Juniper CTP151 Platform, Hardware Manual, Page: 17 / 104

NOTE: Only the ALM and SYS LEDs are functional on the chassis. The other LEDs are not used
and are always off.
Figure 3 on page 6 shows the chassis status LEDs in a CTP151.
Figure 3: Chassis Status LEDs in a CTP151
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Chassis status LEDs (ALM, SYS, MST, PH, and SLOT)
Table 3 on page 6 describes the functional chassis status LEDs in a CTP151, their colors and states, and
the status they indicate. You can view the colors of the LEDs remotely through the CLI by issuing the
operational mode command show chassis led.
Table 3: Chassis Status LEDs in a CTP151
Description Color/State LED Label
The device is powered off or is halted. Off SYS (System)
The device is running, but the ctpd process has not started up yet. Green Blinking
The ctpd process has started up successfully, and the device is
usable.
Green On Steadily
The device is not too hot, and the ctpd process is detected and
operational.
Off ALM (Alarm)
The device temperature has reached the yellow alarm threshold,
and the ctpd process is detected and operational.
Amber/Yellow
The device temperature has reached the red alarm threshold, or
the ctpd process is non-operational.
Red
Both LEDs can be lit simultaneously.
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