Introduction to the Cross-Connect Board on Huawei OSN3500

Huawei OptiX OSN 3500 equipment supports the EoD board, which enables service conversion between the TDM domain and the packet domain.

Figure 1 shows the typical networking and application of the EDQ41.

Figure 1 Networking and application of the EDQ41 

The EDQ41 is applicable in five typical networking scenarios. Figure 2 shows the service signal flow in each application scenario.

• Application 1: The EDQ41 receives EoS services from other NEs and then converts the EoS services to packet services, therefore implementing transition from the STM-1/STM-4 SDH network to the GE/10GE packet network.
• Application 2: The EDQ41 receives EoS services from line boards on the same NE and then converts the EoS services to packet services, therefore implementing transition from the SDH network to the GE/10GE packet network.
• Application 3: The EDQ41 board receives SDH services (including SDH services and EoS services) from SDH line board, processes and then distributes the services to GE/10GE packet networks and STM-1/STM-4 SDH networks.
• Application 4: The EDQ41 board receives SDH services (including pure SDH services and EoS services) from SDH line boards, processes and then sends the services directly to the SDH network. In this case, the EDQ41 board functions like an SDH line board.

The EDQ41 supports the maximum processing capacity of 2.5 Gbit/s. Therefore, only 2.5 Gbit/s services of the services received from STM-N (1≤N≤64) line boards can be processed and sent to the packet network.

Figure 2 Service signal flow on the EDQ

Huawei OSN3500 Introduction

Positioning

Huawei OptiX OSN 3500 intelligent optical transmission system (the OptiX OSN 3500 for short) developed by Huawei is the next-generation intelligent optical transmission equipment.

Huawei OptiX OSN 3500 is of a "universal switch" architecture. That is, the OptiX OSN 3500 can be used in packet mode or in TDM mode. When used with the other equipment of Huawei, the OptiX OSN 3500 supports various networking applications, such as the pure packet mode application, hybrid networking application (overlay networking of the packet mode and TDM mode), and pure TDM mode application. By using a proper networking solution, the data service and conventional SDH service can be processed in the optimal manner.

Technology

The OptiX OSN 3500 transmits voice and data services on the same platform with high efficiency. It integrates the following technologies:

• In packet mode, the OptiX OSN 3500 supports the following technologies:
  • Multiprotocol Label Switching (MPLS)
  • Multiprotocol Label Switching Transport Profile (MPLS-TP)
  • Pseudo Wire Edge to Edge Emulation (ETH PWE3)
  • TDM PWE3
  • ATM PWE3
• In TDM mode, the OptiX OSN 3500 supports the following technologies:
  • Synchronous digital hierarchy (SDH)
  • Plesiochronous digital hierarchy (PDH)
  • Ethernet
  • Asynchronous transfer mode (ATM)
  • Storage area network (SAN)/Video
  • Wavelength division multiplexing (WDM)
  • Digital data network (DDN)
  • Pulse Code Modulation (PCM)

Exterior of the OptiX OSN 3500 

Network Application

As shown in Figure, the OptiX OSN 3500 is mainly used at the convergence layer and backbone layer of the metropolitan area network (MAN). The network application scenarios are described as follows:

• In TDM networking, can be networked with the other OptiX transmission equipment (the OptiX OSN 9560, OptiX OSN 9500, OptiX OSN 7500 II, OptiX OSN 7500, OptiX OSN 3500 II, OptiX OSN 2500, OptiX OSN 1500, OptiX OSN 500, and OptiX OSN 550) to optimize the carrier's investment.
• With the packet switching technology, can constitute a packet data transmission network with the other OptiX transmission equipment (the OptiX OSN 7500 II, OptiX OSN 7500, OptiX OSN 1500, OptiX OSN 500, OptiX OSN 550, OptiX PTN 910, OptiX PTN 950, OptiX PTN 1900, OptiX PTN 3900, and OptiX RTN 900) to meet the requirement for bearing IP services.
• Can be flexibly networked with WDM equipment and Huawei Metro equipment.
• Can transparently transmit services over third-party Layer 2 networks, allowing end-to-end configuration and management.

What is the Protection Relationship among Huawei OSN Products?

TPS protection relationship of all Huawei OSN products is listed as follows:

Huawei OSN 7500:

E1/T1: A maximum of one group of 1:4 protection. Slot 1 protects Slots 2, 3, 7 and 18.

E3/D3/E4/STM-1e: A maximum of one group of 1:3 protection. Slot 18 protects Slots 2, 3 and 7. 

Huawei OSN 3500:

E1/T1: A maximum of one group of 1:8 protection. Slot 1 protects Slots 2–5, 13–16.

E3/D3/E4/STM-1e: A maximum of two groups of 1:3 protection. Slot 2 protects Slots 3, 4 and 5. Slot 16 protects Slots 13, 14 and 15. A maximum of two groups of 1:1 protection. Slot 2 protects Slot 3 and Slot 16 protects Slot 15.

Huawei OSN 2500:

E1/T: If slots are not split, there is a maximum of one group of 1:4 protection. Slot 5 protects Slots 6, 7, 12 and 13. If Slots 5, 6 and 7 are split, there are a maximum of two groups of 1:2 protection. Slot 5 protects Slots 6 and 7. Slot 19 protects Slots 20 and 21.

E3/D3/E4/STM-1e: A maximum of two groups of 1:1 protection. Slot 6 protects Slot 7, and Slot 13 protects Slot 12.

Huawei OSN 2500CRG:

The OSN2500CRG does not support TPS protection.

Huawei OSN 1500I:

E1/T1: If slots are not split, there is a maximum of one group of 1:2 protection. Slot 11 protects Slots 12 and 13. If Slots 11, 12 and 13 are split, there is a maximum of one group of 1:2 protection. Slot 1 protects Slots 2 and 3, Slots 6 protects Slots 7 and 8, and Slot 11 protects Slots 12 and 13.

E3/D3/E4/STM-1e: A maximum of two groups of 1:1 protection. Slot 12 protects Slot 13.

Huawei OSN 1500II:

E1/T1: If slots are split, there is a maximum of one group of 1:1 protection. Slot 2 protects Slot 12. 

Huawei OSN3500 Gold Line FAQ

Huawei OSN3500 Gold Line Overview

OSN3500 Gold Line configuration including:

• OSN3500 Subrack, with 1+1 PIU, 1PCS AUX
• 1+1 SXCSA equipped, 200G high order, 20G low order, 155G Access capacity.
• 1+1 N4GSCC equipped, System Control and Communication Board
• 2 PCS SLD64(S-64.2b) equipped, 2xSTM-64 Optical Interface Board(S-64.2b,LC)
• 1 PCS SLQ16(S-16.1) equipped, 4xSTM-16 Optical Interface Board(S-16.1,LC)
• 1 PCS SLQ4(S-4.1) equipped, 4xSTM-4 Optical Interface Board(S-4.1,LC)
• 1 PCS SLO1(S-1.1) equipped, 8xSTM-1 Optical Interface Board(S-1.1,LC)
• 1 PCS EGS412 equipped, 4xGE Optical Interface Board(1000BASE-LX,1310-LC)
• 1 PCS EFS0+1PCS ETF8 equipped, 8xFE Electrical Interface Board(1000BASE-LX,1310-LC)
  
  
  Huawei OSN3500 Gold Line Configuration, is a recommended board bundle provided by Thunder-link.com, it has common service type and ordinary ports. You can find other configuration bundle at CONFIGURE page, where you can even configure by yourself by selecting the boards you need. If you need customized configuration, please contact with Thunder-link.com Sales Team, who will come back to you shortly.

Huawei OSN3500 Gold Line FAQ

Q: What is the slot access capacity?

A: OSN3500 slot access capacity is different when equip with different Cross-Connect Board.

           When equip with N1GXCSA, the slot bandwidth is like below:       When equip with N1EXCSA:

              When equip with N1UXCSA/B:                                                      When equip with N1SXCSA/B:

                

               When equip with N2PSXCSA:                                                       When equip with N1FXCSA: 

                  

Q: What boards are applicable on OSN3500?

A:

List of Cross Connect Boards
N1PSXCS N2PSXCSA N3PSXCSA	Super  Cross-connect and Synchronous Timing Board (supporting packet features)	N1SXCSA	Super  cross-connect and synchronous timing board (only applicable in TDM mode)
N1GXCSA	General cross-connect and synchronous timing board	N1SXCSB	Super cross-connect and synchronous timing board (connected to the extended subrack)
N1EXCSA	Enhanced cross-connect and synchronous timing board	N1IXCSA	Infinite cross-connect and synchronous timing board
N1UXCSA	Ultra cross-connect and synchronous timing board	N1IXCSB	Infinite cross-connect and synchronous timing board (connected to the extended subrack)
N1UXCSB	Ultra cross-connect and synchronous timing board (connected to the extended subrack)	N1XCE	Cross-connect and timing board for the extended subrack
N1FXCSA	Full cross-connect and synchronous timing board
List of System Control Board
N1GSCC/N3GSCC N4GSCC/N6GSCC	System Control and Communication Board
List of packet processing boards
N1PEX2	2-port 10 Gigabit Ethernet switching processing board	N1PEX1/N2PX1	1x10GE Ethernet processing board
N1PEG16	16xGE Ethernet processing board	N1PEG8	8-port Gigabit Ethernet switching processing board
List of packet interface boards
N1CQ1	4-port channelized STM-1 CES optical interface board	N1PEFF8	8-port FE optical interface board
N1PETF8	8xFE electrical interface board	N1MD12	Multi-protocol 32xE1 interface board (120 ohms)
N1MD75	Multi-protocol 32xE1 interface board (75 ohms)
List of EoD boards
N1EDQ41	4-port 622/155 Mbit/s SDH optical interface Ethernet dual-mode multi-function processing board
List of SDH boards
N4SLD64/N1SLD64	2xSTM-64 optical interface board	N4SLO16 N1SLO16	8xSTM-16 optical interface board
N4SFD64	2xSTM-64 optical interface board with the FEC function	N4SLQ16 N1SLQ16 N2SLQ16	4xSTM-16 optical interface board
N1SL64/N2SL64/N4SL64	1xSTM-64 optical interface board	N1SLD16	2xSTM-16 optical interface board
N3SL16/N3SL16A	1xSTM-16 optical interface board	N1SL16/N1SL16A N2SL16/N2SL16A	1xSTM-16 optical interface board
N1SF16	1xSTM-16 optical interface board (with the outband FEC function)	N3SLH41	16xSTM-4/STM-1 optical interface board
N1SF16E	1xSTM-16 optical interface board (with the outband EFEC function)	N3SLQ41	4xSTM-4/STM-1 optical interface board
N1SLD4/N2SLD4/N1SLD4A	2xSTM-4 optical interface board	N1SLQ4/N2SLQ4	4xSTM-4 optical interface board
N1SL4/N2SL4/N1SL4A	1xSTM-4 optical interface board	N1SLQ4A	4xSTM-4 optical interface board
N1SLH1	16xSTM-1 signal processing board	N1SLT1	12xSTM-1 optical interface board
N1EU08	8xSTM-1 electrical interface board	N1OU08	8xSTM-1 optical/electrical interface board (LC)
N2SLO1/N3SLO1	8xSTM-1 optical interface board	N2OU08	8xSTM-1 optical interface board (SC)
N1SLQ1/N2SLQ1/N1SLQ1A	4xSTM-1 optical interface board	N1SL1/N2SL1/N1SL1A	1xSTM-1 optical interface board
N1SEP1	2xSTM-1 line processing board when interfaces are available on the front panel 8xSTM-1 line processing board when interfaces are available on the corresponding interface board
List of PDH boards
N1SPQ4/N2SPQ4	4xE4/STM-1 electrical processing board	N1MU04	4xE4/STM-1 electrical interface board
N2PQ3	12xE3/T3 service processing board	N1D34S	6xE3/T3 electrical switching interface board
N1C34S	3xE3/T3 electrical switching interface board	N1PD3/N2PD3	6xE3/T3 service processing board
N1PL3/N2PL3	3xE3/T3 service processing board	N1PL3A/N2PL3A	3xE3/T3 service processing board (Interfaces are available on the front panel.)
N1PQ1/N2PQ1	63xE1 service processing board	N1PQM	63xE1/T1 service processing board
N1D12B	32xE1/T1 electrical switching interface board	N1D12S	32xE1/T1 electrical switching interface board (120 ohms)
N1PFL1	8xE1 optical processing board	N1D75S	32xE1 electrical switching interface board (75 ohms)
N1TSB8	8-port electrical switching interface board	N1DX1/N3DX1	DDN service accessing and converging board
N1DM12	DDN service interface board	N1DXA	DDN service converging and processing board
List of EoS boards
N1EFT8/N2EFT8	8xFE/16xFE transparent transmission board	N1EAS2/N3EAS2	2x10GE Layer 2 switching and processing board
N1EFT8A/N2EFT8A	8xFE transparent transmission board	N1EGSH	16xGE switching and processing board
N1EFS0A	16xFE switching and processing board	N1EMS4	4xGE and 16xFE switching and processing board
N1EFS0/N2EFS0 N4EFS0/N5EFS0	8xFE switching and processing board	N1EMS2	2xGE and 16xFE switching and processing board
N1EFS4/N2EFS4/N3EFS4	4xFE switching and processing board	N1EGS/4N3EGS4	4xGE switching and processing board
N1EFF8/N1EFF8A	8x100M Ethernet optical interface board	N1EGT/2N2EGT2	2xGE transparent transmission board
N1ETF8/N1ETF8A	8x100M Ethernet twisted-pair interface board	N2EGS2, N3EGS2	2xGE switching and processing board
N1ETS8	8x10/100M Ethernet twisted pair interface switching board
List of ATM boards
N1ADL4/N1IDL4	1xSTM-4 ATM service processing board	N1ADQ/1N1IDQ1	4xSTM-1 ATM service processing board
List of RPR boards
N2EGR2	2xGE ring processing board	N2EMR0	12xFE and 1xGE ring processing board
List of SAN/video boards
N1VST4	4-port video service transparent transmission board	N1MST4	4-port multi-service transparent transmission board
List of PCM boards
N1FXSO12	12-port FXS/FXO processing board	N1FXS12	12-port FXS processing board
N1FXO12	12-port FXO processing board	N1AT6	6-port 2/4 wire and E&M processing board
List of WDM boards
TN11CMR4	4-channel optical add/drop multiplexing board	TN11CMR/TN11CMR2	2-channel optical add/drop multiplexing board
TN11MR2	2-port optical add/drop multiplexing board	N1MR2C/N1MR2A	2-channel optical add/drop multiplexing board
TN11MR4	4-port optical add/drop multiplexing board	N1CMD2	2-channel bidirectional optical multiplexer and demultiplexer board
N1LWX	Arbitrary bit rate wavelength conversion board	TNN1XMD2	2-channel bidirectional optical add/drop multiplexing board
N1FIB	Filter isolating board
List of auxiliary boards
N1AUX	System auxiliary interface board	N1FAN	Fan board
List of optical amplifier boards and dispersion compensation boards
N1BPA/N2BPA	One-channel power amplifier and one-channel pre-amplifier board	N1COA, 61COA,62COA	Case-shaped optical amplifier
N1DCU/N2DCU	Dispersion compensation board	TN11OBU1/TN12OBU2	Optical booster amplifier board
N1BA2	Two-channel power amplifier board	N1RPC01/N1RPC02	Backward Raman driving board (external)
lists all power boards and their applicable products.
UPM	Uninterruptible power module	N1PIU	Power interface board (supporting standard subracks)
N1PIUA	Power interface board (supporting 1100 W enhanced subrack.)	N1PIUB	Power interface board (supporting type III subracks)

Q: Can I use new version board to replace old version ones?

A: Yes, most of OSN3500 service board, you can use newer verison to replace old ones, here listed some ordinary substitution boards below, or you can contact Thunder-link.com technical sales team to confirm the board substitution relation.

Substitute Board	To-Be-Substituted Board	Substitute Board	To-Be-Substituted Board
N1PSXCS	N1SXCSA	N1SL1A	N1SL1
N1SXCSB	N1UXCSB	N1SL4A	N1SL4
N1SXCSA	N1EXCSA/N1UXCSA	N1SL64	N2SL64
N2PSXCSA	N1SXCSA/N1PSXCS	N1SLD4A	N1SLD4
N3PSXCSA	N1SXCSA/N1PSXCS/N2PSXCSA	N1SLQ1A	N1SLQ1
N3SL16	N1SL16	N1SLQ4A	N1SLQ4
N2PD3	N1PD3	N2SLQ16	N1SLQ16
N2PL3	N1PL3	N3SL16	N1SL16
N2PL3A	N1PL3A	N3SL16A	N1SL16A
N2PQ1	N1PQ1	N3SLQ41	N1SLQ1/N1SLQ4 N2SLQ1/N2SLQ4
N2PQ1A	N1PQ1A	N4SF64	N1SF64
N2PQ1B	N1PQ1B	N4SL64	N1SL64/N2SL64
N2EFS0	N1EFS0	N4SLD64	N1SLD64
N2EFS4	N1EFS4	N4SLO16	N1SLO16
N2EFT8	N1EFT8	N4SLQ16	N1SLQ16/N2SLQ16
N2EFT8A	N1EFT8A	N4EGS4	N3EGS4
N2EGS2	N1EGS2	N5EFS0	N1EFS0/N2EFS0/N4EFS0
N2EGT2	N1EGT2	N3EFS4	N1EFS4/N2EFS4
N3EGS2	N1EGS2/N2EGS2	N4EFS0	N1EFS0/N2EFS0

Q: Is there any restrictions for board substitution?

A: Yes, there list some restrictions when board substitution below, or you can contact Thunder-link.com technical sales team to confirm the board substitution relation.

Board That Supports the Board Version Replacement Function	Board That Cannot Be Substituted	Condition
N1SL16A	N2SL16A/N3SL16A	The TCM function is enabled for the N2SL16A/N3SL16A.
N1SL64	N2SL64	The TCM function is enabled or AU-3 services are configured for the N2SL64.
N1SLQ16	N2SLQ16	The TCM function is enabled or AU-3 services are configured for the N2SLQ16.
N3SL16	N2SL16	The TCM function is enabled or AU-3 services are configured for the N2SL16.
N3SL16A	N2SL16A	AU-3 services are configured for the N2SL16A.
N3SLO1	N2SLO1	AU-3 services are configured for the N2SLO1.
N4SL64	N2SL64	The TCM function is enabled or AU-3 services are configured for the N2SL64.
N2EFS0/N4EFS0	N1EFS0	The N1EFS0 is configured with QoS functions.If an N4EFS0/N2EFS0 is configured as an N1EFS0 and the simulation package loading method is used, the board software of the N1EFS0 is loaded. As a result, a cold reset is performed on the board and the board version replacement function becomes ineffective. Therefore, an N4EFS0/N2EFS0 must not be configured as an N1EFS0.
N2EFS4	N1EFS4	If an N2EFS4 is configured as an N1EFS4 and the simulation package loading method is used, the board software of the N1EFS4 is loaded. As a result, a cold reset is performed on the board and the board version replacement function becomes ineffective. Therefore, an N2EFS4 must not be configured as an N1EFS4.
N4EFS0	N2EFS0	If an N4EFS0 is configured as an N2EFS0 and the simulation package loading method is used, the board software of the N2EFS0 is loaded. As a result, a cold reset is performed on the board and the board version replacement function becomes ineffective. Therefore, an N4EFS0 must not be configured as an N2EFS0.
N2EGS2	N1EGS2	The N1EGS2 is configured with QoS functions.
N1BPA	N2BPA	The ALS function is required but not enabled on the line board.
N2BPA	N1BPA	The ALS function is required but not enabled on the N2BPA.

Q: Do you have U2000 NMS If I buy OSN 3500 from you?

A: Yes, we can share U2000 software package to our customers for free.

Q: Do you have U2000 NMS License If I buy OSN 3500 from you?

A: Yes, we provide to our customer U2000 license for test purpose, not for commercial use.

Q: Does OSN3500 have AC power supply?

A: No, OSN3500 power interface unit PIU is DC -48V input only, if you need a AC/DC power converter, please contact with Thunder-link.com sales team.

Q: Do you offer OSN3500 Subrack separately?

A: Yes, please contact with our sales team for details.

More related:

The Issue that the MA5600T H802GPBD Board Resets Repeatedly

MA5600T Reset Problem Triggered by ping -v

Be ware of Unnecessary ActiveStandby SCC Switching on OSN 3500&7500

Huawei OLT MA5600T Series Equipment Upgrade Instructions

How to Troubleshoot Synchronous Ethernet Clocks For Huawei SDH

How to Troubleshoot Synchronous Ethernet Clocks For Huawei SDH

OptiX OSN 7500 II/7500/ OptiX OSN 3500/ OptiX OSN 1500 Troubleshooting：How to Troubleshoot Synchronous Ethernet Clocks

The common faults regarding the synchronous Ethernet clock are as follows:

A clock source cannot be properly switched and the quality of clock is low.

Possible Causes

l The connection at the port fails.

l An alarm associated with the synchronous Ethernet clock function occurs on the network.

Figure 1 Flow chart for handling a synchronous Ethernet clock fault

Procedure

Step 1 Cause 1: The connection at the port fails.

1. Check whether the ETH_LOS or ETH_LINK_DOWN alarm occurs at the port.

2. If yes, clear the alarm and then check whether the fault is rectified. For details on how to

clear the alarm, see the Alarms and Performance Events Reference.

Step 2 Cause 2: An alarm associated with the synchronous Ethernet clock occurs on the network.

1. Check whether any alarm associated with the synchronous Ethernet clock occurs on the network. For details, see Relevant Alarms.

2. If yes, clear the alarm. For details on how to clear the alarm, see the Alarms and

Performance Events Reference.

Step 3 If the fault persists, contact Huawei technical support engineers to handle the fault.

—-End