HUAWE microwave transmission system OptiX RTN 905 split structure Specifications

HUAWE microwave transmission system OptiX RTN 905 split structure

Specifications

The OptiX RTN 905 provides a seamless microwave transmission solution for mobile communication network or private networks.

The OptiX RTN 905 adopts a split structure. The system consists of the IDU 905 and the ODU. Each ODU is connected to the IDU 905 through an IF cable.

Features of the IDU 905

Item	Description
Type	IDU 905 1A	IDU 905 2A	IDU 905 1C
Chassis height	1U
Extended sub card	Not supported		An extended sub-slot is reserved.
Service interface	4 x GE electronic interface 2 x GE/FE optical interface or GE electrical interface (SFP) 16 x E1 interface 2 x TDM cascading interface		4 x GE electronic interface 2 x GE/FE optical interface or GE electrical interface (SFP) 16 x E1 interface 1 x multifunction cascading interface and 1 x TDM cascading interface 2 x STM-1 interface
Radio type	Integrated IP radio (E1 + Ethernet)		Integrated IP radio (E1 + Ethernet) Integrated IP radio (STM-1 + Ethernet) SDH radio
Highest modulation	1024QAM
Number of IF/RF channels	1	2	1
RF configuration mode	1+0	2x(1+0) 2+0 1+1 HSB/FD/SD XPIC	1+0 1+1 HSB/FD/SD (NE cascading) XPIC (NE cascading)

RTN XMC ODUs that the OptiX RTN 905supports

Item	Description
	High-Power ODU	Low Capacity ODU
ODU type	XMC-2	XMC-1
Frequency band	6/7/8/11/13/15/18/23/26/28/32/38/42 GHz	7/8/11/13/15/18/23 GHz
Microwave modulation scheme	QPSK/16QAM/32QAM/64QAM/128QAM/256QAM/512QAM/1024QAM (6/11/13/15/18/23/26/28/32/38/42 GHz) QPSK/16QAM/32QAM/64QAM/128QAM/256QAM (7/8 GHz)	QPSK/16QAM
Channel spacing	7/14/28/40/50/56 MHz	3.5/7/14/28 MHz

 

RTN 600 ODUs that the OptiX RTN 905supports

Item	Description
	High-Power ODU	Standard Power ODU
ODU type	HP, HPA	SP, SPA
Frequency band	6/7/8/10/10.5/11/13/15/18/23/26/28/32/38 GHz (HP) 6/7/8/11/13/15/18/23 GHz (HPA)	7/8/11/13/15/18/23/26/38 GHz (SP ODU) 6/7/8/11/13/15/18/23 GHz (SPA ODU)
Microwave modulation scheme	QPSK/16QAM/32QAM/64QAM/128QAM/256QAM	QPSK/16QAM/32QAM/64QAM/128QAM/256QAM
Channel spacing	7/14/28/40/56 MHz (6/7/8/10/11/13/15/18/23/26/28/32/38 GHz) 7/14/28 MHz (10.5 GHz)	3.5/7/14/28 MHz

Logical boards of the IDU 905 1A/2A

Board Acronym	Board Name	Logical Slot	Description
CSHI	Hybrid system control, switching, and timing board	Slot 1	Supports the 8 Gbit/s packet switching. Supports unblocked E1 cross-connections (The IDU 905 1A supports 171 cross-connections, and the IDU 905 2A supports 234 cross-connections.) Performs system communication and control. Processes clock and time signals. Provides two external clock input/output interfaces and one external time input or output interface. The first external clock interface shares a port with the external time interface. Provides one Ethernet NM interface, one NM serial interface, and one NM cascading interface. Provides one Huawei outdoor cabinet monitoring interface that shares a port with the external time interface. Provides one USB interface for software upgrade and data backup.
ISU3	Universal IF board	Slot 3	Provides one IF interface. Supports QPSK to 1024QAM modulation with QPSK/16QAM strong FEC and 512QAM/1024QAM light FEC when interconnected with the OptiX RTN 905 or ISV3 boards of the OptiX RTN 910/950/950A/980. Supports QPSK to 256QAM modulation when interconnected with ISU2/ISX2 boards of the OptiX RTN 910/950/950A/980. Supports integrated IP microwave in Native E1+Ethernet service mode. Supports the AM function. Supports Ethernet frame header compression.
ISV3	Versatile IF board	Slot 3/4	Provides one IF interface. Supports QPSK to 1024QAM modulation with QPSK/16QAM strong FEC and 512QAM/1024QAM light FEC when interconnected with the OptiX RTN 905 or ISV3 boards of the OptiX RTN 910/950/950A/980. Supports QPSK to 256QAM modulation when interconnected with ISU2/ISX2 boards of the OptiX RTN 910/950/950A/980. Supports integrated IP microwave in Native E1+Ethernet service mode. Supports the XPIC function. Supports the AM function. Supports Ethernet frame header compression. Supports the PLA function.
EG6	4-port RJ45 + 2-port SFP Gigabit Ethernet interface board	Slot 7	Provides six GE interfaces, of which four can be only RJ45 GE electrical interfaces, and the other two can be GE/FE optical interfaces or GE electrical interfaces provided by SFP module. The GE electrical interfaces are compatible with the FE electrical interfaces.
TS2	2-port TDM cascading interface board	Slot 8	Provides two TDM cascading interfaces, each of which transmits 46xE1 services, DCN signals and clock signals. Uses SFP cables to connect TDM cascading interfaces to other OptiX RTN 905 NEs.
SP3S	16xE1 tributary board	Slot 9	Provides sixteen 75-ohm or 120-ohm TDM E1 interfaces.
AUX	Auxiliary interface board	Slot 10	Provides one asynchronous data interface, and three-input and one-output external alarm interfaces.
PIU	Power board	Slot 5	Provides two -48 V/-60 V DC power inputs.
FAN	Fan board	Slot 6	Cools and ventilates the IDU.

List of logical boards for the IDU 905 1C

Board Acronym	Board Name	Logical Slot	Description
CSHP	Hybrid system control, switching, and timing board	Slot 1	Supports the 8 Gbit/s packet switching. Supports full time division cross-connections for VC-12/VC-3/VC-4 services equivalent to 8x8 VC-4s. Performs system communication and control. Processes clock and time signals. Provides two external clock input/output interfaces and one external time input or output interface. The first external clock interface shares a port with the external time interface. Provides one Ethernet NM interface, one NM serial interface, and one NM cascading interface. Provides one Huawei outdoor cabinet monitoring interface that shares a port with the external time interface. Provides one USB interface for software upgrade and data backup.
ISV3	Versatile IF board	Slot 3	Provides one IF interface. Supports QPSK to 1024QAM modulation with QPSK/16QAM strong FEC and 512QAM/1024QAM light FEC when interconnected with the OptiX RTN 905 or ISV3 boards of the OptiX RTN 910/950/950A/980. Supports QPSK to 256QAM modulation when interconnected with ISU2/ISX2 boards of the OptiX RTN 910/950/950A/980. Supports integrated IP microwave and SDH microwave. The supported service modes are Native E1+Ethernet, Native STM-1+Ethernet or SDH. Supports the XPIC function. Supports the AM function. Supports Ethernet frame header compression. Supports the PLA function.
EG6	4-port RJ45 + 2-port SFP Gigabit Ethernet interface board	Slot 7	Provides six GE interfaces, of which four can be only RJ45 GE electrical interfaces, and the other two can be GE/FE optical interfaces or GE electrical interfaces provided by SFP module. The GE electrical interfaces are compatible with the FE electrical interfaces.
VS2	2-port versatile cascading interface board	Slot 8	Provides two cascading ports for transmitting service signals, DCN signals, and clock signals. On two interconnected OptiX RTN 905 NEs, cascading ports on are connected with an SFP cable. The first cascading port is multifunctional cascading port and can function as a TDM cascading port (transmitting 46xE1 signals), cascading port for 1+1 protection (transmitting HSM signals), or cascading port for PLA protection (PLA signals). The second cascading port can functions only as a TDM cascading port (transmitting 46xE1 signals).
MP1	16xE1 tributary board	Slot 9	Provides sixteen 75-ohm or 120-ohm E1 interfaces, which currently support TDM E1 services.
CD1	2xSTM-1 interface board	slot 15	Uses SFP modules to provide two STM-1 optical/electrical interfaces.
AUX	Auxiliary interface board	Slot 10	Provides one asynchronous data interface. Provides three-input and one-output external alarm interfaces.
PIU	Power board	Slot 5	Provides two -48 V/-60 V DC power inputs.
FAN	Fan board	Slot 6	Cools and ventilates the IDU.

ODU

The ODU is an integrated system that is available in several models. The architectures and working principles of the various ODU models are similar.

Signal Processing in the Transmit Direction

The multiplexer splits the signal from the IF cable into a 350 MHz IF signal, a 5.5 MHz O&M uplink signal, and a -48 V DC power signal.
In the transmit direction, the IF signal is processed as follows:

1. After the up-conversion, filtering, and amplification are completed, the IF signal is converted into the RF signal and then is sent to the AMP amplifier unit.
2. The AMP amplifies the RF signal (the output power of the signal can be controlled by the IDU software).
3. After the amplification, the RF signal is sent to the antenna through the duplexer.

The O&M uplink signal is a 5.5 MHz ASK-modulated signal and is demodulated in the CTRL control unit.
The -48 V DC power signal is sent to the PWR power unit where the secondary power supply that uses a different voltage is generated and provided to the modules of the ODU.

Signal Processing in the Receive Direction

The duplexer separates the RF signal from the antenna signal. The RF signal is amplified in the low noise amplifier (LNA). After the down-conversion, filtering, and amplification are completed, the RF signal is converted into the 140 MHz IF signal and then is sent to the multiplexer.
The O&M downlink signal is modulated under the ASK scheme in the CTRL unit. The 10 MHz signal is generated through the modulation and is sent to the multiplexer. The CTRL unit also detects the received signal power through the RSSI detection circuit and provides the RSSI interface.
The IF signal and the O&M downlink signal are combined in the multiplexer and then are sent to the IDU through the IF cable.

Functions and Features

The OptiX RTN 905 provides a wide assortment of functions and features to ensure the quality and efficiency of service transmission.

• Microwave Types
  The OptiX RTN 905 1A/2A supports Integrated IP radio microwave, and the OptiX RTN 905 1C supports Integrated IP radio microwave and SDH microwave.
• Modulation Strategy
  OptiX RTN 905 supports fixed modulation and adaptive modulation.
• RF Configuration Modes
  The OptiX RTN 905 supports multiple RF configuration modes.
• Capacity
  The OptiX RTN 905 is a high-capacity device.
• Interfaces
  The OptiX RTN 905 provides a variety of interfaces.
• Cross-Polarization Interference Cancellation
  Cross-polarization interference cancellation (XPIC) technology is used together with co-channel dual-polarization (CCDP). The application of the two technologies doubles the wireless link capacity over the same channel. The OptiX RTN 905 2A supports XPIC function. The OptiX RTN 905 1C supports XPIC function by means of NE cascading.
• Automatic Transmit Power Control
  Automatic transmit power control (ATPC) enables the output power of the transmitter to automatically trace the level fluctuation at the receive end within the ATPC control range. This feature reduces the interference with neighboring systems and residual BER.
• MPLS/PWE3 Function
  The OptiX RTN 905 supports MPLS switching and Ethernet PWE3 function, therefore to implement packet transmission of carrier-class services.
• Ethernet Service Processing Capability
  The OptiX RTN 905 has powerful Ethernet service processing capability.
• QoS
  The OptiX RTN 905 provides improved quality of service (QoS) and supports the following eight types of per-hop behaviors (PHBs): BE, AF1, AF2, AF3, AF4, EF, CS6, and CS7. Therefore, network carriers can offer various QoS levels of service guarantees and build networks that carry data, voice, and video services.
• Clock Features
  The OptiX RTN 905 supports physical-layer clock synchronization, time synchronization over packet networks, and IEEE 1588v2 time synchronization, meeting the clock and time synchronization requirements of mobile networks. In addition, the OptiX RTN 905 provides an advanced clock protection mechanism.
• Protection Capability
  The OptiX RTN 905 provides a variety of protection schemes.
• Network Management
  The OptiX RTN 905 supports multiple network management (NM) modes and provides comprehensive NM information exchange schemes.
• Easy Installation
  The OptiX RTN 905 supports several installation modes. That is, the installation is flexible and convenient.
• Easy Maintenance
  The OptiX RTN 905 provides plentiful maintenance features.
• Security Management
  The OptiX RTN 905 can prevent unauthorized logins and operations, ensuring equipment management security.
• Energy Saving
  The OptiX RTN 905 uses various types of technologies to reduce the amount of energy that the device consumes. The device:
• Environmental Protection
  The OptiX RTN 905 is designed to meet or exceed environmental protection requirements. The product complies with the RoHS directive and WEEE directive.