What is the difference of monitor modules SMU01A, SMUO1B, SMU01C on Huawei ETP4890?

Because Huawei MA5600T, OSN 8800, OSN3500 is DC power, when you buy Huawei OLT or WDM devices, you need to choose a AC/DC converter to meet your AC plat; ETP4890-A2 is a very normal converter, there are three kinds of modules, what are the difference of these modules?

1, SMU01A can support WebUI remote manage function, SMU01B and SMU01C cannot support WebUI feature.

2,  SMU01B supports Huawei master/slave protocols and access network point-to-point protocols, which allows Huawei access network communications equipment to connect to the U2000.

How to Verify CES Service Configuration?

After configuring a CES service on Huawei SDH equipment OSN 3500, you need to verify whether the service configuration is correct.

Prerequisites

• You are an NM user with Administrators rights or higher.
• CES services must be configured as required. For details, see Configuring CES Services in the Configuration Guide.

Tools, Equipment, and Materials

BER tester or SDH analyzer, the U2000

Test Connection Diagram

Figure 1 shows the connection diagram for testing connectivity of CES service. You can replace the SDH analyzer with a BER tester.

Figure 1 Connection diagram for testing connectivity of CES services 

Procedure

1. As shown in Figure 1, connect the CES service interface on NE1 to the BER tester.
2. Perform an inloop for the UNI that receives CES services on NE2 on the U2000.
   1. In the Main Topology of the U2000, right-click the required NE and then choose NE Explorer from the shortcut menu. The NE Explorer window is displayed.
   2. Select the board that provides CES services.
   3. In the Function Tree, select the type of the interface that receives the CES services.
      If an E1 interface receives the CES services, choose Configuration > Packet Configuration > Interface Management > PDH Interface from the Function Tree.
      If an SDH interface receives the CES services, choose Configuration > Packet Configuration > Interface Management > SDH Interface on Huawei PQ1 from the Function Tree.
   4. Click the Advanced Attributes tab and then select the interface to perform a loopback.
   5. Right-click the Loopback Mode field, and then choose Inloop from the shortcut menu.
   6. Click Apply.
3. Perform a 24-hour bit error test.
    NOTE:

   Set the coding to HDB3 and pseudo-random binary sequence (PRBS) to 2 ¹⁵-1 for the signals transmitted by the BER tester.

   Set the BER tester according to the encapsulation method that the CES services adopt and the frame format that the E1 interface adopts. Set the timeslots on the BER tester consistently with the CES service timeslots.

   • If the CES services adopt the SATop method, you need to enable the BER tester to transmit unframed signals, double-frame signals, or CRC-4 multiframe signals.
   • If the CES services adopt the CESoPSN method and the interface adopts the double-frame format, you need to enable the BER tester to transmit double-frame signals.
   • If the CES services adopt the CESoPSN method and the interface adopts the CRC-4 multiframe format, you need to enable the BER tester to transmit CRC-4 multiframe signals.
4. Test the performance of the CES services. That is, check whether bit errors occur in the CES services in the 24-hour period.
5. Check for the alarms associated with the CES services. If there is any, see the Alarms and Performance Events Reference and Troubleshooting to clear the alarms.
6. Repeat 3 to 4 to perform the 24-hour bit error test again.
7. Release the inloop that is set on the interface on NE2. For details, see 2.
8. Reconnect the cable to the CES service interface on NE1.
9. Repeat 1 to 8 to test the CES services on all the other 2 Mbit/s interfaces on NE1 and NE2.
10. Repeat 1 to 9 to test connectivity of the CES services on the other NEs.

Huawei STM-64 service board introduction and FAQ

SSN4SL64(S-64.2b,LC) is a 1 port STM-64 optical interface board, can be used on Huawei OSN 3500, OSN7500. SSN4SL64(S-64.2b, LC) part number is 03052980, model name is SSN1SL6402.

SSN4SL64(S-64.2b,LC) comes with 1 unit S-64.2b SFP module, transmission distance is 40km. SFP module is not swappable to perform different transmission distance.

Q: What the board substitution relation among different versions?

A: When the TCM function and AU-3 services are not required, the N1SL64 can substitute for the N2SL64.

Huawei N4SL64 supports the board version replacement function to substitute for the N1SL64/N2SL64, Huawei OSN 3500 SL64 wholesale.

Q: What is the difference between different function code?

Universal Switch Architecture for Multiservice Grooming

Huawei OptiX OSN equipment uses a universal switch architecture for unified grooming of packet services and TDM services. OptiX OSN equipment can work in packet mode, TDM mode, or dual-domain (packet+TDM) mode.

The three modes can be smoothly switched by upgrading the software of a service board so carriers' requirements on services and networks can be met. The smooth switching between the three modes supports carriers' distributed smooth investment based on the development of the technology and industrial chain.

Based on a universal switch architecture, OptiX OSN equipment OSN 3500 uses the packet transmission technology to perform efficient statistical multiplexing on data services so the transmission cost of every bit is reduced. In addition, OptiX OSN equipment uses the Native technology to transmit TDM services so voice services are transmitted with high quality.

Figure 1 OptiX OSN equipment architecture 

Based on a universal switch architecture, OptiX OSN equipment unifiedly transmits packet services such as 2G, 3G, and VIP private line services so network overlapping is avoided. In addition, OptiX OSN equipment transmits TDM services. Carriers can constitute an end-to-end packet network, dual-domain (packet+SDH) network, or STM-64 board and Hybrid (MSTP+routers) network that bears L2+L3 services. This complete packet transmission solution allows an evolution from TDM networks to all-IP networks