OB TECHNICAL PERFORMANCE CRITERIA DVN2. Table of Contents

OB TECHNICAL PERFORMANCE CRITERIA DVN2 REF NO: TBA Document Version Control Version Date Description / Changes Author Doc. Status 1.0 14/01/2016 Final Release DVN2 upgrade AH For Review 1.1 18/01/2016 Update embedded audio channel usage PB For Review Insert Date. : Insert Date. : Insert Date. : Insert Date. : Related Documents Document Version Date Author Insert Date. Insert Date. Insert Date. Table of Contents 1 Background... 2 2 Technical Specifications... 2 2.1 SDI INPUT... 2 2.2 HD-SDI INPUT... 2 2.3 Ethernet... 3 2.4 Service Input Summary... 3 2.5 Customer Interface Panel (CIP)... 4 2.6 Cable Length Limitation... 4 2.7 Drawings... 5 3 Audio... 6 3.1 Race Caller & Commentary... 6 3.2 SYNC... 6 3.3 Talkback... 6 3.3.1 4-Wire Analogue Audio Ports... 7 4 Return Vision... 7 5 Off Air Monitoring... 7 6 Cameras... 8 6.1 Quality... 8 6.2 Robotics... 8 6.3 Output... 8 7 Latency... 8 8 Raceday Operations... 9 8.1 Pre-Race Checks... 9 8.2 After Race checks... 9 9 References... 10 10 Acronyms... 11 OB Technical performance criteria DVN2 2016 Sky Racing Page1 of 11

1 BACKGROUND This document forms the base standards, interconnections to be used when connecting to Sky Racings DVN2 infrastructure for the supply of vision and audio to the studio facilities. This should be used in conjunction with the Performance Criteria production document. DVN2 infrastructure is capable of both HD and SD signal carriage however the link must be provisioned for each event based on the signal being provided. 2 TECHNICAL SPECIFICATIONS The following provides the minimum technical requirements in reference to the signal provided by the Vision Provider at the input to SKY Customer Interface Panel (CIP). It is essential these requirements be adhered to in order to maintain the highest possible quality of service and a fault free broadcast from all racetracks. The Vision Contractor must provide SKY with Video and Audio signals that comply with the following specifications. This signal shall comply with but not be restricted to the following specifications: 2.1 SDI INPUT The video signal at the Customer interface panel shall be a 270Mb/s component SDI signal conforming to SMPTE 259M, SMPTE RP184, ITU-R BT 601 and 656 recommendations, as per Table 1. The digital signal may, in addition, carry eight embedded AES/EBU stereo digital audio pairs with full featured embedded audio options in accordance to AES3 and SMPTE 272M standards respectively. SDI Interface Requirements Data rate 270Mbps 10ppm in accordance to ITU-R BT 601 and SMPTE 259M Nominal voltage at Reference 800mVpp nominally, but may be attenuated by up to 10dB Point f cable loss due to the customer connection cables DC offset 0 V 0.1V Rise and fall time Between 0.4ns to 1.5ns, but not differ by 0.5ns Rise and falling edges overshoot < 50mV Impedance & Connector 75 nominal, BNC Jitter Less than or equal to the mask limits as described in SMPTE 259M, with an input signal in accordance with SMPTE RP184 Table 1 2.2 HD-SDI INPUT The video signal at the customer interface panel shall be a 1.485Gb/s component HD- SDI signal, SMPTE S292-2008, SMPTE 274M-2008, SMPTE 296M-2001 and SMPTE RP184-2004 as per Table 2. Native HD services may, in addition, carry eight embedded AES/EBU stereo digital audio pairs with full featured embedded audio options in accordance to AES3 and SMPTE 272M standards respectively. HD300 services are compressed for carriage using JPEG2000 and may, in addition, carry two embedded AES/EBU stereo digital audio pairs with full featured embedded

audio options in accordance to AES3 and SMPTE 272M standards respectively. HD300 Services are enabled to carry ancillary data in lines 9, 12 and 575 2.3 ETHERNET HD-SDI Interface Requirements Data rate 1.485Gbps 10ppm in accordance with SMPTE S2929-2008 and associated recommendations. Nominal voltage at Reference 800mV 10% Point DC offset 0 V 0.05V Rise Time (between 20% and 80% amplitude points No greater than 270ps and shall not differ by more than 100ps Fall Time (between 20% and 80% amplitude points No greater than 270ps and shall not differ by more than 100ps Overshoot <10% of the amplitude Impedance & Connector 75 nominal, BNC Jitter (alignment 100 khz) 0.2 UI Table 2 The signal is presented at the customer interface panel and will meet the specifications as shown in Table 3. Ethernet will be used for additional services to enhance the broadcast or OB. Typical uses will include wagering data, runner tracking/timing, return vision, talkback and remote control. Ethernet Interface Data rate Access method Frame structure Transmission method Transmission Code Transmission media Max cable length 10/100/1000 Mb/s CSMA/ CD Full-Duplex IEEE802.3/IEEE802.3ab Baseband <10BASE-T>: Manchester <100BASE-TX>: 4B/5B+MTL-3 <1000BASE-TX>: 8B1Q4 <10BASE-T>: UTP CAT3 or higher <100BASE-TX>: UTP CAT5 or higher <1000BASE-TX>: UTP CAT5e or higher 100m Table 3 2.4 SERVICE INPUT SUMMARY HD Video (HD DVN) ETHERNET 1 x SDI Embedded Audio required Channel 1 Race Caller Channel 2 Other Audio Channel 3 Other Audio Channel 4 Other Audio 1 x RJ45

2.5 CUSTOMER INTERFACE PANEL (CIP) The CIP will be present inside a purpose built housing and located as close as possible to where the OB vehicle parks. CONCEPTUAL DRAWING OPTIC FIBRE to Exchange No more than 50m DVN2 Equipment Housing CISCO router Media Links Hardware DVN2 Deployment Typically No more than 50m unless by exception DVN2 CIP Video Data Customer Video Cable Customer Data Cable Customer Outside Broadcast truck 100m Practical Distance Limitation 2.6 CABLE LENGTH LIMITATION Recommended patch cables and maximum lengths for connection to the CIP unit, unless otherwise stated on the CIP panel, are: VIDEO PATCH CABLE DATA CABLE Belden 1694A Coax (Black),RG-6 or equivalent Belden Data Twist 3600, Non-Bonded-Pair or equivalent 50 metres max 50 metres max In customer installations where the physical separation between equipment housing and CIP is greater than 50 Meters, the allowed length of Customer RG-6 Coax patch cable will be reduced accordingly so that total distance between Customer OB truck and Telstra equipment housing is Less than 100 Meters. Any reduced max distance for customer cabling will be indicated on the CIP unit. The Customer equipment connecting to the CIP Coax interface must be able to adaptively equalise to a Maximum of 100M RG-6 or equivalent specified coaxial cable. RG-6 Nominal Root F Loss approx 19 db @ 750MHz.

2.7 DRAWINGS Drawings of the CIP are provided below. The customer access is via the small door in the centre of the box which is opened by turning the lock in the lower centre of this panel. The door hinges to 90 degrees. Labelling will be provided on the CIP indicating the Telstra service numbers and relevant connector. The HD300 video service will be provided on Video Connector 1. The Media Data service (input to the Managed Router) will be provided on Data 1.

3 AUDIO 3.1 RACE CALLER & COMMENTARY 3.2 SYNC The call of the Race provided to SKY is to be embedded on channel 1 of the SDI vision fed via the SKY Customer Interface Panel. All other audio embedded on channels 2, 3 or 4 as required. Audio shall be supplied at a nominal level of +4 dbm into a 600 Ohm load and have a frequency response of 50 Hz to 15 KHz plus/minus 3dB. The audio signal should have a signal to noise ratio of 48 db (at 3% distortion level) or better. Distortion should be less than 2% at 1KHz (+8dBu). All audio provided should be timed and in synchronisation with the video feed as it enters the Customer Access Point. This ensures lip sync is correct and no delay is evident in either of the mediums. 3.3 TALKBACK The on course video provider should have a talkback facility to enable talkback communications with SKY Broadcast Control Centre and also when applicable to the talent on course at a live hosting. Talkback will not change and connectivity will be via the current DVN1(old) CIP. There are no changes to this connectivity until further notice.

At some point in future the Ethernet interface will be used to provide talkback functionality. Once a full proof of concept has been performed and standards established this document will be re-issued. Cutover to an alternate technology will occur by December 2016. 3.3.1 4-WIRE ANALOGUE AUDIO PORTS The expected nominal audio level from customer equipment into the TA is +4 dbm but the TA should cater for a headroom of up to 8 db. The following parameters have been defined to meet the above requirements. The send relative level of the 4-wire audio TA must be +9dBr. The receive relative level of the 4-wire audio TA must be +9dBr. The 4-wired analog audio ports will be able to pass a level of at least +12 dbm without clipping. The output impedance (Z out) of the receive port is 600 Ohm with a return loss>= 15dB at frequencies between 300 and 3100 Hz. The input, impedance (Z in) of the send port is 600 Ohm with a return loss>= 15dB frequencies between 300 and 3100 Hz. The level of cross talk between send & receive ports must be less than 70dB. The level of cross talk between the 4 wire ports must be less than 70dB. The 4-wire analogue interfaces must be classified as TNV2 and must be electrically isolated with respect to each other, and from any reference or earth potential. There must not be DC potential present on any 4-wire interface. 4 RETURN VISION Vision from studio to racetrack will be provided via the Ethernet interface when a live hosting is performed on track. This will be in H.264 DVB standard over the IP network, requiring the OB provider to have an IP decoder available. This will be a compressed stream suitable for the reading of wagering data. 5 OFF AIR MONITORING All course providers must be able to access the various (Sky 1, Sky 2 or Sky Central) SKY Racing pictures via the course SKY decoder. Providers should monitor the primary Sky Racing channel they will be broadcasting on. SKY Satellite Communications (Satcomms), which are also distributed by SKY and available on the SKY decoder, this is available on the Sky Racing 1 service only currently, this must be monitored in the OB van and be made available to the race caller in the race callers box along with the SKY vision signal. Where other SKY Racing channels "off air" signals are available these should also be monitored in the OB van.

6 CAMERAS 6.1 QUALITY Industry accepted broadcast quality CCD (x3) camera with minimum horizontal resolution (as measured at the centre of picture) of 700 television lines and a minimum vertical resolution of 450 television lines. Electronic signal processing is required to provide correct exposure when a scene is backlit. All cameras included within the televised coverage must be 16 x 9 (widescreen) capable with component interface to production equipment. All multi-camera outside broadcasts are to have equal levels and phase on all sources. Camera Control Units (CCU's) or Camera Base Station Units (BSU's) are required for remote control of iris, black level, colour balance etc. Industry accepted broadcast quality slow motion capable VTR or VDR with component digital input and output video interface. All equipment shall be maintained to the respective manufacturer specifications. 6.2 ROBOTICS The lateral, super slo-mo and colour cameras should always be manned by a camera operator using the viewfinder device locally attached to the camera. It is acceptable to use robotics for other cameras so long as the requirements of this document are met and all scenarios of capturing live racing are considered, especially ensuring all runners can be captured in a shot. 6.3 OUTPUT It is a requirement for all On-Course Vision Providers to Supply SKY with a digital signal complying with SKY's digital specifications detailed earlier in this document. The source digital vision must be supplied in 16x9 (shot 16x9 95% safe). When shooting 16 x 9 95% "safe", it is recommended that the camera operator has markings on his viewfinder or eyepiece. If this is not possible, the relevant monitors in the OB van should be marked with "china graph" or tape to show the boundaries of shot composition in 16 x 9 "safe" this framing must be relayed to the camera operator to ensure the correct "safe'' composition is retained. Please note that your any SD SDI equipment shall conform to ETSI EN300294 Television systems; 625-line television, Wide Screen Signaling WSS) and ltur BT.1119-2 Wide Screen Signaling for Broadcasting. 7 LATENCY Every effort must be made to minimise latency of the video and audio contribution. All processing should be performed as real time as possible, accepting some equipment introduces a frame of latency due to processing.

8 RACEDAY OPERATIONS The following lists standard procedures to follow when carrying out connectivity for each race meeting. When a customer's signal is not connected to the SKY DVN CIP a track identification signal will be generated from the Telstra equipment at the track. This signal will allow for continuity testing from the track to SKY at non race meeting times or before the OB provider plugs in. 8.1 PRE-RACE CHECKS Initial contact with Sky Broadcast Control Centre (BCC) must occur 60 minutes prior to the scheduled first commitment with Sky i.e. Live Hosting, preview or start time of the first race, for DVN sites 60 mins and 30 mins for SNG sites. Contact phone numbers should be confirmed with Sky BCC for use during the telecast. As the DVN circuit is available for the entire booking, end to end technical checks can be completed as early as possible. Final checks must be completed 15 minutes prior to first commitment. 75% Colour bars and +4dBu 1 KHz tone is to be provided prior to live pictures and audio in order for SKY to check for quality and equalise for any losses in the signal path. These bars and tone are to be representative of the live pictures and audio that is to follow in all technical parameters. Broadcast Control Centre - 02-9452 8448 or 02-9452 8465 8.2 AFTER RACE CHECKS Contact the Sky BCC at the conclusion of the commitment (race meeting) to re-establish the test signal from the DVN Do not leave equipment or cables patched into the DVN before departing the track Ensure DVN CIP is secured before leaving the track

9 REFERENCES Document Number AES3 ETSI EN 50083-9 (2002) IEEE 802.3 IEEE 802.3ab ISO/IEC 13818-1 (1997) SMPTE 259M Standard SMPTE RP 184 SMPTE 272M Standard SMPTE 274M-2008 SMPTE S292-2008 SMPTE S296M-2001 Title Recommended practice for digital audio engineering - Serial transmission format for two-channel linearly represented digital audio data Interfaces for CATV/SMATV Headends and Similar Professional Equipment for DVB/MPEG-2 Transport Streams IEEE Standard for Information technology Telecommunications and information exchange between systems Local and metropolitan area networks Specific requirements, Part 3: Carrier sense multiple access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications 1000BASE-T (published as Clause 40 in Section 3 of the 802.3 specification) Information Technology Generic coding of moving pictures and associated audio information: Systems Television SDTV Digital Signal/Data Serial Digital Interface Specification of Jitter in Bit-Serial Digital Systems Television - Formatting AES/EBU Audio and Auxiliary Data into Digital Video Ancillary Data Space 1920 x 1080 Image Sample Structure, Digital Representation and Digital Timing Reference Sequences for Multiple Picture Rates 1.5Gb/s Signal/Data Serial Interface 1280x720 Progressive Image Sample Structure Analogue and Digital Representation and Analogue Interface

10 ACRONYMS The following words, acronyms and abbreviations are referred to in this document. Term AES AES3 ASI ASI 100 Connect ASI 100 Link DVB DVB ASI 25 Source DVB ASI 25 DR Source DVB ASI 25 Destination DVB ASI 25 Return DVN EBU ETSI IEEE HD 300 Connect HD Link ISO ITU-T MMN MPEG SD Connect SD Link SDI SMPTE Target Service Availability Video Intercap WAN Definition Audio Engineering Society Recommended practice for digital audio engineering -- Serial transmission format for two-channel linearly represented digital audio data Asynchronous Serial Interface. An interface standard for conveying MPEG-2 transport streams between professional equipment. DVN service for the carriage of ASI signals connecting to MMN sites, with a transport stream rate no greater than 100Mbps DVN service for the carriage of ASI signals between metro sites with a transport stream rate no greater than 100Mbps Digital Video Broadcasting DVN service for the carriage ASI signals to MMN sites, with a transport stream rate no greater than 25Mbps. Associated with one or more DVB ASI25 Destination services. DVN service for the carriage ASI signals to MMN sites, with a transport stream rate no greater than 25Mbps. Associated with one or more DVB ASI25 Destination services. DVN service for the carriage ASI signals from MMN sites, with a transport stream rate no greater than 25Mbps. Associated with a DVB ASI 25 Source or DR Source service DVN service for the carriage ASI signals to or from MMN sites, with a transport stream rate no greater than 25Mbps. Digital Video Network European Broadcasting Union European Telecommunications Standards Institute Institute of Electrical and Electronics Engineers DVN service for the carriage of HD-SDI or SD-SDI signals connecting to MMN sites. HD signals are compressed using the J2K algorithm to approximately 300Mbps for carriage through the network. DVN service for the carriage of HD-SDI and SD-SDI signals between metro locations. Both. signal types are carried uncompressed International Standards Organisation International Telecommunications Union - Telephony (formerly CCITT) Multi Media Node Motion Picture Experts Group. An international group of industry experts set up by the ISO to standardise compressed moving pictures and audio. DVN service for the carriage of SD-SDI signals connecting to MMN sites. DVN service for the carriage of SD-SDI signals between metro sites Serial Digital Interface. A standard for digitisation of video component signals. Variously known as Serial Digital Component Video, Rec. 601, 270Mbit/s Video and SMPTE 259M. Society of Motion Picture & Television Engineers Target service availability represents the percentage of time that a path is meeting or exceeding the performance requirements in any consecutive 12 month period DVN Service between MMN Sites supporting the carriage of DVN Connect services Wide Area Network