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2. BitStorm 1900 Installation and Testing
1900-A2-GN20-00 BitStorm 1900 Installation and Maintenance Guide 2-51
Step Procedure (continued)
Figure 2-8: Typical DC Power Harness Connection to -48 V DC (260W) Power Source
4.) For a -48 V DC power source, connect the red power lead to the
Negative (-) terminal connection and the black power lead to the
Positive (+) terminal connection as seen in Figure 2-8, "Typical DC
Power Harness Connection to -48 V DC (260W) Power Source,"
on page 51.
NOTE: If using a -48 V DC power supply, use an appropriate volt-ohm meter to
test and verify that the red power feed at the shelf is the -48 V DC
supply. The meter should read between -46 and -56 V DC.
RED LEAD
-48V dc
Negative ( - )
Terminal
BLACK LEAD
V dc Return
Positive ( + )
Terminal
BLACK LEAD
V dc Return
Positive ( + )
Terminal
RED LEAD
-48V dc
Negative ( - )
Terminal
Power Supply #1 Power Supply #2
Single Power Source Rundant Power Source
02-17180