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Hardware overview 18
Model 2616RC T-DAC User Manual 1 • Introduction
LED display
Front panel LEDs (figure 3 on page 17) display the status of the WAN ports, the T1/E1 ports, the Ethernet
LAN port, power, and the alarms. The LEDs are described in table 3.
Table 3. LED definitions
LED Color Status Meaning
POWER Green On solid Power is being applied. No action recommended.
Flashing The 2616RC has detected a power failure on a power bus.
Off No input power is being applied.
CPU FAIL Red On solid CPU is unable to load the software from FLASH to RAM for operation.
Off The CPU is operating normally.
ALARM Yellow On solid A minor alarm condition has been detected.
Flashing A major alarm condition has been detected.
Off The Model 2616RC is operating normally.
SYSTEM Green Flashing The Model 2616RC is operating normally.
Off The Model 2616RC is not functioning properly.
ETHERNET Green On solid Link status is nominal for the Ethernet port. No action recommended.
Off
A valid link has not been detected.
CLK SOURCE Green On solid The 2616RC is set as the Master Clock source.
Flashing The 2616RC is set as the secondary clock source.
Off The 2616RC is set as the slave, getting its clock from the H.110 Bus.
CLK ERROR 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.
TEST MODE Green On solid One or more T1/E1 ports or T1/E1 ports is in test mode.
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.
T1/E1
CONNECTION
(LEDs 1–16)
Green On solid The port is activated, linked, and operating normally.
Flashing The port is activated but not linked or in an error state.
READY Blue On Card ready for removal from Patton ForeFront chassis.
Off Card not ready for removal from Patton ForeFront chassis.