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Product Overview
Principles and Application Scenarios
A
Principles
The RTN PI-DC B20 receives one channel of DC power signals and two channels of GE service signals.
After the PI receives DC power signals, the DC-DC processing module increases the voltage to -51.0 V.
If DC output is required, set the corresponding DIP switch to select the DC output mode. Then, the PI outputs the DC power
signals with the voltage increased to the DC output port.
If P&E output is required, set the corresponding DIP switch to select the P&E output mode. Then, the signal coupling module
couples DC power signals and GE service signals into P&E signals and outputs the P&E signals to the P&E port.
The frequencies of DC power signals and GE service signals do not interfere with each other. Therefore, the two types of
signals can be transmitted over the same twisted pair.
DC-PI working principles
DC IN
DC-DC
processing
mode
GE1
UNI-
side
device
GE2
UNI-
side
device
CAUTION
•The PI only couples GE signals and power signals, but does not regenerate or strengthen GE signals. Therefore, the
network cable between the UNI-side device and the powered device must not be longer than 100 m.
•The maximum distance between the PI and the powered device varies depending on the power of the powered device.
For details, see technical specifications.
DC-PI
DC OUT
powered
Maximum
device
distance between
the PI and
powered device
Signal
P&E1
powered
coupling
device
module
P&E2
Signal
coupling
powered
module
Maximum
device
distance between
the PI and
powered device
≤ 100 m
B
Application Scenarios
The RTN PI-DC B20 can supply power to OptiX RTN 300 full-outdoor microwave equipment series. The power supply
mode of the PI varies according to powered device type.
Mapping between powered device types and power supply modes
PI Support
Device Type
Version
(Yes/No)
SHXA2 board
Yes
RTN 310 (Integrated)
Yes
SXA3 board
RTN 310 (Split)
Yes
RTN 320 (Integrated)
Yes
RTN 320 (Split)
No
RTN 320F
Yes
RTN 360 (V-band)
Yes
SHUF3 board
Yes
RTN 380 (E-band)
MXUF4 board
Yes
RTN 380e
Yes
RTN 380A
Yes
RTN 380AX
Yes
MXUI5 board
Yes
RTN 380H
MXXI5 board
Yes
Power Supply Mode
Turn the DIP switch to the Force mode.
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
1. Turn the DIP switch to the P&E1 Out Only mode (only
supports P&E1 port power supply).
2. Turn the DIP switch to the Force mode.
Support for DC output only
Support for DC output only
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
Turn the DIP switch to the Force mode.
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
1. Turn the DIP switch to the P&E1 Out Only mode (only
supports P&E1 port power supply).
2. Turn the DIP switch to the Force mode.
1. Turn the DIP switch to the P&E1 Out Only mode (only
supports P&E1 port power supply).
2. Turn the DIP switch to the Force mode.
1. Turn the DIP switch to the P&E1 Out Only mode (only
supports P&E1 port power supply).
2. Turn the DIP switch to the Force mode.
03
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