Cabletron Systems SEHI100TX-22 - Manual (Page 17)

Stackable Capabilities
SEHI100TX User’s Guide 2-3
LANVIEW LEDs
Cabletron Systems LANVIEW status monitoring and diagnostics system
is a troubleshooting tool that helps in diagnosing power failures,
collisions, cable faults, and link problems. The LANVIEW LEDs are
conveniently located on the SEHI front panel.
RESET Button
Resetting the hub with the front panel RESET Button reboots the SEHI
and initializes the processor. Resetting the SEHI also resets all of the SEH
non-intelligent hubs in the stack.
Local Management
Manage the SEHI and its attached segments through Local Management
on the SEHI. Local Management provides full packet and error statistics
for the entire stack, individual device, or individual port. Access Local
Management by attaching a DEC VT320 terminal or a PC using VT320
emulation software to the RJ45 COM port on the SEHI. Cabletron
Systems provides a UTP console cable with RJ45 connectors at each end,
adapters for DB9 or DB25 connections and an instruction sheet with
adapter pinout information with the SEHI. Chapter 7,
Local
Management , provides detailed information on setting up and managing
your network through Local Management.
2.3 STACKABLE CAPABILITIES
The SEHI100TX-22 intelligent hub is designed to manage a stack of up to
four Cabletron Systems SEH100TX-22 non-intelligent hubs. The SEHI is
placed at the bottom of the stack. It manages all SEH hubs in the stack
and provides full packet and error statistics for the entire stack, individual
device, or individual port.
Stack up to four SEH non-intelligent hubs with one SEHI using the
Cabletron Systems external HubSTACK Interconnect cables provided
with each SEH. Stackable configurations make it possible to maintain
only one IEEE repeater hop while providing up to 120 ports. Hubs can be
added or removed from the stack without having to power down the entire
stack.