector
The connector for antenna is a standard reverse SMA jack. Simply connect it to a
2.0dBi dipole antenna (Standard Rubber Duck). It is 50 Ohms impedance and can
support 2.4GHz frequency.
Ethernet Port
The connector for network is the usual RJ45. Simply connect it to your network
switch or Hub. When the connection is made, the green color LED of Ethernet port will
blink. When data traffic (Rx/Tx) occurs on the network, yellow color LED will blink
during data transferring.
DC-IN Power Outlet
The Device is powered by a 12V DC (Inner positive, outer negative), 1.0A power
supply. Plugging the power adaptor to the AC power socket and put the DC Jack plug
into the outlet of the Device. The “SYS” green color LED will be ON when power is
properly supplied. Terminal Block 2 wires power supply is an option.

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Reset Button
(1) Press reset key after 5 seconds until SYS LED flash then release the key will reset
network default IP and gateway IP back to default. The other parameters keep
same as last confirmation.
(2) Press reset key after 5 seconds until both SYS LED and WiFi LED flash then release
the key will make all parameters back to factory default.
(3) Press reset key within 5 seconds without LED flash will reboot the equipment.
Last configuration no change.
Serial Interface Side
Serial Port of RS-232/RS-422/RS-485
Connect the Serial data cable between the device and the Serial interface device.
Follow the procedure of web page configuration to set up parameters.
RS-422/485
RS-232

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LED Indicators
SYS (Green):
Power indicator. When the power is on, the LED will be on and blink per second.
WiFi (Red):
WiFi indicator. When the WiFi is working, this LED will be blinking.
Tx (Green):
Data sending indicator. When data sends to the device from LAN, this LED will
blink.
Rx (Red):
Data received indicator. When data sends to the device from Serial ports, this
LED will blink.

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Wiring Architecture
1. RS-232
2. RS-422/RS-485
When you complete the steps mentioned above, the LED indicators will be lit. This
means that the converter is connected and installed correctly. To proceed with the
parameters setup, please use a web browser (IE or Chrome) to configure the detailed
settings.

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Configuration
When setting up your converter for the first time, the first thing you should do is
to configure the IP address. You can use IP Device Search tool to find the IP or simply
use the default IP to login to the device.
The following topics are covered in this chapter:
IP Search Utility Setup
Web Browser Configuration
IP Search Utility Setup
1. Copy “Device Search Setup”to your host computer.
2. “Device Search” is a self-extract-install program. Double click it to install
this Wi-Fi IP Searching tool into host computer.
3. “Device Search” will pop up on the screen after installation or you may double
click the icon on desk top of host computer to open this tool.

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4. Click on “Find” button. It will scan the network and show up the IP of Gateway.
5. Click “Goto” button will open a web page of configuration. (Default Username:
admin; Default Password: admin).

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6. You can also use the default IP address (10.1.1.1) of this device to login to the
configuration webpage with the default Username: admin and Password: admin.
Note: The default Ethernet IP address is 10.1.1.1/24; while, the default WiFi IP
address is 10.0.0.1/24.
7. When you successfully login to the device, the following main screen will pop up.

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Web Browser Configuration
There are 4 setup pages as “System”, “Network”, “Serial” and “Over TCP/IP”.
System Setup
1. System: where you can change Password, set up Auto Reset time and modify
Device Name, Description of device.
2. Appearance of Wireless and Ethernet setup. Please note that the default WiFi IP
address is 10.0.0.1/24 and the default Ethernet IP address is 10.1.1.1/24.

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3. HTTP & NTP: Enable / Disable HTTP or NTP function; Set up NTP server and Time
Zone.
4. Firmware update: If necessary, click “Browse” to open file manager.
Then, select the file with specified version and click “open” button.
When the selected file name appears on the input column, click “Update” button.

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5. Up to now, Setup is successfully configured. Please click “Save” and go to other
pages for configuration or click “Save and Restart” to run new configuration.
Network Setup

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1. Wireless section:
1.1 Type: Click to select “Access Point” or “Infrastructure”. “Infrastructure” is for
connecting to a local Router.
1.2 If “ACCESS POINT” is selected, input password (1234567890) for the AP and assign
IP address with “DHCP” or “STATIC”.

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1.3 When “ACCESS POINT” is selected, this Device acts as an Access Point which is
allowed to be connected by PC /NB /Smart Phone/ PAD. It supports DHCP server
function. Soft AP broadcasts its SSID “STE_2.4G”. PC /NB /Smart Phone/PAD
should connect to this SSID and then able to open web browser with default IP of
this Device.
1.4 Password: Key in password for the selected AP.

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1.5 Encrypt
1.5Mode: select “DHCP” to let AP assign IP address to itself,
or select “STATIC” to input assigned IP address, Subnet Mask manually.