M120 Ac Power Supply Leds; Figure 14: M120 Ac Power Supply; Table 14: M120 Power Supply Led - Juniper Networks Hardware Manual

M120 Multiservice Edge Router Hardware Guide
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M120 AC Power Supply LEDs

Table 14: M120 Power Supply LED

Color State
Blue Off
Blinking
On steadily
30
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Each AC power supply has two AC appliance inlets. Each requires a dedicated AC power
feed. For 100-120 VAC, both inlets are used and the bottom inlet cover must be removed
prior to installation. For 200-240 VAC, only the top inlet is used.

Figure 14: M120 AC Power Supply

M120 AC Power Supply LEDs on page 30
M120 Router Power Requirements on page 237
Connecting Power to an AC-Powered M120 Router on page 89
Maintaining the M120 Power Supplies on page 115
Replacing an M120 AC Power Supply on page 173
M120 AC Power, Connection, and Power Cord Specifications on page 231
The LED on each power supply faceplate indicates the status of the power supply (see
Table 14 on page 30, which applies to the AC and DC power supply). The power supply
status is also reflected in two LEDs on the craft interface (see Table 13 on page 28). In
addition, a power supply failure triggers the red alarm LED on the craft interface.
Description
No power applied to power supply.
Power supply blinks for 5 seconds after initial power on.
Power supply is installed, but not powered on.
Input voltage is invalid.
Power supply has failed.
Power supply is functioning normally.
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