Cabletron Systems STHI Manual De Usuario

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Page A-1
APPENDIX A
TPIM Specifications
A.1 Overview
Token Ring Port Interface Modules (TPIMs) are media adapter cards 
which extend network connections onto a variety of media. When 
installed into Ring In and Ring Out ports, TPIMs support the expansion of 
a Token Ring from the host module into other devices. Each TPIM has a 
different type of cable port to support a different media connection. Table 
A-1 lists each available Cabletron Systems TPIM and its respective 
connector.
The LNK (Link) LED on the face of each TPIM indicates the following:
Green - Inserting.
Red (TPIM-T1/T2/T4 only) - No Link (Autowrapped)
Off - No Link (Wrapped or Disabled)
All Cabletron TPIMs are interchangeable and hot-swappable. 
A.2 Twisted Pair TPIM Pinouts
Each TPIM that supports Twisted Pair cabling has two operating modes: 
Ring In / Ring Out and Station. For use with STHI, the TPIM is switched 
to operate in Ring In/ Ring Out mode. The pinouts for TPIMs in station 
applications are different from pinouts for Ring In / Ring Out 
applications. Illustrations of the Ring In / Ring Out pinouts follow.
Table A-1.  TPIMs and their Corresponding Media
TPIM
Media Type
Connector
TPIM-T1
Shielded Twisted Pair
DB9
TPIM-T2
Unshielded Twisted Pair
RJ45
TPIM-T4
Shielded Twisted Pair
RJ45
TPIM-F2
Multimode Fiber Optic
ST
TPIM-F3
Single mode Fiber Optic
ST