Connecting the SRX4600 to Power
Connecting Earth Ground to an SRX4600 Services Gateway
To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the SRX4600 Services Gateway to earth ground before you connect it to power.
For installations that require a separate grounding conductor to the chassis, you must attach a protective earthing terminal bracket on the mounting bracket on the left front of the services gateway to connect to the earth ground ).
You must install the SRX4600 in a restricted-access location and ensure that the chassis is always properly grounded. The SRX4600 has a two-hole protective grounding terminal provided on the chassis. See Figure 1. Under all circumstances, use this grounding connection to ground the chassis. For AC-powered systems, you must also use the grounding wire in the AC power cord along with the two-hole grounding lug connection. This tested system meets or exceeds all applicable EMC regulatory requirements with the two-hole protective grounding terminal.
Before you connect earth ground to the protective earthing terminal of an SRX4600 Services Gateway, ensure that a licensed electrician has attached an appropriate grounding lug to the grounding cable.
Using a grounding cable with an incorrectly attached lug can damage the services gateway.
Mount your services gateway in the rack or cabinet before attaching the grounding lug to the services gateway. See SRX4600 Services Gateway Installation Overview.
Ensure that you have the following parts and tools available:
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Protective earthing terminal bracket—This bracket attaches to the services gateway chassis through the left front mounting bracket, providing a protective earthing terminal for the services gateway.
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Grounding cable for your services gateway—The grounding cable must be 14 AWG (2 mm²), minimum 90° C wire, or as permitted by the local code.
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Grounding lug for your grounding cable—The grounding lug required is a Panduit LCD10-10A-L or equivalent.
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Two SAE 10–32 x 0.375 in. screws with integrated split washers (not provided)—The screws and washers are used to secure the grounding lug to the protective earthing terminal.
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Socket wrench or screw driver to tighten the screws.
An AC-powered services gateway chassis gains additional grounding when you plug the power supply in the services gateway into a grounded AC power outlet by using an AC power cord appropriate for your geographical location. See SRX4600 Services Gateway AC Power Cord Specifications.
To connect earth ground to an SRX4600 Services Gateway:
Connecting AC Power to an SRX4600 Services Gateway
Ensure that you have a power cord appropriate for your geographical location available to connect AC power to the services gateway.
Before you begin connecting AC power to the services gateway:
Ensure that you have taken the necessary precautions to prevent electrostatic discharge (ESD) damage (see Prevention of Electrostatic Discharge Damage).
Ensure that you have connected the services gateway chassis to earth ground.
CAUTION:Before you connect power to the services gateway, a licensed electrician must attach a cable lug to the grounding and power cables that you supply. A cable with an incorrectly attached lug can damage the services gateway (for example, by causing a short circuit).
To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the chassis to earth ground before you connect it to power. For installations that require a separate grounding conductor to the chassis, use the protective earthing terminal on the services gateway chassis to connect to the earth ground. For instructions on connecting earth ground, see Connecting Earth Ground to an SRX4600 Services Gateway. The services gateway gains additional grounding when you plug the power supply in the services gateway into a grounded AC power outlet by using the AC power cord appropriate for your geographical location.
Install the power supply in the chassis. For instructions on installing an AC power supply in an SRX4600 Services Gateway, see Installing the SRX4600 Services Gateway AC Power Supply.
The SRX4600 Services Gateway is shipped from the factory with two power supplies. Each power supply is a field-replaceable unit (FRU). You can install replacement power supplies without powering off the services gateway or disrupting the services gateway function.
Each power supply must be connected to a dedicated power source outlet.
To connect AC power to an SRX4600 Services Gateway:
Connecting DC Power to an SRX4600 Services Gateway
Before you begin connecting DC power to the services gateway:
Ensure that you have taken the necessary precautions to prevent ESD damage (see Prevention of Electrostatic Discharge Damage).
Ensure that you have connected the services gateway chassis to earth ground.
CAUTION:To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, you must connect the services gateway to earth ground before you connect it to power. For installations that require a separate grounding conductor to the chassis, use the protective earthing terminal on the services gateway chassis to connect to earth ground. For instructions on connecting an SRX4600 Services Gateway to ground using a separate grounding conductor, see Connecting Earth Ground to an SRX4600 Services Gateway.
Install the power supply in the chassis. See Installing the SRX4600 Services Gateway DC Power Supply.
Ensure that you have the following parts and tools available to connect DC power to the services gateway:
Electrostatic discharge (ESD) grounding strap
Multimeter
The SRX4600 Services Gateway is shipped from the factory with two power supplies. Each power supply is a field-replaceable unit (FRU). You can install replacement power supplies without powering off the services gateway or disrupting the services gateway function.
Before you perform DC power procedures, ensure there is no power to the DC circuit. To ensure that all power is off, locate the circuit breaker on the panel board that services the DC circuit, switch the circuit breaker to the off position, and tape the switch handle of the circuit breaker in the off position.
Before you connect power to the services gateway, a licensed electrician must attach a cable lug to the grounding and power cables that you supply. A cable with an incorrectly attached lug can damage the services gateway (for example, by causing a short circuit).
Each power supply input feed must be connected to a dedicated DC power source outlet.
Ensure that the power cords do not block access to services gateway components or drape where people can trip on them.
To connect DC power to the services gateway: