User's Manual

Advanced RF Technologies, Inc. 48
x Slave RU is connected to master RU or other slave RU in a diasy chain structure using RS-485
line to monitor and control slave RUs.
x The RS-485 cable connected to master RU should be connected to RS-485 IN port of slave RU.
When a slave RU is connected to another slave RU, then the RS-485 cable should be connected
from the RS-485 OUT port to the RS-485 IN of the 2
nd
Slave RU. (Figure 3-36)
x If RS-485 port connections between sub RUs are not correct, master RU will not be able to
recognize all subordinate slave RUs. (Figure 3-37)
x WARNING! The RS-485 ports should NEVER be connected to the Enthernet port of laptop
or Ethernet Network Equipment. Doing so may cause serious damage to the sub RUs or
network equipments. (Figure 3-38)
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One power adapter can support up to (1) sub-RU.
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x Functions & Features
- Capable of supplying power to 8 Sub Rus (Master/Slave RU)
- Support Battery Backup (24V DC output)
x Spec
- Size: 19.0 x 12.0 x 2.6 inches (482 x 304x 66 mm)
- Weight: 9.9lbs (4.5 kg)
- Power Input: 110V or 220VAC, selectable by switch
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ADX DAS has the following LEDs on the front of the RU PSU as shown below in Figure 3-45.
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