2U quick set-up checklist
37
Model 6276 User Guide
4 • Installation checklist
Power cable installation
This section describes installing the power and ground cables.
Installing the power cables—AC unit
This section describes installing the power cables into the IEC-320 connectors on the Model 6276 power sup-
ply.
Do not connect the remaining end of the power cables to the power outlet at this time
. Do the following:
1. Install a power cable into an IEC-320 connector (see
figure 13
). The AC main socket outlet shall be within
3 meters of the equipment and shall be easily accessible.
Figure 13. IEC-320 connector and grounding stud locations
2. Rotate the power cable retainer clip (see
figure 13
) so it secures the power cable plug in the
IEC-320 connector.
Installing the power cables—DC unit
This section describes installing the power cables into the DC power input module.
Do not connect the
remaining end of the power cables to the DC power source at this time.
The Model 6276 DC power supply
module comes with two power input terminal blocks (J1 and J2). The Model 6276 can draw power from
sources connected to either of these terminal blocks (inputs are diode-ORed and combined to provide for
redundant power input). Although the power supply module is designed to operate normally with one power
source, users may want to connect two independent power sources, one to each terminal block, to provide
uninterrupted operation in the event of one source failure.
1. Connect the earth ground of the DC source to the grounding stud on the Model 6276 chassis as described
in section
“Grounding the Model 6276—AC and DC units”
on page 38.
To avoid the risk of injury from electric shock, the power cords connected to
the IEC-320 connectors must be grounded power cords.
Use AWG 18 copper conductors for the DC supply.
WARNING
CAUTION
