Huawei RTN XMC ODU Technical specifications

RTN XMC ODU
V200
Product Description
Issue Draft A
Date 2013-12-20
HUAWEI TECHNOLOGIES CO., LTD.

Copyright © Huawei Technologies Co., Ltd. 2013. All rights reserved.
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and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made between Huawei and the
customer. All or part of the products, services and features described in this document may not be within the
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Huawei Technologies Co., Ltd.
Address: Huawei Industrial Base
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About This Document
Overview
This document describes the features, functions, product structure, and installation mode of the
RTN XMC ODU, and also describes the technical specifications, frequency information of the
RTN XMC ODU.
Product Version
The following table lists the product version related to this document.
Product Name Product Version
RTN XMC ODU V200
Intended Audience
This document is intended for:
lField engineers
lSystem engineers
Change History
This provides the changes of the RTN XMC ODU Product Description.
lChanges in Draft A (2013-12-20)
This is Draft release.
Compared with issue V100 11 (2013-12-20), this issue includes the following new
information.
RTN XMC ODU
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Topic Description
Performance specifications, integrated
system Specifications, and frequency
information
Added information about the XMC-2H.
Organization
This document is organized as follows.
1 Features
The ODU is an outdoor unit of the digital microwave transmission system. It is used together
with the indoor unit (IDU) to provide multiple types of service interfaces. The ODU features
easy installation and easy maintenance.
2 Functions
The ODU, a microwave RF unit, has the function of frequency conversion and power
amplification. The ODU determines microwave frequencies of the transmitted and received
signals and is not affected by transmission service types such as the TDM Serivce and Ethernet
service.
3 Product Structure
This describes physical structure and logical structure of the ODU.
4 Installation Mode
The ODU can be installed on the antenna in two modes: direct mounting mode and separate
mounting mode.
5 Technical Specifications
This describes the technical specifications of the ODU. The technical specifications of the ODU
consist of performance, integrated system, reliability, surge protection, security, EMC and
protection grounding, and environmental specifications.
6 Frequency Information
This describes the detailed frequency information of the ODU.
Conventions
Symbol Conventions
The symbols that may be found in this document are defined as follows.
Symbol Description
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
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Symbol Description
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
Indicates a potentially hazardous situation which, if not
avoided, could result in equipment damage, data loss,
performance deterioration, or unanticipated results.
NOTICE is used to address practices not related to personal
injury.
Calls attention to important information, best practices and
tips.
NOTE is used to address information not related to personal
injury, equipment damage, and environment deterioration.
General Conventions
The general conventions that may be found in this document are defined as follows.
Convention Description
Times New Roman Normal paragraphs are in Times New Roman.
Boldface Names of files, directories, folders, and users are in
boldface. For example, log in as user root.
Italic Book titles are in italics.
Courier New Examples of information displayed on the screen are in
Courier New.
Command Conventions
The command conventions that may be found in this document are defined as follows.
Convention Description
Boldface The keywords of a command line are in boldface.
Italic Command arguments are in italics.
[ ] Items (keywords or arguments) in brackets [ ] are optional.
{ x | y | ... } Optional items are grouped in braces and separated by
vertical bars. One item is selected.
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Convention Description
[ x | y | ... ] Optional items are grouped in brackets and separated by
vertical bars. One item is selected or no item is selected.
{ x | y | ... }*Optional items are grouped in braces and separated by
vertical bars. A minimum of one item or a maximum of all
items can be selected.
[ x | y | ... ]*Optional items are grouped in brackets and separated by
vertical bars. Several items or no item can be selected.
GUI Conventions
The GUI conventions that may be found in this document are defined as follows.
Convention Description
Boldface Buttons, menus, parameters, tabs, window, and dialog titles
are in boldface. For example, click OK.
>Multi-level menus are in boldface and separated by the ">"
signs. For example, choose File > Create > Folder.
Keyboard Operations
The keyboard operations that may be found in this document are defined as follows.
Format Description
Key Press the key. For example, press Enter and press Tab.
Key 1+Key 2 Press the keys concurrently. For example, pressing Ctrl+Alt
+A means the three keys should be pressed concurrently.
Key 1, Key 2 Press the keys in turn. For example, pressing Alt, A means
the two keys should be pressed in turn.
Mouse Operations
The mouse operations that may be found in this document are defined as follows.
Action Description
Click Select and release the primary mouse button without moving
the pointer.
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Action Description
Double-click Press the primary mouse button twice continuously and
quickly without moving the pointer.
Drag Press and hold the primary mouse button and move the
pointer to a certain position.
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Contents
About This Document.....................................................................................................................ii
1 Features............................................................................................................................................1
2 Functions.........................................................................................................................................4
3 Product Structure...........................................................................................................................5
3.1 Physical Structure...........................................................................................................................................................6
3.2 Logical Structure............................................................................................................................................................8
4 Installation Mode........................................................................................................................11
5 Technical Specifications.............................................................................................................14
5.1 Performance Specifications..........................................................................................................................................16
5.2 XMC-1 ODU................................................................................................................................................................16
5.3 XMC-2 ODU................................................................................................................................................................19
5.4 XMC-2H ODU.............................................................................................................................................................33
5.5 Integrated System Specifications..................................................................................................................................37
5.6 Reliability Specifications..............................................................................................................................................39
5.7 Surge Protection Specifications....................................................................................................................................39
5.8 Security Specifications.................................................................................................................................................40
5.9 EMC and Protection Grounding Specifications...........................................................................................................40
5.10 Environmental Specifications.....................................................................................................................................40
5.10.1 Storage Environment...............................................................................................................................................40
5.10.2 Transportation Environment....................................................................................................................................42
5.10.3 Operating Environment...........................................................................................................................................43
6 Frequency Information...............................................................................................................45
6.1 XMC-1 ODU................................................................................................................................................................46
6.2 XMC-2 ODU................................................................................................................................................................50
6.3 XMC-2H ODU.............................................................................................................................................................58
RTN XMC ODU
Product Description Contents
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1 Features
The ODU is an outdoor unit of the digital microwave transmission system. It is used together
with the indoor unit (IDU) to provide multiple types of service interfaces. The ODU features
easy installation and easy maintenance.
Position of the ODU in the System
The ODU is located between the antenna system and the IDU. The antenna system, IDU, and
ODU compose the digital microwave transmission system. Figure 1-1 shows the position of the
ODU in the system.
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Figure 1-1 Position of the ODU in the system
The operating principles of the ODU are as follows:
lIn the TX direction, the ODU up-converts and amplifies the analog IF signals from the IDU
into RF signals of a specified frequency, and transmits the RF signals to the antenna system.
lIn the RX direction, the ODU down-converts and amplifies the RF signals from the antenna
system into analog IF signals, and transmits the analog IF signals to the IDU.
Uniform Interfaces
The ODU developed by Huawei adopts the same physical interfaces and software
communication protocol as Huawei IDU and supports the interconnection with devices of
multiple models.
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Easy Installation
The ODU developed by Huawei features compact and exquisite design and light weight.
Therefore, an installer can install the ODU on the pole.
Easy Maintenance
The ODU is an outdoor integrated equipment. It is easy to maintain in the following aspects:
lThe ODU has an integrated structure, with boards packed in its shell. This simplifies the
maintenance.
lAn RSSI interface is provided to test the received signal strength through a multimeter.
lThe wireless transmission KPIs such as the microwave output power and RSSI can be
monitored through the network management system.
lAlarms and performance events are provided and can be controlled and managed by the
IDU through the control channel connected to the IDU.
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2 Functions
The ODU, a microwave RF unit, has the function of frequency conversion and power
amplification. The ODU determines microwave frequencies of the transmitted and received
signals and is not affected by transmission service types such as the TDM Serivce and Ethernet
service.
The ODU supports the following features:
lVarious channel spacing.
lVarious modulation formats.
lAdaptive modulation (AM) function.
lAdjustment of TX/RX frequencies through software.
lAdjustment of TX power through software.
lTemperature detection.
lTX power detection.
lRX power detection.
lReceived Signal Strength Indicator (RSSI) interface:
The ODU has an RSSI interface, which indicates the RX power in voltage.
lMute transmission.
lAutomatic Transmit Power Control (ATPC).
lRemote Transmission Power Control (RTPC).
lAutomatic Gain Control (AGC) function of received signals:
The ODU automatically adjusts the channel gain according to the level of received signals.
RTN XMC ODU
Product Description 2 Functions
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3 Product Structure
About This Chapter
This describes physical structure and logical structure of the ODU.
3.1 Physical Structure
The ODU hardware consists of the multiplexer unit, receiver, transmitter, duplexer, control unit,
and power module.
3.2 Logical Structure
The ODU consists of the following logical subsystems: multiplexer subsystem, IF subsystem,
microwave subsystem, duplexer subsystem, control subsystem, and power subsystem.
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3.1 Physical Structure
The ODU hardware consists of the multiplexer unit, receiver, transmitter, duplexer, control unit,
and power module.
Hardware Structure
Figure 3-1 shows the hardware structure of the ODU.
Figure 3-1 Hardware structure of the ODU
The ODU is composed of a microwave module and a power module.
lThe microwave module comprises the multiplexer unit, receiver, transmitter, and control
unit.
Interface
The ODU provides six interfaces, as shown in Table 3-1.
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Table 3-1 Interfaces of the ODU
Interface
Name
Interface Type Description
Antenna
interface
153IEC-R70, can be interconnected
with the PDR70 (6 GHz frequency
band)
153IEC-R84, can be interconnected
with the PBR84 (7/8 GHz frequency
band)
153IEC-R100, can be interconnected
with the PBR100 (10/11 GHz
frequency band)
153IEC-R120, can be interconnected
with the PBR120 (13 GHz frequency
band)
153IEC-R140, can be interconnected
with the PBR140 (15 GHz frequency
band)
153IEC-R220, can be interconnected
with the PBR220 (18/23/26 GHz
frequency band)
154IEC-R320, can be interconnected
with the PBR320 (28/32/38 GHz
frequency band)
UG 383/U-R400, can be
interconnected with the UG 383/U-
R400 (42 GHz frequency band)
The antenna interface is a
waveguide interface that is
connected to an antenna, a hybrid
coupler, an antenna adapter, or a
flexible waveguide.
IF interface N type (female) The IF interface is connected to the
IDU through an IF cable.
RSSI interface BNC type (female) The received signal strength of the
ODU can be calculated based on the
voltage of the interface that is
measured through a multimeter.
NOTE
lThe RSSI interface on the
XMC-2H ODU has two holes for
connection. The two holes work in
active/standby mode. The one in
active mode is used for
commissioning, and the one in
standy mode is reserved.
Grounding
screw
M5 screw The grounding screw is connected
to the PGND cable.
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3.2 Logical Structure
The ODU consists of the following logical subsystems: multiplexer subsystem, IF subsystem,
microwave subsystem, duplexer subsystem, control subsystem, and power subsystem.
System Structure
Figure 3-2 shows the system structure of the ODU.
Figure 3-2 System structure of the ODU
The logical subsystems have the following functions:
lMultiplexer subsystem:
This subsystem performs the combining and dividing functions with the IDU interactive
signals.
lIF subsystem:
This subsystem implements functions such as the frequency conversion, filtering, power
amplification, and AGC on the TX/RX IF signals.
lMicrowave subsystem:
This subsystem implements functions such as the frequency conversion, filtering, power
amplification, and AGC on the TX/RX RF signals.
lDuplexer subsystem:
This subsystem implements functions such as antenna sharing, filtering, and isolation on
the TX/RX RF signals.
lControl subsystem:
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This subsystem implements functions such as output power control, RX gain control,
channel selection, fault alarm reporting, status setting, and status querying. The subsystem
communicates with the IDU and provides alarm information.
lPower subsystem:
This subsystem contains protective circuits such as the surge protection circuits and EMC
circuits. It converts the -48V input power into multiple DC power outputs. These power
outputs are filtered and provided to each part of the ODU.
Working Principles
Figure 3-3 shows the working principles of the ODU.
Figure 3-3 Working principles of the ODU
The ODU is located between the IDU and the antenna system, implementing the functions of
frequency conversion and amplification of signals. The working principles of the ODU are as
follows:
lProcessing of the signals to be transmitted
The multiplexer unit divides the input signals transmitted through the IF cable into the 350
MHz IF TX signals, O&M uplink signals, and -48 V DC power signals.
The IF TX signals are processed as follows:
1. The IF TX signals are up-converted, filtered, and amplified to RF TX signals. Then,
the RF TX signals are sent to the AMP unit.
2. The AMP unit amplifies the power of the RF TX signals. The power of the RF TX
signals can be controlled by the IDU software.
3. The amplified RF TX signals are sent to the antenna through the duplexer isolation
unit.
The O&M uplink signals are the 5.5 MHz signals modulated in Amplitude Shift Keying
(ASK) mode. The signals are sent to the CTRL unit and demodulated.
The -48 V DC power signals are sent to the PWR unit. The PWR generates secondary power
supplies for each module of the ODU.
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lProcessing of the received signals
1. The duplexer isolation unit separates the RF input signals from other signals received
by the antenna.
2. The RF signals are amplified through the Low Noise Amplifier (LNA) unit.
3. The amplified RF signals are down-converted, filtered, and amplified to 140 MHz IF
RX signals and transmitted to the multiplexer unit.
4. The multiplexer unit combines the IF RX signals and O&M downlink signals and then
transmits the combined signals to the IDU through IF cable.
The CTRL unit performs the ASK modulation on the O&M downlink signals to generate
10 MHz signals. The modulated signals are transmitted to the multiplexer unit. The CTRL
unit provides the RSSI interface and monitors the RX level through the RSSI circuit.
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4 Installation Mode
The ODU can be installed on the antenna in two modes: direct mounting mode and separate
mounting mode.
Direct Mounting Mode
When the small-diameter and single-polarized antenna is used, the direct mounting mode is
usually adopted. In this case, if one ODU uses one antenna, the ODU should be installed at the
back of the antenna. If two ODUs share one antenna, one RF signal combiner-divider (hereinafter
referred to as hybrid coupler) should be added between the antenna and the ODU.
NOTE
Use a hybrid coupler adaptive to the XMC ODU if two ODUs are configured with only one antenna installed
in direct-mounting mode.
Figure 4-1 shows the direct mounting mode.
Figure 4-1 Direct mounting mode
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Separate Mounting Mode
When the dual-polarized antenna or the large-diameter and single-polarized antenna is used, the
separate mounting mode is adopted. In this case, two ODUs can share one feed boom by adding
a hybrid coupler.
In separate mounting mode, the ODU separated mounting bracket is used to fix the ODU or
hybrid coupler on the pole. The ODU or hybrid coupler and the antenna are connected through
a flexible wave guide.
Figure 4-2 shows the separate mounting mode using a single-polarized antenna.
Figure 4-2 Separate mounting mode using a single-polarized antenna
Figure 4-3 shows the separate mounting mode using a dual-polarized antenna.
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