Patton electronic 2616RC user manual LED definitions Continued

Model 2616RC T-DAC User Manual 5 • Troubleshooting and maintenance

Table 7. LED definitions (Continued)

LED	Location	Color	Status	Meaning
SYSTEM	Front	Green	Flash-	The Model 2616RC is operating normally. No action rec-
	panel		ing	ommended.
			Off	The Model 2616RC is not functioning properly. As soon
				as possible, unplug both power cables from the Model
				2616RC, wait 30 seconds, then plug the cables back
				into the Mode 2616RC to see if the problem disappears.
				If the SYSTEM LED remains lit after the Model 2616RC
				completes the power-up cycle, contact Patton Technical
				Support to determine whether the T-DAC needs to be
				replaced.
ETHERNET	Front	Green	On solid	Link status is nominal for the Ethernet port. No action recom-
	panel			mended.
			Off	• A valid link has not been detected.
				• Verify that an Ethernet cable is plugged into the hub, switch,
				or workstation and the Ethernet port of the Model 2616RC.
				• Verify that the hub, switch, or workstation is powered on.
				• Verify that the correct straight-through or cross-over cable is
				being used, depending on whether you are connecting to a
				workstation (PC), hub, or switch.
				• Replace the cable. If the problem still exists, contact Patton Tech-
				nical Support to determine if the T-DAC should be replaced.
CLK SOURCE	Front	Green	On solid	The 2616RC is set as the Master Clock source. No action rec-
	panel			ommended.
			Flashing	The 2616RC is set as the secondary clock source. No action
				recommended.
			Off	The 2616RC is set as the slave, getting its clock from the H.110
				Bus. No action recommended.
CLK ERROR	Front panel	Yellow	On solid	Master Clock source has been lost and the 2616RC is using the
				secondary source for its clock.
			Flashing	Master Clock source and the Secondary Clock source have been
				lost and the 2616RC is using its internal crystal for its clock.
			Off	No clock errors currently detected.
				No action recommended.
TEST MODE	Front panel	Green	On solid	One or more T1/E1 ports or T1/E1 ports is in test mode.
				No action recommended.
			Flashing	One or more of the T1/E1 ports or the T1/E1 ports is in test
				mode and errors have been received.
			Off	None of the T1/E1 ports is operating in test mode.
				No action recommended.
T1/E1	Front Panel	Green	On solid	The ports are activated, linked, and operating normally.
CONNECTIONS
			Flashing	One or more T1/E1 ports have errors.
(LEDs 1–16)
			Off	No T1/E1 ports have been configured to establish a link.
				See Chapter 3, “Configuring the T-DAC for operation” on
				page 31 to configure the T1/E1 ports.

Fault analysis 63