COBHAM Veta Network Adapter (VNA) User manual

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Cobham Surveillance
GMS Products
1916 Palomar Oaks Way Ste 100
Carlsbad, CA 92008
100-M0105X1 T: 760-496-0055
06/11/09 F: 760-496-0057
www.cobham.com/gms
The most important thing we build is trust.
User’s Manual
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VETA NETWORK ADAPTER (VNA)
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Table of Contents
1.0ACRONYMS................................................................................................................................................................ 5
2.0INTRODUCTION .................................................................................................................................................... 6
2.1Warranty Cover ........................................................................................................................................................................ 6
2.2Safe Operating Procedures ................................................................................................................................................. 6
3.0THEORY OF OPERATIONS............................................................................................................................... 7
3.1Applications................................................................................................................................................................................ 7
4.0HARDWARE OVERVIEW ................................................................................................................................... 9
4.1VNA Interfaces ......................................................................................................................................................................... 9
4.2Network..................................................................................................................................................................................... 10
4.3VNA Chaining Interconnection ..................................................................................................................................... 11
4.3.1IP Radio Configuration................................................................................................................................................. 11
4.3.2IP Streaming Configuration....................................................................................................................................... 11
5.0CONTROL PROTOCOLS ................................................................................................................................... 13
5.1Remote Control..................................................................................................................................................................... 13
5.2Web Browser Control ......................................................................................................................................................... 15
5.3Streamer Configuration Parameters............................................................................................................................ 17
5.3.1IP Address .......................................................................................................................................................................... 17
5.3.2Multicast Address ........................................................................................................................................................... 17
5.3.3Port number ...................................................................................................................................................................... 17
5.3.4TTL......................................................................................................................................................................................... 17
5.3.5SAP Address ...................................................................................................................................................................... 17
5.3.6SAP/SDP Data ................................................................................................................................................................... 17
6.0IP RADIO CONFIGURATION PARAMETER ...................................................................................... 18
6.1.1Bit Rate ................................................................................................................................................................................ 18
6.1.2Router Mode ..................................................................................................................................................................... 18
6.1.3IP Data Auto Rate (Optional) .................................................................................................................................... 18
7.0SOFTWARE DECODER..................................................................................................................................... 19
7.1General Information ........................................................................................................................................................... 19
7.2Decoding Multicast Streams........................................................................................................................................... 19
7.3Player.......................................................................................................................................................................................... 19
7.4AES Encrypted Streams..................................................................................................................................................... 20
8.0SPECIFICATIONS .............................................................................................................................................. 23

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List of Figures
Figure 1 Compact Surveillance Bridge.............................................................................................................................................8
Figure 2 VNA Connectors Layout.......................................................................................................................................................9
Figure 3 Chaining Interconnections for IP Radio....................................................................................................................11
Figure 4 Chaining Out TX to Chaining In VNA..........................................................................................................................12
Figure 5 Chaining Out VR to Chaining In VNA..........................................................................................................................12
Figure 6 VNA Connectors Layout....................................................................................................................................................12
Figure 7 Login Screen............................................................................................................................................................................15
Figure 8 IP Streamer Browser............................................................................................................................................................16
Figure 9 IP Radio Browse.....................................................................................................................................................................16
Figure 10 Player with one stream....................................................................................................................................................19
Figure 11 Player with no stream......................................................................................................................................................20
Figure 12 Decoder Options Window.............................................................................................................................................21
Figure 13 Record File.............................................................................................................................................................................22
Figure 14 Play File...................................................................................................................................................................................22
List of Tables
Table 1 Connector Pin Out J1............................................................................................................................................................10
Table 2 Connector Pin Out J3............................................................................................................................................................10
Table 3 Connector types.....................................................................................................................................................................10
Table 4 Packet Structure from PC...................................................................................................................................................13
Table 5 Packet Structure Reply from controlled device.......................................................................................................13
Table 6 Command List..........................................................................................................................................................................14
Table 7 Streamer Mode Commands..............................................................................................................................................14
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RevisionHistory
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VersionDateMainChangesfromPreviousversionCreatedby
X103‐09‐2010InitialRelease
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1.0 Acronyms
Thissectionlistsanddescribesthevariousacronymsusedinthisdocument.
NameMeaning
16QAM16‐stateQuadratureAmplitudeModulation
A/VAudio/Video
AESAdvancedEncryptionSystem
ABSBasicEncryptionSystem(8bit)
COFDMCodedOrthogonalFrequencyDivisionMultiplexing
CVBSCompositeVideo
BDCBlock‐DownConverter
FECForwardErrorCorrection
GUIGraphicalUserInterface
I/OInput/Output
KBaudKilobaudpersecond
KbpsKilobitspersecond
M2DMessengerDecoder
M2TMessenger2Transmitter
MbpsMegabitspersecond
MDLMessengerDigitalLink
MERModulationErrorRate
MPEGMovingPictureExpertsGroup
MVRDMessengerVETAReceiverDecoder
NTSCNationalTelevisionSystemCommittee
PALPhaseAlternationLine
QPSKQuadraturePhaseShiftKeying
QAMQuadratureAmplitudeModulation
RFRadioFrequency
RXReceiver
S/NSignal‐to‐NoiseRatio
THDTotalHarmonicDistortion
TXTransmitter
VDCVolts(DirectCurrent)
VRVETAReceiver
VTVETATransmitter
VDRVETADigitalRepeater
CSMCompactSurveillanceModem
UDPUserDatagramProtocol
VNAVETANetworkAdapter

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2.0 Introduction
The VETA IP Network Adapter (VNA) is a companion product to GMS’ VETA Transmitters and VETA
Receiver (VR) that provides either a Simplex or Duplex Link between GMS’ VETA product line and a 10/100
Base-T LAN. In order to generate streams suitable for streaming over IP networks, VETA transmitters or
receivers are required. These interface to the network engine hardware via their chaining interfaces.
The VNA can be used for following applications:
IP Streaming Audio/Video/User Data from a GMS VR Receiver
IP Streaming Audio/Video/User Data from LAN to GMS VETA wireless link
Wireless LAN Bridging
Simultaneous wireless Audio/Video Transmission with LAN Bridging
Monitoring Platforms
Mobile and portable A/V applications
This manual provides information on how to operate the VNA (VETA Network Adapter) as well as
pertinent technical information related to the overall system.
2.1 Warranty Cover
GMS offers a 12 month standard product warranty. During this period, should the customer encounter a
fault with the equipment we recommend the following course of action:
Check the support section of the website for information on that product and any
software/firmware upgrades.
If fault persists call our support line and report the fault. If fault persists and you are informed to
return the product, please obtain an RMA number from the GMS support department or website and
ship the equipment with the RMA number displayed and a description of the fault. Please email the
support section the airway bill/consignment number for tracking purposes.
Depending on the nature of the fault GMS endeavor to repair the equipment and return it to the
customer within 14 days of the item arriving at our workshops. Obviously it is impossible to cater for all
types of faults and to manage 100% replacement part availability, and delays are sometimes inevitable.
Please contact GMS for details of packages that can be tailored to meet your individual needs, whether
they are service availability, technical training, local geographic support or dedicated spares holdings.
2.2 Safe Operating Procedures
Ensure that the power supply arrangements are adequate to meet the requirements of VETA
product.
Operate within the environmental limits specified for the product.
Only authorized, trained personnel should open the product. There are no functions that required
the User to gain access to the interior of the product.

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3.0 Theory of Operations
The transmission of compressed video across an IP network is often called ‘streaming video’ and can
vary from full frame rate high quality to reduced resolution low quality (often called thumbnails) video.
Streaming video connections can be point-to-point, going from one source to one receiver (uni-cast)
or from one source to multiple receivers (multi-cast).
IP Networks can be either private networks, operated by a single organization (usually described as
Private LANs or WANs – Local Area or Wide Area Networks), or public networks, where the capacity is
shared between many users (the internet or 3G networks are typical of public networks). In a private
network such as those operated by many law enforcement customers, the capacity available on the
network is typically 10 to 100Mb/s and the network is rarely operated close to this capacity.
In a public network the capacity is usually purchased by the user on a ‘pay per use’ scheme, and the
capacity is typically very limited and is contended in nature. The capacity on contended networks is
both limited and variable. Normally, 200 Kb/s is available on average, but this might vary at times from
0kb/s to 500kb/s. This limited, but variable, capacity makes streaming video of any quality very
difficult.
Private networks will often allow multi-cast transmissions, but this may require intervention of the
network controller to configure routers and switches to allow multi-cast video streaming. Public
networks, on the other hand, rarely allow multi-cast transmissions.
3.1 Applications
Audio/Video Streaming
LAN Bridge
Monitoring Platforms
Mobile and Portable AV Applications
The VETA IP Network Adapter (VNA) is a companion product to GMS’ VETA VT Transmitter & VR
Receiver that provides either a Simplex or Duplex link between GMS’ VETA product line and a 10/100
Base-T LAN. This enables the user to build wireless digital microwave video systems. The standard
VETA Encoder/Transmitter and Receiver/Decoder products have been designed to provide rugged
point-to-point links for high quality full frame rate video and audio, even in non-line of sight and urban
environments.
VNA is a stand-alone boxed product that can be connected to VETA Receivers or Transmitters and
enables streaming video on to public or private networks. When connected to private networks, the
VNA generates a high quality multi-cast video stream. When connected to a public network, it
produces a reduced frame rate thumbnail stream at a data rate matching that available on the network.
VNA can be used for the following Simplex applications;
IP Streaming Audio/Video/User Data from a GMS VETA Receiver (VR) or VETA Transmitter
(VT-C or VT-2W through Chaining Output).
IP Streaming Audio/Video/User Data from LAN to a GMS VETA Wireless Link

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Figure 1Compact Surveillance Bridge
GMS’ Compact Surveillance Bridge (CSB) is an example of full Duplex system using VNAs, VTs and VRs.
The CSB can provide
Wireless Long or Short distance LAN Bridging
Simultaneous Wireless Audio/Video Transmission w/ LAN Bridging
Both the VT and VNA can be mounted on the bottom of the VR receiver. VNA interfaces with RJ-45
connector to IP nodes.

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4.0 Hardware Overview
Note – it is recommended to make all signal connections before applying power to either the VNA
Network Adapter, or associated VETA product.
Note - care should be taken when making connections to the card not to damage the headers or
connectors. Repeated connection and disconnection is not recommended.
Note - that care should be taken to ensure the correct polarity and voltage of the DC supply to
avoid damage to the VNA. There is neither reverse polarity nor over voltage protection on the VNA.
4.1 VNA Interfaces
The VNA has connector layout shown in Figure 2.
Figure 2 VNA Connectors Layout
The VNA is powered from a 12V DC supply. The power supply employed should be capable of
supplying 12V at up to 500mA, with a voltage tolerance +/-0.5V.
The connectors are described in Table 1andTable 2.
P – Power Pin; I – Input; O – Output; I/O – Bidirectional
All logic is active high unless stated otherwise
All logic levels are 3.3V LVTTL
* indicates analog signal
J3 J1
J2

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Table 1 Connector Pin Out J1
CHAINING/CONTROL J1 SIGNAL Function
J1 PIN 1 Power P
J1 PIN 2 GND P
J1 PIN 3 RS232 CTRL TX O*
J1 PIN 4 RS232 CTRL RX I*
J1 PIN 5 GND P
J1 PIN 6 RS232 DATA TX O*
J1 PIN 7 RS232 DATA RX I*
J1 PIN 8 GND P
J1 PIN 9 Chaining Clock Input I
J1 PIN 10 GND P
J1 PIN 11 Chaining Data Input I
J1 PIN 12 GND P
J1 PIN 13 Chaining Clock Output O
J1 PIN 14 GND P
J1 PIN 15 Chaining Data Output O
Table 2 Connector Pin Out J3
ETHERNET J3 SIGNAL
J3 PIN 1 TX+ White/Orange
J3 PIN 2 TX- Orange
J3 PIN 3 RX+ White/Green
J3 PIN 4 Not Connected Blue
J3 PIN 5 Not Connected White/Blue
J3 PIN 6 RX- Green
J3 PIN 7 Not Connected White/Brown
J3 PIN 8 Not Connected Brown
Table 3 Connector types
CONNECTOR Function PART NOTES
J1 Control/Chaining DB-15, M Standard
J2 Ethernet RJ45 No Function
J3 Ethernet RJ45 Standard
4.2 Network
The VNA has two RJ45 sockets for connection to 10 Base T or 100 Base T Ethernet networks J2 and J3,
of these two connections only J3 is active. The network interfaces automatically switch between 10
Base T and 100 Base T as required. The network interfaces do not automatically compensate for
Ethernet crossovers. The VETA Network Engine network interfaces are wired for straight connection to