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IBM Ethernet Appliance J58S Getting Started Guide
Table 4: DC Power System Input Voltage
Figure 10: Connect DC Power Cables
CAUTION: You must ensure that power connections maintain the proper polarity.
The power source cables might be labeled
is no standard color coding for DC power cables. The color coding used by the external
DC power source at your site determines the color coding for the leads on the power
cables that attach to the terminal studs on each power supply.
1.
2.
3.
18
Step 5: Connect Ground and Power Cables
Item
Specification
DC input voltage
Operating range: –40 to –72 VDC
Ensure that the voltage across the DC power source cable leads is 0 V and that
there is no chance that the cable leads might become active during installation.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and
connect the strap to one of the ESD points on the chassis. For more information
about ESD, see the IBM Ethernet Appliance J58S Hardware Guide.
For each power supply:
Switch the circuit breaker on the power supply faceplate to the
a.
position.
Remove the clear plastic cover protecting the terminal studs on the faceplate.
b.
(+)
and
(–)
to indicate their polarity. There
(
)
OFF
O
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