Srx5800 Services Gateway High-Capacity Dc Power Supply - Juniper SRX5800 Hardware Manual

Table 20: DC Power Supply LEDs
Label Color
PWR OK Green
BREAKER Green
ON
INPUT OK Green
Amber

SRX5800 Services Gateway High-Capacity DC Power Supply

High-capacity DC power supplies provide a maximum of 4100 W of power each. Two high-capacity DC
power supplies are required, and you can install four high-capacity DC power supplies for redundancy.
Each high-capacity DC power supply has inlets for two DC power feeds. The four power connectors (-48V
and RTN for each of the two inlets) are located behind a clear plastic cover near the bottom of the power
supply. Each DC power inlet you use requires a dedicated DC power feed and a dedicated 80 A circuit
breaker. See Figure 20 on page
NOTE: The services gateway cannot be powered from standard-capacity and high-capacity DC
power supplies simultaneously. The one exception is during the process of replacing
standard-capacity DC power supplies with high-capacity DC power supplies, when it is permissible
to have both types installed briefly.
NOTE: The high-capacity power supply will operate with only one of its two DC inlets connected
to a DC power feed. However, its DC output will be limited to a maximum of 1700 W. We
recommend that you connect two DC power feeds to each high-capacity DC power supply.
State Description
Off Power supply is not functioning normally. Check the INPUT OK
LED for more information.
On Power supply is functioning normally.
Off DC power supply circuit breaker is turned off.
On 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 connected in reverse polarity.
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