1000Base-X Sfp Ports; Console Port; Unit Led; Leds - 3Com 5500-EI PWR Getting Started Manual

16 C 1: I
HAPTER NTRODUCING THE

1000BASE-X SFP Ports

Console Port

Unit LED

LEDs

S S 4 S
UPER TACK WITCH
SFP (Small Form Factor Pluggable) ports support fiber Gigabit Ethernet
short-wave (SX), long-wave (LX), long-haul (LH70) and copper (T) SFP
Transceivers in any combination. This offers you the flexibility of using SFP
transceivers to provide connectivity between the Switch and remote 1000
Mbps workgroups or to create a high capacity aggregated link backbone
connection.
The default state for these ports is auto-negotiation enabled, where the
speed, duplex and flow control modes are negotiated. As the speed and
duplex modes are fixed by the media type, only the flow control is
negotiated with the link partner. Alternatively, auto-negotiation can be
disabled (except 1000BASE-T which auto-neogtiation is mandatory) and
the flow control setting can be manually configured.
The console port allows you to connect a terminal and perform remote or
local out-of-band management. As the console port on the Switch is an
RJ-45 port, you will need to connect an RJ-45 to DB9 converter cable to a
standard null modem cable in order to connect a terminal.
The Unit LED is a seven segment display visible on the front of the Switch.
The Unit LED can be used to indicate the unit number in a fabric, POST
test ID and software upgrade information. In the unlikely event of a
hardware fault occurring, the Unit LED may be used to help diagnose the
problem. For information on using the Unit LED for problem solving, see
"Solving Problems Indicated by LEDs"
Table 4 lists LEDs visible on the front of the Switch, and how to read their
status. For information on using the LEDs for problem solving, see
"Solving Problems Indicated by LEDs"
Table 4 LED Behavior
LED Color
Unit LED
Green
Green flashing
Green flashing 'f' There has been a fan failure.
5500 F
AMILY
on page 62
on page
Indicates
Power On Self Test (POST) is in progress. During POST a the
test ID number appears in the Unit LED (seven segment
display).
or
Software download is in progress. During software
download, a clockwise cycling bar appears in the Unit LED.
The Switch has failed POST. The Unit LED flashes the
number of the test that has failed.
62.