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Optical Fiber Access Network OFAN& ZXA10

Presented By: Ammara Khan Baloch. Optical Fiber Access Network OFAN& ZXA10. Why AN? Definition of AN Structure of AN Definition of OLT Structure of OLT Definition of ONU Structure of ONU Modules of ONU Build-in SDH. Table of Contents. 1 ） The reason of technology

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Optical Fiber Access Network OFAN& ZXA10

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  1. Presented By: Ammara Khan Baloch Optical Fiber Access Network OFAN& ZXA10

  2. Why AN? Definition of AN Structure of AN Definition of OLT Structure of OLT Definition of ONU Structure of ONU Modules of ONU Build-in SDH Table of Contents

  3. 1）The reason of technology Mostly, it is because of digital transfer system, especially, the optical transfer system. 2）The reason of Market requirement For the Operation and Maintenance. 3） The reason of competition The telecom company want to get cheaper system. Why we need Access Network?

  4. Definition of Access Network AN: the transmission entity between the SNI and UNI; SNI: Service Network Interface; UNI: User Network Interface;

  5. ONUB ONUB ONUB SDH ADSL ISDN Access network DDN 100BASE-T ZXA10-OLTB IP DDN POT S V5 PSTN Ethernet ATM user Nodes Service Nodes

  6. Definition of Access Network • OFAN serves as the junction between Local Exchange (LE) and the subscriber terminal equipment, and is connected to LE through the service network interface.

  7. The functional structure of OFAN is: Access Network (AN) Optical Line Terminal (OLT) Optical Network Unit (ONU) Network Management System (NMS) Structure of Optical Fiber Access Network

  8. OLT function is to provide OFAN with the interface between the network side and the LE, and to communicate with ONU of the subscriber. “Interface b/w an optical line and the network”. OLT can completely isolate the switching function of LE from the subscriber access. OLT is placed at the exchange end together with LE. OLT is connected to multiple ONU’s that can be used in networking of point-to-point, chain, and ring network. Large capacity OLT equipment with 19’ rack structure; High integration density ODT board, with 8 E1 per card and 120 E1 per module. All these E1 can be assigned to connect V5 or ONU as per actual requirements; Definition of OLT

  9. ZXA10-OLTB • Concentration ratio can be adjusted freely to meet different traffic model; • High performance multi cpu system, can meet the high traffic requirements; • Single module provides 10240 lines and for single rack 3 modules can be mounted together to provide more lines; • Main boards, such as MP, SSU, are working in master/slave mode, to provide high reliability. • Features are: • Hubbing • Multiplexing • Cross-Connection.

  10. P O W E R H O D T 1 O D T 2 O D T 3 O D T 4 O D T 5 O D T 6 O D T 7 S S U S S U MP MP P O W E R H O D T 8 O D T 9 O D T 10 O D T 11 O D T 12 O D T 13 O D T 14 O D T 15 T P U A L C A L C A L C A L C ZXA10-OLTB For expansion purpose, this sub rack can be added and these POTS cards are optional. • This is the common module of OLTB system which consist of 2 sub racks; and for V5 system, only this module is required; • Single module OLTB (full configuration) supports 10240 POTS. • ZXA10 supports multi-module smooth expansion, a standard 2M rack with 3 modules supports 30720L (each sub rack height is 6U and the rack height is 42U).

  11. Structure of OLT Built-in transmission system MSTP layer Control layer Narrowband service process layer Trunk layer Broadband service process layer BDM layer Built-in environment detectors CSV layer Fan layer Built-in power supply Battery layer

  12. Hardware Structure of OLT On OLTB, there are three layers: • Control layer (MCTLB ) • ODT layer( MODT) • Subscriber layer (MALC).

  13. 1-2 3 4 5 6 7 8 9 10 11 12-14 15-17 P O W E R S S U S S U O D T O D T O D T O D T O D T O D T O D T M P B M P B The board configuration of MCTLB:

  14. ZXA10-OLTB: MPB • Two MPs work in hot backup mode • MPB is the central processor of the entire POTS service element • MP store all the alarms and configuration data. • Communicate with boardssuch as ODT and SSU. • Implementing data synchronization and monitoring the working status of the other. • Provide the system operation and maintenance function. 回目录

  15. ZXA10-OLT: SSU • Two SSU Cards work in hot backup mode • Clock synchronization functions • N*64K cross-connection functions • Conference call functions With the switching capability of 4K*4K

  16. ZXA10-OLT: ODT • 1 ODT Card provide 8 E1 • The V5 signaling channels configured in different two ODT Card redundancy • Any one E1 can be configured as required • a) V5 interface connecting with LE • b) Normal E1 connecting POTS module

  17. ZXA10-OLT: POWERH POWERH outputs 4 voltages: +5VA(D), –5VA, -48V Ringing current 75VAC (hot backup mode)

  18. 1-2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 O D T O D T O D T O D T O D T O D T O D T O D T P O W E R The board configuration of MODTB:

  19. 1-2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 T R K T R K T R K T R K T R K T R K T R K T P U T R K T R K T P U T R K T R K T R K P O W E R The board configuration of subscriber layer:

  20. TRK: At OLT side, TRK is used in ZXA10 to connect to switch. At ONU side ALC is used to connect to ordinary subscriber telephone set, expanding Z interface. There are 16L in one TRK board. TPU TPU is the main processor board of ZXA10 SU2 user unit. At maximum one TPU can control 12 subscriber boards. TPU can provide at most four 4 E1 interface. Two TPU serves as backup for each other. 2 TPU work in load sharing mode to manage subscriber boards.

  21. ONU is used to provide OFAN with interface at the subscriber side. ONU is connected to number of subscriber terminals. ONU is capable of optical-electrical conversion. Maintenance and monitoring functions. ONU is placed in the vicinity of subscriber. Definition of ONU

  22. ONU is the equipment used to implement FTTB, FTTC and FTTZ. ONU provide various interface to connect to the subscribe, support various subscriber terminal such as POTS, ISDN and leased line. Structure of ONU: ONU is composed of Processing Nodes Transmission Nodes

  23. ONU Transmission node consist of following type: Built-in 155M/622M SDH optical transmission equipment ATM broadband transmission equipment ZXA10 OFAN provide build-in SDH optical transmission systems: ZXA10-AS1 ZXA10-AS2 ZXA10-S200 ZXA10-S300

  24. ONU consist of following cards: SU (Subscriber Unit) ALC (Analog Subscriber Card) DLCA (Digital Subscriber Card) TPU ( Main processor board) POWERH (Power board) TSLC (Subscriber line test board) AUDB (2/4 Audio board) DLC HLC (Hotline board) HSB DIB (64K G.703)

  25. Analog Subscriber Board (ALC): ALC is used to provide the analog subscriber Z interface. Implements POTS service. Providing 32 subscriber lines Most popular card in ZXA10. 1 SU can be inserted with up to 12 ALC’s. Basic functions are: B_Battery feeding function O_Over Voltage Protection R_Ringing function S_Supervision Function C_Codec function H_Hybrid function T_Test function

  26. 2B+D Digital Subscriber Board (DLCA): Provide 2B+D interface 1 DLCA = 8 ISDN sub 2/4 wire conversion Over voltage protection Offer test interface Self –loop testing Remote power supply. 2/4 Wire Audio Board (AUDB) It is used to convert analog signal into digital signal. Convert audio and data into digital form Provide 8 voice ports. Output/input levels are adjustable through software. Provide two transmission modes 2 line 4 line

  27. Hotline board (HLC): Resembles semi-permanent leased line service. One HLC provide hotline interface , plugged with ALC in SU unit. 1 HLC = 8 hotlines FLC card: FLC is used to support the public payphone subscribers. Each board can support 16 sub lines. ADSL subscriber board ADLG board is used for providing ADSL service. Each ADLG board support 16 ADSL subscriber. Each ADLG support 4 uplink E1 interface.

  28. Subscriber line test board (TSLC): There are mainly two test boards used in ZXA10-SU. TSLCB TSLCC TSLCB is used for analog subscriber lines and terminals TSLCC is used for digital tests on ISDN in addition to tests on ordinary analog subscribers. Test boards has the following functions: Test of external line Test of internal line Test of subscriber telephone

  29. Multi Service Access Model OLT: Optical Line Terminal; ONU: Optical Network Unit.

  30. ZXA10 ONU Module OUT40 OUT30 IN/1500 ONU200 OUT50

  31. Transmission Unit SU2 * 4 MDF CSV Rectifiers ODF Back-up Batteries Front view Side-view 2000*800*650 mm 200KG ZXA10-IN1500

  32. RT: ZXA10-IN1500 • Indoor model ONUB equipment, 19’ rack with height 42U; • ZXA10-SU2 can provide multi service access function: • POTS • ISDN-BRA 2B+D • ISDN-PRA 30B+D • E1 Leased Line • V.35/V.24/G.703 (64Kbps, n*64Kbps, and Sub rate – 19.2Kbps, etc.) • ADSL Interface • SHDSL Interface • 10M/100M Ethernet • Accuracy remote line test function is provided; • For transmission system, ZXA10-AS1/AS2 or any other SDH/PDH/ATM system can be adopted; • Large capacity, standard configuration with 4 ZXA10-SU2 is 1536L and the maximal configuration with 7 ZXA10-SU2 is 2688L; • Built-in MDF is provided.

  33. ZXA10-SU2 P O W E R T P U A L C D I B A L C H D B H S B T P U F L C D L C A A L C A D L C A L C T S L C 4 SHDSL 32 POTS 8 ISDN BRA Line test 8 ADSL 4 sub rates or 64Kbps 4 N*64K RT: ZXA10-IN1500 8 ports • 19’ sub rack with 6U height; • 2 TPU are working in mutual aid mode; • All the subscriber slots are common (yellow), the boards can be interchanged; • The ZXA10-SU2 can be used in every kinds of ZXA10-ONUB system; so all services which can provide can be provided in each ONUB system also.

  34. RT: ZXA10-OUT30 • Rack Dimension：1920mm*1350mm*710mm(H*W*L) • Net weight 200kg, full configuration weight 300kg • Temperature: -35℃～+55℃ • Relative Humidity： 5％～95％ • AC Consumption：1500W(refrigeration)，400W(calefaction) • Capacity: 2 ZXA10-SU2: 768L 3 ZXA10-SU2: 1152L

  35. Rack Dimension: 1300mm×810mm×377mm (H×W×L) Net weight 90kg, full configuration weight 160kg Temperature: 0℃～45℃ Relative Humidity: 20％～80％ Indoor model Wall-mounted or Ground-mounted Capacity: 192L ZXA10-ONU200

  36. ZXA10-OUT40 • Rack Dimension: 1450mm×1500mm×500mm (H×W×L) • Full configuration weight: 250kg • Temperature: -35℃～55℃ • Relative Humidity: 5％～95％ • Outdoor model and Ground-mounted or pole-mounted • Capacity: 1 ZXA10-SU2 384L (ZXA10-AS1); 2 ZXA10-SU2 768L (ZXA10-AS2)

  37. Built-in SDH: ZXA10-ASx • Built-in SDH system • ZXA10-AS1, maximum126 E1s per NE (double STM-1 configuration), normally used in COT side; • ZXA10-AS2, maximum 10 E1s, compact STM-1 system, normally used in RT side to reduce the cost; • ZXA10-AS3, maximum 8 E1s; • ZXA10-AS4, STM-1/STM-4 combined system, can be configured dynamically as per the actual requirements, normally used in COT side with multi-layer networking requirement.

  38. P O W E R H TRU TRU TRU TRU TRU TRU TRU TRU DXC DXC OL OL NS SCU SCU BUILT-IN SDH: ZXA10-AS1 • 2 optical STM-1 port per OL card • SCU provide synchronization clock • DXC provide 4*STM-1/VC12 fully cross • TRU provide 16 2M (Max) in each card • NS main control card • in case of it fail under power on, • no affection to whole system • Normally, it is used in COT side

  39. BUILT-IN SDH: ZXA10-AS2 • 19 Inch, 1 U, Compact STM-1 system • 2 Optical Interface (west and east), 10 E1

  40. BUILT-IN SDH: ZXA10-AS3 • 19’ and 2U box, compact design; • 2 optical direction and 8 E1; • It can be used in the system which capacity is not so big and does not need more than 2 optical directions; • Normally, in AN system we propose the ZXA10-AS2 instead of this one.

  41. BUILT-IN SDH: ZXA10-AS4 • ZXA10-AS4 is STM-4/STM-1 combined compact SDH system, which adopts the ZXSM-600 (V2) technology; • 19’ and 4U chassis; • Supporting many kinds of service, E1/E3 or T1/T3 or STM-1 can be configured as per the actual requirement; • Normally, it is used in COT side where the requirements are very high, for example, more E1s, more optical directions or both STM-1 and STM-4.

  42. telephone service ONUB STRUCTURE OLTB STRUCTURE SDH/ATM SDH/ATM ALC Voice ODT TPU SSU DDN DDN ISDN E/P Dog PSTN ODT LE MP TSLC NM

  43. AT COT STM-1 SDH SDH SU2 OLTB 2M 2M Home/Office V5.2 LE U DLCA ODT ODT T P U ISDN NT1/NT PLUS Twisted pair PC Telephone Service Realization Diagram ISDN – V5

  44. THANK YOU!

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