User guide

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-8
Overview
Writer:
Chris Seiter
Project:
Compaq Netelligent 2724/2824 Dual-Speed Hub User Guide
Comments:
299440-001
File Name:
2824_1.DOC
Last Saved On:
6/27/97 4:02 PM
LED Status and Description
10/100 SW (Switch)
Flashing Yellow
 Internal 10/100 switch problems, such as buffer
overflows, address table full
Green
 Internal 10/100 switch is enabled
OFF
 Internal 10/100 switch is disabled; 10 Mb/s segment is isolated
100 BP (Backplane)
Green
 100 Mb/s connected to a 100 Mb/s backplane
OFF
 100 Mb/s isolated from the 100 Mb/s backplane
ALT (Alternating)
Green
 Port LEDs alternate between 10 Mb/s and 100 Mb/s status
OFF
 Alternating mode off
Mode button
Disables the alternating mode and selects 10/100 port LED display
100 MBPS (Management Port)
Green
 Port LEDs show 10 Mb/s status
OFF
 Port LEDs do not show 10 Mb/s status
10 MBPS (Management Port)
Green
 Port LEDs show 100 Mb/s status
OFF
 Port LEDs do not show 100 Mb/s status
Smart Uplink Module (SUM-TX)
Activity
Flashing Green
 100 Mb/s traffic occurring on the module
Green
 Link active, no traffic on the module
OFF
 No link
Collision
Flashing Yellow
 Collisions on the module
OFF
 No collisions
Serial COM Port
The 2824 (managing) hub contains a serial COM port that uses a DB9
connector with a standard AT pinout. This port lets you perform the following
operations:
■
XMODEM firmware downloads
■
VT100 console interface for basic management and initially setting the
IP address
■
SLIP (Serial Line Internet Protocol) transfers, including remote (out-of-
band) management, SNMP, Telnet, and TFTP firmware downloads.