Summary of LTR16T
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Ltr-t installation guide.
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Thank you for choosing the lantronix ltr-t repeater. Like all lantronix products, the ltr-t is designed and built to exacting standards. We strive to make all of our products easy to use and of the highest quality. That’s how we’re able to support them with a five-year warranty and free technical su...
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The information in this guide is subject to change without notice. The manufacturer assumes no responsibility for any errors which may appear in this guide. Delni, thinwire, and thickwire are trademarks of digital equipment corporation. Copyright © 1993, lantronix. All rights reserved. No part of th...
Page 5: Table of Contents
Table of contents overview .................................................................................................... 1 guide to this manual ............................................................................................ 1 site preparation and unpacking ..........................
Page 6: Figures and Tables
Figures and tables figures: figure 1: ltr-t dimensions .......................................................................... 2 figure 2a: a simple network configuration ................................................... 6 figure 2b: a complex network configuration ................................
Page 7: Overview
Ltr-t installation guide 1 overview the ltr8t and ltr16t are 10base-t hub/repeaters that receive ethernet traffic from one cable segment and repeat that data to all of the other attached segments. The units provide 8 (ltr8t) or 16 (ltr16t) rj-45 connection to 10base-t media. The 10base-t media is ph...
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2 ltr-t installation guide site preparation and unpacking before installing the ltr-t, do the following to prepare your site: • check space requirements • confirm that the ltr-t will have the proper environmental conditions • check the installation of other hardware components • check the cable conn...
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Ltr-t installation guide 3 voltage 95-250 vac 3-wire single phase, autoranging frequency 47 to 63 hz operating current 0.5 amp (maximum) power 30 watts fuse (field replaceable) 2 amp 250 vac, time delay table 1: ltr-t power requirements fuse under normal use, the fuse should not need to be replaced....
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4 ltr-t installation guide installation of other hardware components ensure that the 10base-t (utp) cables you will be using have been tested and labeled. See the cable pinouts in appendix c, if necessary. If you will be connecting the ltr-t to a thinwire segment, you will need an ltx-2 or equivalen...
Page 11: Installation
Ltr-t installation guide 5 installation network configuration figure 2 shows two sample network configurations using the ltr-t. Figure 2a shows a simple network configuration using only 10base-t segments; figure 2b shows a more complex configuration using thickwire ethernet and interconnected ltr-t ...
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6 ltr-t installation guide 95-250v ~ 50-60hz 0.5a t2a/250v this equipment complies with the requirements in part 15 of fcc rules for a class a computing and tv reception requiring the operator to take whatever steps necessary to correct the interference. Device. Operation of this equipment in a resi...
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Ltr-t installation guide 7 cabling instructions as you follow these instructions, refer to figure 3 for an illustration of the ltr-t back panel. Figure 3 shows the location of the 10base-t ports, aui port, power cord, and fuse. Fuse ac input 95-250v ~ 50-60hz 0.5a t2a/250 this equipment complies wit...
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8 ltr-t installation guide 2. Connect each 10base-t cable to the ltr-t. Make sure the port number on the ltr-t matches the label on the cable, then insert one end of the cable into the connector. Connect the other end of the cable to the workstation, host, or network device. The aui port and unused ...
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Ltr-t installation guide 9 5. Connect the power cord to the ltr-t. The ltr-t can accept power from either 110 vac or 220 vac outlets directly, therefore, there is no need to use a voltage adapter. Warning: to reduce the risk of electric shock, in countries using an it power system or where protectiv...
Page 16: Power-Up Sequence
10 ltr-t installation guide power-up sequence this section explains the ltr-t power-up diagnostics and interpretation of the led display during normal operation. At the end of this section you will find suggestions for troubleshooting problems with the unit as well as maintenance information. Led te...
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Ltr-t installation guide 11 stat leds explanation yellow ltr-t is powering-up to the factory default configuration. This is expected if during power-up both front panel buttons were pressed. Otherwise, this display indicates that the non- volatile ram (nvr) has failed and the unit should be returned...
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12 ltr-t installation guide troubleshooting if your ltr-t unit does not power-up properly, try the following: 1. Check the power cable. Verify that power is reaching the unit. The ltr-t can receive power from either 110 vac or 220 vac outlets without any modification to the hardware, however, you mu...
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Ltr-t installation guide 13 normal operation during normal operation the ltr-t displays the status and activity of all its attached ports. The each port’s status is displayed as follows: stat led explanation green utp ports aui ports the link is good and receive polarity is correct. Or the link test...
Page 20: Configuration
14 ltr-t installation guide configuration the ltr-t has several features, configurable via the front panel: 1. Link test - enabled on all utp ports by default, the link test function continuously checks the ports to verify that a proper connection exists between each port and the device at the oppos...
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Ltr-t installation guide 15 configuration mode while in configuration mode the leds take on different meanings. The color of the pwr led indicates which function is being enabled/disabled. The stat leds indicate whether or not the particular function is enabled on each port, while the act leds indic...
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16 ltr-t installation guide link test mode is the first mode entered, and is indicated by the solid green pwr led. In this mode the ltr-t can enable/disable the link test function on any combination of the utp ports. The stat led above the lit act led indicates whether or not the link test is enable...
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Ltr-t installation guide 17 storing configuration to store the current configuration of the ltr-t as the power-up default, press both mode buttons simultaneously and hold them for approximately 3 seconds. The store operation can be performed while the ltr-t is in either status or configuration mode....
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18 ltr-t installation guide 10base-t wiring conventions there are two standard rj45 pin assignments used in connecting 10base-t equipment using unshielded twisted-pair (utp) cable. They are referred to as an mdi (medium- dependent interface) and mdi-x. The mdi designation refers to devices which tra...
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Ltr-t installation guide 19 hub interconnection ports 8 and 16 (ltr16t) are special in that they can be configured to simplify interconnection of multiple ltr-ts. To connect one ltr-t to another ltr-t the mdi/mdi-x switch on the back of the unit can be used. See "10base-t wiring conventions," above,...
Page 26: Glossary
20 ltr-t installation guide glossary attachment unit interface (aui) cable a 15-pin shielded, twisted pair cable used (optionally) to connect the ltr-t to a transceiver or lni-type device. Branch see segment. Hub see repeater. Local network interconnect a device that allows two or more devices acces...
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Ltr-t installation guide 21 normal data and collision signals. The ltr-t is an example of a repeater, and the physical medium that it uses is unshielded twisted-pair (utp). Segment a length of coaxial or utp cable. The ltr-t passes signals from each of its segments to all other attached segments. A ...
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Ltr-t installation guide appendix a-23 appendix a: power supply cord cord type: 3 conductors 1.0 mm 2 minimum conductor size (approx. 18 awg) rated for 250 volts ac, 10 amps length ≤ 3.0 meters (10 feet) the cord should have a harmonized cable type number. (“harmonized” refers to an internationally ...
Page 31: Appendix B: Cabling
Ltr-t installation guide appendix b-25 appendix b: cabling this appendix explains the different types of cable available to meet your networking needs -thickwire, thinwire, and unshielded twisted pair (utp). Refer to the glossary for an explanation of these and other terms used in this section. The ...
Page 32: Rj45 Pinout
Appendix b-26 ltr-t installation guide for most environments, it is acceptable to use standard 24 awg unshielded twisted pair (utp) telephone wire as your network medium. However, if the network is to be installed in a “noisy” environment (a location with high electromagnetic interference) it may be...
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Ltr-t installation guide appendix b-27 lantronix problem report procedure if you are experiencing problems with your lantronix product, please contact lantronix' technical service department. Lantronix 15353 barranca parkway irvine, california 92718 714-453-3990 • fax 714-453-3995 direct sales 1-800...
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Appendix b-28 ltr-t installation guide.
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Ltr-t installation guide warranty-29 warranty lantronix warrants for a period of five years from the date of shipment that each lantronix ltr8t or ltr16t supplied shall be free from defects in material and workmanship. During this period, if the customer experiences difficulties with a product and i...
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Declaration of conformity (accordingly to iso/iec guide 22 and en 45014) manufacturer’s name: lantronix manufacturer’s address: 15353 barranca parkway irvine, ca 92718 usa declares, that the product: product name: ethernet repeater model number(s): ltr8t and ltr16t conforms to the following standard...