Transition Networks E-TBT-HB-0804 User's Manual
Contents
1. G FERRE F LANMaster T8 OOIT hubs can be TERTE cascaded using oaeeade twisted pair 10BASE T cable yyy and the X crossover uplink RJ 45 connector And the BNC connector on the LAN Master T8 back can be connected to LOBASE 2 or the AUI connector on the LAN Master T8 back can be connected to to LOBASE 5 or through a media converter installed on the AUI connector to LOBASE T LOBASE 5 or 1OBASE FL GG GG i A 00 TT n ial inl ml O a o GaGa Ra GRR A GE Aa G EEERG Be AEBAS HBERBAHBAD BABARBeRASE 2 Port Ethemet Repeater Hub 2 Connectors and Indicators CONNECTORS Straight through RJ 45 Connectors Crossover RJ 45 X Connector Eight 8 straight through RJ 45 connectors labeled 1 8 and one 1 crossover RJ 45 connector labeled X are located on the front of the LAN Master T8 Power Adapter Connector LED Indicators BNC Connector AUI Connector One 1 AUI connector one 1 BNC connector and one 1 AC power supply adapter connector are located on the bac2. LAN Master T8 Back Features e Eight fixed RJ 45 twisted pair connectors at front provide terminal device connections Optional RJ 45 uplink port connector at front eliminates need for crossover cable between hubs BNC and AUI connectors at back provide optional connection to EITHER 10BASE 2 OR 1OBASE 5 e LED indicators at front provide continuous LAN Master T8 network traffic data 1 LAN Macer T8 The sole purpose of this remedy shall be provided the customer with the replacement or repair of non conforming goods in the manner described in this Warranty statement This exclusive remedy shall not be deemed to have failed of its essential purpose so long as TN is willing and able to repair or replace the defective item s or refund the purchase price TN reserves the right to inspect products claimed to be defective under warranty either at the customer s location or at TN s plant TN assumes no liability for liability charges incidental to the adjustment service repairing removal or replacement of the product or other costs or the expense of repairs made outside of its factory except when made with TN s prior written consent Additionally Transition Networks reserves the right to charge for all testing and shipping incurred if after testing a retum is classified as No Problem Found TN s total liability in connection with the products and their installation to all persons and from all causes in t
3. 10 Mh s Baseband Network Configuration Guidelines Ethemet 802 3 specifications define network configuration guidelines for the 10 M b s baseband network 10BASE T 1OBASE 2 and LOBASE 5 cable segments can be installed as a single Ethernet collision domain if the cable segments are connected using repeaters When connecting LAN Master T8 repeater hubs the transmission path between any two Data Terminating Equipment DTE network devices can consist of no more than five segments A segment is the independent network cable connection between repeaters or between U n repeaters and network devices To verify the network configuration by assigning segment numbers to cable connections 1 Determine the two terminals in the network which are separated by the greatest number of segments es OE 2 Assign asegment path between the terminals by labeling the cable connected to one of the terminals segment 1 and the segment connected E BAGEA E E to the other terminal segment n
4. n total number of segments lt 5 3 To verify that no segment paths contain more than n segments assign segment paths and numbers to all other terminals ERER a 4 Verify than no more than three of the segments are LOBASE 2 or 1OBASE 5 with multiple stations attached d BERRA aiGa G ag a 9 LAN Macer T8 2 Port Ethemet Renester Hub 10
5. LANMASTER T8 8 PORT HUB SPECIFICATIONS Standards IEEE 802 3 Physical Dimensions 137 mm x 137 mm x 25 mm Power Power Supply Adapter AC Input 47 63 hertz PN Requirement Location 3532 120 volts 60 hertz 28 watts USA Canada M exico 3535 230 volts 50 hertz 28 watts Europe 3534 100 volts 50 60 hertz 28 watts Japan 3533 240 volts 50 hertz 28 watts United Kingdom 3536 240 volts 50 hertz 28 watts Australia DC Output 12 volts at 800 mA maximum Environment Temperature 0 50 C 32 to 122 F Humidity 10 90 non condensing Altitude 0 10 000 feet Warranty Lifetime LANMester T8 8 Port Ethemet Hub E TBT HB 0804 33022 B For assistance in installing using or maintaining the TRANSITION Networks LAN Master T8 8 Port Ethernet Repeater Hub contact TRANSITION Networks Technical Support at 800 260 1312 or contact your local distributor 21 LANMacter Ts CAUTION RJ connectors are NOT INTENDED FOR CONNECTION TO THE PUBLIC TELEPHONE NETWORK Failure to observe this caution could result in damage to the public telephone network Der Anschluss dieses Ger tes an ein Gffentlickes Telekommunikationsnetz in den EG Mitgliedstaaten verst sst gegen die jeweligen einzelstaatlichen Gesetze zur Anwendung der Richtlinie 91 263 EWG zur Angleichung der Rechtsvorschriften der Mitgliedstaaten Uber Telekommunikationsendeinrichtungen einschliessliich der gegenseitigen Anerk
6. or directly to TN TN will only accept goods for retum if the following conditions have been met 1 A retum form is obtained from TN 2 The freight charges have been prepaid by the customer 3 Goods are re packed in their original packaging If under warranty TN shall at its option 1 repair the goods free of charge 2 replace the goods free of charge or 3 accept the return of the item s and credit the current price to the reseller within 90 days of purchase or 4 if the goods are not under warranty will repair the item s at a minimum charge of USD 200 two hundred U S dollars per item THIS IS THE EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY IN NO EVENT SHALL TRANSITION NETWORKS BE LIABLE FOR SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND WHETHER FOR BREACH OF ANY CONDITION OF SALE FOR NEGLIGENCE ON THE BASIS OF STRICT LIABILITY CONTRACT OR OTHERWISE AND IRRESPECTIVE OF WHETHER TN ISINFORMED BY CUSTOMER OF THE POSSIBILITY OF SUCH DAMAGES IN ADVANCE OF THIS SALE 17 LAN Macer T8 Networking the LAN Master TS The LAN Master T8 OCCT Repeater Hub can be i installed in an Ethernet network by connecting 10BASE T cable between RJ 45 connectors at the Try ese OnE E front of the LAN Master T8 and various network terminal devices CLIII Se Oo Additionally
7. 45 Male A EEE E 1 De a he a a oak ahs 2 eat BY gee OS PE ASS 3 die ONO GU ve Pals ive Be gt thsegh A nan 6 10BASE T network are pins 1 amp 2 and pins 3 amp 6 Use only dedicated wire pairs such as blue white amp white blue orange white amp white orange for the active pins 7 LAN Macer T8 Installing Thinnet 1OBASE 2 Cable The LAN Master T8 has a female BNC MDI connector installed at the back for connection to 1OBASE 2 cable and comes with a mating T connector and a 50 ohm segment terminator for making the cable connection To connect to LOBASE 2 network cable 1 Locate or build IEEE 802 3 compliant LOBASE 2 cable with male BNC connectors installed at both ends 2 Install the mating T connector to the female BNC connector on the LAN Master T8 3 Install LOBASE 2 cable to one side of the T connector 4 Install LOBASE 2 cable to other side of the T connector OR if the LAN Master T8 is the last network device in the daisy chain install a 50 ohm terminator 5 Verify that the LOBASE 2 segment coax cable segment is terminated properly at both ends In a coax thinnet installation the first and last device in the daisy chain must be terminated with a 50 ohm terminator Additionally the 10BASE 2 segment must be grounded to earth ground at one end 50 ohm terminator earth ground p 50 ohm terminator 8 Port Ethe
8. the distributor or contact TN e Request a Material Repair Authorization number MRA e Ship the item s prepaid in the original packaging to Transition Networks at the above address Include the MRA number on the outside of the carton add or on the Packing List e Include a copy of the MRA form e Include a copy of the original invoice or packing list if possible to expedite processing e Only the customer end user may send the items s to TN TN will contact the customer after the item s have been received inspected and a cost estimate of the repair determined e The repair charges may be billed with customer s approval though the distri butor or on a prepaid or C O D basis directly to the customer The charges will include the cost of shipping The retum authorization numbers are valid only for 90 days from the date issued 2 Port Ethemet Repeater Hub 18 Warranty Statement A Five Year Warranty Transition Networks Inc TN warrants for a period of five years that TN products with the exception of power supplies and fans that TN warrants for two years will be free from defects in materials and workmanship and will be in conformity with TN s specifications TN s warranty on products manufactured by or assembled for TN in accordance with a customer s specifications is a five year warranty that the goods conform to such specifications The warranty is invalidated if the goods have been subject to al
9. 1OBASE T Requirements 000 0 ee 7 1OBASE 2 Requirements 000000 eee ee 8 1OBASE 5 Requirements 000 00 ee 8 10 Mb s Network Configuration Guidelines 9 Installing Twisted Pair LOBASE T Cable 11 Installing Thinnet LOBASE 2 Cable 005 12 Installing Thicknet LOBASE 5 Cable 005 13 Powering the LANMasterT8 0 0200 0000s 14 4 OPERATION 0002s eee I5 Monitoring Power LED 0000 0c eee eee eee 15 Monitoring Status LEDS 0000 000 e eee 15 5 MAINTENANCE 00 e ee LO Fault ISOlAUON wisi pa eg ae ee fe a a ee a ee 16 Technical Support Contact 0 ccc eee 16 WARRANTY STATEMENT 2200eeeeeeeeee 17 ETHERNET CABLE SPECIFICATIONS 19 LANMASTER T8 8 PORT HUB SPECIFICATIONS 21 Port Ethemet Renester Hub L INTRODUCTION This guide is intended for the system or network administrator responsible for installing and monitoring a TRANSITION Networks LANMaster T8 8 Port Ethernet Repeater Hub A working knowledge of local area network LAN operations including familiarity with communications protocols used on interconnected LANs is assumed The LANMaster T8 The TRANSITION Networks LAN Master T8 8 Port Ethernet Repeater Hub is a 10 Mb s network device that connects 1OBASE T and 10BASE 2 OR 10BASE 5 Ethernet segments into a single Ethernet network
10. 800 260 1312 or your local distributor 2 Port Ethemet Repeater Hub 16 4 OPERATION The LAN Master T8 requires no intervention beyond occasionally monitoring the Power and Status LEDs Monitoring Status LEDs Steady green Act ivity LED indicates connection of the LAN Master T8 to external AC powerr Blinking green Act ivity LED indicate network traffic Steady green Link Status LEDs indicate for each port the integrity of the network link at the RJ 45 connector Blinking green Link Receive LEDs indicate for each port reception of valid data 15 LAN Macter T8 2 ITE CONSIDERATIONS The site for the LAN Master T8 must provide AC power outlet for each LAN Master T8 Adequate ventilation Standard environmental conditions Isolation from electrical noise including radio transmitters and broadband amplifiers motors high power electrical lines or fluorescent light fixtures Additionally And The twisted pair cables should not run in the same conduit with power line cables Phone lines should be separated from data cables Flat or silver satin cables should not be used RJ 45 connected cables should be configured as crossover or straight through according to installation requirements Since the LAN Master T8 is an Ethernet repeater the entire installation should comply with the IEEE Ethernet 802 3 specification Port Ethemet Renester Hub 3 INSTALLATION To ins
11. ennung ihrer Konformit t Compliance Information UL Listed C UL Listed Canada CISPR EN55022 Class A FCC Regulations This equipment has been tested and found to comply with the limits for a class A digital device pursuant to part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipmentina residential area is likely to cause harmful interference in which case the user will be required to correct the interference at the user s own expense Canadian Regulations This digital apparatus does not exceed the Class A limits for radio noise for digital apparatus set out on the radio interference regulations of the Canadian Department of Communications European Regulations Waming This is a Class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Copyright Restrictions 1997 TRANSITION Networks All rights reserved No part of this work may be reproduced or used in any form or by any means graphic electronic or mechanical without written permission from TRANSITION Networks Trademark Notice All reg
12. he aggregate whether in contract tort or strict liability shall not exceed the amount paid to TN for the product directly related to the alleged damage However in no event shall TN have any liability to a customer or any third party for products manufactures according to the customer s specifications C Returm Procedure The customer must follow this procedure for the return of defective items 1 Locate the serial number s of the item s to be retumed 2 Determine the date the item s was received 3 Contact Transition Networks Technical Support to determine if the problem can be corrected on site If not and the product is covered by warranty then e Call the distributor directly or contact TN e Request a Retum Material Authorization RMA e Ship the item prepaid in original packaging to Transition Networks at the above address Include the RMA number on the outside of the carton and or on the Packing List e Include a copy of the RMA form e Include a copy of the original invoice or packing list if possible to expedite processing The item s may be shipped by the customer or the distributor e Transition Networks will repair or replace the unit at TN s discretion and cover the cost of the retum freight to the distributor or to the customer whichever requested the RMA number If the item s was received more than five years ago or if the item s is no longer covered by warranty for other reasons then e Call
13. icated wire pairs such as blue white amp white blue orange white amp white orange for the active pins LOBASE T cable for unlike devices such as hub to terminal device must be configured as straight through LOBASE T cable for like devices such as hub to hub or terminal device to terminal device must be configured as crossover Straight Through Cable Crossover Cable Twisted 1 1 Twisted 1 Pair 1 2 2 Pair 1 2 2 Twisted 3 3 Twisted 3 i 3 Pair 2 6 6 Pair 2 6 6 Connectors for unlike devices Connectors for like devices 2 Port Ethemet Repeater Hub 20 ETHERNET CABLE SPECIHCATIONS Maximum number of terminal devices on Ethernet network 1024 1OBASE 5 Cable and Connector Specifications The physical characteristics of the LOBASE 5 cable must meet or exceed IEEE 802 3 LOBASE 5 specifications LOBASE 5 Cable Characteristics Cable type RG8 Solid Coaxial ThickNet Impedance 50 Q 10 MHz Capacitance 26pF ft Maximum Cable Length 500 meters 1650 feet Maximum number network connections 100 Minimum distance between connections 2 5 meters 8 2 feet Terminate 10BASE 5 cable at one end using a 50 ohm terminator and at the other end using a 50 ohm terminator grounded to earth ground AUI Cable and Connector Specifications The cable is a special 4 pair individually shielded with an overall braided shield Maximum AUI Cable Length 50 me
14. ing AUI drop cable 1 Locate or build IEEE 802 3 compliant AUI drop cable 2 Connect AUI drop cable m e male connector to female AUI DTE connector on LAN Master T8 3 Connect AUI drop cable female connector to the AUI port on a 10BASE 5 cable transceiver or media attachment unit MAU l 50 ohm terminator 4 Verify that 10BASE 5 segment is terminated at both ends using 50 ohm terminators CONNECTING TO NETWORK USING TRANSCEIVER NOTE Refer to transceiver documentation for detailed specifications To connect to network using transceiver 1 Locate IEEE 802 3 compliant transceiver with male AUI connector and with required network media connector 2 Connect transceiver male AUI connector to the female AUI connector on LAN Master T8 3 Referring to transceiver documentation connect transceiver network media connector to the network media i 1 p TO FIBER COAX OR TWISTED PAIR 0 _ _ ee 13 LAN Macter T8 Installing LAN Master T8 at Site NOTE Mounting brackets screws and rubber feet are provided To install the LAN Master T8 on table or other flat surface 1 Carefully tum LAN Master T8 to side 2 Install four 4 rubber feet included with packing material e Separate rubber feet e Remove protective paper from se adhesive surface of rubber foot PN e e Position and secure each rubber af foot as shown se 3 Return LAN Master T8 t
15. istered trademarks and trademarks are the property of their respective owners LAN Macter T8 LOBASE 2 Cable Specifications The physical characteristics of the 1OBASE 2 cable must meet or exceed IEEE 802 3 1OBASE 2 specifications Cable Characteristics Cable type Stranded Coaxial RG58 ThinN et Impedance 50 Q 10 MHz Mutual Capacitance 24 pF ft 220 10 MHz Maximum Cable Length 185 meters 610 feet Maximum number network connections 30 Minimum distance between connections 0 5 meters 1 6 feet Terminate 10BASE 2 cable at one end using a 50 ohm terminator and at the other end using a 50 ohm terminator grounded to earth ground 1OBASE T Cable and Connector Specifications The physical characteristics of the LOBASE T cable must meet or exceed IEEE 802 3 LOBASE T specifications LOBASE T Cable Characteristics Category 3 wire or better is required category 5 wire is recommended Either shielded twisted pair STP or unshielded twisted pair UTP can be used DO NOT USE FLAT OR SILVER SATIN WIRE Category 3 Gauge 24 to 22 AWG Attenuation 28 dB 1000 10 MHz Differential Characteristic Impedance 100 Q 10 10 MHz Category 5 Gauge 24 to 22 AWG Attenuation 20 dB 1000 10 MHz Differential Characteristic Impedance 100 Q 10 10 MHz Maximum Cable Length 100 meters 330 feet LOBASE T Connector Characteristics The two active pairs in a LOBASE T network are pins 1 amp 2 and pins 3 amp 6 Use only ded
16. k of the LAN Master T8 LED INDICATORS EE S Steady green Act ivity LED indicates connection of the LAN Master T8 to external AC powerr Blinking green Act ivity LED indicate network traffic Steady green Link Status LEDs indicate for each port the integrity of the network link at the RJ 45 connector Blinking green Link Receive LEDs indicate for each port Se a ee reception of valid data 3 LAN Macer T8 5 MAINTENANCE WARNING DO NOT UNDER ANY CIRCUMSTANCES open and attempt to repair the LAN Master T8 Failure to observe this warming could result in personal injury or death from electrical shock NOTE Failure to observe the above warning will immediately void the warranty Fault Isolation If two network devices fail to communicate through the LAN Master T8 consider the following e Are the LEDs described in the previous section functioning properly Do network devices have Link Integrity enabled e Do network devices communicate when the LAN Master T8 is not installed between them e Is flat or silver satin wire used in site internal wiring e Areintemal wiring patch cords punch down blocks and wall jacks properly pinned or configured e Is the thinnet cable unbroken and properly connected e Are network interface cards properly configured Technical Support Contact For assistance in fault isolation and in maintaining the LAN Master T8 contact Technical Support
17. met Repeater Hub 12 Installing Twistecd Pair LOBASE T Cable To connect LOBASE T Cable to LAN Master T8 RJ 45 connectors 1 Locate or build 1OBASE T cables that are e 802 3 compliant See page 20 e with straight through connector cable configuration See page 7 e with male RJ 45 plug connectors at both ends 2 Connect male RJ 45 plug connector at one end of LOBASE T cable to LAN Master T8 RJ 45 jack connector 3 Connect male RJ 45 plug connector at other end of 1OBASE T cable to DTE terminal RJ 45 jack connector or to RJ 45 jack connector on other hub wall plate NOTE Hub to hub LANMaster T8 OILI connections MUST TRRERRRRR be from any port 1 8 on one LAN Master T8 hub to the X port on the other LAN Master T8 hub x 10203 4 5 6 7 8 11 LANMacter T8 NOTE The IEEE 802 3 standard states that the shield of a coax trunk cable shall make electrical contact with an earth reference once and only once per segment Failure to provide an earth ground to a LOBASE 2 or 10BASE 5 segment may allow ambient RF energy to couple onto the cable shield resulting in intermittent network failure More than one ground per segment may allow a poten
18. o upright position 1 Using mounting bracket as a guide with pencil or other marking device mark screw installation locations on wall or under shelf ee 2 Using Phillips screwdriver install two 2 eae screws included with packing material at installation locations marked on wall or under shelf 3 Using Phillips screwdriver install two 2 screws included with packing material through mounting bracket securely into 3 LANMaster T8 chassis 4 Carefully install mounting bracket with attached LAN Master T8 chassis to installed mounting screws aligning mounting bracket so that mounting screws are secured at narrow end of bracket mounting Port Ethemet Renester Hub Installing Network Cable LOBASE T Requirements STRAIGHT THRO UGH CROSSOVER CABLE CONNECTOR NOTE The 10BASE T cable and RJ 45 jacks for hub to terminal device connections must be configured as straight through The 1OBASE T cable and RJ 45 jacks for hub to hub connections must be configured as crossover The X port provided on the LANMaster T8 changes a physical straight through cable configuration to a logical crossover cable configuration for hub to hub connections Therefore ensure that all LOBASE T cable to be installed is straight through 12345678 aay 8 RJ 45 PLUG RJ 45 Jack Straight Through Cable at RJ 45 Plug Hub 0000ea nee PC transceiver NIC printer RJ 45 Male RJ
19. tall the LAN Master T8 e Unpack the LAN Master T8 e Install LAN Master T8 at site e Install Network Cable e Power the LAN Master T8 Direction is provided in the pages that follow Unpacking the LAN Master T8 The LAN Master T8 packing contents should include the following Item Part Number LAN Master T8 Hub E TBT HB 0804 includes mounting brackets and screws BNC T connector and terminator and adhesive backed rubber feet Power Supply Adapter 3532 3533 3534 3535 or 3536 depending upon power configuration in country where installed User s Guide 33022 LAN Macter T8 Powering the LAN Master T8 To power ON the LAN Master T8 1 Verify that the LAN Master T8 power supply adapter is the correct one for the site installation 2 AtLANMaster T8 back locate the power receptacle 3 Connect the LAN Master T8 power connector end of the power supply adapter to LANMaster T8 power receptacle 4 Plug external power connector end male of the power supply adapter into correct voltage AC wall socket 5 AtLANMaster T8 front verify that Act ivity LED is illuminated Port Ethemet Renester Hub 14 Installing Thicknet LOBASE 5 Cable The LAN Master T8 provides a female AUI connector at the back for network connection to 1OBASE 5 through an AUI drop cable or to 10BASE 2 1O0BASE T or 1OBASE FL through a transceiver CONNECTING TO 10BASE 5 USING AUI DROP CABLE To connect to 1OBASE 5 cable us
20. terations misuse accident Acts of God e g damage by floods lightning strikes Etc tampering improper maintenance improper installation or abuse If the user is unsure about the proper means of installing or using the equipment contact TN s free Technical Support or Network Design Services which can be reached by Telephone 1 800 LAN WANS or 612 941 7600 Fax 612 941 2322 E mail techsupport transition com Internet http www transition com THE ABOVE WARRANTY IS EXCLUSIVE AND EXTENDS ONLY TO PRODUCTS ASSEMBLED BY TRANSITION NETWORKS INC TO THE EXTENT PERMITTED BY LAW TN DOES NOT MAKE AND DISCLAIMS ALL OTHER WARRANTIES EXCEPT TITLE EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF DESCRIPTION MERCHANTIBILITY FITNESS FOR A PARTICULAR PURPOSE OR NON INFRINGEMENT AND ANY WARRANTY BASED UPON PRIOR WRITTEN OR ORAL REPRESENTATIONS REGARDING SUCH PRODUCTS MADE BY TN ITS EMPLOYEES AGENTS OR REPRESENTATIVES B Limitations and Exclusions If the customer believes any goods sold by TN are defective and within the warranty period the following general procedure will be followed 1 Locate the serial number and delivery date of the item s 2 Notify TN within the warranty period 3 TN will promptly issue a retum authorization form for the goods 4 Upon receiving the form the customer will promptly return the item s at customers own expense shipped prepaid to the distri butor from which it was purchased
21. ters 165 feet AUI Connector Characteristics AUI Port Male DB 15 with locking posts AUI Connection Cable shell must be grounded Connector Legend 1 Logic Ref 6 Power Retum 11 Logic Ref 2 Collision 7 N C 12 Receive 3 Transmit 8 Logic Ref 13 Power 4 Logic Ref 9 Collision 14 Logic Ref 5 Receive 10 Transmit 15 N C 1LOBaseFL Cable and Connector Specifications The physical characteristics of the 10BaseFL cable must meet or exceed IEEE 802 3 10BaseFL specifications LOBaseFL Cable Characteristics Fiber Optic Cable Recommended 62 5 125 um multimode fiber Optional 100 140 um multimode fiber 85 125 um multimode fiber 50 125 um multimode fiber Fiber Optic Transmitter Power Average power 15 0 dBm Peak power 12 0 dBm 1dBm Fiber Optic Receiver Sensitivity Average sensitivity 27 4 dBm Bit error rate lt 10 10 Maximum Cable Length 2000 meters 6500 feet 10BaseFL Connector Characteristics ST type connectors SMA type available upon request 19 LANMasder T8 Table of Contents 1 INTRODUCTION 2 0c The LANMasterT8 0 0 0 eee eee ee ee eee 1 Networking the LANMasterT8 200 00 000 2 Connectors Switch Indicators 00 cc eee eee 3 2 SITE CONSIDERATIONS 0 ee A 3 INSTALLATION 0002 ee D Unpacking the LAN Master T8 202 0000005 5 Installing LAN Master T8 at Site 2 6 Installing Network Cable 0 0000 00 eee eee 7
22. tial difference between the two grounds to cause current to flow damaging components And since Ethernet senses collisions on LOBASE 2 and 10BASE 5 cable by monitoring the shield voltage level more than one ground could cause false collisions that result in repeater ports partitioning and network traffic beyond the partition ceasing 1LOBASE 2 Requirements Thinnet LOBASE 2 cable daisy chains network devices With a maximum segment length of 185 meters and a minimum segment length of 0 5 meters the coaxial cable must have a 50 ohm characteristic impedance Standard BNC connectors and T s provide access to the media typically connected directly to the back of network interface cards eliminating the need for an external transceiver Only 30 transceivers can be installed onto a 1OBASE 2 Ethemet segment spaced at least 0 5 meters apart The first and last device in the daisy chain must be terminated with a 50 ohm terminator grounded to earth ground at one end LOBASE 5 Requirements Thicknet LOBASE 5 cable is the original Ethernet With a maximum segment length of 500 meters and a minimum segment length of 1 5 meters the coaxial cable must have a 50 ohm characteristic impedance As many as 100 transceiver can be installed onto a LOBASE 5 Ethernet segment spaced at least 2 5 meters apart There must be a type N 50 ohm terminator installed at each end of a thick coaxial cable segment Port Ethemet Renester Hub 8
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