NETRS2321POE
Instruction Manual
Ethernet Device Server
1-Port Industrial RS-232
Ethernet Device Server - Power
over Ethernet
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Table of Contents
Hardware Guide............................................................... 2
Package Contents .......................................................................2
Front Panel ..................................................................................2
Rear Panel...................................................................................3
LED Indicators.............................................................................3
Hardware installation...................................................... 4
Configuring the Adapter................................................. 4
Setting the IP Address.................................................................4
Setting the IP Address from a DHCP Server...........................5
Setting the IP Address using a Web Browser..........................5
Setting the IP Address using the Em.exe Utility ......................6
Managing the Adapter Settings...................................................6
Controller Setup Menu Items.......................................................7
Software Installation....................................................... 9
VSP Virtual COM Port Driver.......................................................9
Installing the VSP Virtual COM Port Driver..................................10
Specifications.................................................................. 13
Technical Support........................................................... 15
Warranty Information...................................................... 15
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Hardware Guide
Package Contents
• 1 x Driver CD
• 1 x Industrial Switch
• 1 x Instruction Manual
• 1 x 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
2
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Rear Panel
1
1. RS-232 Connector
LED Indicators
1
2
3
1. 10/100 Mbps LED (amber color)
2. Link/Activity LED (green color)
3. Heartbeat LED (green color)
LED Name
Colour Function
10/100 Mbps Green
On: 100Mbps. Off: 10Mbps.
Link/Activity Green
On: Linked. Blinking: Transfering Data.
Heartbeat
Amber Blinking: Normal Operation. Not Blinking:
Malfunction.
3
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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 off the
power.
2. If you will be externally powering the device, connect the DC power
adapter. If connecting to a PoE switch, hub, 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)
Configuring the Adapter
Setting the IP Address
Please consult your Network Administrator to determine the appropri-
ate 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 first time it is connected and powered
up.
4
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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 fixed (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.
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 the 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.
5
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3. Setting the IP Address using the Em.exe Utility
The Em.exe is a Microsoft Windows based utility used to identify the
adapters connected on the same subnet and network segment. To
run the Em.exe utility, please insert the driver CD supplied with the
Adapter. Open the program at the following location (assume the
CD-ROM drive is at E):
E:\IO_over_IP\Utilities\Em\Em.exe
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.
6
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Controller Setup Menu Items
Menu Item
Description
IP Address
4 numbers separated by dots. If enabled, these
can be assigned by the DHCP server.
Subnet Mask
4 numbers separated by dots. If enabled, these
can be assigned by the DHCP server.
Gateway Address
DHCP Client
4 numbers separated by dots. If enabled, these
can be assigned by the DHCP server.
If disabled, the IP address, Subnet mask and
Gateway address must be assigned manually.
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Menu Item
Description
Socket Port of HTTP If disabled, the IP address, Subnet mask and
Setup Gateway address must be assigned manually.
Socket Port of Serial Port Number:
I/O 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 Spared function for the future expansion.
I/O
Currently has no function.
Destination IP
The Server IP address under TCP client or
Address/Socket Port 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 If packet mode is disabled, the data received
input
from the serial port will be transmitted
immediately with minimal delay. If packet mode
is enabled, the data will be saved in the buffer
memory first, and transmitted when the entire
packet is received or when the buffer memory
is full.
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Menu Item
Description
Packet mode inter-
packet timeout
In packet mode, the time constant used to
determine if the packet is finished. Acceptable
range is 10 to 1000 ms.
Device ID
User assigned device ID number. Acceptable
range is 0 to 65535.
Report device ID
when connected
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
Setup password
The login password can be empty or 1 to 15
characters long. If the password is empty then
no password is required for login.
Software Installation
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 difference
between a local serial device and one provided by a serial server.
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Installing the VSP Virtual COM Port Driver
1. Locate the necessary Software in the following folder on your driver
CD. The VSP COM.exe is the redirector software. The Em.exe is
used to setup the hardware mode to support VSP redirector.
2. Configure your hardware mode to support VSP.
• Run the EM.exe application to find the device hardware.
• Enter the setup menu by double clicking the listed hardware.
• Click Login (by default settings, there is no password).
10
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• Change the settings to COM Port, save the changes, and exit the
setup menu.
3. Run the VSP Setup Program.
• Double click the VSP COM.exe application in the VSP folder
on the supplied CD.You may receive a message indicating that
this driver has not yet passed Windows logo testing. If so, click
Continue Anyway.
• Select the COM ports to be redirected by checking the boxes
next to them:
11
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• Set the COM Port settings: The following figure 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 the 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 figure:
12
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Specifications
Specification
NETRS2321POE
LAN
Connector
Speed
RJ45
10/100Mbps
RS-232
Number of Ports 1 x RS-232
Signals
Connector
Parity
TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND
DB9 Male (RS-232)
None, Odd, Even
6, 7, 8
Data Bits
Stop Bits
Speed
1, 2
300 to 115.2Kbps
Power Requirements
Power Input
12V DC (via DC Jack), or
48V DC (via Ethernet Cable, PoE model only)
110mA @ 12V DC
Power
Consumption
Mechanical Specifications
Material
Metal
Gross Weight
250.5g (0.55 lb)
13
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Specification
NETRS2321POE
Environmental
Operating
Temperature
0 to 55C (32 to 131F)
-20 to 85C (-4 to 185F)
5 to 95% RH
Storage
Temperature
Operating
Humidity
14
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Technical Support
StarTech.com’s lifetime technical support is an integral part of our com-
mit-ment to provide industry-leading solutions. If you ever need help
prehensive selection of online tools, documentation, and downloads.
Warranty Information
This product is backed by a one 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 war-
rant 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 officers, directors, employees or agents) for any dam-
ages (whether direct or indirect, special, punitive, incidental, consequen-
tial, or otherwise), loss of profits, 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 limita-
tions or exclusions contained in this statement may not apply to you.
15
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