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Related Documentation

  • General Safety Guidelines and Warnings
  • General Electrical Safety Guidelines and Warnings
  • Prevention of Electrostatic Discharge Damage
  • Power Supply in EX2200 Switches
  • Power Supply in EX3200 Switches
  • Power Supply in EX3300 Switches
  • Power Supply in EX4200 Switches
  • AC Power Supply in EX4300 Switches
  • DC Power Supply in EX4300 Switches
  • AC Power Supply in EX4500 Switches
  • DC Power Supply in EX4500 Switches
  • AC Power Supply in EX4550 Switches
  • DC Power Supply in EX4550 Switches
  • AC Power Supply in an EX4600 Switch
  • DC Power Supply in an EX4600 Switch
  • AC Power Supplies in an EX6200 Switch
  • DC Power Supply in an EX6200 Switch
  • AC Power Supply in an EX8200 Switch
  • DC Power Supply in an EX8200 Switch
  • AC Power Supply in an EX9204 Switch
  • DC Power Supply in an EX9204 Switch
  • AC Power Supply in an EX9208 Switch
  • DC Power Supply in an EX9208 Switch
  • AC Power Supply in an EX9214 Switch
  • DC Power Supply in an EX9214 Switch
  • Power Supply in an EX Series Redundant Power System
  • AC Power Supply in OCX1100 Switches
  • DC Power Supply in OCX1100 Switches
  • AC Power Supply in a QFX3100 Director Device
  • AC Power Supply in a QFX3008-I Interconnect Device
  • Wiring Tray in a QFX3008-I Interconnect Device
  • AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
  • DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
  • AC Power Supply for a QFX5100 Device
  • DC Power Supply in a QFX5100 Device

Site Electrical Wiring Guidelines

This topic applies to hardware devices in the EX Series product family, which includes EX Series switches, the EX Series Redundant Power System (RPS), and the XRE200 External Routing Engine.

This topic also applies to hardware devices in the QFX Series and to OCX1100 switches.

Table 21 describes the factors you must consider while planning the electrical wiring at your site.

Warning: It is particularly important to provide a properly grounded and shielded environment and to use electrical surge-suppression devices.

Table 21: Site Electrical Wiring Guidelines

Site Wiring Factor

Guidelines

Signaling limitations

If your site experiences any of the following problems, consult experts in electrical surge suppression and shielding:

  • Improperly installed wires cause radio frequency interference (RFI).
  • Damage from lightning strikes occurs when wires exceed recommended distances or pass between buildings.
  • Electromagnetic pulses (EMPs) caused by lightning damage unshielded conductors and electronic devices.

Radio frequency interference

To reduce or eliminate RFI from your site wiring, do the following:

  • Use a twisted-pair cable with a good distribution of grounding conductors.
  • If you must exceed the recommended distances, use a high-quality twisted-pair cable with one ground conductor for each data signal when applicable.

Electromagnetic compatibility

If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly from lightning or radio transmitters, seek expert advice.

Some of the problems caused by strong sources of electromagnetic interference (EMI) are:

  • Destruction of the signal drivers and receivers in the switch
  • Electrical hazards as a result of power surges conducted over the lines into the equipment

Related Documentation

  • General Safety Guidelines and Warnings
  • General Electrical Safety Guidelines and Warnings
  • Prevention of Electrostatic Discharge Damage
  • Power Supply in EX2200 Switches
  • Power Supply in EX3200 Switches
  • Power Supply in EX3300 Switches
  • Power Supply in EX4200 Switches
  • AC Power Supply in EX4300 Switches
  • DC Power Supply in EX4300 Switches
  • AC Power Supply in EX4500 Switches
  • DC Power Supply in EX4500 Switches
  • AC Power Supply in EX4550 Switches
  • DC Power Supply in EX4550 Switches
  • AC Power Supply in an EX4600 Switch
  • DC Power Supply in an EX4600 Switch
  • AC Power Supplies in an EX6200 Switch
  • DC Power Supply in an EX6200 Switch
  • AC Power Supply in an EX8200 Switch
  • DC Power Supply in an EX8200 Switch
  • AC Power Supply in an EX9204 Switch
  • DC Power Supply in an EX9204 Switch
  • AC Power Supply in an EX9208 Switch
  • DC Power Supply in an EX9208 Switch
  • AC Power Supply in an EX9214 Switch
  • DC Power Supply in an EX9214 Switch
  • Power Supply in an EX Series Redundant Power System
  • AC Power Supply in OCX1100 Switches
  • DC Power Supply in OCX1100 Switches
  • AC Power Supply in a QFX3100 Director Device
  • AC Power Supply in a QFX3008-I Interconnect Device
  • Wiring Tray in a QFX3008-I Interconnect Device
  • AC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
  • DC Power Supply for a QFX3500, QFX3600, or QFX3600-I Device
  • AC Power Supply for a QFX5100 Device
  • DC Power Supply in a QFX5100 Device

Modified: 2015-06-23