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NOTE: Check if the power supplies AC or DC are fully inserted into the chassis.

Connect Power to an AC-powered SRX4600

To connect power to an AC-powered Firewall:

NOTE: An AC-powered device gets addional grounding when you connect the power supply in the device to a

grounded AC power outlet by using the power cord.

1. Insert the coupler end of the power cord into the AC power cord inlet on the AC power supply faceplate. Push the

power cord retainer onto the power cord.

2. Insert the power cord plug into an AC power source outlet:

a. If the AC power source outlet has a power switch, set it to on (|) posion and the Firewall will power on.

b. If there is no power switch on the AC power source outlet, the services gateway will power on instantly.

3. Verify that the OK/FAIL LED is lit green and on steadily.

Connect Power to a DC-powered SRX4600

To connect power to a DC-powered Firewall:

WARNING: Before performing the following procedure, ensure that there is no power in the DC circuit.

To ensure that all power is cut o, locate the circuit breaker on the panel board that services the DC

circuit, switch the circuit breaker to the o (0) posion, and tape the switch handle of the circuit

breaker in the o posion.

1. Ensure that the voltage across the DC power source cable leads is 0 V and that the cable leads do not become acve

while you are connecng DC power.

2. Verify that the DC power cables are correctly labeled before connecng them to the power supply. In a typical

power distribuon scheme where the return is connected to chassis ground at the baery plant, you can use a

mulmeter to verify the resistance of the –48V and RTN DC cables to chassis ground:

a. The cable with very high resistance (indicang an open circuit) to chassis ground is negave (–) and is installed on

the –48V (input) DC power input terminal.

Juniper SRX4600 User Manual

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