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Allied Telesyn International AT-MR125D, User Manual

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Allied Telesyn International AT-MR125D User Manual Download Page 1

 

PN 613-10368-00 Rev A

951026

CentreCOM Two-Port Ethernet

Micro Repeater

Model AT-MR125D 

User Manual

POWER

MR125D

IEEE 802.3 MICRO REPEATER

PORT 1: 10 BASE 2

ON LINE

COLLISION

TRANSMIT

RECEIVE

ON LINE

TRANSMIT

RECEIVE

PORT 2: 10 BASE 2

COLLISION

 

MR125DBook  Page 1  Wednesday, August 21, 1996  4:24 PM

Summary of Contents for AT-MR125D

Page 1: ...Ethernet Micro Repeater Model AT MR125D User Manual POWER MR125D IEEE 802 3 MICRO REPEATER PORT 1 10 BASE 2 ON LINE COLLISION TRANSMIT RECEIVE ON LINE TRANSMIT RECEIVE PORT 2 10 BASE 2 COLLISION MR12...

Page 2: ...anadian Interference Causing Equipment Regulations Cet appareil num rique de la classe A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada SAFETY LIGHTNING DANGER DANGER...

Page 3: ...e form l ADVARSEL Ventilations bninger m ikke blokeres og skal have fri adgang til den omgivende luft i rummet for afk ling Betjeningstemperatur Dette apparat er konstrueret til en omgivende temperatu...

Page 4: ...roidissement Temp rature De Fonctionnement Ce mat riel est capable de tol rer une temp rature ambiante maximum de 40 degr s Celsius Pour Tous Pays Installer le mat riel conform ment aux normes lectriq...

Page 5: ...sima di 40 gradi centigradi Tutti I Paesi installare il prodotto in conformit delle vigenti normative elettriche nazionali UTSTR LT ENERGI Dette kommersielle produktet er blitt testet og funnet v re i...

Page 6: ...de acordo com as normas nacionais e locais para instala es el tricas ENERGIA RADIADA Este producto comercial ha sido probado y cumple con las normas requeridas en los EE UU para un dispositivo de Clas...

Page 7: ...HORISONTALL GE VERTIKALMONTERING f r EJ UTF RAS utan att ett Allied Telesyn specialkonstruerat vertikalt monteringschassi anv nds VARNING Luftventilerna f r ej blockeras och m ste ha fri tillg ng till...

Page 8: ...cators 3 Troubleshooting 3 Configurations 4 IEEE 802 3 Quick Primer 6 AUI Drop Cables 6 10BASE T 6 Thin 10BASE2 Ethernet 6 Thick 10BASE5 Ethernet 6 Propagation 7 Four Repeater Rule 7 Glossary 9 Techni...

Page 9: ...ater function to be brought to the desktop or used in a wall mount installation Network diagnostic indicators are provided on the front of the micro repeaters to aid in troubleshooting and fault isola...

Page 10: ...repeater and void your warranty Operation The CentreCOM Micro Repeaters re time the Ethernet signal and regenerate the Ethernet packet and preamble The micro repeaters also count the number of consec...

Page 11: ...titioned Collision Indicates a collision detected on that port Receive This indicator will flash whenever a packet is received on that port Brief flashes indicate low traffic levels Transmit Indicates...

Page 12: ...segment With terminators in place measure the resistance of the cable from the male connector of a BNC T Touch one of the meter s probes to the inner pin and the other probe to the outside of the BNC...

Page 13: ...be disabled OFF on the LAN repeater AT MR125D 10 BASE 2 PORT 2 DC INPUT 10 BASE 2 PORT 1 MR125D IEEE 802 3 MICRO REPEATER OFF ON TERMINATOR OFF ON TERMINATOR 50 Terminator 50 Terminator Thin Ethernet...

Page 14: ...tion crossing TD and TD with RD and RD signals No other attachments are allowed along the length of UTP wire however wiring patch panels and punch down blocks are allowed for interconnecting segments...

Page 15: ...delay That is a 50 meter 164 ft AUI cable has a maximum propagation delay of 257 ns The propagation delay of a cable is dependent on the length and velocity factor of the cable type Four Repeater Rul...

Page 16: ...nection from an MAU transceiver to a DTE typically a workstation consisting of a 15 conductor twisted pair cable of 50 meters 164 ft maximum length BNC SERIES A 10BASE2 thin coax connector with push o...

Page 17: ...mponent to the output Usually measured in nanoseconds IEEE 802 3 has specific propagation delay maximums for computing propagation budgets when designing a LAN Cable length plays a major role in propa...

Page 18: ...in specifications and other information contained in this document without prior written notice The information provided herein is subject to change without notice In no event shall ATI be liable for...

Page 19: ...Conditions List the steps that led up to the problem ________________ ______________________________________________________________________ __________________________________________________________...

Page 20: ...____________ ______________________________________________________________________ ______________________________________________________________________ _____________________________________________...

Page 21: ...BNC T 3 C Collision 5 D Data Terminal Equipment DTE 8 E External Power Supply Micro Repeaters 4 F Four Repeater Rule 9 L LEDs 3 M Media Access Units MAU 3 O On Line 5 P Power 5 propagation delay 9 R...

Page 22: ...Kingdom United Kingdom Denmark Norway Sweden Finland Iceland 0 800 20 40 40 44 1 865 390 002 Japan 81 3 3443 5640 81 3 3443 2443 Asia Singapore Taiwan Thailand Malaysia Indonesia Korea Philippines Chi...

Page 23: ...Columbia Tel 604 244 0678 Fax 604 270 3644 Germany Berlin Tel 49 30 435 9000 Fax 49 30 435 70650 Freising Tel 49 8161 62 002 Fax 49 8161 68 374 For Sales Information The Netherlands Schiphol Tel 31 20...

Page 24: ...n is subject to change without notice In no event shall Allied Telesyn be liable for any incidental special indirect or consequential damages whatsoever including but not limited to lost profits arisi...

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