CyberResearch ETS 2404 User manual

Serial Communications
USER’S MANUAL
VER. 2.0C • FEB 2008
No part of this manual may be reproduced without permission
ETS 2604
Ethernet to 4-Port RS-232/422/485
Interface Module, 230.4 kbps Data
Rate, with 4 DB-9M Connectors
®
CyberResearch®,Inc.
www.cyberresearch.com
25 Business Park Dr., Branford, CT 06405 USA
203-483-8815 (9am to 5pm EST) FAX: [phone]

CyberResearch® Serial Communications ETS 2604
CyberResearch, Inc. iii
25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com
©Copyright 2008
All Rights Reserved.
February 6th 2008
The information in this document is subject to change without prior notice
in order to improve reliability, design, and function and does not represent
a commitment on the part of CyberResearch, Inc.
In no event will CyberResearch, Inc. be liable for direct, indirect, special,
incidental, or consequential damages arising out of the use of or inability
to use the product or documentation, even if advised of the possibility of
such damages.
This document contains proprietary information protected by copyright.
All rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic, or other means in any form without prior written
permission of CyberResearch, Inc.
Trademarks
“CyberResearch,” and “ETS 2604,” are trademarks of CyberResearch, Inc.
Other product names mentioned herein are used for identification
purposes only and may be trademarks and/or registered trademarks of
their respective companies.
• NOTICE •
CyberResearch, Inc. does not authorize any CyberResearch product for
use in life support systems, medical equipment, and/or medical devices
without the written approval of the President of CyberResearch, Inc. Life
support devices and systems are devices or systems which are intended
for surgical implantation into the body, or to support or sustain life and
whose failure to perform can be reasonably expected to result in injury.
Other medical equipment includes devices used for monitoring, data
acquisition, modification, or notification purposes in relation to life
support, life sustaining, or vital statistic recording. CyberResearch
products are not designed with the components required, are not subject
to the testing required, and are not submitted to the certification required
to ensure a level of reliability appropriate for the treatment and diagnosis of
humans.

ETS 2604 CyberResearch® Serial Communications
iv ©Copyright 2008CyberResearch, Inc.
ETS 2604
Revision # Description Date of Issue
1.0h Initial Release July 2002
2.0C Revision Feb 7th 2008

CyberResearch® Serial Communications ETS 2604
CyberResearch, Inc. v
25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com
Contents
INTRODUCTION.....................................................................................................................1
OVERVIEW .........................................................................................................................................1
WHAT’S INCLUDED............................................................................................................................1
FACTORY DEFAULT SETTINGS ...........................................................................................................1
CARD SETUP .........................................................................................................................2
ELECTRICAL INTERFACE SELECTION..................................................................................................2
RS-485 ENABLE MODES ....................................................................................................................2
SOFTWARE INSTALLATION...................................................................................................3
WINDOWS ..........................................................................................................................................3
LOCATING THE DEVICE AND ASSIGNING AN IP ADDRESS...................................................................3
SOFTWARE DEVICE CONFIGURATION .................................................................................4
WINDOWS ..........................................................................................................................................4
WEB CONFIGURATION .......................................................................................................................4
SECURITY...........................................................................................................................................4
PORT DEFAULTS.................................................................................................................................4
CUSTOM BAUD RATES .......................................................................................................................4
RS MODES .........................................................................................................................................4
RESETTING TO FACTORY DEFAULTS ..................................................................................................4
USING THE DEVICE WITH SUPPLIED SOFTWARE .................................................................5
TACTICAL SOFTWARE ........................................................................................................................5
Configuration .................................................................................................................................5
Usage Details..................................................................................................................................5
Configuration .................................................................................................................................6
Usage Details..................................................................................................................................6
RAW DATA SOCKETS .........................................................................................................................7
Configuration .................................................................................................................................7
Usage Details..................................................................................................................................7
TECHNICAL DESCRIPTION....................................................................................................8
CONNECTOR PIN ASSIGNMENTS.........................................................................................................8
RS-422/485 (DB 9 Male)...............................................................................................................8
RS-232 (DB-9 Male)......................................................................................................................8
SPECIFICATIONS ...................................................................................................................9
ENVIRONMENTAL SPECIFICATIONS ....................................................................................................9
MANUFACTURING ..............................................................................................................................9
MEAN TIME BETWEEN FAILURES (MTBF).........................................................................................9
APPENDIX A-TROUBLESHOOTING....................................................................................10
APPENDIX B-HOW TO GET ASSISTANCE .........................................................................11
APPENDIX C-ELECTRICAL INTERFACE............................................................................12
RS-232 ............................................................................................................................................12
RS-422 ............................................................................................................................................12
RS-485 ............................................................................................................................................12

ETS 2604 CyberResearch® Serial Communications
vi ©Copyright 2008CyberResearch, Inc.
APPENDIX D-ASYNCHRONOUS COMMUNICATIONS .........................................................13
APPENDIX E–BACK PANEL...............................................................................................14
APPENDIX F-COMPLIANCE NOTICES ...............................................................................15
FEDERAL COMMUNICATIONS COMMISSION STATEMENT..................................................................15
EMC DIRECTIVE STATEMENT..........................................................................................................15

CyberResearch® Serial Communications ETS 2604
CyberResearch, Inc. 1
25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com
Introduction
Overview
The CyberResearch ETS 2604 is a four-port RS-232/422/485 Ethernet based serial I/O adapter supporting data rates
up to 230.4 K bps.
The RS-232 compatibility allows for connection to devices utilizing the RS-232 electrical interface, such as
modems, data-entry terminals, and plotters.
RS-422 provides excellent communications for long distance device connections up to 4000ft., where noise
immunity and high data integrity are essential.
RS-485 is optimized for ‘Multi-Drop’ or ‘Party-line’ operations selecting data from multiple peripherals (as many as
31 devices can be connected on an RS-485 bus).
What’s Included
The ETS 2604 is shipped with the following items. If any of these items is missing or damaged, contact
CyberResearch, Inc.
•ETS 2604 Ethernet Terminal Adapter
•CyberResearch Software
•5 volt power adapter
•Ethernet cable, straight through (yellow)
•Ethernet cable, cross over (blue)
Factory Default Settings
The ETS 2604 factory hardware default settings for all ports are as follows:
Set up for RS422 or RS485.
T = 120 ohm termination between RX+ an d RX -
PU Pull up on RX +
PU Pull up on RX -
1 2 3 4 5 6 7
ON OFF 8
EN
T
PD
PU
EN
T
PD
PU
RS-422/485

ETS 2604 CyberResearch® Serial Communications
2©Copyright 2008 CyberResearch, Inc.
Card Setup
Electrical Interface Selection
Each port on the ETS 2604 has the ability to be used in either RS-232 or RS-422/485. This is selectable using the
software setup utility and correctly configuring DIP-switches S1-S4.
RS-485 Enable Modes
RS-485 is ideal for multi-drop or network environments. RS-485 requires a tri-state driver that will allow the
electrical presence of the driver to be removed from the line. The driver is in a tri-state or high impedance condition
when this occurs. One of the unique features of the ETS 2604 is the ability to be RS-485 compatible without the
need for special software or drivers. This ability means that the user can effectively use the ETS 2604 in an RS-485
application with the standard CyberResearch Software supplied drivers.
Typically, each end of the RS-485 bus must have a line-terminating resistor (RS-422 terminates the receive end
only). A 120-ohm resistor (silk-screen ‘T’) is across each RS-422/485 input in addition to a 1K-ohm pull-up (silk-
screen ‘PU’) and a 1K-ohm pull down (silk-screen ‘PD’) combination that biases the receiver inputs. Only the ends
of an RS-485 network should have the 120-Ohm terminating resistor. The presence of the 120-Ohm termination
resistor across the input data pins (RX+/RX-) as well as the pull-up and pull-down resistors may be removed or
inserted with DIP-switches S1-S4. To add the termination/bias resistors select the ‘On’ position, to remove it select
the ‘Off’ position.
1 2 3 4 5 6 7
ON OFF 8
EN
T
PD
PU
EN
T
PD
PU
RS-232
1 2 3 4 5 6 7
ON OFF 8
EN
T
PD
PU
EN
T
PD
PU
RS-422/485
1 2 3 4 5 6 7
ON OFF 8
EN
T
PD
PU
EN
T
PD
PU
RS-422/485 No termination

CyberResearch® Serial Communications ETS 2604
CyberResearch, Inc. 3
25 Business Park Drive P: [phone]; F: [phone]
Branford, CT USA www.cyberresearch.com
Software Installation
Software installation depends on your operating system, so see the appropriate section below.
Windows
If you choose to use the ETS 2604 device as a virtual serial port, you will need to install Tactical Software's serial
port redirector software Serial/IP. A 30-day trial version is included on the cd. For installation help or to download
the latest version of Serial/IP, consult www.tactical-sw.com. For software configuration, see the section "Using the
Device with supplied Software" below. In addition to the Serial/IP program, a utility to configure the ETS 2604
device from Windows is provided.
Locating the Device and Assigning an IP Address
Before the ETS 2604 can be used, it must be assigned an IP address valid to your network. When first powered up,
the device will attempt to automatically find an IP address using DHCP. If the device has link but cannot locate a
DHCP server, the link LED on the box will flash, indicating that the device does not have valid network settings. In
that case, you will need to assign it a static address using the configuration utility provided. The configuration utility
is also useful for locating devices to determine the IP address. The method depends on your operating system, so see
the appropriate section below.
Tip: If your device has obtained DHCP (the link light is solid) and you do not wish to put it on the local network,
you can use your DHCP server software to find its IP using the MAC address located on the device's label. Once
you have the IP, configure the device via the web (see the section Web Configuration).

ETS 2604 CyberResearch® Serial Communications
4©Copyright 2008 CyberResearch, Inc.
Software Device Configuration
Windows
Windows device configuration is performed through the “SeaLink Configuration” utility provided with the software
installation. When started, the utility will display all devices on the local network (the utility cannot see devices on
the other side of a router). If your device is not listed, verify that it is connected to the network (see the section
Troubleshooting). To assign static IP addresses, select your device in the list, then uncheck the box that says
“Enable DHCP” and change the “IP”, “Gateway”, and “Network Mask” fields to values valid on your network.
Then click “Apply Changes”. The device will reboot and temporarily disappear from view, so you may need to click
“Search Again” to relocate the device.
Web Configuration
Once the device has been assigned an IP address reachable from your computer, you can configure it through the
onboard web server. Open a web browser such as Internet Explorer or Netscape and type “http://x.x.x.x” into the
URL field, where “x.x.x.x” is the device’s IP address. The web interface provides a summary page that lists various
details about the device, a port settings page that allows you to configure aspects of each individual serial port, and
an administration page that lets you change the device’s network and password settings.
Security
The password you can set from the Administration page currently applies to the Web Configuration only. The web-
based settings have been identified as a key area where security is important, since users do not need to install
software to modify settings.
Port Defaults
The Port Settings page allows you to set defaults to which each serial port will be set when first opened. If you are
using a virtual serial port protocol such as SeaLink or Tactical Software, programs may change these settings
dynamically after opening the ports. If you want programs to always use the defaults you set, check the box labeled
"Always use defaults". This can be useful especially when specifying a custom baud rate that is not available from
your operating system (see Custom Baud Rates).
Custom Baud Rates
From the Port Settings Page, you can enter a baud rate of any value from 1 to 921600. While it may not be possible
to hit the exact desired baud rate, the Uart will attempt to set it as closely as possible and will be within an
acceptable 2% range. After you click Submit, the page will refresh and display the baud rate actually being used.
RS Modes
The Port Settings page allows you to specify the RS mode for a given port. This may not be the best way to
configure RS modes in all situations (see the section SeaLink Protocol::Configuration). However, if you are using a
protocol that does not allow you to configure the RS mode, you must set the RS mode here.
In all cases, the RS mode must be set in software as well as hardware. See the section Electrical Interface Selection
for details on configuring the hardware.
Resetting to Factory Defaults
If you have forgotten your password or otherwise wish to reset the device to the factory defaults, manually browse
to "http://x.x.x.x/debug.htm" (where x.x.x.x is the device's IP address) and click the button marked "Reset to Factory
Defaults". You will be prompted for a username and password. For the username, enter "debug". In the password
field, type the MAC address of the unit, located either on the summary page or on the label on the device. The MAC
address should be entered without formatting such as dashes or spaces.