- play_arrow Fast Track: Initial Installation
- play_arrow System Overview and Specifications
- play_arrow Site Planning and Preparation
- play_arrow Maintain Components
- play_arrow Troubleshoot Hardware
- play_arrow Contact Customer Support and Return the Chassis or Components
- play_arrow Safety and Compliance Information
- Safety Information for EX4000
- General Safety Guidelines and Warnings
- Definitions of Safety Warning Levels
- Qualified Personnel Warning
- Warning Statement for Norway and Sweden
- Fire Safety Requirements
- Installation Instructions Warning
- Chassis and Component Lifting Guidelines
- Restricted Access Warning
- Ramp Warning
- Rack-Mounting and Cabinet-Mounting Warnings
- Grounded Equipment Warning
- Radiation from Open Port Apertures Warning
- Laser and LED Safety Guidelines and Warnings
- Maintenance and Operational Safety Guidelines and Warnings
- General Electrical Safety Guidelines and Warnings
- Action to Take After an Electrical Accident
- Prevention of Electrostatic Discharge Damage
- AC Power Electrical Safety Guidelines
- AC Power Disconnection Warning
- Multiple Power Supplies Disconnection Warning
- TN Power Warning
- EX Series Agency Approvals
- Compliance Statements for EMC Requirements for EX Series Switches
- Compliance Statements for Acoustic Noise for EX Series Switches
- Statements of Volatility for Juniper Network Devices
Connect the EX4000 to Power
Connect Earth Ground to an EX4000 Switch
To ensure proper operation and to meet safety and electromagnetic interference (EMI) requirements, you must connect EX4000 switch models to earth ground before you connect power to the switch. You must use the protective earthing terminal on the switch chassis to connect the switch to earth ground.
You must install the EX4000 switches in a restricted-access location and ensure that the chassis is always properly grounded. EX4000 switches have a two-hole protective grounding terminal on the rear panel of the chassis. 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.
Ensure that a licensed electrician has attached the appropriate grounding lug to the grounding cable that you supply. Using a grounding cable with an incorrectly attached lug can damage the switch.
Before you connect earth ground to a EX4000 switch, ensure that you have parts and tools listed in #id-connect-earth-ground-to-an-ex4100-switch__ex4100-connect-earth-ground-parts-tools available:
Item | Switch Model | Description |
|---|---|---|
Earthing terminal location | EX4000 switches | Rear panel of the chassis |
Grounding cable requirements | EX4000 switches | Grounding cable (Yellow green): 6 AWG (13 mm²), minimum 90° C copper stranded wire, or as permitted by the local code—not provided. |
Grounding lug specifications | EX4000 switches | Panduit LCD6-14AF or equivalent—not provided |
Screws to secure the grounding lug | EX4000 switches | Two M5 X 10mm screws with washer—seperately orderable |
Tools required | EX4000 switches | Number 2 Phillips (+) screwdriver—not provided Electrostatic discharge (ESD) grounding strap—not provided |
Grounding Lug - Customers can order Ground lug kit, JNP-GL-2H6-M5-RA (or equivalent lug and screws)
The ground lug kit JNP-GL-2H6-M5-RA consists of:
One panduit lug LCD6-14AF-L
Two stainless steel screw with washer, M5 x 9.5
To ground the EX4000 switch to a proper ground reference:
- Place the grounding lug attached to the grounding cable over the protective
earthing terminal on the rear panel (see Figure 1). Figure 1: Connect a Grounding Cable to an EX4000-12MP Switch
Figure 2: Connect a Grounding Cable to an EX4000-24MP Switch
Figure 3: Connect a Grounding Cable to an EX4000-48MP Switch
Connect AC Power to an EX4000 Switch
Before you connect AC power, ensure that you have the following parts and tools available:
A power cord appropriate for your geographical location—provided
Ensure that you have connected the device chassis to earth ground. The AC power cords also provide additional grounding when you connect the power supply in the switch to a grounded AC power outlet by using the AC power cord appropriate for your geographical location (see Table 10).
For installations that require a separate grounding conductor to the chassis, have a licensed electrician complete this connection before you connect the switch to power. For instructions on connecting earth ground, see Connect Earth Ground to an EX4000 Switch.
To connect AC power to the switch:
- On the rear panel of the switch, insert the power cord retainer into the
power cord retainer slot. Figure 4: Insert the power cord retainer into the EX4000-12MP switch
Figure 5: Insert the power cord retainer into the EX4000-24MP switch
Figure 6: Insert the power cord retainer into the EX4000-48MP switch
- On the rear panel of the switch, insert the power cord plug into the power
input terminal. Press the tab on the power cord retainer loop until the loop
is snug against the base of the coupler. Figure 7: Insert the AC power cord to the EX4000-12MP switch
Figure 8: Insert the AC power cord to the EX4000-24MP switch
Figure 9: Insert the AC power cord to the EX4000-48MP switch
