User Manual

CDMA PicoBTSTM Hardware Description Page 15

3 Physical characteristics

3.1 PMU assembly

A PMU is shipped from Samsung completely assembled and

ready to install.

Figure 5 shows the PMU back panel and the connectors for

power, PRUs, and the GPS antenna cable.

Figure 5 PMU back panel with connectors and mounting hardware

Figure 6 shows the PMU with the service door open. The

boards are completely enclosed to maintain the correct

operating temperatures inside the PMU. Opening the door

exposes the service panel but does not expose the boards.

GPS

PRU1 (Alpha)

PRU2 (Beta)

PRU3 (Gamma)

Power

Customer I/O