Principles and Application Scenarios
Product Overview
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-DC
processing
mode
DC IN
DC OUT
Signal
coupling
module
GE1
P&E1
Signal
coupling
module
GE2
P&E2
DC-PI working principles
DC-PI
UNI-
side
device
powered
device
powered
device
UNI-
side
device
≤ 100 m
•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.
powered
device
Maximum
distance between
the PI and
powered device
Maximum
distance between
the PI and
powered device
CAUTION
B
Application Scenarios
A
Principles
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
03
Device Type
Version
PI Support
(Yes/No)
Power Supply Mode
RTN 310 (Integrated)
SHXA2 board
Yes
Turn the DIP switch to the Force mode.
SXA3 board
Yes
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
RTN 310 (Split)
Yes
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
RTN 320 (Integrated)
Yes
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.
RTN 320 (Split)
No
Support for DC output only
RTN 320F
Yes
Support for DC output only
RTN 360 (V-band)
Yes
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
RTN 380 (E-band)
SHUF3 board
Yes
Turn the DIP switch to the Force mode.
MXUF4 board
Yes
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
RTN 380e
Yes
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
RTN 380A
Yes
1. Turn the DIP switch to the P&E1 and P&E2 Out mode.
2. Turn the DIP switch to the PSE-PD mode.
RTN 380AX
Yes
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.
RTN 380H
MXUI5 board
Yes
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.
MXXI5 board
Yes
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.
