StarTech.com NETRS2321P User manual

Manual Revision: 07/09/2013
For the most up-to-date information, please visit: www.startech.com
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
NETRS2321P
1 Port RS232 Serial over IP Ethernet
Device Server
*actual product may vary from photos

Instruction Manual
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 dierent 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
i
Table of Contents
Product Overview ..................................................................................1
DIN Rail Mounting..................................................................................................................................... 2
Load Default Settings / System Reset Button ................................................................................. 2
LED Indicators............................................................................................................................................. 2
RJ45 Ethernet Pin Assignments ........................................................................................................... 3
RS-232 DB9 Male Pin Assignment....................................................................................................... 3
Introduction............................................................................................4
Packaging Contents ................................................................................................................................. 4
Installation ..............................................................................................4
Web Browser Method.............................................................................................................................. 4
Virtual COM Port Application................................................................................................................ 4
Broadcast Search....................................................................................................................................... 5
Web Console Operation.......................................................................................................................... 6
Administrator.............................................................................................................................................. 6
Authentication ........................................................................................................................................... 6
System IP ...................................................................................................................................................... 7
System Status ............................................................................................................................................. 7
Load default setting................................................................................................................................. 8
Firmware update ....................................................................................................................................... 8
TCP Mode..................................................................................................................................................... 9
Telnet Server / Client................................................................................................................................ 9
UART .............................................................................................................................................................. 12
Virtual COM Software Operation......................................................................................................... 14
COM Mapping ............................................................................................................................................ 15
TCP/UDP ....................................................................................................................................................... 15

Instruction Manual
ii
Product Applications.............................................................................17
UDP ................................................................................................................................................................ 17
TCP.................................................................................................................................................................. 17
Specications..........................................................................................18
Technical Support ..................................................................................19
Warranty Information............................................................................19

Instruction Manual
1
Product Overview
Top View
Front View
Rear View
DIN rail screw hole
Wall-mount screw hole
RS-232 DB9 male
serial port
DC Jack
Load Default/Reset
Button
RJ45 10/100M
Ethernet port

Instruction Manual
2
DIN Rail Mounting
Attach the included DIN Rail brackets (one per side) using the provided screws to the
top DIN Rail screw hole (marked in the above diagram), and clip to your DIN Rail
Load Default Settings / System Reset Button
Load Default Settings
Press and hold this button for more than 3 seconds, then release to load the factory
default settings.
IP address: 10.1.1.1
Subnet Mask: 255.0.0.0
Login ID / Password: admin
System Reset
Press and hold this button for more than 10 seconds, then release to reboot the device
(maintains conguration settings)
LED Indicators
LED Name Status Description
Ready On Power is on and the device is ready.
O Power is o or the device is not ready.
Link/Act
On UTP is link.
Blinking UTP Tx/Rx is activity.
O UTP is not link.
Tx/Rx
Blinking RS-232 port is transmitting or receiving
data.
O No data is transmitting or receiving in
RS-232 port.

Instruction Manual
3
Pin
1 TX+
2TX-
3 RX+
6RX-
RJ45 Ethernet Pin Assignments
RS-232 DB9 Male Pin Assignment
NOTE: This serial device server performs as a DTE device.
Pin Name I/O
1 DCD Input
2 RD Input
3 TD Output
4DTR Output
5 GND
6 DSR Input
7RTS Output
8CTS Input

Instruction Manual
4
Introduction
Packaging Contents
• 1 x Serial over IP Device Server
• 1 x Universal Power Adapter (NA/UK/EU)
• 1 x Software CD
• 1 x Instruction Manual
• 1 x DIN Rail Kit
Installation
Web Browser Method
1. Plug in the power adapter and connect the RJ45 interface to your LAN.
NOTE: Alternatively, you can also use a crossover cable to connect the NETRS2321P
directly to your system for the initial conguration.
2. Press and hold the load default button for more than 3 seconds and less than 10
seconds, then release it. This will return the serial device server to factory default
and it will respond to the IP address 10.1.1.1.
3. Congure the PC to the same IP domain.
4. Open a web browser and connect to http://10.1.1.1 to open the conguration
interface. The default login ID will be “admin” and the password will be “admin”.
5. Once logged in, you will have access to all conguration settings including the
ability to change the IP address for the device server.
Virtual COM Port Application
1. Plug in the power adapter and connect the RJ45 interface to your LAN.
2. Insert the included CD and launch the VirtualCom software.
3. Follow the on-screen instructions to install VirtualCom and WinPcap.
4. Once installed, double-click the VCOM shortcut to launch the
application.
5. Click the Search button in the VCOM software window to locate the device.
NOTE: You may receive a rewall notication at this point of the install, please allow
access to this application

Instruction Manual
5
Broadcast Search
The Broadcast Search function is used to locate all NETRS2321P devices that are
connected to the same LAN as your computer. Since the Broadcast Search function
searches by MAC address and not IP address, all NETRS2321P connected to the LAN
will be located, regardless of whether or not they are part of the same subnet as
the host.
NOTE: Broadcast packet packets are not passed through a router. The VCom utility can
only be used to monitor devices in the same segment of the LAN.
NETRS2321P

Instruction Manual
6
Web Console Operation
Enter the IP address you have set for the
NETRS2321P device into your web browser
address bar (default IP: 10.1.1.1) and you will
prompted to login with your user ID and
password (Default: admin/admin).
After a successful login, you will see Administrator,
TCP Mode, UDP Mode, UART, and Reset Device
selections in left frame of the web console - the
following sections will describe their function.
Administrator
Under the ‘Administrator’ heading, you will be able to set/change the device password,
congure the networking parameters, display the current rmware version, load the
factory defaults, and perform any future rmware upgrades.
Authentication
In this page, you can change login ID and Password. The NETRS2321P device supports
a maximum of 15 characters for password, only alphanumeric characters are allowed
(“0-9”,”a-z”,”A-Z”).
Press “Update” to store the data. Reset the device to take eect.