Dell Force10 C300 C300 Hardware Installation Guide - Page 36

Grounding, The cable attached to these, studs is typically red., typically black.

Get Dell Force10 C300 PDF manuals and user guides View all Dell Force10 C300 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 36 highlights

www.dell.com | support.dell.com Step Task (continued) 7 Remove the outer nuts and washers from each of the remaining studs. 8 Connect the -48 VDC and Return cables from each PEM to the remote sources. Verify that the remote source is in the OFF position. Locate the appropriate studs on the PEM front panel. • The two top studs (furthest from the GND) are the return (+48V DC) connection. The cable attached to these studs is typically red. • The two bottom studs (closest to GND) are the -48 V DC connection. The cable attached to these studs is typically black. NOTE: Cables must be terminated only with a UL-listed 2-hole lug to accommodate 1/4-inch studs with 3/4-inch spacing. Apply a coat of anti-oxidant paste to the connector studs, if required. Replace the washers and nuts on the studs. Route the terminated cables out toward the rack rail. Secure the nuts with a nut driver or torque wrench (not to exceed 4 ft/lbs). Figure 8-3. Grounding Return (+48V) Connectors Ground Connector -48V Connectors Step Task (continued) 9 Replace the safety cover and tighten the captive screw. Note that the safety cover can be rotated to accommodate system configurations. 10 Turn the Over-Current Protector to the ON position (Figure 8-1). 11 Turn the remote source (the circuit breaker panel) to the ON position. 36 | Installing DC Power Entry Modules

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
36
|
Installing DC Power Entry Modules
www.dell.com | support.dell.com
Figure 8-3.
Grounding
7
Remove the outer nuts and washers from each of the remaining studs.
8
Connect the -48 VDC and Return cables from each PEM to the remote sources.
Verify that the remote source is in the
OFF
position.
Locate the appropriate studs on the PEM front panel.
•
The two top studs (furthest from the GND) are the return (+48V DC) connection.
The cable attached to these
studs is typically red.
•
The two bottom studs (closest to GND) are the -48 V DC connection.
The cable attached to these studs is
typically black.
NOTE:
Cables must be terminated only with a UL-listed 2-hole lug to accommodate 1/4-inch studs with
3/4-inch spacing.
Apply a coat of anti-oxidant paste to the connector studs, if required.
Replace the washers and nuts on the studs.
Route the terminated cables out toward the rack rail.
Secure the nuts with a nut driver or torque wrench (not to exceed 4 ft/lbs).
Step
Task (continued)
9
Replace the safety cover and tighten the captive screw.
Note that the safety cover can be rotated to accommodate system configurations.
10
Turn the Over-Current Protector to the
ON
position (
Figure
8-
1
).
11
Turn the remote source (the circuit breaker panel) to the
ON
position.
Step
Task (continued)
Ground
Connector
Return (+48V)
Connectors
-48V
Connectors