Cabletron Systems SEH-34 - Manual (Page 11)

INTRODUCTION
Page 1-4
LANVIEW LEDs
Cabletron Systems’ LANVIEW Status Monitoring and Diagnostics
System is a troubleshooting tool that helps you diagnose power
failures, collisions, cable faults, and link problems. The LANVIEW
LEDs are conveniently located on the front panel.
1.5 STACKABLE CAPABILITIES
The SEH is a non-intelligent hub designed to be managed by either
the Cabletron Systems SEHI intelligent hub or the Cabletron Systems
MicroMMAC intelligent hub. Intelligent hubs serve as the logical “top”
of the stack. They manage all SEH hubs in the stack providing full
packet and error statistics for the entire stack, individual device, or
individual port. You can stack together up to five SEHs for a
non-managed stack or one intelligent hub and up to four SEHs for a
managed stack. You can also add or remove hubs from the stack
without having to power down.
1.6 OPTIONAL FEATURES
The following features are not included with the SEH but can be
purchased separately from Cabletron Systems.
Ethernet Port Interface Modules (EPIMs)
EPIMs let you expand your network through a variety of media.
Cabletron offers the EPIMs shown in Table 1-1.
Table 1-1. EPIMs
EPIM Media Type Connector
EPIM-A AUI DB15 (Female)
EPIM-C 10BASE-2 Thin Coaxial BNC
EPIM-T 10BASE-T Unshielded
Twisted Pair RJ45
EPIM-X Standard Transceiver DB15 (Male)
EPIM-F1 Multimode Fiber SMA
EPIM-F2 Multimode Fiber ST
EPIM-F3 Single Mode Fiber ST