Sun Microsystems 120 User Manual
3-2
Sun Fire V120 and Netra 120 Server User’s Guide • December 2001
3.1
Grounding the Netra 120 Server
The two M5 grounding studs on the server’s back panel are the recommended safety
grounding point (see
grounding point (see
). However, an alternative grounding point is
provided by the middle pin of the WAGO connector.
FIGURE 3-1
The Location of the Grounding Studs for Connecting the Two-Hole Lug
●
To ground the server, take a ground conductor and terminate it using a right-
angled two-hole lug.
angled two-hole lug.
Make sure that it is UL/CSA-approved, that it is suitable for an 8 AWG (6mm
2
)
conductor, and that it has a 5/8-inch pitch.
Note –
For Netra 120 servers that are stacked on top of each other in a rack, you
need to use a right-angled two-hole lug. Use a UL/CSA-approved component, such
as the one supplied by Thomas & Betts (part number: 54204-UB).
as the one supplied by Thomas & Betts (part number: 54204-UB).
●
To secure the lug onto the ground conductor cable, use a UL/CSA-approved
crimping tool, such as the one supplied by Thomas & Betts (part number: TBM 5-
S).
crimping tool, such as the one supplied by Thomas & Betts (part number: TBM 5-
S).
Do not use a torque value of more than 3.5 Nm maximum.
Connect the free end of the ground conductor cable to an earthing bar located near
to the equipment.
to the equipment.
Caution –
External filtering and/or surge suppression devices may be required on
the power feeds where branch circuit electromagnetic characteristics are unknown.
Note –
For more information about grounding the server, refer to the Sun Fire V120,
Netra 120, and Netra T1 Servers: Safety and Compliance Guide (part number: 816-3211).
M5 grounding
studs
studs