Acx4000 Router Grounding Specifications - Juniper ACX4000 Hardware Manual

ACX4000 Router Grounding Specifications

IN THIS SECTION
Grounding Points Specifications | 67
Grounding Cable Lug Specifications | 68
Grounding Cable Specifications | 69
Grounding Points Specifications
To meet safety and electromagnetic interference (EMI) requirements and to ensure proper operation, the
router must be adequately grounded before power is connected. To ground AC-powered and DC-
powered routers, you must connect a grounding cable to earth ground and then attach it to the chassis
grounding points using two paint-piercing washers and two screws (not provided) (see
68).
Two threaded holes are provided on the front of the router chassis for connecting the router to earth
ground. The grounding points fit 0.5-inch-long SAE 10-32 screws (American). The grounding points are
spaced at 0.625-in. (15.86-mm) centers.
You must install the ACX4000 in a restricted-access location and ensure that the chassis is always
properly grounded. The ACX4000 has a two-hole protective grounding terminal provided on the chassis.
See Figure 13 on page 68. We recommend that you use this protective grounding terminal as the
preferred method for grounding the chassis regardless of the power supply configuration. However, if
additional grounding methods are available, you can also use those methods. For example, you can use
the grounding wire in the AC power cord or use the grounding terminal or lug on a DC power
67
Figure 13 on page