VBrick Systems VB6000, VB4000, VB5000 manual How Passthrough Works

Page 36

How Passthrough Works

VBrick appliances are able to receive data on a particular TCP/IP port and transparently output that data to a serial port. Conversely, any data input to a serial port can be passed through to other devices connected to that TCP/IP port. Devices include other VBricks or special applications connected to the appropriate TCP/IP port. This feature is called "Serial Port Passthrough." COM1 is assigned port 4439 while COM2 uses port 4414. A typical application is for two VBricks connected to each other's TCP/IP port 4439. In this case, characters typed into a terminal program attached to one VBrick's serial port appear on a terminal program attached to the other VBrick's serial port. In this case, the TCP/IP network serves as an intermediary between the serial ports of two VBrick appliances.

You must select configuration settings to enable Serial Port Passthrough. First it is necessary to decide if the appliance will be designated as an Initiator or Responder of Passthrough connections. If configured as an Initiator it will continuously attempt to setup a Passthrough connection to other devices. When configured as a Responder it will accept up to 64 connections from Initiator appliances. It is possible to Disable Passthrough Mode, so that the VBrick neither initiates nor responds to Passthrough requests. If a VBrick is set to be an Initiator, a Destination must be selected. The appliance will use the destination information when trying to establish a connection. The destination can be configured as follows:

•Dedicated

•Remote COM1/COM2 using Slot1 Video endpoint

•Remote COM1/COM2 using Slot2 Video endpoint

•Slot1/Slot2 MetaData

Dedicated

means that the initiator will attempt to make a Passthrough

 

connection to the Dedicated Address and Port configured by the

 

user. Please note that the Dedicated Address Port configuration

 

parameters are used only when the initiator destination is set to

 

Dedicated. The Dedicated Address can either be configured using

 

IP Address or Host Name. The Dedicated Address Mode

 

parameter is used to specify whether the IP Address or Host Name

 

will be used. If the Dedicated Address Mode is set to Host Name,

 

the Dedicated Address is configured using the Dedicated Host

 

Name parameter. Likewise, if the Dedicated Address Mode is set

 

to IP Address, the Dedicated Address is configured using the

 

Dedicated IP Address parameter.

 

 

Slot1 Video Endpoint

use address information that is configured for the device in that

Slot2 Video Endpoint

slot. If the device in that slot is an encoder, the initiator will

 

attempt to establish a Passthrough connection to the unicast

 

Destination IP Address configured as Destination 1 for that slot.

 

Note: Passthrough is supported using Destination 1 only;

 

Destination 2 has no meaning for the Passthrough operation. If

 

the device is a decoder, the initiator will attempt to establish a

 

Passthrough connection with the address configured as the

 

Decoder Receive IP Address and Port. The receive address can be

 

either multicast or unicast.

 

 

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© 2008 VBrick Systems, Inc.

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Contents VB4000-5000-6000 Series Network Video Appliances Copyright Contents Using the IR Remote Command Line InterfaceIntegrated Web Server VB6000 Reference IndexContents Organization For More InformationGetting Help Font ConventionsPrinter-Friendly Setup Overview Topics in this chapterUsing the Quick Start Guide COMAppliance Setup Connect Output to a Video MonitorConnect an Audio/Video Input Source Power-on the Appliance Connect to the IP NetworkSet the IP Address Get the IP Address from a Dhcp ServerSet the IP Address with the Remote Control Set the IP Address with HyperTerminalInstall StreamPlayer Plus Verify OperationVerify Mpeg 2 Operation Verify Mpeg 4 OperationVerify WM Operation StreamPlayer Plus Installing a System Upgrade OverviewPassword button Management Tools VBrick Tool DescriptionFront Panel Edit VBDirectoryManagement Tools Telnet Simple Network Management ProtocolVBrick SDK VBrick Systems, Inc Understanding I, B, P Frames, Delay, and Synchronization Video BasicsMPEG-2 Encoder Compression Group of Pictures GOP Reference DistanceInterrelationship MPEG-2 Delay GOP Length N Reference Frame DistanceReceiver Sensitivity Transmit Power MPEG-2 AudioMPEG-4 Encoder Compression MPEG-4 AudioGetting the Best Video IP Address Configuration using Host Names Video ResolutionNetwork Considerations Assigning Multicast AddressesIP Differentiated Services Diffserv Priority Level Type of ServiceTypical Applications VBrick Video Stream HandlingNetwork Jitter Ethernet IPOne-Way Broadcast and Desktop Streaming Two-Way Interactive Conferencing VBrick Accessories Serial Port PassthroughHow Passthrough Works Serial Port Passthrough Using Telnet Mpeg Features BillboardPicture-in-Picture Embedded Web BrowserWM Features VBrick Systems, Inc Using IWS Integrated Web ServerLogin User Level Default User Name Default Password PrivilegesWelcome Screen Menu Options Option DescriptionView Mode Making ChangesRebooting Edit ModeUsing Apply, Revert, and Defaults LogoutServing Custom ASX and Html Files Multiple AppliesVBrick Systems, Inc Front Panel Edit Key DescriptionError Message Description Dialog Window DescriptionMPEG-2/MPEG-4 Remote Control Controlling a VBStar Button Description Controlling VBrick Features Picture In PictureBillboard Icon DescriptionConference Guide WM Remote Control Program GuideConnecting with HyperTerminal Connection ModesConnecting with Telnet MIB-Based Command Line Interface Command Response Finding VBrick ParametersSetting VBrick Parameters Using a MIB BrowserLogging Using Get/Set Variable Commands Using Get/Set Table CommandsBeginning or Ending an Edit Session VBrick Stab vbrickSlot1EncoderHttpPushEnable.3=2 Error Handling Applying ChangesSaving Changes CLI Examples Example 1 Set VariableExample 2 Get Variable Example 3 Set Multiple VariablesExample 4 Get Table Variables Example 5 Set Table VariablesCLI Sample Script Forever Menu-Based Command Line Interface Editing Configuration Parameters Setting and Changing ParametersSetting System Date and Time Selecting Parenthetical ItemsUsing Spaces Other Editing KeysVBrick Appliance Models VB6000Series Encoder Models Series Decoder ModelsVB6000 Expanded Vbssm Expanded Vbssm Activity LEDSequence Color Description Device Interfaces RS-232/422/485 COM Port PinoutsSolid. Indicates no Video In otherwise the LED is off Pin Function DirectionPower In Entry Interface Power Out Exit InterfaceEthernet Port Video-In and Video-Out CompositeVideo-In and Video-Out S-Video Interface AudioMateAudio In and Audio Out Pin Description TypeVpp Balanced Relay Port Event Triggering Activity LEDChange RTS/DTR Control to Force On and click Apply VBrick Systems, Inc Index Index
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