Cisco Systems 11500 Series manual 2describes the SCM LEDs and their indications

Chapter 2 Cabling and Troubleshooting the CSS

Cabling the CSS 11503 and CSS 11506 Modules

Table 2-2describes the SCM LEDs and their indications.

Table 2-2 Switch Control Module LED Descriptions

LED Name	Color	State	Indicates
Status (left)	Green	Solid	The module is ready.
		Variable	Disk activity is occurring.
		blink
		Slow blink	Another CSS module failed.
	Red	Solid	The module failed the power-up
			self test during the boot process.
		Slow blink	The module failed.
	No color	Off	The module failed and has no
			power.
Status (right)	Amber	Fast blink	The module is running power-up
			self test.
		Slow blink	The module is offline and active.
		Solid	The module is online and not
			active (passive SCM).
		Off	See the left status LED for
			indication.
Link/Act	Green	Off	There is no link.
for the Ethernet
		On	The link is established but there is
Management Port
			no activity.
		Blinking	The link is established with
			transmit or receive activity.
Link	Green	Off	There is no link.
for each Gigabit
		On	The link exists and
Ethernet Port
			synchronization is achieved.
		Blinking	The link is established with
			transmit or receive activity.

	Cisco 11500 Series Content Services Switch Hardware Installation Guide
78-13884-06		2-13