Srx5400 Services Gateway Cooling System Description; Figure - Juniper SRX5400 Hardware Manual

Table 15: DC Power Supply LEDs (continued)
Label Color
Amber
Green
BRKR ON
Green
INPUT OK Green
Amber
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Documentation

SRX5400 Services Gateway Cooling System Description

Copyright © 2014, Juniper Networks, Inc.
State Description
On Power supply is functioning normally.
On The main output voltage is out of range (lower limit: 37.5 V to 39.5 V; upper
limit: 72.5 V to 76 V).
Off DC power supply circuit breaker is turned off.
On DC power input is present and the DC power supply circuit breaker is turned
on.
Off DC input to the PEM is not present.
On DC input is present and is connected in correct polarity.
On DC input is present, but not in valid operating range or connected in reverse
polarity.
SRX5400 Services Gateway Craft Interface Power Supply LEDs on page 18
SRX5400 Services Gateway Power System Overview on page 23
SRX5400 Services Gateway DC Power Supply on page 25
The cooling system consists of the following components:
Fan tray
Air filter
The cooling system components work together to keep all services gateway components
within the acceptable temperature range (see
and Figure 15 on page 28 ). The device has one fan tray and one air filter that install
vertically in the rear of the device. The fan tray contains six fans.
The air intake to cool the chassis is located on the side of the chassis next to the air filter.
Air is pulled through the chassis toward the fan tray, where it is exhausted out the side
of the system. The air intake to cool the power supplies is located in the front of the
device above the craft interface. The exhaust for the power supplies is located on the
rear bulkhead power supplies.
Each fan has an LED that displays its status. The fan LEDs are located on the top left of
the craft interface.
Chapter 2: SRX5400 Services Gateway Hardware Components
Figure 13 on page 28, Figure 14 on page 28,
27