Rear Panel Components; Alarm Leds On The Mx204 Front Panel - Juniper MX204 Hardware Manual

Rear Panel Components

The rear panel of the router has slots for the power supply modules and fan modules. The power and fan
modules are installed from the rear of the router.
Chassis Description" on page 23
Table 6 on page 28 lists the components on the rear panel of the MX204 router.
Table 6: Rear Panel Components in a Fully Configured MX204 Router
Component
Power supply module
Fan module

Alarm LEDs on the MX204 Front Panel

One alarm LED—labeled ALM—is located on the front panel of the router. A red light indicates a critical
condition that can result in a system shutdown, and a yellow light indicates a less severe condition that
requires monitoring or maintenance.
Table 7 on page 28 describes the alarm LED in more detail.
Table 7: Alarm LED on the MX204 Front Panel
Shape Color
Red
Yellow
SEE ALSO
Routine Maintenance Procedures for MX204 Routers | 115
"MX204 Chassis Description" on page 23
shows the rear of the fully configured chassis.
Slots
0 and 1
0 through 2
Description
Critical alarm—Indicates a critical condition that
can cause the router to stop functioning. Possible
causes include component removal, failure, or
overheating.
Warning alarm—Indicates a serious but nonfatal
error condition, such as a maintenance alert or
a significant increase in component temperature.
and "MX204
Number of FRUs
2
3
28