NTI
ETH-4X1 / 2X1 (MANUAL ETHERNET SWITCH)
INSTALLATION / USER GUIDE
MAN023 Rev Date 6/28/2002
R
NETWORK
TECHNOLOGIES
INCORPORATED
1275 Danner Dr
Aurora, OH 44202
www.nti1.com
Tel:330-562-7070
Fax:330-562-1999
Table of Contents
Introduction...........................................................................................................1
Glossary ...............................................................................................................1
Limitations ............................................................................................................1
Application Examples...........................................................................................2
Materials...............................................................................................................3
Preparation for Installation....................................................................................3
Features and Functions........................................................................................4
Installation ............................................................................................................5
Plug-in and Boot Up ..........................................................................................6
RS232 ..................................................................................................................6
Technical Specifications.......................................................................................7
Interconnection Cable Wiring Method...................................................................7
Troubleshooting....................................................................................................8
Warranty Information............................................................................................9
Introduction
The NTI ETH-4X1 / ETH-2X1Manual Ethernet Switch was designed to enable the conne ction of one of fou r
DEVICEs to one NETWORK or one DEVICE to one of four separate NETWORKs using standard ethernet cable.
The user can control the ETH-4X1 / ETH-2X1 manually to make a single connection active between one NETWORK
and one DEVICE at a time.
Available Options
• Manual Ethernet Switch with 2 user selectable connection ports rather than 4 (ETH-2X1)
• RS232 control to change connections in the ETH-4X1-RS switch via a serial stream (ETH-4X1-RS or
ETH-2X1-RS)
Glossary
NETWORK- Local Area Network (LAN)* , File server, DSL internet connection
CPU- Computer for user access
DEVICE- CPU or other data entry/acquisition equipment
COMMON- A DEVICE or NETWORK that is to be commonly connected to the selected NETWORKSs or DEVICESs
(up to 4) through the ETH-4X1 Manual Ethernet Switch
SELECTABLE- Any of the NETWORKs or DEVICEs (up to 4) that will be plugged into the user selectable ports
(1-4) and connected to the COMMON through the ETH-4X1 Manual Ethernet Switch
*Note: The ETH-4X1 Manual Ethernet Switch cannot differentiate between LANs and modems. For the purposes
of this manual they will be considered to be identical.
Limitations
All SELECTABLEs must be of the same type (All NETWORKs or all DEVICEs)
If a DEVICE is connected to the "COMMON" port, then only NETWORKs may be connected to the user selectable
ports.
If a NETWORK is connected to the "COMMON" port, then only DEVICEs may be connected to the user selectable
ports.
1
Application Examples
2
Materials
Materials Supplied with this kit:
• NTI ETH-4X1 / ETH-2X1 Manual Ethernet Switch
• 120VAC or 240VAC -12VDC/.5A AC Adapter
• This owner's manual
Materials Not Supplied, BUT REQUIRED:
• Ethernet Cables- Cat5(e)UTP straight-through with male-male connectors
Preparation for Installation
• A location should be chosen for the ETH-4X1 such that the ethernet cable from each supported device will reach
it.
• The ethernet cables must be run to the locations where the ETH-4X1 switch, COMMON, and the
SELECTABLE(s) will be mounted. Be careful to route the cables away from any sources of magnetic fields or
electrical interference that might reduce the quality of the signal (i.e. AC motors, welding equipment, etc.).
• A 120V or 240V electrical outlet (depending on the AC adapter being used) must be available close enough to
the mounting location of the ETH-4X1 to plug the AC adapter into.
• All cables should be installed in such a way that they do not cause stress on their connections to the equipment.
Extended lengths of cable hanging from a connection may interfere with the quality of that connection. Secure
cables as needed to minimize this.
• Properly shut down and disconnect the power from the DEVICE(s) and/or NETWORK(s) to be connected. If
other equipment is involved whose connections are being interrupted, be sure to refer to the instruction manuals
for that equipment for proper disconnection and re-connection procedures before proceeding.
3
Features and Functions
1. Power- LED to indicate the ETH-4X1 Manual Ethernet Switch has power to operate
2. 12VDC .5A- female connection jack for the AC adapter
3. Select Switches- (1-4)- for manual control of "COMMON" and user selectable ports (1-4)
4. RS232- 9 pin DIN male (optional)- for computer control of "COMMON" and user selectable port s (1 -4)
5. Status LEDs- for visual indication of switch connection between the "COMMON" and the user selectable
ports (1-4)
6. User Selectable Ports (1-4)- RJ45 female- for connection of SELECTABLEs
7. COMMON port- RJ45 female- for connection of COMMON
4
Installation
1. Position the ETH-4X1 Manual Ethernet Switch such that the ethernet cable from the COMMON , the AC
adapter power cable, and the ethernet cables from the SELECTABLEs can reach the ETH-4X1 Manual
Ethernet Switch.
2. Connect one end of an ethernet cable to the COMMON (See Fig.1.) Connect the other end of that
cable to the "COMMON" port on the ETH-4X1 Manual Ethernet Switch.
3. Connect another ethernet cable between each SELECTABLE and the user selectable ports (1-4) on the
ETH-4X1 Manual Ethernet Switch. (See Figs.1 and 2.)
5
Plug-in and Boot Up
1. Connect the AC adapter power connector to the 12VDC port on the ETH-4X1 Manual Ethernet Switch.
Make sure the power connector is properly inserted. (See Fig. 3.)
2. Plug the AC adapter into a power outlet. The “Power” LED on the ETH-4X1 Manual Ethernet Switch should
illuminate indicating that a proper power connection has been made. Status LED "1" should also illuminate
indicating a connection between the "COMMON" port and user selectable port 1.
Fig. 3
3. Power up the COMMON and SELECTABLE device(s). The COMMON device should react as if it were
directly connected to the SELECTABLE device plugged into user selectable port 1.
RS232
To use the RS232 port (optional) , connect a crossed female serial cable from a CPU serial port to the DB9 pin
male RS232 port on the ETH-4X1-RS Manual Ethernet Switch. Connections are as follows:
Connector: Standard 9 pin serial, male
Pins at ETH-4x1-RS Signal Pins at CPU
2 RxD 3
3 TxD 2
5 GND 5
RS-232 setup parameters:
• 9600 baud
• 8 bit data
• 1 stop bit
• no parity
• no flow control
1
23
6
7
Mating Face of Male DB9
4
5
89
6
Any terminal program can be used to control the switch, if that program supports the given parameters (example
HyperTerminal in Windows, Norton Commander terminal in DOS). An available standard serial port is needed.
Accepted commands:
Keystroke Action
1 Switch to port 1
2 Switch to port 2
3 Switch to port 3 (ETH-4x1-RS only)
4 Switch to port 4 (ETH-4x1-RS only)
0 Disconnect all
D Deactivate buttons
B Activate buttons (power-ON defaults)
All other characters will be ignored.
All correctly received characters will be echoed (repeated back to user's monitor)
Technical Specifications
Interconnect Cable CAT5(e) UTP Ethernet straight-through (not crossed)
Power 120 or 240 VAC 12VDC / 5A AC Adapter (provided)
ETH-4X1 current draw < 0.2A @ 12VDC
Interconnection Cable Wiring Method
The CAT5(e)UTP connection cable between the COMMON, SELECTABLE(s) and the ETH-4X1 Manual Ethernet
Switch is terminated with male ethernet connectors and must be wired according to the EIA /TIA 568A industry
standard. Wiring is as per the table and drawing below.
Pin # Wire Color Function
1 White/Orange T
2Orange R
3 White/Green T
4Blue R
5 White/Blue T
6Green R
7 White/Brown T
8Brown R
7
Pair 2 Pair 1
T
1
+
(View Looking into RJ45 female)
Pair 3
Pair 4
T
R
R
T
3
2
4
5
-
+
-
+
R
R
T
8
6
7
+
-
-
Troubleshooting
Each and every piece of every product produced by Network Technologies Inc is 100% tested to exacting
specifications. We make every effort to insure trouble-free installation and operation of our products. If problems
are encountered while installing this product, please look over the troubleshooting chart below. If an answer is not
found in the chart, check the FAQs (Frequently Asked Questions) at our website at http://www.nti1.com or contact
NTI directly for help at 800-742-8324 (800-RGB-TECH) in US & Canada or 330-562-7070 (worldwid e). We will
be happy to assist in any way we can.
Problem Cause Solution
ETH-4X1 power LED does not
illuminate
NETWORKS(s) will not
communicate with DEVICE(s)
If the answer to a question is not in the troubleshooting chart or on the NTI website and a call to NTI is required,
please have the following information available at the time of the call:
• NTI model number (from the top) and serial number (from the bottom) of the switch.
M/N ___________ S/N ______________
• The total length of the ethernet cables in use. ______
• Power supply is not connected
or plugged-in.
• Poor Connection
• Wrong ethernet cable
• Make sure outlet is live and AC adapter is
plugged in. Also make sure power jack is
fully connected to the switch.
• Make sure all ethernet cables are inserted
completely, snapping into RJ45 sockets
• Cable must be CAT 5 ethernet- straight
through type, NOT crossed
• Computer Information:
• Manufacturer ______________ • BIOS Revision __________________________
• Model ____________________ • Operating System _______________________
• Ram _____________________
• BIOS Mfr. _________________
• Make and model number of any modems connected to the switch.
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
8
Warranty Information
The warranty period on this product (parts and labor) is one (1) year from the date of purchase. Please contact
Network Technologies Inc at (800) 742-8324 (800-RGB-TECH) or (330) 562-7070 for information regarding
repairs and/or returns. A return authorization number is required for all repairs/returns.
Copyright
Copyright © 2002 by Network Technologies Inc, all rights reserved. No part of this publication may be
reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without the prior written consent of Network Technologies Inc, 1275
Danner Drive, Aurora, Ohio 44202. For more information please contact Network Technologies Inc at (800)
742-8324 (800-RGB-TECH) or (330) 562-7070.
Changes
The material in this guide is for information only and is subject to change without notice. Network Technologies
Inc reserves the right to make changes in the product design without reservation and without notification to its
users.
MODEL : ETH-4X1
ETH-2X1
ETH-4X1-RS
ETH-2X1-RS
SERIAL NO:
DATE: __
INSPECTED BY:
9
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