Cisco Systems GSR12-CSC= Safety Guidelines, Lower Card Cage Status LEDs, Safety with Equipment

Safety Guidelines

Lower Card Cage Status LEDs

There are no status LEDs on the clock and scheduler card or switch fabric card, and the lower card cage slots are hidden behind the air filter. Status for the lower card cage slots is displayed on five pairs of LEDs located on the alarm card (installed in the rightmost slot in the upper card cage). Each pair of LEDs displays the status of one slot in the lower card cage (refer to Figure 2) as follows:

•Enabled—When this green LED is on, the card installed in that lower card cage slot is recognized by the system and functioning correctly. When the LED is off, either the slot is empty or the card installed in the slot is faulty.

•Fail—When this red LED is on, a fault has been detected in the card installed in that lower card cage slot. During normal operation, the fail LED should remain off.

Figure 2 Lower Card Cage Status LEDs on the Alarm Card

Critical, major, and
minor alarm LEDs		Pin 1
		ALARM 1
CRITICAL	ACO/LT
MAJORMINOR

		CSC		SFC
FAIL
ENABLED	0	1	0	1	2

Pin 1					H10900
ALARM 2		CSC		SFC
FAIL
ENABLED	0	1	0	1	2
					ALARM

Pin 25	Pin 25	Clock and scheduler card
Audio alarm
		and switch fabric card LEDs
cutoff switch

CRITICALMAJORMINOR

Safety Guidelines

Before you begin this installation, review the safety guidelines in this section to avoid injuring yourself or damaging the equipment.

In addition, review the safety warnings listed in the document Regulatory Compliance and Safety Information for the Cisco 12012 Gigabit Switch Router (Document Number 78-4347-xx) that supports your Cisco 12012 before installing, configuring, or maintaining the router.

Safety with Equipment

The following guidelines will help ensure your safety and protect the equipment. This list is not inclusive of all potentially hazardous situations, so be alert.

•Always disconnect all power cords and interface cables before moving the system.

•Keep tools and components away from walk areas.

•Do not work alone if potentially hazardous conditions exist.

•Do not perform any action that creates a potential hazard to people or makes the equipment unsafe.

•Carefully examine your work area for possible hazards such as moist floors, ungrounded power

extension cables, and missing safety grounds.

4Cisco 12012 Gigabit Switch Router Switch Fabric Cards Replacement Instructions