User's Manual

Hardware Installation Manual Installing the BSDU
02030311-03 Airspan Networks Ltd. 5-19
5.5.2. Connecting to Power Supply (BSPS)
The connection between the BSDU and the power supply unit (BSPS) is made via a
two-meter long DC shielded power cable (supplied). The power cable has a power
connector at each end of the cable and a wire for preventing cable disturbances and
radiation. The power cable is connected to the BSDU’s power connector.
The wire color-coding is as follows:
! Red: positive
! Black: negative
To connect the BSDU to the power supply unit:
1. Connect the cable’s power connector side that provides an additional wire for
preventing power radiation, to the BSDU’s power port labeled POWER -48
VDC. Ensure that the black-colored (i.e., negative) side of the connector is
inserted in the upper part of the power receptacle; and the red-colored (i.e.,
positive) side of the connector is inserted in the lower part of the power
receptacle.
Figure 5-12: BSDU front panel with power port and screw attachment for power
radiation immunity
Lug for power cable radiation immunity
Power receptacle