Figure 22: Grounding Cable Lug for MX104 24 VDC Systems
CAUTION: Before router installation begins, 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 router.
CAUTION: Themaximum torqueratingof the groundingscrewson the router
is 4.34 lb-in. (0.49 Nm). The grounding screws may be damaged if excessive
torque is applied. Use only a torque-controlled driver to tighten screws. Use
an appropriately sized driver, with a maximum torque capacity of 5 lb-in. or
less. Ensure that the driver is undamaged and properly calibrated and that
you have been trained in its use. You may wish to use a driver that is designed
to prevent overtorque when the preset torque level is achieved.
Grounding Cable Specifications
You must provide one grounding cable that meets the following specifications:
•
For AC systems, use 14-AWG (2.08 mm
2
) 90
°
C wire. See, Figure 21 on page 77
•
For 24 VDC systems, use 6-AWG (13.3 mm
2
) 60
°
C wire, or as required by the local
code. See Figure 22 on page 78
Related
Documentation
• Connecting the MX104 Router to Earth Ground on page 113
• Preventing Electrostatic Discharge Damage to an MX104 Router on page 220
Copyright © 2017, Juniper Networks, Inc.78
MX104 3D Universal Edge Router Hardware Guide
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