INTRODUCTION1-9TPIMs – Media-Flexible Trunk Cable ExpansionCabletron Systems hot-swappable, active TPIMs are designed forinstallation in the MicroMMAC-T’s Ring In and Ring Out (RI/RO)receptacles. Each TPIM provides a specific media interface: STP, UTP,and fiber (single-mode and multimode), allowing you to select the mediatype that meets your network’s trunk cabling requirements. SeeSection 4.4 for TPIM setup and installation instructions and Appendix Bfor TPIM operational specifications.Port Daughterboard – Port Density UpgradeYou can increase the lobe-port count from 12 to 24 for theMicroMMAC-22T UTP lobe-port model and the MicroMMAC-42T STPlobe-port model by installing the 12-port daughterboard designed for eachmodel. The daughterboard installs in the MicroMMAC-T front-panelaperture. See Section 3.2.4 for installation instructions.1.2.10 Management Information Base (MIB) GroupsMicroMMAC-T’s MIBs are listed as follows:Standard MIBs• MIB-2 (RFC 1231)• IETF RMON Groups and Token Ring Extensions (RFC 1757 and RFC1513)Cabletron Enterprise MIBs• Download• MIB-2 Extensions• DOT 5 Logical and Physical• UPS (Uninterruptible Power Supply)• Device• DLM (Distributed LAN Monitor)• PIC MIB (Product Information Chip MIB)• Chassis MIBSee the MicroMMAC-T Local Management Guide for information abouthow to use the LM MIB Navigator screen to access MIB objects.
