optix rtn 900 v100r002 product description-20100223-a

OptiX RTN 900 V100R002 Product Description
Copyright © 2006 Huawei Technologies Co., Ltd. All rights reserved.
Page *
About This Document
The OptiX RTN 900 is a new generation split microwave transmission system developed by Huawei. It can provide a solution that is integrated with the TDM microwave, Hybrid microwave, and Packet microwave based on the network requirements. RTN 900 V1R1 support pure packet microwave, and RTN 900 V1R2 support TDM microwave and Hybrid microwave.
This course introduces the evolution process of microwave products and the packet microwave features, functions, hardware features, and version matching of the RTN 900 V1R2. Through this course, you can have a general understanding about the RTN 900 V1R2.
Page *
Page *
Objectives
Evolution of microwave products
Functions of the OptiX RTN 900 V100R002
Hardware features of the OptiX RTN 900 V100R002
Version matching of the OptiX RTN 900 V100R002
Page *
Contents
Development of the IP RAN and Evolution of Microwave Transmission
Features of Packet Microwave
Page *
Advent of the IP Age
2G -> 3G -> 3G+ ->LTE, the backhaul of mobile base stations evolves from TDM to IP.
Microwave transport networks evolve from the traditional TDM microwave network to the packet microwave network.
eNodeB
eNodeB
eNodeB
NodeB
NodeB
NodeB
BTS
BTS
BTS
BSC
RNC
aGW
X2
X2
Page *
TDM Microwave:
PDH microwave is used for access; SDH microwave is used for convergence.
Ethernet services are transmitted in the space through the EOS technology.
It supports the fixed modulation scheme from QPSK to 128QAM, and features small capacity.
It is used in 2G and early stages of 3G networks.
Hybrid Microwave:
Native TDM + Native Ethernet
It supports the modulation scheme from QPSK to 256QAM and the AM function, and features high bandwidth.
It is used in scenarios where TDM and IP networks coexist at the initial stage of the transition from 2G networks to 3G networks. At this stage, voice services are primary and data services are secondary among mobile services. Adding the packet switching capability to the original TDM microwave equipment is undoubtedly the preferred solution at the transition stage of the mobile transport network evolution. In this way, investment in original equipment can be protected and existing voice services can be transported.
Packet Radio:
It is pure packet microwave.
It supports the modulation scheme from QPSK to 256QAM and the AM function, and features high bandwidth.
It is used at the All-IP stage of 3G networks. The pure packet microwave is the best choice for a carrier who needs to build a new mobile IP transport network.
IDU
Packet
based
TDM
ETH
The early 2G and 3G networks focus on voice services. At that time, new backhaul networks were built or E1 networks were rented. On the backhaul networks, the service transmission bandwidth is fixed. The usage of the air-interface bandwidth of the traditional TDM microwave is low. In the model focusing on voice services, however, the weaknesses of the traditional TDM microwave are not obvious. With the popularization of 3G networks, especially with the rapid development of mobile broadband services such as HSPA, the bandwidth of the Iub interface in the 3G NodeBs increases and changes dynamically. As a result, the weaknesses of the TDM microwave are exposed. It is predicted that the required transmission bandwidth on the local mobile network in 2012 will be higher than that in 2007 by four times due to the increase in data services. There is no doubt that the existing TDM microwave system cannot meet the requirements for explosive bandwidth increase.
When mobile services are dominated by data services and the IP-based interfaces are used, the Hybrid microwave can also support the pure packet mode to maximally prolong the lifecycle of products, thus saving investments for carriers. With the rapid development of all-IP mobile broadband services, data services develop rapidly. As a result, the capacity of the Hybrid microwave equipment gradually fails to meet the increasing bandwidth requirements, but the Hybrid microwave equipment can be smoothly evolved to the pure packet microwave equipment that completely supports data services.
With the evolution trend of the transmission of mobile broadband services, the rented E1 links fail to meet the requirements for multi-service transmission, high-precise timing, and high-QoS transmission. In addition, line renting fees and maintenance fees are high. As a result, the mobile carriers that lack transmission resources want to build a mobile IP transport network during 3G network construction. In this case, the best choice is to use the pure packet microwave.
Page *
Evolution of Microwave Transmission Network
When microwave transport networks evolve towards packet transport networks inevitably, it is a most cost-effective solution for carriers to evolve microwave transport networks from traditional TDM microwave networks to hybrid microwave networks, and then to pure packet microwave networks. This solution combines strengths such as protecting investment in existing networks, flexible upgrade, and compatibility. If carriers need to build new mobile IP transport networks, the best choice is to use advanced pure packet microwave equipment to transport future All IP services.
Page *
Page *
Contents
Page *
Radio Link Forms
The OptiX RTN 900 V1R2 provides the radio links of different forms by flexibly configuring different IF boards and ODUs to meet the requirements of different microwave application scenarios. Different radio link forms of OptiX RTN 900 V1R2 support different types of microwaves. The radio link form of the TDM microwave supports the PDH microwave and the SDH microwave. The radio link form of the Hybrid microwave support the Hybrid microwave.
The PDH microwave refers to the microwave that transmits only the PDH services (mainly, the E1 services). During the transmission, the PDH microwave does not change the features of the PDH services.
The SDH microwave refers to the microwave that transmits SDH services. During the transmission, the SDH microwave does not change the features of the SDH services.
The Hybrid microwave refers to the microwave that transmits native E1 services and native Ethernet services in hybrid mode. The Hybrid microwave supports the AM function. During the transmission, the Hybrid microwave does not change the features of the E1 services and Ethernet services.
Page *
TDM Microwave
The PDH microwave refers to the microwave that transmits only the PDH services (mainly, the E1 services). During the transmission, the PDH microwave does not change the features of the PDH services. Unlike the conventional PDH microwave equipment, the RTN 900 V1R2 has a built-in MADM. The MADM grooms the E1 services to the microwave port for further transmission. Thus, the services can be groomed flexibly and seamless convergence between the optical network and the microwave network is achieved.
The SDH microwave refers to the microwave that transmits SDH services. During the transmission, the SDH microwave does not change the features of the SDH services.
Unlike the conventional SDH microwave equipment, the RTN 900 V1R2 has a built-in MADM. The MADM grooms services to the microwave port through cross-connections, maps the services into the STM-1-based microwave frames, and then transmits the STM-1-based microwave frames. Thus, the services can be groomed flexibly and seamless convergence between the optical network and the microwave network is achieved.
Page *
Channel Spacing (MHz)
Page *
The Capacity of TDM Microwave (Cont.)
If the radio link form is the SDH/PDH microwave, the maximum capacity of each channel of microwave is STM-1.
Page *
Hybrid Microwave
The Hybrid microwave refers to the microwave that transmits native E1 services and native Ethernet services in hybrid mode. The Hybrid microwave supports the AM function. During the transmission, the Hybrid microwave does not change the features of the E1 services and Ethernet services.
The RTN 900 V1R2 has a built-in MADM and a packet processing platform. The MADM transmits E1 services that are accessed locally or extracted from the SDH to the microwave port. After processing the accessed Ethernet services in the unified manner, the packet processing platform transmits the Ethernet services to the microwave port. The microwave port maps the E1 services and the Ethernet services into Hybrid microwave frames and then transmits the Hybrid microwave frames.
A Hybrid microwave frame has the following features:
The length of a Hybrid microwave frame does not change in the given modulation scheme/channel spacing.
In the Hybrid microwave frame, each E1 service occupies the fixed bandwidth so that the Hybrid microwave does not change the features of the E1 service during transmission.
In the Hybrid microwave frame, Ethernet services occupy the remaining bandwidth. Ethernet frames are encapsulated and adapted. Thus, during transmission, the Hybrid microwave does not change the features of the Ethernet services.
Page *
Service Transmission Mode
The Hybrid microwave defines different types of Hybrid microwave frames for different working modes. The accessed E1 services and Ethernet services are multiplexed into the same Hybrid microwave frame, and then transmitted to the ODU through the IF interface after IF coding and modulation. The E1 services and the Ethernet services are transmitted to the remote end through the microwave after the up-conversion.
The features of the Hybrid microwave frame are as follows:
The frames with a fixed period are used for transmission.
In the specific modulation mode or channel spacing, the length of Hybrid microwave frames remains unchanged.
The E1 services in Hybrid microwave frames occupy a fixed bandwidth (when N E1 services are transmitted, the bandwidth of N E1 services is occupied). Thus, the Hybrid microwave does not change the features of the E1 services during transmission.
In Hybrid microwave frames, the Ethernet services occupy the remaining bandwidth of the E1 services. The encapsulation adaptation processing of the Ethernet frames is performed, so the Hybrid microwave does not change the features of the Ethernet services during transmission.
The hybrid transmission of native E1 services and native Ethernet services in the Hybrid microwave is supported.
This slide further clarifies how Huawei Hybrid Radio can increase the TDM capacity by 15%. The graph shows the comparison between legacy PDH/SDH Microwave and Huawei Hybrid radio. Besides, our Hybrid Radio can be flexibly upgraded using software from 4E1 to 75E1 TDM traffic per carrier. This greatly increases the overall performance of the Network.
15%=(75-63)/63
Page *
Port Throughput (Mbit/s)
Page *
Page *
Capacity of the Hybrid Microwave Service (Cont.)
If the radio link form is the Hybrid microwave, the maximum capacity of each channel of microwave is 363 Mbit/s when the high power ODU is used or 183 Mbit/s when the standard power ODU is used. If the XPIC technology is used, the service capacity of the microwave channel can be doubled with same the spectrum bandwidth.
Page *
Modulation Modes
The TDM microwave only supports fixed modulation. The Hybrid microwave supports fixed modulation and adaptive modulation (AM).
The fixed modulation refers to a modulation scheme wherein a modulation scheme is adopted invariably when the radio link is running. When the fixed modulation is adopted, the modulation scheme can be configured through software. A modulation scheme can range from QPSK to 256QAM.
The AM is a technology through which the modulation scheme can be adjusted automatically according to the channel quality. When the AM is adopted, the lowest modulation mode (also called reference mode) and highest modulation scheme (also called nominal mode) can be configured through software.
Capacity
Time
99.999%
Voice
Page *
AM Technology
Through the AM technology, the Hybrid microwave uses a high-efficiency modulation scheme when the channel is of better quality. Hence, more user services can be transmitted and thus the transmission efficiency and spectrum utilization are improved. When the quality of the channel is degraded, the Hybrid microwave uses the low-efficiency modulation scheme, in which only the services of a high priority are transmitted. Hence, the anti-interference capability of links is enhanced and availability of the links on which the high-priority services are transmitted is ensured.
E1 services are of the highest priority in the AM-based Hybrid microwave transmission. Ethernet services are classified into flows of different priorities based on the CoS technology. When the Hybrid microwave uses the lowest-efficiency modulation scheme, the equipment transmits E1 services only (if the service bandwidth is higher than the total bandwidth of the E1 services, the Ethernet services of a high priority can be transmitted). When the Hybrid microwave uses other modulation schemes, the increased bandwidth can be used to transmit Ethernet services. In this case, availability of the links on which the E1 services and Ethernet services of a high priority are transmitted can be ensured and the capacity for transmitting Ethernet services increases.
When the Hybrid microwave uses the lowest-gain modulation scheme, the equipment transmits only E1 services. (If the service bandwidth is higher than the bandwidth of the E1 services, the Ethernet services with higher priorities can also be transmitted.) When the Hybrid microwave uses another modulation scheme, the increased bandwidth is used to transmit Ethernet services.
The preceding figure shows the transmission mode of the Hybrid microwave. The part in orange indicates E1 services. The part in blue indicates Ethernet services. In addition, the part in blue that is close to the edge indicates the Ethernet services with lower priorities. In a certain channel condition, the E1 services (the part in orange) occupy the fixed bandwidth, thus ensuring the availability of the E1 services. The bandwidth of the Ethernet services (the part in blue) changes with the channel condition. When the channel quality is poor, the Ethernet services with lower priorities are discarded. When the Hybrid microwave transmits only Ethernet services, the bandwidth occupied by E1 services is preempted by the Ethernet services with higher priorities.
Page *
AM Implementation
Before switching
When the SNR value received at the receive end is lower than the threshold, the receive end transmits quality degradation indication signals to the AM engine.
The AM engine at the receive end places switching indication signals to the overheads of a Hybrid microwave frame. The switching indication signals are transmitted to the local end through the transmit path.
The IF unit at the transmit end processes IF signals, and transmits the switching indication signals of the AM to the AM engine.
The AM engine transmits the switching indication signals to the service signal processing unit and the IF signal modulation unit, indicating that the service signal processing unit and the IF signal modulation unit complete the switching of service frames and the change of modulation schemes after frame N.
After the modulation scheme changes, the bandwidth of E1 services does not change. The Ethernet services with higher priorities are multiplexed into microwave frames based on the QoS. Thus, the remaining bandwidth of the microwave frames is used to transmit the Ethernet services with lower priorities.
Due to the switching to the low modulation scheme, the bandwidth of the Ethernet services that are multiplexed into the multiplex unit becomes low, and the bandwidth of the Hybrid microwave frames also becomes low.
After switching
The AM engine is the core for controlling AM switching. On one hand, the local AM engine communicates with the remote AM engine through the information path provided by microwave links so that the signal quality information at the receive end is transmitted to the transmit end. On the other hand, the local AM engine determines the next modulation mode attribute for the AM switching by analyzing the current link quality. When the modulation mode switching is required, the AM engine provides AM switching indication signals to the signal transmission path.
Page *
Detected SNR Increased
Prepare to Switch to 64QAM
The AM technology can use the QPSK, 16QAM, 32QAM, 64QAM, 128QAM, and 256QAM modulation schemes.
The lowest modulation scheme (also called reference mode) and highest modulation scheme (also called nominal mode) can be configured.
When the modulation schemes of the AM are switched, the transmit frequency, receive frequency, and channel spacing do not change.
When the AM modulation scheme is switched, the step by step mode is adopted.
When the AM switches the modulation scheme, the services with a low priority are discarded but no bit errors or slips occur in the services with a high priority. The speed of switching the modulation scheme meets the requirement for no bit error in the case of 100 dB/s fast fading.
Modulation
Bandwidth
Capacity
32QAM
28MHz
32QAM
This slide further shows how the modulation of the link changes with the change in weather. As you can see during good weather condition, the link is in a state of 64 QAM and link capacity is 150 Mbit/s; As the weather gets worse, the receiver detects the decrease in SNR (signal to noise ratio) and sends this message to the transmitter to lower the modulation scheme. The switch in modulation depends on predefined threshold of air link SNR. Then the modulation scheme is switched to 32 QAM in transmitter and receiver simultaneously. The link capacity also decreases to 100 Mbit/s. Once the weather gets better the modulation scheme switches back to 64 QAM. The modulation message between the transmitter and the receiver ensures the hitless switching.
Page *
User 3
The Hybrid microwave ensures the service reliability and optimizes the service capacity through the hybrid transmission of E1 services and Ethernet services, AM, and Ethernet QoS control.
Internet
Page *
Type of the System Control, Cross-Connect, and Timing Board
CST/CSH
CSH
CSH
IF1
IFU2
IFX2
1+1HSB/FD/SD, N+1
Ethernet supported or not
Page *
Contents
Page *
Product Package
Features
The OptiX RTN 900 V100R002 is a new-generation hybrid/TDM MW transmission product developed by Huawei on the basis of the universal platform that integrates TDM, Hybrid, and Packet. This product supports features such as AM, synchronous Ethernet, Ethernet ring, and air interface LAG. Huawei is the only supplier that provides the MW transmission product integrating TDM, Hybrid, and Packet in the industry. Smooth evolution: The universal platform supports the smooth evolution of TDM -> Hybrid -> Pure Packet. Hybrid ring protection: Hybrid ring protection is implemented by jointly using the E1 SNCP and Ethernet ring protection switching (ERPS). The E1 SNCP and ERPS are independent of each other. XPIC: When the XPIC and CCDP technologies are used, the transmitter transmits two electromagnetic waves whose polarization directions are orthogonal to each other to the receiver over the same channel. The receiver recovers the original two channels of signals after eliminating the interference between the two electromagnetic waves through the XPIC technology. In this manner, the transmission capacity is doubled.
Page *
Product Package
Features
. Eight QoS levels: Each Ethernet port supports eight levels of priority queue scheduling, that is, eight standard PHBs: BE, AF1, AF2, AF3, AF4, EF, CS6, and CS7. Modulation scheme: QPSK-256QAM (7 MHz to 56 MHz). It supports two modulation modes: fixed modulation and adaptive modulation (AM). AM dynamically works with QoS to ensure fine service quality. Synchronous Ethernet: compliant with ITU-T G.8261, 8262, and 8264. The locked state is accurate to be smaller than 50 ppb, which meets the requirement. Dynamic or static MW routing configuration of E2E OAM&P and E2E enhances the flexibility of MW networks and reduces the cost for maintenance. Network-level protection schemes such as ERPS and MSTP are supported. The OptiX RTN 910 is built in with a packet processing platform with an exchange capacity of 4.2 Gbit/s. The OptiX RTN 950 is built in with a packet processing platform with an exchange capacity of 10 Gbit/s.
Page *
Data Capability
E-LINE
E-LAN
Microwave type (TDM microwave, Hybrid microwave)
AM function
Control, switching, and clock board 1+1 hot backup
Large capacity: 156E1, 1.6G
Multi-service access capability (E1/FE/GE/STM-1)
Page *
1xSTM1
363 Mbit/s
Cross-connect capacity
Full time-division cross-connections at the VC-12, VC-3, or VC-4 level, which are equivalent to 32x32 VC-4s
OptiX RTN 950
Full time-division cross-connections at the VC-12, VC-3, or VC-4 level, which are equivalent to 8x8 VC-4s
OptiX RTN 910
Page *
16KB
16KB
Page *
Type-based hierarchical service assurance: fine scheduling of multiple services per BS/user/user group to ensure the QoS
Maximizing business values: fine bandwidth control to make full use of network resources, containing more users
Network side: control over the DS-TE (a rigid channel similar to the SDH VC) based on planning
NodeB 2
NodeB 3
NodeB n
Page *
The existing 4K CVLAN tags are insufficient for service planning.
VLAN IDs are conflicted between convergence services and between the services traversing a third-party network.
The transmission department of the carrier is separate from the wireless department, and it is difficult for the transmission department to work with the wireless department for VLAN planning.
Background
1
3
4
3. The service configuration workload is reduced.
Application Scenario
Scenario requirement:
(1) CVLAN conflicts on the BS side should be avoided.
[Supplementary Scenario Description]
SVLANs can be added by port or by port+CVLAN.
[Version Support]
The OptiX RTN 605 V100R003 does not support the VLAN nesting.
Page *
(2) Clock frequency synchronization is provided for 2G/3G wireless services.
Application Scenario 2
High synchronization precision
Scenario description
(1) In the case of 3G services, only clock synchronization is required for technologies such as WCDMA.
(2) In this case, the synchronous Ethernet technology can be adopted to transmit clock information. The difference between the synchronous Ethernet technology and the ACR mode is that the clock information is stored at the physical layer in the synchronous Ethernet technology but is stored in services in ACR mode.
NodeB
BSC/RNC
BITS
T1/E1
cSTM-1
FE
NodeB
FE
GE
E1
BTS
The gateway equipment adopts the BITS clock as the primary clock reference source.
Clock information is transmitted to the streams at the Ethernet physical layer at one end of an Ethernet link and is extracted at the other end of the Ethernet link. Then the clock information is transmitted level by level.
Values and Highlights
Each link is required to support the synchronous Ethernet technology. That is, there are requirements for Ethernet physical interfaces. The synchronous Ethernet technology is defined as a network synchronization mechanism similar to the SDH clock.
[Version Support]
Currently, the OptiX RTN 900 V100R001/R002 and the OptiX RTN 600 V100R003 support the synchronous Ethernet.
Page *
E-Line Service
The E-Line service is a point-to-point service form on the topology. The equipment transmits the packets or VLAN packets on a specified port on the user side to a port on the user side or network side or to the QinQ link on the network side, thus implementing point-to-point transparent transmission of user data.
According to transmission modes, E-Line services are classified into the following types:
(1) UNI-UNI Ethernet service
(3) UNI-NNI Ethernet service carried on a QinQ link
Page *
E-LAN Service
The E-LAN service is a multipoint-to-multipoint service form on the topology. The equipment forwards packets or VLAN packets on a specified port from the user side to multiple ports or to a PW or QinQ link on the network side, thus implementing multipoint-to-multipoint transparent transmission of user data.
On the network side, the Ethernet services can be transmitted on a port or QinQ link.
The QinQ link bearer means that an S-VLAN tag of the transport network is added to packets with the C-VLAN tag on the network of the user side, and thus the packets are labeled with two VLAN tags when traversing the transport network.
This provides a simple L2VPN tunnel for users. With regard to the services carried on a QinQ link, the QoS can be ensured by configuring the QinQ policy.
E-LAN1 (region 1)
E-LAN2 (region 2)
Page *
X
X
Normally, to avoid Ethernet ring, this link is logically shut down
X
One link has physical faults
The link which shut down logically is reactived, Ring protection happen
MSTP
The Multiple Spanning Tree Protocol (MSTP) is adopted for network loops. MSTP adopts an algorithm to prune a looped network to a tree network without loops, thus preventing the increase and infinite loop of packets on the looped network.
Broadcasting
packet
There are two physical links between two hops and the equipment at both ends supports RSTP and E-LAN services. Linear protection can be implemented through RSTP in this scenario.
[Version Support]
The OptiX RTN 600 V100R002/R003 and OptiX RTN 900 V100R002 support the MSTP.
Page *
ERPS
Ethernet services on the entire network are protected.
High switching performance is supported. The ring switching time is 200 ms.
Compared with 1+1 protection, less equipment is used in ring network protection, thus minimizing networking investments.
Microwave ring
The service channel is recovered to the status before switching.
X
Activate a protection link and perform ring protection switching
Ethernet ring protection switching (ERPS) is applicable to ring physical networks. The ERPS protects the E-LAN services between various nodes on the ring. After a ring network adopts Ethernet ring protection, normally, the owner node blocks the port on one side on the ring to transmit services on the port of the other side, thus preventing service loops. When a link or an NE on the ring is faulty, the owner node unblocks its upstream port to transmit services on the faulty link or NE, thus implementing ring network protection.
Values of the ERPS
Ring Protection Link
1. Select the shortest path from the service channels between microwave stations on the ring.
2. Specify a ring protection link that projects any microwave link on the ring.
3. Any faulty microwave link on the ring can activate the ring protection link.
4. A link fault on the ring can be rectified through automatic or manual switching.
Scenario Description
1. The service type must be E-LAN.
2. The ring protection link and the owner node on the ring are specified. The port on the owner node is blocked to prevent service loops.
3. The ring protection link protects any link on the ring.
4. Any faulty link on the ring can activate the ring protection link.
5. The link fault on the ring can be rectified through automatic or manual switching.
[Version Support]

Page *
LAG (IEEE 802.3ad)
How to transmit 300 Mbit/s services on a 200 Mbit/s air interface?
X
Main functions:
2. Improving link availability
One or more Ethernet links are aggregated to form an link aggregation (LAG) so that the MAC customer regards the LAG as one link.
Load sharing by the LAG
Port protection by the LAG
Values and Highlights
Links on the user side/air interface side are protected.
Multiple microwave links are aggregated to form one logical link, thus increasing the bandwidth of the logical link.
1
(1) When the traffic of one service exceeds the transmission bandwidth of one physical link, the service can be transmitted on multiple links through traffic sharing.
(2) Links work in mutual protection mode.
0 Mbit/s microwave link 1
Microwave/Optical ring
(1) The information such as the IP address/MAC address is balanced among various logical channels as the traffic.
(2) If the IP address of one service stream is the same as the MAC address, the service stream cannot be balanced among various logical channels.
(3) The equipment at both ends must support the LAG technology.
[Version Support]
The OptiX RTN 600 V100R002/R003 and OptiX RTN 900 V100R001C02/R002 support the LAG.
Page *
Large-capacity Ethernet transmission
The XPIC technology supports a single frequency point to transmit two-channel signals, thus doubling the usage of spectrum resources. Up to 800 Mbit/s Ethernet throughput per carrier frequency is implemented.
The large-capacity transmission requirement of data services is met.
400
XPIC Technology—Up to 800 Mbit/s Air-Interface Capacity
Page *
AM—Increasing the Bandwidth by Four Times
Important feature of the packet microwave: The modulation scheme can be automatically changed according to the transmission conditions of the air interface, thus ensuring high-level service transmission.
Increasing the bandwidth by four times on sunny days: Under the same conditions, the OptiX RTN equipment can support the 200 Mbit/s capacity but the EOS of the TMD can support only the 40 Mbit/s capacity.
Eight QoS levels on rainy days: The monitoring mechanism ensures the fine and hierarchical service transmission.
Encapsulation
AM
Element
Page *
IP-based networks cater for the development trend.
Different from SDH services, Ethernet services do not have the operation, management, or maintenance capabilities.
There are no methods or tools to rapidly and easily locate service link faults.
There are requirements for detecting the faults and performance of point-to-point Ethernet physical links between two pieces of directly connected equipment in the last mile.
A
D
Core
Access
Access
ME
ME
B
C
(1) CC: Link status and one-way connectivity are detected in real time.
(2) LB: Single-end location or detection is performed, and two-way connectivity is detected.
(3) LT: Faults are located on site.
(4) 802.3ah: The performance of the physical link in the last mile is monitored and faults are located.
RNC
[Version Support]
The OptiX RTN 600 V100R003 and the OptiX RTN 900 V100R002 support the Ethernet OAM.
Page *
Clock Feature
Supporting the trace mode, hold-over mode, and free-run mode, which complies with the ITU-T G.813 standard
Supporting the line clock source, tributary clock source, microwave clock source, synchronous Ethernet clock source, and external clock signals
Supporting the SSM protocol and the extended SSM protocol. SSM information can be transmitted with the synchronous Ethernet and external clock signals through the SDH line and microwave.
Supporting re-timing of tributaries
Page *
License Strategy for the OptiX RTN 900
Quotation rules for TDM MW 4E1 licenses
Quote the licenses expressed in 4E1s towards the intermediate frequency (IF). The corresponding IF board is the IF1, which is used as a quotation subitem of the IF board. Note: The E1/STM1 license for the OptiX RTN 600 is quoted according to NEs. The license strategy for the OptiX RTN 900 has been changed.
When licenses are expressed in 4E1s, if there are N (number) 4E1s in a direction, N (number) 4E1 licenses should be quoted for the direction.
The two IF boards should be configured with 1+1 configuration.
The license strategy for the OptiX RTN 600 is that one piece of equipment is allocated with one 4E1 license for free. The licenses are automatically allocated by using the Quoter software. Note that the license strategy for the OptiX RTN 900 has been changed. The licenses are no longer allocated for free. The licenses are automatically allocated upon charge by using the Quoter software.
Quote the licenses towards the IF. The corresponding IF board is the IF1, which is used as a quotation subitem of the IF board.
When licenses are expressed in STM-1s, if there are N (number) STM-1s in a direction, N (number) STM-1 licenses should be quoted for the direction.
Quotation rules for TDM MW STM-1 licenses
Quotation rules for link transmission licenses for Hybrid MW air interface capacities
Quote the licenses towards the IF. The corresponding IF board is the IFU2/IFX2, which is used as a quotation subitem of the board.
For easy management of the network-wide MW capacity, the Link license specifications are normalized and classified into eight levels: 10M, 20M, 50M, 100M, 150M, 200M, 300M, and 400M. When quoting, quote the closest higher capacity. For example, if the customer requires the 160M capacity, quote a 200M license. Do not quote the 160M capacity with the sum of 10M plus 150M.
E1 service calculation method: 4E1 is equivalent to 8M. For example, 16E1 = 4*(4E1), which is equivalent to 32M, and thus a 50M license should be quoted.
Charge for capacity expansion: The fee for the original capacity should be excluded. When preparing a bill of quotation (BOQ), quote the after-expansion capacity license to facilitate license delivery and project implementation. For example, the equipment on the existing network has a 20M license. The customer needs to expand the capacity of the equipment to 50M. In this case, quote 3*10M licenses. Note that the license delivered with the BOQ should still be a 50M license to ensure the license delivery for the expansion project. In addition, all factors regarding capacity expansion should be considered as a whole, such as the antenna size and link reserve.
Quote the licenses towards the IF. The corresponding IF board is the IFU2/IFX2, which is used as a quotation subitem of the board.
Quotation rules for AM licenses
Page *
Contents
Page *
RTN 910 IDU
RTN 950 IDU
Supports the 1+1 protection (HSB/SD/FD).
Supports the 2+0 configuration
Support XPIC
Support the 1+1 protection (HSB/SD/FD)
Support N+0 (N≤5)
Support N+1 (N ≤4)
Support XPIC
The IDUs of the OptiX RTN 910 and OptiX RTN 950 adopt the card plug-in design. The OptiX RTN 910 and OptiX RTN 950 can provide different functions by configuring different types of boards.
Page *
EM6T: 4xFE (RJ45)+2xGE(RJ45) Board
AUX :Assistant Channel Interface Board (Only for RTN 950)
IFU2: Hybrid IF Board
IF Board & Service Board
System Control and Cross-connect Switch Board
CSHB: 32*E1+2*FE+2*GE
CSHC: 16*E1+2*STM-1+2*FE+2*GE
CSTA: 16*E1+2*STM-1
CST: TDM System Control and Cross- connect Board
IFX2: Hybrid XPIC IF Board
IF1: TDM IF Board
SP3S: 16xE1 Board
SP3D: 32xE1 Board
SL1D: 2xSTM-1(O) Board
Page *
Hardware Features of the OptiX RTN 900 V1R2—IDU 910
Paired slots
Board Name
CSHA(A/B)
16*E1 (120-ohm/75-ohm)+2*FE(RJ45)+2*GE(RJ45) Hybrid control, switching, and timing board.
Slot 1 and slot 2
CSHB(A/B)
32*E1 (120-ohm /75-ohm)+2*FE(RJ45)+2*GE(RJ45) Hybrid control, switching, and timing board.
Slot 1 and slot 2
CSHC(A/B)
16*E1 (120-ohm /75-ohm)+2*STM-1(SFP)+2*FE(RJ45)+2*GE(SFP) Hybrid control, switching, and timing board.
Slot 1 and slot 2
CSTA(A/B)
16*E1 (120-ohm /75-ohm)+2*STM-1(SFP) TDM control, switching, and timing board.
Slot 1 and slot 2
IFU2
IFX2
IF1
EM6T
Slot 3 and slot 4
EM6F
Slot 3 and slot 4
SP3S(A/B)
SP3D(A/B)
SL1D
PIU
FAN board
Slot 6
Each of the CSHA, CSHB, CSHC and CSTA boards occupies two slots. Each board occupies slot 1 and slot 2 at the same time. All the boards, except for the power board, support the hot plugging.
Page *
Slot 5
Slot 6
Slot 1/2
Slot 3
Slot 4
Page *
Three groups of paired slots
442 (width) x 220 (depth) x 88.9 (height) (mm)
Board Name
Slot 7 and slot 8
CST
Slot 7 and slot 8
AUX
Slot 1~slot 6
Slot 1~slot 6
Slot 1~slot 6
Slot 1~slot 6
FAN
Page *
Interconnection of IF Boards
Air interface interconnection between the OptiX RTN 900 V100R002 and the OptiX RTN 600 V100R003
Air interface interconnection between the OptiX RTN 900 V100R002 and the OptiX RTN 900 V100R001
The IFU2 can be interconnected with the IFE2 only in the case of pure Ethernet services. When E1 services are transmitted with Ethernet services on the IFU2, the IFU2 cannot be interconnected with the IFE2.
The IF1 of the OptiX RTN 900 V100R002 works in 128QAM/28 MHz mode and can be interconnected with the IFX of the OptiX RTN 600 V100R003.
The overall principles for air-interface interconnection are as follows: Boards with the same name can be interconnected. Hybrid IF boards can be interconnected. TDM IF boards can be interconnected. Hybrid IF boards can be interconnected with packet IF boards when transmitting pure Ethernet services.
OptiX RTN 600 V100R003 OptiX RTN 900 V100R002
IF0
IF1
IFE2
IFU2
IFX2
IF1
No
No
No
IFU2
Page *
Contents
Page *
ODU Introduction
When the OptiX RTN 910 and OptiX RTN 950 match SPA ODUs, the supported maximum modulation scheme is 128QAM, and the 256QAM modulation scheme is not supported.
Only HP ODUs support 56 MHz channel spacing.
Note: ODUs of the same series and the same types must be used on the same link.
ODU Series
Software Version
Page *
IDU
IF1
LP/LPA/SP/SPA/HP
1) Match LP/LPA ODU, the support modulation scheme is QPSK~16QAM; 2) Match SPA/SP/HP ODU, the support modulation scheme is QPSK~128QAM.
IFU2
SP/SPA/HP
1) Match SP/HP ODU, the support modulation scheme is QPSK~256QAM; 2) Match SPA ODU, the support modulation scheme is QPSK~128QAM, not support 256QAM.
IFX2
Page *
Name
Description

optix rtn 900 v100r002 product description-20100223-a

Documents