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TOKEN RING FIBER EXTENDERS
6
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Chapter
Page
1.
Specifications ................................ ................................ ............................. 8
2.
Introduction ................................ ................................ ................................ 9
2.1
Product Overview ................................ ................................ ................ 9
2.2
Features................................ ................................ .............................. 9
2.2.1
Drive Distances ................................ ................................ ............. 9
2.2.2
Universal Copper Port................................ ................................ .... 9
2.2.3
Station Count................................ ................................ ............... 10
2.2.4
Ergonomics................................ ................................ ................. 10
2.2.5
Power Supply ................................ ................................ .............. 10
.
Overview Of Operating Modes ................................ ................................ ... 11
3.1
Variants of Token Ring................................ ................................ ........ 11
3.1.1
Phantom Current Mechanisms ................................ ..................... 11
3.1.2
Frequency Lockout................................ ................................ ...... 12
3.1.3
LCL112A-TR Trunk Operation................................ ...................... 12
3.1.4
LCL112A-TR Lobe Operation ................................ ....................... 13
3.1.5
Pair Swapping during Auto-negotiation................................ .......... 13
3.1.6
Main Ring (RI/RO) Operation ................................ ........................ 14
4.
Typical Applications................................ ................................ ................... 15
4.1
Fiber Lobe Link Station to Concentrator ................................ ............... 15
4.2
Fiber Trunk Link Between Stations ................................ ...................... 15
4.3
Fiber Trunk Link Between Concentrators ................................ ............. 16
4.4
Ring In to Ring Out................................ ................................ .............. 16
4.5
Single-mode LCL112A-TR to LCL161A/LCL162A................................ 17
5.
Switch Settings ................................ ................................ ......................... 18
6.
Installation ................................ ................................ ................................ 20
7.
Troubleshooting................................ ................................ ........................ 21
8.
Diagnostic LEDs................................ ................................ ........................ 24
9.
Accessories................................ ................................ .............................. 25
10. Glossary................................ ................................ ................................ ... 26
11. APPENDIX A: Switch Convention ................................ .............................. 27