SOLiD 700P800P Multiple-Enclosure Booster System User Manual PS Manual SC MRU700PS800PS AC

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4.2.6 ODU Interface with BIU
SISO Configuration
MIMO Configuration
Figure 4.17 BIU/ODU interface
For SISO configuration, up to four ODUs can be stacked. above the top of the BIU.
For MIMO configuaration, up to eight ODUs can be stacked above/below the BIU.
In this case, it is recommended to leave a 1RU space between BIU and the ODUs otherwise heat from
BIU may degrade the performance of the ODUs,
Figure 4.18 – BIU/ODU Interface rear view
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As shown in the figure below, connect one coaxial cable for TX and another coaxial cable for RX with
corresponding ports at the rear of BIU. For power supply and communication, connect 25Pin D‐Sub
Connector cable to the corresponding port.
Figure 4.19 – BIU/ODU interface details
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4.3 OEU (Optic Expansion Unit)
OEU is mainly used to remotely deliver signals for Campus clusters. At the upper part, this unit
combines with ODU and receives TX optical signals to convert them into RF signals. Then, it
regenerates the signals to secure SNR and converts them into optical signals. The signals are sent to
ROU through optical cables. When it receives RX optical signals from ROU, the unit converts them
into RF signals to regenerate the signals and then converts them into optical signals to send them to
ODU.
In OEU, one shelf can be equipped with up to two DOUs. The DOU is the same as the module used
for ODU. Up to four OEUs can be connected with ODU.
Figure 4.20 – OEU at a glance
4.3.1 Specifications of OEU
Item
Spec.
Remark
Size
482.6(19”) x 88.1(2RU) x 450
mm
Weight
9.5 kg
Power consumption
40 W
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4.3.2 OEU block diagram
Figure 4.21 – OEU block diagram
4.3.3 OEU assemblies
Figure 4.22 – OEU internal view
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No.
Unit
Description
Remark
Donor Optic Unit
DOU
Convert TX RF signals into optical signals;
Convert RX optical signals into RF signals;
Max 2 ea.
Provide up to four optical ports per DOU
Expansion Wavelength Division Multiplexer
EWDM
Convert TX optical signals into RF signals;
Convert RX RF signals into optical signals;
Compensates for optical cable loss with ODU
Expansion Central Processor Unit
ECPU
Control and monitoring system status
Control and monitoring with RS232
Relays state values of ROU to BIU
EPSU
Expansion Power Supply Unit
Input power: DC ‐48V, Output power: 9V, 6V
Expansion Radio Frequency Module
ERFM
Regenerate TX signals and transmit FSK modem signals;
Regenerate RX signals and receive FSK modem signals
Shelf
19” rack, 2RU
4.3.4 Sub Assembly description
1) Donor Optic Unit (DOU)
The DOU is the same as the module used for the ODU.
Figure 4.23 – DOU at a glance
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2) Expansion Wavelength Division Multiplexer(EWDM)
EWDM module handles the optical to RF conversion of TX signals as well as the RF to optical
conversion of RX signals. This multiplexer communicates with the BIU using the built in FSK modem.
It also has an ATT to compensate for optical cable loss between ODUs.
Finally , it has internal WDM so it needs only one optical cable to work with an ROU.
Figure 4.24 – EWDM at a glance
3) Expansion Central Processor Unit(ECPU)
ECPU can query and control the state of modules installed into the OEU. This unit simultaneoulsy
communicates with the BIU and the ROUas well as acting as communication bridge between BIU and
ROU.
In addition, the unit has a USB port for local communication which enables query and control of
devices thorugh a PC. At the front panel, communication LED indicator indicates communication
with upper BIU and lower ROU. It also has an ALM LED indicator to show fault.
Figure 4.25 – ECPU at a glance
4) Expansion Radio Frequency Module(ERFM)
ERFM repairs Signal to Noise degraded by optical modules.
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Figure 4.26 – ERFM at a glance
5) Expansion Power Supply Unit(EPSU)
As DC/DC Converter, the EPSU receives ‐48VDC input and provides +9V and +6V of DC power
required for OEU.
Figure 4.27 – EPSU at a glance
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4.3.5 OEU front/rear panel overview
1)
Front panel
Figure 4.28 – OEU front panel view
Item
Description
1.EWDM LED
LED indicator to check EWDM state to see if it is abnormal
2.DOU LED
LED indicator to check DOU module state to see if it is abnormal
3.System LED and Reset
Communication state with devices, alarm status of the system and reset
switch
USB port for communication and diagnosis of devices through PC/laptop.
4. NMS(USB Port)
This equipment isfor indoor use only and all the communication wirings are
limited to indoor use as well.
2) Rear panel
Figure 4.29 – Rear panel view
Item
Description
1. GND Port
Terminal for system ground
2. DC Input Port
Input terminal for DC ‐48V
3.power switch
Power ON/OFF switch
4. To/From ODU Optic Port
SC/APC optical connector terminal
5. To/From ROU Optic Port
SC/APC optical connector terminal; use one optical cable per ROU.
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4.4 ROU (Remote Optic Unit)
The ROU consists of two units: the MRU(Main Remote Unit) and the ARU(Add on Remote Unit). The
ROU is considered the combination of MRU and ARU.
The MRU receives TX optical signals from the ODU or the OEU and converts them into RF signals.
The converted RF signals are amplified through a High Power Amp in a corresponding RU, combined
with the Multiplexer and transmitted out the antenna port.
The ROU receives RX signals through the antenna port, filters out‐of‐band signals in a corresponding
RU and sends the results to Remote Optic Module to make RF tooptical conversion of them. After
converted, the signals are sent to a upper device (theODU or OEU).
The MRU and ARU have a maximum of 2 bands.
The main difference between an MRU an ARU is the presence of an optical module .
(a) MRU
(b) ARU
Figure 4.30 – ROU at a glance
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4.4.1 ROU specifications
Item
Band
Band combination
Size
(W x H x D)
MRU 1900P+850C
Combination1 ARU 700LTE+AWS‐1
Band
MRU 1900P
Combination2 ARU 900I+800I
Band
Combination3
Band
Combination4
Band
Weight
Power
consumption
6.6kg
50W
6.8kg
40W
6.5kg
45W
6.8kg
44W
7.1kg
50W
7.1kg
50W
Full
200 x 300 x 140
MRU 700LTE+AWS‐1
mm
MRU 700PS+800PS
Remark
load
To be developed
Combination5 To be developed
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4.4.2 ROU block diagram
4.4.2.1 Combination of MRU 1900PCS+850C/ARU 700LTE+AWS‐1
Figure 4.31 – ROU block diagram for MRU 1900PCS+850C and ARU 700LTE+AWS‐1
4.4.2.2 Combination of MRU 1900PCS/ARU 900I+800I
Figure 4.32 – ROU block diagram for MRU 1900PCS and ARU 900I+800I
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4.4.2.3 Combination of MRU 700LTE+AWS‐1
Figure 4.33 – ROU block diagram for MRU 700LTE+AWS‐1
4.4.2.4 Combination of MRU 700PS+800PS
Figure 4.34 – ROU block diagram for MRU 700PS+800PS
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4.4.2.5 Combination of MRU 1900PCS+850C/ARU 700LTE+AWS‐1
(a) MRU 1900PCS+850C
(b) ARU 700LTE+AWS‐1
Figure 4.35 – ROU internal view for MRU1900PCS+850C and ARU 700LTE+AWS‐1
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4.4.2.6 Combination of MRU 1900PCS/ARU 900I+800I
(a) MRU 1900PCS
(b) ARU 900I+800I
Figure 4.36– ROU internal view for MRU 1900PCS and ARU 900I+800I
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4.4.2.7 Combination of MRU 700LTE+AWS‐1
(a) MRU 700LTE+AWS‐1
Figure 4.37 – ROU internal view for MRU 700LTE+AWS‐1
4.4.2.8 Combination of MRU 700PS+800PS
(a) MRU 700PS+800PS
Figure 4.38 – ROU internal view for 700PS+800PS
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No.
Unit
Description
Remark
Main/Add on RF Module
MRFM/ARFM
Filter and heavy amplification of TX signals;
+BPF
Filter and amplify RX signals;
Remove other signals through BPF
Remote Power Supply Unit
RPSU
Input power: DC ‐48V or AC120V, Output power: 25V
For 120V input of AC/DC;
For ‐48V input of DC/DC
Remote Optic
Make RF conversion of TX optical signals;
R‐OPT
Convert RX RF signals into optical signals;
Compensates optical loss interval
Communicates with BIU or OEU though the FSK modem
Remote Central Processor Unit
RCPU
Controls signal of each unit
Monitors BIU/ODU/OEU status through FSK modem
communication
Enable Wall Mount;
Enclosure
Check if the system is normal, through the bottom panel
LED
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4.4.3 Sub Assembly description
1) Main RF Module/Add on RF Module (MRFM/ARFM)+BPF
When receiving TX signals from each band through R‐Opt, MRFM/AFRM filters the signals and
amplifies them with the High Power Ampifier. The unit also filters RX signals received through the
antenna port and amplifies them as low noise to send the signals to R‐Opt.
In the unit, there is an ATT to adjust gain. This device
varies for each frequency band, including the
following:
No
Combination
Unit naming
BPF
Description
Cavity Filter
Ceramic Filter
MRU1900P+850C
MRFM 1900P+850C
Dual.
1900PCS
850C
ARU700LTE+AWS‐1
ARFM 700LTE+AWS‐1
Dual.
700LTE
AWS‐1
MRU1900P
MRFM 1900P
Single
1900PCS
‐
ARU900I+800I
ARFM900I+800I
Dual
900IEN/800IDEN
‐
MRU700LTE+AWS‐1
MRU700LTE+AWS‐1
Dual.
700LTE
AWS‐1
MRU700P+800P
MRU700PS+800PS
Dual.
700PS/800PS
To be developed
‐
‐
‐
‐
2) Remote Power Supply Unit (RPSU)
RPSU accepts ‐48VDC input. This unit is configured 2 ways: the DC/DC type outputs +25V of DC power
and AC/DC type takes 120V AC input and outputs +25V of DC power.
Please specify which type when ordering. MS Connector, which uses ports to receive inputs, is
designed for either AC and DC input configuration. The input cable is different depending on input
voltage conditions.
The RPSU doesn’t have a switch to turn the power ON/OFF. Unit is active when power is connected.
Here, you should check for range of input power as follows:
No.
Unit
Range of input power
AC/DC
90 to 264 VAC
DC/DC
‐42V to ‐56VDC
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(a)AC/DC
(b)DC/DC
Figure 4.39 – PSU at a glance
3) Remote Optic(R‐OPT)
The Remote Optic performs the optical to RF signal conversion as well as the RF to optical
conversion. With an FSK modem in it, the unit communicates with the other devices.
It also has an internal ATT to compensate for optical cable loss. The optical wavelength for TX path is
1310nmand 1550nm for the RX path. It is transported by a fiber strand using WDM(Wavelength
Division Multiplexing) technique
4) Remote Central Processor Unit (RCPU)
The RCPU can monitor and control the RU. This unit receives and analyzes upper communication
data from Remote Optic and reports the unit's own value to the upper devices. At the bottom of the
module, it has an LED indicator to show system status, letting you check any fault conditions. The
same panel also has communication LED Indicators to show communication status with upper
devices. Through the USB Port, the unit enables you to check and control device status through a PC
or laptop. This equipment is for indoor use only and all the communication wirings are limited to
indoor use as well.The RCPU of the MRU have two ports to connect exteranl devices (the ARU and
the VHF&UHF ARU). Using an external interface cable, the MRU can communicate with the
ARU/VHF&UHF ARU.
The MRU collects status information from ARU/VHF&UHF ARU and then communicates with the
upper device
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4.4.4 Bottom of ROU
1) Functions
(a) MRU
(b) ARU
Figure 4.40 – ROU Bottom view
Item
1. VHF/UHF ARU Port
2.LED PANEL
3. Power Port
4.ARU/MRU Port
5.GND LUG PORT
Description
Remark
Terminal for TX and RX RF ports of VHF and UHF
Terminal for signal port to interface with VHF and UHF
Visible LED indicator panel for checking fault status USB Port to
check and control device status through PC and laptop
AC 120V input port or DC‐48V input port
Terminal for TX and RX RF ports of MRU/ARU
Terminal for signal port to interface with MRU/ARU
Terminal for system ground
Power Port
A different type of power port is used supplying ‐48V DC or 120V AC, and specific power
cable should be applied to each different type of ROU power supply (AC/DC or DC/DC).
Below figure shows different power connectors.
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(a)AC/DC
(b)DC/DC
Figure 4.41 – ROU Power Port View
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4.4.5 Top of ROU
4.4.5.1 Combination of MRU1900PCS+850C/ARU700LTE+AWS‐1
(a)MRU
(b)ARU
Figure 4.42 – ROU Top View for MRU 1900P+850C and ARU 700LTE+AWS‐1
4.4.5.2 Combination of MRU1900PCS/ARU900I+800I
(a)MRU
(b)ARU
Figure 4.42 – ROU Top View for MRU 1900P and ARU 900I+800I
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4.4.5.3 Combination of MRU700LTE+AWS‐1
(a)MRU
Figure 4.44 – ROU Top View for MRU700LTE+AWS‐1
4.4.5.4 Combination of MRU700PS+800PS
(a)MRU
Figure 4.45 – ROU Top View for MRU700PS+800PS
Item
1. RF Port
2. ANT Port
3. Optic Port
Description
Remark
Terminal for Low RF port to connect between MRU and ARU RF
Terminal for HIGH RF port to connect between MRU and ARU RF
Terminal for RF port to connect to antenna
Termnial for Optical port to connect with fiber cable
The fiber connector type is SC/APC
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Section5
System Installation & Operation
5.1
BIU Installation
5.2 ODU Installation
5.3 ROU Installation
5.4 OEU Installation
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This chapter describes how to install each unit and corresponding fiber cables, along with power
cabling method.
In detail, the chapter describes how to install shelves or enclosures of each unit, Power Cabling
method , Optic Cabling and RF Interface. Furthermore, by showing power consumption of modules
installed in each unit, a the Power Cabling budget is easily determined. Last, it describes the quantity
of components of modules to be installed in each unit along with an expansion method.
5.1
BIU Installation
5.1.1 BIU Shelf Installation
Generally, the BIU is installed in a 19” standard rack. This unit has handles on each side for easy
placement. With two mounting holes on each side, you can firmly fix the unit into a 19” rack.
Figure 5.1 – RACK Installation
BIU has the following components:
No.
Common Part
SISO Slot
MIMO Slot
Unit
Description
Remark
Shelf
Including Main Board, 19”,5U
1EA
MPSU
Operate ‐48Vdc Input
1EA
MCPU
With Ethernet Port and USB Port
1EA
Power Cable
‐48Vdc Input with two lug terminal
1EA
MCDU
‐
1EA
MDBU
Two among MDBU
Up to 2EA
MCDU
‐
1EA
MDBU
Two among MDBU
Up to 2EA
Basically, the frame of the BIU has slots equipped with an MPSU to supply devices with poweran
MCPU to query and control state of each module and a Power Cable to supply power from external
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rectifiers.
In addition, ther are slots for the MDBUs which provide services for desired band (Optional) and the
MCDU to combine and divide TX/RX signals for each SISO and MIMO slots
5.1.2 BIU Power Cabling
BIU requires ‐48VDC
input power. Connect DC cable from the power supply to the Terminal Block
seen at the rear of BIU.
Terminal
Color of cable
Description
‐48V
Blue color
‐
GND
Black color
‐
Not Connected
‐
NC
Remark
Before connecting the power terminal, you need to connect "+" terminal of the DVM probe with the
GND terminal and then connect "–" terminal with ‐48V to see if “‐48Vdc” voltage is present. After
confirming this, connect the power terminal with the terminal of the terminal block seen below.
Figure 5.2 – Power interface diagrm
Note that BIU does not operate if the "+" terminal and the "–" terminal of the ‐48V power
are reversed.
When you connect ‐48V power to the BIU, use the ON/OFF switch of the MPSU located at the front
of BIU to check the power.
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Power Switch
LED
Description
Abnormal, Not supply Power ‐48Vdc
ON
Normal supply power ‐48Vdc
Normal Status
DC ALM
Failure of output Power
ON
Normal Status
DC ALM
Figure 5.3 – PSU LED indicator information
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5.1.3 BIU/RF interface
The BIU can be connected with a Bi‐Directional Amplifier or Base Station Tranceiver.
To connect the BIU with a BDA, you need to use a duplexer or a circulator to separate TX/RX signals
from each other.
The BIU can feed external TX/RX signals from the Back Plane.
Using a dual band MDBU, the BIU can easily accomodate all frequency bands. As seen in the table
below, the MDBU is divided into Single and Dual Bandmodules and each unit can be connected
with two carrier signals per band. At the rear of the MDBU, 4 ports represent the inputs for the
frequency bands. The following table shows signals to be fed to corresponding ports:
No
Unit naming
In/out RF Port
Description
TX
RX
Port#1
1900P TX(1930~1995MHz)
1900P RX(1850~1915MHz)
Port#2
1900P TX(1930~1995MHz)
1900P RX(1850~1915MHz)
Port#3
850C TX(869~894MHz)
850C RX(824~849MHz)
Port#4
850C TX(869~894MHz)
850C RX(824~849MHz)
Port#1
700LTE TX(728~757MHz)
Dual Band
1900P+850C
1900P:2Port
MDBU
850C:2Port
700LTE RX(698~716MHz,
777~787MHz)
Dual Band
700LTE RX(698~716MHz,
700LTE+AWS‐1
700LTE:2Port
Port#2
700LTE TX(728~757MHz)
777~787MHz)
MDBU
AWS‐1:2Port
Port#3
AWS‐1 TX(2110~2155MHz)
AWS‐1 RX(1710~1755MHz)
Port#4
AWS‐1 TX(2110~2155MHz)
AWS‐1 RX(1710~1755MHz)
1900P
Single Band
Port#1
1900P TX(1930~1995MHz)
1900P RX(1850~1915MHz)
MDBU
1900P:2Port
Port#2
1900P TX(1930~1995MHz)
1900P RX(1850~1915MHz)
Port#1
900I TX(935~940MHz)
900I RX(896~901MHz)
Port#2
900I TX(935~940MHz)
900I RX(896~901MHz)
Port#3
800I TX(851~869MHz)
800I RX(806~824MHz)
Port#4
800I TX(851~869MHz)
800I RX(806~824MHz)
Port#1
700PS TX(758~775MHz)
700PS RX(788~805MHz)
Port#2
700PS TX(758~775MHz)
700PS RX(788~805MHz)
Port#3
800PS TX(851~869MHz)
800PS RX(806~824MHz)
Port#4
800PS TX(851~869MHz)
800PS RX(806~824MHz)
Port#1
1900P TX(1930~1995MHz)
1900P RX(1850~1915MHz)
Dual Band
900I+800I
900I:2Port
MDBU
800I:2Port
Dual Band
700PS+800PS
700PS:2Port
MDBU
800PS:2Port
1900P+AWS‐1
Dual Band
MDBU
1900P:2Port
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AWS‐1:2Port
Port#3
AWS‐1 TX(2110~2155MHz)
AWS‐1 RX(1710~1755MHz)
Port#4
AWS‐1 TX(2110~2155MHz)
AWS‐1 RX(1710~1755MHz)
900I
Single Band
Port#1
900I TX(935~940MHz)
900I RX(896~901MHz)
MDBU
900I:2Port
Port#2
900I TX(935~940MHz)
900I RX(896~901MHz)
VHF
VHF
Tx(136~174MHz)
Rx(136~174MHz)
UHF
UHF
Tx(380~512MHz)
Rx(380~512MHz)
VHF+UHF
Dual Band
Port#1
MCDU
VHF+UHF : 1Port
At the rear of BIU, Tx input and Rx output ports are seen for each MDBU. The name of all the ports
are silk screened as "#1, #2, #3 and #4." From the table above, you need to feed correct signals tothe
input and output ports of the corresponding MDBU.
Figure 5.4 – BIU RF interface diagram
For each port, TX and RX signals are separated from each other. It is not necessary to terminate
unused ports unless you want to.
BIU interface with Base station Transceiver
Basically, the BIU has separate TX and RX portsso you have only to connect the input and output
ports.
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Figure 5.5 – BTS /BIU connections
Using a spectrum analyzer or power meter, you need to check signals sent from BTS TX. If the signals
exceed input range (‐20dBm~+10dBm), you can connect an attenuator between the BTS and BIU to
bring the signal level into range.
BIU interface with Bi‐Directional Amplifier
Since the BIU is Simplex format; you need to un‐duplex the BDA signal to properly connect it to the
BIU.
Using either duplexer or a circulator, you can separate TX/RX signals coming from the BDA
Figure 5.6 –BDA Interface using Circulator
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Figure 5.7 –BDA Interface using Duplexer
The BIU will work with the BDA in either of the methods above. TX signal level from the BDA must be
verified that it is within range of the BIU.
Given the BIU TX input range (‐20dBm~+10dBm/Total per port), verify it is within the input
range, before connecting the ports.
5.1.4 MDBU installation
MDBU is designed to be inserted into any slot.
A BIU can be equipped with a total of four MDBUs. If only one MDBU is inserted, you need to insert
BLANK cards into the other slots.
If you do not terminate input and output ports of the MCDU, which combines TX signals and
divides RX signals, it will cause out of band spurious signals. Make sure to insert MDBU BLANK cards
into the MDBU slots.
When an MDBU is inserted into the BIU, LEDs at the front panel will show the following information:
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LED
Description
Power is not supplied.
ON
Power is supplied.
Normal Operation
ALM
Abnormal Operation
Figure 5.8 –MDBU LED indicator information
MONITOR SMA port seen at the front panel of the MDBU allows you to check the current level of TX
input and RX output signals in service without affecting main signals.
TX MON is ‐20dB below TX Input power and RX MON is ‐20dB below RX Output power as well.
5.1.5 ODU Interface
The BIU supports up to four ODUs per platform. At the rear of BIU, eight RF input and output ports
for the ODUs as well as four power ports for power supply and communication are provided. As you
connect the ODUs, the BIU recognizes the ODU that is connected with BIU automatically
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Figure 5.9 –Interface port between BIU and ODU
At the rear part of the ODU, the number of RF Ports and Signal Ports are printed in order. Its a good
idea to label these in case additional ODUs are needed.
RF Port
ODU Numbering
ODU SISO
TX
RX
Signal Port
ODU 1
#1
SISO_ODU#1
ODU 2
#2
SISO_ODU#2
ODU 3
#3
SISO_ODU#3
ODU 4
#4
SISO_ODU#4
ODU 1
#1
MIMO_ODU#1
ODU 2
#2
MIMO_ODU#2
ODU 3
#3
MIMO_ODU#3
ODU 4
#4
MIMO_ODU#4
ODU MIMO
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Figure 5.10 –Cabling interface diagram between BIU and ODU
For unused RF Ports for ODU expansion, make sure to terminate them using SMA Term.
When installing an ODU above the BIU, it is recommended to leave at least 1RU of space
between the two. Heat from BIU rises and could damage the ODU.
5.1.6 BIU power consumption
The table below shows power consumption of the BIU:
Part
Unit
Consumption Power
Remark
Shelf
Common Part
MCPU
4.8 W
MPSU
MCDU
‐
2.4W
1900P+850C
16W
700LTE+AWS‐1
16W
MDBU
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1900P
12W
900I+800I
16W
700PS+800PS
16W
1900P+AWS‐1
‐
On the loadmap
900I
‐
The BIU supplies power for ODU. When you want to calculate total power consumption of the BIU,
you need to add power consumption of the ODU to the total value.
Power consumption of ODU is given in the later paragraph describing ODU.
5.2
ODU Installation
ODU should be, in any case, put on the top of BIU. This unit gets required power and RF signals from
BIU. The following table shows components of ODU:
No.
Common Part
Optional Part
Unit
Description
Remark
Shelf
Including Main Board, 19”,1U
1EA
RF Cable
SMA(F) to SMA(F), 400mm
2EA
Signal Cable
3Row(26P_F) to 3Row(26P_M),650mm
1EA
DOU
Optical Module with 4 Optic Port
Up to 2EA to be
inserted
5.2.1 ODU Shelf Installation
The ODU chassis is 1RU in height and 19” wide. It should be inserted into a 19” standard rack and
placed above the BIU leaving a 1RU gap between the ODU and the BIU.
5.2.2 ODU Power Cabling
The ODU gets power from the BIU.
When you connect a 3‐Row, 26‐pin D‐SUB Signal cable from BIU and install DOU, LED on the front
panel is lit. Through this LED, you can check state values of LD and PD of DOU.
5.2.3 ODU Optic Cabling
The ODU makes RF‐optical conversion of TX signals as well as optical‐RF conversion of RX signals.
TheODU can be equipped with up to two DOUs. One DOU supports four optical ports and one
optical port can be connected with an ROU. Optionally, only optical port 4 can be connected with
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OEU for ODU1 and ODU2. ODU3. ODU4 can not connect with OEU.
As WDM is used in the DOU, the unit can concurrently send and receive two different wavelengths
(TX:1310nm, RX:1550nm) through one strand of fiber. The DOU has SC/APC fiber connectors.
Figure 5.11 –SC/APC fiber termination
For optical adaptor, SC/APC type should be used. To preventcontamination of the fiber end, it should
be covered with a cap when not installed. The SC/APC connectors should be cleaned with alcohol
prior to installation.
5.2.4 DOU installation
Up to two DOUs can be installed in an ODU chassis. The DOU module is a Plug in Play type.
When you insert a DOU in the ODU, insert the unit into the left DOU1 slot first. The slot number is silk
screened at the left.
The following figure shows installation diagram of the ODU with one DOU inserted in it.
The following figure shows installation diagram of ODU with two DOUs inserted in it.
Figure 5.12 – ODU rear view with DOUs inserted
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When you insert DOU into ODU, insert the unit into the left DOU1 slot first. Insert a BLANK
UNIT in the unused slot.
5.2.5 ODU Power consumption
The ODU gets power from the BIU. One ODU can be equipped with up to two DOUs. Depending on
how many DOUs are installed, power consumption varies. The table below shows power
consumption of the ODU:
Part
Unit
Consumption Power
ODU_4
DOU 1 EA
14W
ODU_8
DOU 2 EA
28W
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5.3
ROU Installation
5.3.1 ROU Enclosure installation
The ROU enclosure has two options. One meets NEMA4 standard and the other is not waterproof or
dirtproof. The ROU can be mounted on a Wall easily. Rack mounting is also possibleusing special
frame. There are 3 different types and they will be explained later in this chapter. The ROU consists
of anMRU and anARU. Their dimensions are thesame.
The following shows the dimension of the mounting holes for the Wall Mount Bracket.
Figure 5.13 – Wall mount dimensions for the ROU
ROU Wall Mount Installation
There are two way to install the ROU on the wall. One is to install ROUs on the wall side by side, the
other is stack the ARU above the MRU.
Type1 : Side by Side installation
Install M8 mounting Screws roughly half way in, insert the wall mount bracket over the 2 screws and
secure it with the last 2 screws.
For convenience, the Wall Mount Bracket has mounting holes to let you easily mount an enclosure.
Screw the M6 Wrench Bolts by half at each side of the Heatsink enclosure.
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2-M8 FIXXI
NG SCREW
2-M8 FIXXI
NG SCREW
Fix
scr
ew
Figure 5.14 – ROU installation procedure side by side
Place the enclosure with the M6 Bolt on the mounting groove and mount the M6 Wrench Bolts into
the remaining mounting holes.
In this case, you will use 4 M6 Wrench Bolts.
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Figure 5.15 – ROU installation diagram side by side
For connecting cables between MRU and ARU easily, the MRU should install on left side of ARU.
Type2 : stacked installation
If space prohibits the
MRU and ARU from being mounted side by side, the units can be installed in
a stacked configuration.
Stacking the unit requires a special baracket for stacked installation
First, install the MRU on the wall , then install the bracket for stacked installation on the MRU. Finally
install the ARU on the bracket.
Completed installation diagram is as follows
Figure 5.16 – ROU installation procedure for stacked mounting
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