Operation Manual

Fiber Distributed Antenna System (Fiber DAS)
49
PSU DPU-302
The DPU-302 uses a HAN four prong Heavy Duty Power Connector.
 The DC to DC DPU-302 power supply has in input rating of -36 VDC to -72 VDC.
 The DPU-302 requires the installer to provide 18 AWG wire for the HAN 3 A plug kit (Harting P/N 10 20 003
0002) that is provided with the power supply. See Table 63 for connector pinout.
The DC power supply can support a single Master Frame Unit with up to 12 cards (BIU, FOI, ICU). The cards may be
all of one type or a mixture of cards.
Table 63
Han 3A Pinout
Pin #1 (+) Positive
Pin #2 Not connected
Pin #3 (-) Negative
Pin #4 Earth/Ground
DPU-302 Connector Pinout
Primary Power Configuration
Connect the output of the power supply to the input of the Master Unit.
 Use P101 on the Master Unit as the main power supply feed. See Figure 33 .
Note: Note that although there are two output connections on the front of the PSU, the PSU can only
power one Master Frame at a time.
Figure 33 Primary Power Configuration
Primary Power for One Master Unit
Backup Power Configuration
It is not required to use a backup/redundant power supply, but if the primary PSU fails a backup PSU will allow the
unit to continue operating without causing an outage.
The system designer may elect to have a single, redundant PSU act as a backup to two different Master Units
simultaneously with the understanding that if the main PSU for each Master Unit fails during the same time period
that the backup/redundant PSU can't support both Master Units.
 Use P102 on the Master Unit for a backup/redundant power supply. See Figure 34 on page 49 .
Figure 34 Backup Power Configuration
Backup Power for Two Master Units