Juniper EX8208 Hardware Manual page 77

Grounding requirements for EX8200 switches:
EX8208 switches—A pair of threaded inserts (PEM nuts) is provided on the right side toward the top
rear corner of the EX8208 chassis for connecting the switch to earth ground. The grounding points fit
UNC ¼-20 screws. The grounding points are spaced at 0.625 in. (15.86 mm).
The grounding cable that you provide for an EX8208 switch must be 2 AWG (33.6 mm
wire, or as permitted by the local code.
Figure 15 on page 77 shows the grounding lug that attaches to the grounding cable in an EX8208 switch.
Figure 15: Grounding Lug for an EX8208 Switch
End view
0.28
diameter
0.55
each hole
0.08 0.25 0.625
EX8216 switches—Two pairs of threaded inserts (PEM nuts) are provided on the EX8216 chassis for
connecting the switch to earth ground. The first pair is located on the right side toward the top rear
corner of the chassis. The second pair is on the rear of chassis toward the bottom right corner of the
chassis. Both pairs of grounding points fit UNC ¼-20 screws. The grounding points are spaced at 0.625
in. (15.86 mm).
The grounding cable that you provide for an EX8216 switch must be 2 AWG (33.6 mm
wire, or as permitted by the local code.
NOTE: EX8216 switches have two protective earthing terminals provided on the chassis. Only
one of these protective earthing terminals needs to be permanently connected to earth ground.
See Chassis Physical Specifications of an EX8216 Switch for the location of the protective earthing
terminals.
Two grounding lugs are shipped with the EX8216 switch.
2.25
Crimp area
All measurements in inches
0.37
6 AWG conductor
2
), minimum 60°C
2
), minimum 60°C
77