GPON Fundamentals Technical Team from FTTH Marketing Department

GPON –Fundamentals －－Technical Team from FTTH Marketing Department

Contents Basic Concepts of PON Overview of Optical Access Network Analysis of GPON Standards GPON Key Technologies GPON Management and Service Provisioning Basic Services over GPON Network . Page 2

Basic Concepts of PON This chapter describes the basic concepts and working principle of PON network. After reading it, you will have a preliminary understanding on the PON network. This chapter introduces the basic architecture, upstream and downstream working principle of the PON network. . Page 3

What is PON? Passive Optical Network Passive Optical Splitter Optical Line Terminal ONU PSTN Internet OLT Passive Optical Splitter ONU CATV Optical Network Unit Ø PON is a kind of passive optical network featuring one-to-multiple-point architecture; Ø PON is short for Passive Optical Network ; Ø PON consists of Optical Line Terminal (OLT), Optical Network Unit (ONU) and Passive Optical Splitter. . Page 4

Why GPON? <1 Mbps Access Technology Coverage diameter Service requirements 2002 • • • . 8 M 3 M 25 M 100 M ADSL/ADSL 2+ VDSL / ADSL 2+ PON Copper Based Fiber Based <3 km <2 km ~5 km <1 km Vo. D HDTV Game Internet Video conferencing Remote control 2003 BD Live TV Vo. D HDTV 2006 2010 Time GPON（Gigabit-capable Passive Optical Networks） GPON supports Triple－play service, providing competitive all-service solution. GPON supports high-bandwidth transmission to break down the bandwidth bottleneck of the access over twisted pair cables, so as to satisfy the requirements of high-bandwidth services, such as IPTV and live TV broadcasts. GPON supports the long-reach (up to 20 km) service coverage to overcome the obstacle of the access technology over twisted pair cables and reduce the network nodes. With complete standards and high technical requirements, GPON supports integrated services in a good way. GPON is the choice of large carriers in the international market. Page 5

Concepts APON: ATM Passive Optical Networks EPON: Ethernet Passive Optical Networks GE-PON: Giga-bit Ethernet Passive Optical Networks GPON: Gigabit-capable Passive Optical Networks . Page 6

GPON Principle----Data Multiplexing GPON adopts Wavelength Division Multiplexing (WDM) technology, facilitating bidirection communication over a single fiber. 1490 nm 1310 nm To separate upstream/downstream signals of multiple users over a single fibre, GPON adopts two multiplexing mechanism: – In downstream direction, data packets are transmitted in a broadcast manner; – In upstream direction, data packets are transmitted in a TDMA manner. . Page 7

GPON Principle----Downstream Data § Broadcast mode. Page 8

GPON Principle----Upstream Data § TDMA mode . Page 9

Comparison Between GPON and EPON GPON EPON Standard ITU. T IEEE Rate 2. 488 G/1. 244 G 1. 25 G/1. 25 G Split ration 1: 64~1: 128 1: 16~1: 32 Data encapsulation mode GEM/ATM Ethernet Broadband efficiency 92% 72% Line encoding NRZ 8 B/10 B Power budget Class A/B/C Px 10/Px 20 Ranging Equalized logical reach RTT by adjusting Eq. D . DBA Standard format Defined by vendors TDM support CESo. P / Native CESo. P ONT interconnectivity OMCI None OAM powerful Weak, extended by vendors Application mode Multi-service/ FTTx Pure data service Maturity Large vendors involved Small vendors involved Choice of carriers Carriers Enterprise Intranet Page 10

Overview of Optical Access Network This chapter describes the architecture of the optical access network. After reading it, you will have a understanding on the FTTx network. Besides, this chapter describes various devices applied in the FTTx network and you can get a knowledge of those devices applied in the optical access network. . Page 11

Architecture of Optical Access Network Customer Premise CO BA DSLAM x. DSL 2~20 Mbps ODN 2. 5 Gbps Down /1. 25 Gbps Up FTTC OLT 3. 5 -5 km Remote Business Curb m 250 -700 age over Urban C MDU Multi-Dwelling Unit 2. 5 Gbps Down /1. 25 Gbps Up FTTB OLT ONU Optical Networks Unit 2. 5 Gbps Down /1. 25 Gbps Up FTTH OLT Optical Line Termination . ONT Optical Networks Termination Page 12

What is Optical Access Network? From the architecture diagram, the optical access network comprises the following scenarios: 1. FTTB scenario As an access scenario for business users, Fiber to The Business (FTTB) scenario falls into single business unit (SBU) and Business Multi-tenant unit (MTU) in terms of capacity. Of them, SBU provides a comparatively small number of ports, including following types: POTS, 10/1000 BASE-T, RF(33 d. Bm. V), and DS 1/T 1/E 1 ports; MTU provides a comparatively larger number of ports, including following types: POTS, 10/1000 BASE -T, RF and DS 1/T 1/E 1 ports. 2. FTTC & FTTCab scenario As an access to the curb or the cabinet over fibre, Fiber to The Curb& Fiber to The Cabinet (FTTC & FTTCab) scenario is for the Multi-dwelling unit (MDU), providing a comparatively larger number of ports, including following types: 10/1000 BASE-T, RF(33 d. Bm. V), VDSL 2, and so on. 3. FTTH scenario As an access to the home over fibre, Fiber to The Home (FTTH ) scenario is mainly for the single family unit (SFU), providing a comparatively small number of ports, including following types: POTS, 10/1000 BASE-T, and RF(18 d. Bm. V). . Page 13

Analysis of GPON Standards This chapter analyses major GPON standards. After reading it, you will have a understanding on the module reference, performance, frame structure, as well as basic terms of GPON network, such as GEM, port and T-CONT. . Page 14

GPON Standards ITU-T G. 984. 2 ITU-T G. 984. 1 • Specifications of ODN parameters • Specifications of 2. 488 Gbps downstream optical port • Specifications of 1. 244 Gbps upstream optical port • Overhead allocation at physical layer • Parameter description of GPON network • Requirements of protection switch-over networking Simple development process Powerful compatibility ITU-T G-984. 1/2/3/4 ITU-T G. 984. 3 • Specifications of TC layer in the GPON system • GTC multiplexing architecture and protocol stack • GTC frame • ONU registration and activation • DBA specifications • Alarms and performance . ITU-T G. 984. 4 • OMCI message format • OMCI device management frame • OMCI working principle Page 15

GPON Network Model Reference UNI R/S ODN S/R SNI OLT ONU/ONT T reference point IFpon WDM NE . WDM Optical splitter ONU Optical Network Unit ONT Optical Network Terminal ODN Optical Distribution Network OLT Optical Line Terminal WDM Wavelength Division Multiplex Module NE Network Element SNI Service Node Interface UNI User Network Interface IFpon Service node V reference point NE Page 16

Basic Performance Parameters of GPON Ø GPON identifies 7 transmission speed combination as follows: 0. 15552 Gbit/s up, 1. 24416 Gbit/s down 0. 62208 Gbit/s up, 1. 24416 Gbit/s down 1. 24416 Gbit/s up, 1. 24416 Gbit/s down 0. 15552 Gbit/s up, 2. 48832 Gbit/s down 0. 62208 Gbit/s up, 2. 48832 Gbit/s down 1. 24416 Gbit/s up, 2. 48832 Gbit/s down 2. 48832 Gbit/s up, 2. 48832 Gbit/s down Among them, 1. 24416 Gbit/s up, 2. 48832 Gbit/s down is the mainstream speed combination supported at current time. Ø Maximum logical reach: 60 km Ø Maximum physical reach: 20 km Ø Maximum differential fibre distance: 20 km Ø Split ratio: 1： 64, it can be up to 1： 128. Page 17

GPON Network Protection Mode ONU#1 1：N optical splitter OLT IFpon Protected area Secondary fibre l No backup on devices. l When the primary fibre fails, the services on the fibre transfers to the secondary fibre. l Service outage occurs, and the outage duration depends on the time of line recovery. l When the disconnection occurs to the line from splitter to ONU, service outage will occur and no backup happens. IFpon ONU#N IFpon Type A Fibre backup ONU#1 OLT 2：N optical splitter Type B OLT interface backup . OLT provides two GPON interfaces. l This type protects the primary fibre. When the primary fibre fails, the services on the fibre transfers to the secondary fibre. l The protected objects are restricted to the fibre from the OLT to the ONU and boards of the OLT. For faults occur to other parts, no protection is provided. With potential security problems, it cannot satisfies customer’s requirements. l Fault location fails. IFpon Protected area IFpon l ONU#N IFpon Page 18

GPON Network Protection Mode ONU#1 2：N optical splitter OLT IFpon Whole-network protection 2：N optical splitter l Both the OLT and the ONT provides two GPON interfaces on the OLT work in 1: 1 mode. l This type is a kind of wholenetwork protection. Two routes are provided between OLT and ONU, ensuring recovery of various faults. l When the primary PON port on the ONU or user line fails, ONU automatically transfers services to the secondary PON port. In this way, services goes upstream through the secondary line and secondary port on the OLT. Basically, service outage will not occur. l It is complex to realize it and not cost-effective. l One port stays at idle state all the time, causing low bandwidth ONU#N IFpon Type C All-backup utilization. . Page 19

GPON Network Protection Mode l OLT provides two GPON interfaces. The GPON interfaces work in 1＋1 mode. l This type is a kind of whole-network protection. Two routes are provided between OLT and ONU, ensuring recovery of various faults, Including faults occurring on optical splitters or the line. l It supports using mixed ONUs in the network: ONUs either with a single PON port or with two PON ports can be used. Users can select them based on the actual needs. l It is complex to realize it ONU#1 1： 2 optical splitter 2：N optical splitter IFpon OLT IFpon Protected area of ONUs Whole-network protection with a single port 1： 2 optical splitter 2：N optical splitter ONU#N IFpon Type D Mixed backup and not cost-effective. . Page 20

GPON Multiplexing Architecture O N U OLT Port T-CONT GEM Port T-CONT IFpon ONU-ID identifies ONUs O N U T-CONT Port Alloc-IDs identifies T-CONTs l GEM Port: the minimum unit for carrying services. l T-CONT: Transmission Containers is a kind of Buffer that carries services. It is mainly used to transmit upstream data units. T-CONT is introduced to realize the dynamic bandwidth assignment of the upstream bandwidth, so as to enhance the utilization of the line. l IF pon: GPON interface. l Base on the mapping scheme, service traffic is carried to different GEM ports and then to different T-CONTs. The mapping between the GEM port and the T-CONT is flexible. A GEM Port can correspond to a T-CONT; or multiple GEM Ports can correspond to the same TCONT. Port-ID identifies GEM ports l . A GPON interface of an ONU contains one or multiple T -CONTs. Page 21

OLT Functional Blocks PON Core Shell PON interface function Cross Connect Shell PON TC function Service Shell Service adaptation Cross Connection function PON interface function PON TC function Service adaptation Ø PON core shell consists of two parts: PON interface function and PON TC function includes framing, media access control, OAM, DBA, and delineation of Protocol Data Unit (PDU) for the cross connect function, and ONU management. ØThe Cross-connect shell provides a communication path between the PON core shell and the Service shell, as well as cross-connect functionality. ØService Shell provides translation between service interfaces and TC frame interface of the PON section. . Page 22

ONU/ONT Functional Blocks PON Core Shell Service adaptation PON interface function PON TC function MUX/ DEMUX PON interface function PON TC function Service adaptation Ø The functional building blocks of the G-PON ONU are mostly similar to the functional building blocks of the OLT. Since the ONU operates with only a single PON Interface (or maximum 2 interfaces for protection purposes), the crossconnect function can be omitted. However, instead of this function, service MUX and DMUX function is specified to handle traffic. . Page 23

• Pleas e refe r to the re marks GPON Frame Structure Downstream Framing 125 us Physical Control Block Downstream (PCBd) Payload Upstream Bandwidth Map ONT 1 Alloc. ID Start End 1 100 2 300 500 OLT T-CONT 1 (ONT 1) T-CONT 2 (ONT 2) Slot 100 200 300 500 ONT 64 PLOu PLOAMu PLSu DBRu Payload x DBRu Y Payload y Upstream Framing . Page 24

GPON Upstream Frame Structure • Pleas e refe r to the re marks Upstream Framing PLI Port ID GEM header PTI Frame fragment HEC GEM header DBA Report PLOu PLOAMu PLSu Full frame GEM header Frame fragment Pad if needed DBRu x Payload x DBRu y Payload y PLOu ONT A DBRu z Payload z ONT B DBA 1, 2, 4 bytes Preamble Delimiter BIP ONU-ID Ind ONU ID A bytes B bytes 1 bytes . Msg ID 1 bytes Message 10 bytes CRC 1 bytes Page 25 CRC 1 bytes

GPON Downstream Frame Structure Downstream Framing • Pleas e refe r to the re marks 125 us PCBd n Psync 4 bytes Payload n Ident 4 bytes PCBd n+1 Reserved BIP 13 bytes 1 bytes Coverage of this BIP FEC Ind 1 bit Reserved 1 bit Super-frame Counter 30 bits Payload n Plend 4 bytes US BW Map N*8 bytes Coverage of next BIP Blen BW Map Alen ATM Partition CRC Length 12 bits 8 bits Access 1 8 bytes Alloc ID 12 bits Send PLS 1 bit . Flags 12 bits Send PLOAMn 1 bit Access 2 8 bytes SStart 2 bytes Use FEC 1 bit Page 26 …. . SStop 2 bytes Access n 8 bytes CRC 1 byte Send DBRu Reserved 2 bits 7 bits

Mapping of TDM Service in GPON TDM Buffer Ingress buffer GEM Frame PLI Port ID PTI HEC TDM data Payload TDM fragment l TDM frames are buffered and queued as they arrive, then TDM data is multiplexed in to fixed-length GEM frames for transmission. l This scheme does not vary TDM services but transmit TDM services transparently. l Featuring fixed length, GEM frames benefits the transmission of TDM services. . Page 27

Mapping of Ethernet Service in GPON Ethernet Packet Inter packet gap GEM Frame PLI Port ID Preamble SFD 5 bytes PTI CRC DA SA LengthType GEM Payload MAC client data FEC EOF l GPON system resolves Ethernet frames and then directly maps the data of frames into the GEM Payload. l GEM frames automatically encapsulate header information. l Mapping format is clear and it is easy for devices to support this mapping. It also boasts good compatibility. . Page 28

GPON Key Technologies This chapter describes GPON key technologies. After reading it, you will have a understanding on key technologies of GPON, such as ranging, equalization delay (Eq. D), dynamic bandwidth assignment (DBA), Qo. S and optical power. . Page 29

GPON Key Technologies---- Burst Optical/Electric Technology Continuous transmitting units Burst transmitting units 0# ONU 1# ONU 0# ONT Data recovered 0# ONU Signals arrive at OLT and threshold is specified l Fast-enable and disable ability l Split ratio (>10 d. B) Signals sent from ONT/ONU Continuous transmitting units 0# ONU Non- fast AGC receiving 1# ONU Burst receiving units 0# ONT Fast AGC receiving . Threshold line Page 30

GPON Key Technologies----Ranging l OLT obtains the Round Trip Delay (RTD) through ranging process, then specifies suitable Equalization Delay (Eq. D) so as to avoid occurrence of collision on optical splitters. l To acquire the serial number and ranging, OLT needs open a window, that is, Quiet Zone, and pauses upstream transmitting channels on other ONUs. OLT ONU 1 ONU 2 ONU 3 . Page 31

DBA What is DBA? --- DBA, Dynamic Bandwidth Assignment --- DBA is a scheme facilitating dynamic bandwidth assignment at an interval of ns and us. Why DBA? --- It enhances the uplink bandwidth utilization of PON ports. --- More users can be added on a PON port. --- Users can enjoy higher-bandwidth services, especially those requiring comparatively greater change in terms of the bandwidth. . Page 32

DBA Working Principle SLA: Service－Level Agreement BW: Bandwidth Maximum: maximum bandwidth Guaranteed: guaranteed bandwidth Minimum: minimum bandwidth . l Based on service priorities, the system sets SLA for each ONU, restricting service bandwidth. l The maximum bandwidth and the minimum bandwidth pose limits to the bandwidth of each ONU, ensuring various bandwidth for services of different priorities. In general, voice service enjoys the highest, then video service and data service the lowest in terms of service priority. l OLT grants bandwidth based on services, SLA and the actual condition of the ONU. Services of higher priority enjoy higher bandwidth. Page 33

T-CONT Bandwidth Terms u . Transmission Containers (T-CONTs): it dynamically receive grants delivered by OLT. T-CONTs are used for the management of upstream bandwidth allocation in the PON section of the Transmission Convergence layer. T-CONTs are primarily used to improve the upstream bandwidth use on the PON. u T-CONT type falls into FB, AB, NAB, and BE. u Five T-CONT types: Type 1, Type 2, Type 3, Type 4, and Type 5. Page 34

Qo. S Mechanism of ONU in GPON VOIP VOD GPON DATA TDM Traffic-flow Service Scheduling differentia And buffer based on control 802. 1 p Service traffic based on OLT GEM Port-id Splitter VOIP VOD DATA TDM GPON Traffic-flow Service Scheduling differentia And buffer based on control 802. 1 p l Traffic classification of services based on LAN/802. 1 p. l Service scheduling based on the combination of strict priority (SP) and Weighted Round Robin (WRR) algorithms. l Service transmission based on service mapping with different T-CONTs, enhancing line utilization and reliability. . Page 35

Qo. S Mechanism of OLT in GPON Ethernet bridging VOIP BTV DATA BSR GE/10 GE TDM Nonblocking switching 802. 1 p COS Queuing & scheduling GPON DBA GPON OLT Upstream service traffic based on different VLANs TDM Gateway PSTN . l Traffic classification based on VLAN/802. 1 p. l Service scheduling based on combination of strict priority (SP) and Weighted Round Robin (WRR) algorithms. l DBA algorithm, enhancing uplink bandwidth utilization. l Access control list (ACL)-based access control on layers above layer-2. Page 36

AES Encryption in GPON 1 OLT Encryption 3 1 3 2 1 3 1 2 1 3 ONT 1 1 End User 1 1 Decryption 1 3 2 1 3 1 1 1 End User 2 2 ONT Decryption 3 2 AES: Advanced Encrypt System A globally-used encryption algorithm 1 3 1 ONT 3 3 End User 3 Decryption l OLT applies Advanced Encryption Standard (AES) 128 encryption. l GPON supports encrypted transmission in downstream direction, such as AES 128 encryption. l In the case of GEM fragments, only the payload will be encrypted. l GPON system initiates AES key exchange and switch-over periodically, improving the reliability of the line. . Page 37

FEC l FEC is Forward Error Correction. l It is a algorithm based on Reed-Solomon, a Block based code. FEC code comprises fixed- length data block and redundancy bits. l Applying FEC algorithm on the transmission layer, GPON will drop the error bit rate of the line transmission to 10 -15, and avoid retransmission of data. l GPON supports FEC in the downstream direction. l Processing of PCBd and Payload improves the transmission quality. . Page 38

Optical Power Attenuation Ø Power attenuation calculation of Optical splitter Ø Input attenuation of optical splitter(<1 d. B): ∑(Power_input) - ∑(Power_output of all branch) Input 1: 2 optical splitter Output ∵ 10 log(0. 5) = - 3. 01 ∴ Attenuation of 1: 2 splitter: 3. 01 d. B Attenuation of 1: 16 splitter: 12. 04 d. B Attenuation of 1: 64 splitter : 18. 06 d. B Output Input 2: N optical splitter. Page 39

Fibre Attenuation and Power Budget Ø Fibre attenuation relates to the fibre length Ø The attenuation of fibre splicing point is generally less than 0. 2 d. B About 0. 35 d. B per km for 1310, 1490 nm Ø Other factors may cause attenuation, such as fibre bending Huawei’s OLT and ONU 28 d. B (Class B+) Table G. 984. 2 – Classes for optical path loss Class A Class B＋ Class C Minimum loss 5 d. B 10 d. B 13 d. B 15 d. B Maximum loss 20 d. B 25 d. B 28 d. B 30 d. B NOTE – The requirements of a particular class may be more stringent for one system type than for another, e. g. the class C attenuation range is inherently more stringent for TCM systems due to the use of a 1: 2 splitter/combiner at each side of the ODN, each having a loss of about 3 d. B. . Page 40

Parameters of GPON Interfaces (Class B+) Items Unit Single fibre OLT: OLT • Mean launched power MIN d. Bm +1. 5 • Mean launched power MAX d. Bm 5 • Minimum sensitivity d. Bm -28 • Minimum overload d. Bm -8 d. B 0. 5 • Downstream optical penalty ONU: • Mean launched power MIN d. Bm 0. 5 • Mean launched power MAX d. Bm 5 • Minimum sensitivity d. Bm -27 • Minimum overload d. Bm -8 d. B 0. 5 • Upstream optical penalty . ONU Page 41

GPON Management and Service Provisioning This chapter describes GPON management and service provisioning. After reading it, you will have a understanding on OMCI (the management and maintenance message type) and ONT service implementation. . Page 42

Basic Message Types in GPON Management OAM message at the physical layer falls into three types: embedded OAM, PLOAM and OMCI. Ø The embedded OAM and PLOAM channels manage the functions of the PMD and the GTC layers. The OMCI provides a uniform system of managing higher (service defining) layers. Ø The embedded OAM channel is provided by field-formatted information (such as BW Map，DBRu) in the header of the GTC frame. The functions that use this channel include: bandwidth granting, Dynamic Bandwidth Assignment signalling and so on. Ø The OMCI channel is used to manage the service defining layers that lay above the GTC. . Page 43

GPON System Management Mode i. Manager N 2000 BMS ACS Client SNMP TR 069 OMCI ONT u . Zero configuration ONT Centered Management Ø Ø Ø u BRAS ONT Plug and Play Ø u OLT ONT remote diagnosis Remote ONT maintenance and management through OMCI Auto configuration and management on ONT through TR 069 ONT Auto Service Provisioning Page 44

GPON Service Provisioning and Zero Configuration on Terminals Carriers’ nightmare Flexible Configuration plan of GPON Initial configurations (such as service system information configuration, data configuration) are required on terminals and then they can be put into use. To finish these configurations, it is not cost-effective to carriers. GPON supports zero configuration on terminals and plug-and-play of terminals, which is cost-effective. Application scenario 1 Subscribe for services Order Management CRM Service Provisioning Billing Configure service network 2 NMS 2000 3 Send terminals to users 1 Use OMCI to finishing data configuration on ONT 3 User . STB Finish the auto-configuration of OLT Access Network 2 ONT Start up ONT and make registration with serial number ONT Page 45

VOIP Service Management Solution in GPON Description Basic operation and maintenance process Process and Networking Subscribe for services 1 CRM Order Management Service Provisioning Generating activation code 4 Activation code generator IADMS Billing UMS 3 Configure IADMS 2 Configure Soft. X 5 7 Send activation code and terminal to users Configure terminals automaticallythrough. TR 069 Soft. X 3000 Access Network 6 Input activation code ONT User . Phone ONT Phone Page 46 Phone Daily management Terminal activation Service provisioning Maintenance personnel use activation code generator to generate terminal activation code (including IADMS IP, PPPo. E user name and password). Users input activation code on terminals, terminals register on IADMS upon power-up and the IADMS makes auto-configuration on terminals.

Basic Services over GPON Network This chapter describes basic services provided by GPON System, such as Triple-play, TDM and RF overlay services. . Page 47

Triple Play Solution in GPON BB service platform PC TL 1/CORBA /API SFU IPTV Notification Carrier’s OSS Vo. D Server Middle ware NMS Phone L VDS CPE Ethernet IP Core MDU Splitter PC OLT MSE BRAS SBU Phone Intern et AAA Server Softswitch Base station CBU FE E 1 IP Voice CPE . OD N NS P ASP/ISP Page 48

TDM Service Solution in GPON PBX CESo. P mode Native mode E 1/T 1 ONT l With fixed upstream/downstream frame structure, periodic multiframes are transmitted in GPON ODN line. So, GPON can transmit TDM service with PSTN first-born advantage. BUSINESS Splitter E 1/T 1 OLT ONT CO l FE . l Jitter and error bit rate. E 1/T 1 PBX OLT supports processing TDM service in Native and CESo. P modes. With guaranteed Qo. S, GPON ensures the parameter indexes of TDM service, such as end-to-end delay, LE l GPON supports effective isolation and higher-priority processing of TDAM service. Page 49

RF Overlay Service Solution in GPON EDFA Video （Erbium Doped Fiber Amplifier） 1550 nm Customer Central Voice/Data Office Downstream 1490 nm OLT (Optical Line Terminal) Premises Voice/Data& Video Optical Couplers （WDM） 1490/1310 nm，1550 nm ONU (Optical Network Terminal) Upstream 1490 nm Optical Splitter Video Upstream 1310 nm Voice and Data @1250 Mbps Downstream 1490 nm 1550 nm Voice and Data @2500 Mbps Video 42 Mhz Analog TV . 550 Mhz Digital TV （RF） 860 Mhz HD/VOD Page 50 IP