3Com TR manual RJ-45 Ports, Front Panel LEDs, LCD Display Buttons

RJ-45 Ports

12 RJ-45 ports support unshielded Twisted Pair (UTP) or Shielded Twisted Pair cabling (STP) at 4 Mbps or 16 Mbps wire speed.

All 12 ports default to adapter mode for connection to a Token Ring hub. Additionally, ports 1 through 4 can be configured to hub mode to allow direct attachment of workstations or servers.

Front Panel LEDs

The LEDs on the front panel of the Switch 2000 TR reflect the current status of the switch. Use Table 1-2 to interpret the LED states.

Table 1-1 LED States

LED Name	Color	Indicates
Packet LEDs	Green	Traffic present
	Flashing yel-	Error frames present
	low
Status LEDs	Green	Port inserted
	Yellow	Partitioned via management
	Flashing yel-	Auto Error Partition
	low
	Off	Port not inserted
Option Slot	Green	Presence of Option card
Sta-
tus/Packet
	Flashing green	Activity on link
Cascade	Green	Cascade connection present
Status/
Packet

		The Front Panel	1-7
Table 1-1	LED States
LED Name	Color	Indicates
	Flashing green	Activity on link
Power	Green	Power ON
	Yellow	RPS w/alarm
MGMT	Off	Operation normal
	Flashing green	(slow) Software download
	Flashing green	(fast) Power On Self Test
		(POST)
	Yellow	POST has failed

LCD Display Buttons

Use the LCD display on the front panel of the Switch 2000 TR to select ports, change system parameters, receive status information, and set the Unit ID num- ber.

■Right and Left buttons—Change or move digits or go to the previous menu.

■Up and Down buttons—Scroll up or down in specific menu and increase or decrease digit value.

■Enter button—Enter a menu or use to enter the edit mode.

I

ENTER

Figure 1-4LCD Display Buttons