1 Port Serial Ethernet Device Server - Power
Over Ethernet
NETRS2321POE
NETRS23POEGB
*actual product may vary from photos
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
For the most up-to-date information, please visit: www.startech.com
Manual Revision: 12/06/2019
FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by
turning the equipment o and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit dierent from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other
protected names and/or symbols of third-party companies not related in any way to
StarTech.com. Where they occur these references are for illustrative purposes only and do not
represent an endorsement of a product or service by StarTech.com, or an endorsement of the
product(s) to which this manual applies by the third-party company in question. Regardless
of any direct acknowledgement elsewhere in the body of this document, StarTech.com hereby
acknowledges that all trademarks, registered trademarks, service marks, and other protected
names and/or symbols contained in this manual and related documents are the property of
their respective holders.
Instruction Manual
Table of Contents
Introduction ............................................................................................1
Package contents ...................................................................................................................................... 1
Front Panel ...................................................................................................................................................1
Rear Panel .................................................................................................................................................... 2
LED Indicators............................................................................................................................................. 2
Hardware Installation ............................................................................3
Conguring the Adapter .......................................................................3
Setting the IP Address ............................................................................................................................. 3
Managing the Adapter Settings .......................................................................................................... 5
Controller Setup Menu Items ............................................................................................................... 6
Software Installation .............................................................................8
VSP Virtual COM Port Driver ..................................................................................................................8
Installing the VSP Virtual COM Port Driver ....................................................................................... 8
Specications ..........................................................................................11
Technical Support ..................................................................................12
Warranty Information ............................................................................12
Instruction Manual
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Introduction
Package contents
• Industrial Switch
• Instruction Manual
• Power Adapter
Front Panel
1 2 3 4
1. Switch to Restore Default Settings - This switch can be used to reset the product to
its factory default settings. Pressing the switch using either a pen or similar tool will
immediately restore the unit to its default settings.
2. RJ45 LAN Connector - 10/100Mbps Ethernet port. It supports the auto cross-over
feature, and allows use of the same cable to connect to either a Hub/Switch or a
host computer.
3. Heartbeat LED
4. +7~12VDC Power Input DC Jack
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Rear Panel
1
1. RS-232 Connector
LED Indicators
1 2 3
1. 10/100 Mbps LED (amber colour)
2. Link / Activity LED (green colour)
3. Heartbeat LED (green colour)
LED Name Colour Function
10/100 Mbps Green On: 100 Mbps O: 10 Mbps
Link/Activity Green On: Linked Blinking: Transfering Data
Heartbeat Amber Blinking: Normal Operation Not Blinking: Malfunction
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Hardware Installation
1. Use static electricity discharge precautions. Remove possible static discharge
potential from any objects that the adapter may come in contact with prior to
installation. This can be accomplished by touching a bare metal chassis rail after you
have turned o the power.
2. If you will be externally powering the device, connect the DC power adapter. If
connecting to a PoE switch, hun, or other device, then a power adapter is not
required, as the product will draw its power from the host device it is connected
to. In this case, ensure that your switching hub is the PoE type that can act as PSE
(Power Source Equipment).
3. Connecting LAN cable: Use a standard straight-through Ethernet cable to connect
to a Hub or Switch. If you connect the adapter to your computer’s Ethernet port
instead, you don’t need to change to a cross-over type cable since the adapter
provides the auto cross-over feature.
4. Connect the Adapter’s serial port to your serial device.
5. Use the DIN RAIL mounting Kit if you want to place the product on the industrial
DIN RAIL. (optional)
Conguring the Adapter
Setting the IP Address
Please consult your Network Administrator to determine the appropriate IP address.
The adapter comes with the factory installed IP address 192.168.1.254. It is ready to
accept a new IP address from a DHCP Server. If your network has a DHCP server, it will
automatically assign an IP address to the Adapter the rst time it is connected and
powered up.
1. Setting the IP Address from a DHCP Server
A DHCP server will automatically assign an IP address (dynamic address) as well as
Subnet Mask and Gateway to this adapter. If you power up the Adapter without a xed
(static) IP address, the DHCP server will be able to assign an IP address (Note: By default,
DHCP is disabled. If you wish to support DHCP, Enable it in the Adapter Setup Menu).
Note: If you will set the IP address using another method, you will need to use a static IP
address. To do this, Disable DHCP (this is the default setting) in the Adapter Setup Menu.
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2. Setting the IP Address using a Web Browser
Please ensure that your PC’s IP address is set to the same subnet as the adapter. If not,
you will need to change your PC’s IP address from Local Area Connection Properties
menu, shown below:
Run your browser and access the product by entering the default (192.168.1.254) or
current IP address into your browser’s address window. Enter the password (default has
no password), then go to Change your IP Address, and make the necessary changes.
3. Setting the IP Address using the Etm.exe Utility
The Etm.exe is a Microsoft Windows based utility used to identify the adapters
connected on the same subnet and network segment.
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Managing the Adapter Settings
When you enter the Adapter Setup Menu, the following page will be available for
your access. By default there is no password for entry.
Once you have entered the Controller Setup Menu and made the necessary changes,
click the Update button. Also ensure that you make note of your password as you will
need it to enter the setup menu again.
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Controller Setup Menu Items
Menu Item Description
IP Address 4 numbers separated by dots. If enabled,
Subnet Mask 4 numbers separated by dots. If enabled,
Gateway Address 4 numbers separated by dots. If enabled,
DHCP Client If disabled, the IP address, Subnet mask and
Socket Port of HTTP
Setup
these can be assigned by the DHCP server.
these can be assigned by the DHCP server.
these can be assigned by the DHCP server.
Gateway address must be assigned manually.
If disabled, the IP address, Subnet mask and
Gateway address must be assigned manually.
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Menu Item Description
Socket Port of Serial
I/O
Port Number:
Any number between 1 and 65536,except 80
and 8080 (these have been designated as the
web pages).
Socket Type:
TCP Server - Uses TCP protocol, passively
waits for Client.
TCP Client - Uses TCP protocol, actively
connects to Server.
UDP Client - Uses UDP protocol, exchanges
packets with Server without connection.
Socket Port of Digital
I/O
Destination IP
Address/Socket Port
Spared function for the future expansion.
Currently has no function.
The Server IP address under TCP client or UDP
client mode.
(TCP client and UDP)
Serial I/O Settings
(baud rate, parity, data
bits, stop bits)
Baud Rate: 300 – 115200 bps
Parity Bits: No Parity, Even, Odd
Data Bits: 5, 6, 7, 8
Stop Bit: 1 or 2
Interface of serial I/O RS-232
Packet mode of serial
input
If packet mode is disabled, the data received
from the serial port will be transmitted
immediately with minimal delay. If packet
mode is enabled, the data will be saved in the
buer memory rst, and transmitted when
the entire packet is received or when the
buer memory is full.
Packet mode interpacket timeout
In packet mode, the time constant used
to determine if the packet is nished.
Acceptable range is 10 to 1000 ms.
Device ID User assigned device ID number. Acceptable
range is 0 to 65535.
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Menu Item Description
Report device ID when
connected
Setup password The login password can be empty or 1 to 15
If this function is enabled, the device will
report the device ID after the socket is
connected. The format is:
Serial I/O socket nnnnnA[LF][CR]
Digital I/O socket nnnnnB[LF][CR]
There are eight bytes: nnnnn is the 5-digit
device ID, [LF] is decimal 10, and [CR] is
decimal 13
characters long. If the password is empty then
no password is required for login.
Software Installation
You can download the latest Drivers from the StarTech.com website:
www.startech.com/NETRS2321POE.
Navigate to the Support Page to locate the Drivers in a .Zip le.
VSP Virtual COM Port Driver
The VSP is a redirector driver that allows your applications to use serial devices
provided by serial device servers on your network. This redirection is achieved by
creating one or more virtual COM port(s) that allow these networked serial devices to
function as though they are directly connected to the local computer.
Since the redirector’s virtual COM port(s) function much like standard Windows COM
ports, your application software sees no dierence between a local serial device and
one provided by a serial server.
Installing the VSP Virtual COM Port Driver
The VserPortConsole.exe is the redirector software. The Etm.exe is used to setup the
hardware mode to support VSP redirector.
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Congure your hardware mode to support VSP.
• Open the Drivers .Zip folder, click the IP-Search-Utility folder and run the Etm.exe
application to nd the device hardware
• Enter the setup menu by double clicking the listed hardware.
• Click Login (by default settings, there is no password).
• Change the settings to COM Port, save the changes, and exit the setup menu.
Run the VSP Setup Program
• Open the Drivers .Zip folder, open the Virtual-Com folder and select your operating
system.
• Double click the VserPortConsole.exe application. You may receive a message
indicating that this driver has not yet passed Windows logo testing. If so, click
Continue Anyway.
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• Select the COM ports to be redirected by checking the boxes next to them:
• Set the COM Port settings: The following gure shows only one COM port setting
being changed. You may have 4 COM ports (or 1, 2 ports depending on the model),
you will need to set it 4 times for, once for each COM port.
• Checking installation: Go to the Device Manager (right click My Computer,
Hardware, Device Manager) to check the installation, a successful settings will look
something like the following gure:
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Specications
Specication NETRS2321POE
Connector RJ45
Speed 10/100 Mbps
RS-232
Number of Ports 1 x RS-232
Signals TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND
Connector DB9 Male (RS-232)
Parity None, Odd, Even
Data Bits 6, 7, 8
Stop Bits 1, 2
Speed 300 to 115.2Kbps
Power Requirements
Power Input
Power Consumption 110mA @ 12V DC
Mechanical Specications
Material Metal
Gross Weight 250.5g (0.55 lb)
Operating Temperature 0° to 55°C (32° to 131°F)
Storage Temperature -20° to 85°C (-4° to 185°F)
Operating Humidity 5% to 95% RH
48V DC (via Ethernet Cable, PoE model only)
Environmental
12V DC (via DC Jack), or
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Technical Support
StarTech.com’s lifetime technical support is an integral part of our commitment to
provide industry-leading solutions. If you ever need help with your product, visit
www.startech.com/support and access our comprehensive selection of online tools,
documentation, and downloads.
For the latest drivers/software, please visit www.startech.com/downloads
Warranty Information
This product is backed by a two year warranty.
In addition, StarTech.com warrants its products against defects in materials
and workmanship for the periods noted, following the initial date of purchase.
During this period, the products may be returned for repair, or replacement with
equivalent products at our discretion. The warranty covers parts and labor costs only.
StarTech.com does not warrant its products from defects or damages arising from
misuse, abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their
ocers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of prots, loss of business,
or any pecuniary loss, arising out of or related to the use of the product exceed the
actual price paid for the product. Some states do not allow the exclusion or limitation
of incidental or consequential damages. If such laws apply, the limitations or exclusions
contained in this statement may not apply to you.
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