Cabletron Systems CSX1200, CSX1000 manual Receive LEDs, Off

LED INDICATORS

WAN LED Indicators

Receive	LEDs
state	color
port enabled, no activity	off
port enabled, activity	yellow (blinking)

Each Ethernet port also has a Link LED. This LED provides connectivity information for a specific Ethernet port. It glows green when the link is up.

Link	LEDs
state	color
power off or failure	off
link, active	green

There is one Collision LED for the hub module. It is located between the 7th and 8th hub ports. This LED provides collision information for the entire hub. It blinks red when a collision occurs.

Collision	LED
state	color
normal	off
collision	red (blinking)

NT1 STATUS LEDS (CSX1200-U4-MOD ONLY)

The NT1 Status LEDs are located between the S/T and U-interface jacks for each port on the CSX1200-U4-MOD’s back panel. These LEDs are convenient troubleshooting tools to help diagnose NT1 and related link problems on a port-by-port basis.

NT1 Status	LEDs
state	color
U and S/T active (ON)	green
OFF	(not lit)
U active, S/T inactive	green
	(slow blink; 1 per second)
System Initialization	green
	(fast blink, 8 per second)

Workgroup Remote Access Switch 421