Pelco C2622M manual Meaning Possible Cause Corrective Action Optic Fault LED

Table B. Troubleshooting with Front-Panel Indicators (Continued)

Indicator Color	Meaning	Possible Cause		Corrective Action
	Optic Fault LED (		)
Green	The optical signal is	—		No action required.
	being received and
	laser is operating
	properly.
Red	The optical signal is	Remote module is not		Check power connections.
	not being received.	powered on.		Replace power supply if
				necessary.
		Fiber optic cable is not		Check fiber optic
		connected.		connections.
		Fiber optic cable connectors		Clean, polish, or replace fiber
		are dirty or are damaged.		optic cable connectors as
				necessary.
		Fiber optic cable is		Replace cable.
		defective.
		Optical dB losses in the		Check for problems with the
		fiber optic installation		fiber optic installation, for
		exceed the optical power		example, excessive dB losses
		budget specification stated		in connectors, splices, patch
		in Specifications on		panels, cables, and so on.
		page 24.
		Optical dB losses in the		Contact Product Support at
		fiber optic installation meet		1-559-292-1981.
		the optical power budget
		specification stated in
		Specifications on page 24;
		however, a module is
		defective.
Flashing red	Laser has shut down.	Module is operating in		Ensure that module operates
		extreme environmental		according to operating
		conditions; for example,		conditions stated in
		operating temperature is		Specifications on page 24,
		below or above recom-		and then cycle the power.
		mended range as stated in		If problem persists, contact
		Specifications on page 24.		Product Support at
				1-559-292-1981.
		Laser has reached end of		Cycle the power. If problem
		life.		persists, contact Product
				Support at 1-559-292-1981.
				(Continued on next page)

18 C2622M (2/07)