Cabletron Systems MICROMMAC-22T, 42T manual Ring Speed Switch, Flash Eeprom, Lanview LEDs, TPIMs

INTRODUCTION

re-time all data. Cabletron offers a variety of TPIMs for RI/RO trunk connections as shown in Table 1-1.

Table 1-1. TPIMs

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

Ring Speed Switch

Use the Ring Speed Switch to select either 4 or 16 Mbps ring speed.

Flash EEPROM

The firmware image on the MicroMMAC-T can be upgraded by Flash EEPROM downloads via Cabletron System’s Remote LANVIEW/Windows version 2.3 or later, or via any server supporting BOOTP or TFTP protocols.

LANVIEW LEDs

Cabletron Systems’ LANVIEW LEDs, located on the face of the MicroMMAC-T, provide an effective monitoring and troubleshooting tool to help diagnose power failures, RI/RO status, cable faults, ring speed, link problems, and network activity. See Section 5.1 for information about using LEDs.

Cabletron’s Distributed LAN Monitor Mode

To manage a network that includes multiple subnets, remote network management stations need to query multiple management devices, increasing the data traffic on the network. Network managers can reduce the amount of management related traffic by setting the MicroMMAC-T into Distributed LAN Monitor mode via a remote management package. The MicroMMAC-T in DLM mode will collect management data from the

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