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Kramer VS-44DT, User Manual

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Kramer VS-44DT User Manual Download Page 12

 

VS-44DT 

– 

 

Overview

 

5 

 

 

A store and recall facility for preset configurations 

 

Automatic output shutdown if no input signal is detected after a configurable 

idle period 

 

An LCD display for easy configuration and operation 

 

Support for Kramer Protocol 3000 

 

A lock button to prevent unwanted tampering with the settings 

 

1U height that fits a stan

dard 19” professional rack enclosure 

You can control the 

VS-44DT

 using the front panel buttons, or remotely via: 

 

Built-in, embedded web pages using a standard web browser over Ethernet 

 

RS-232 serial commands transmitted by a touch screen system, PC or other 

serial controller 

 

The Kramer infrared remote control transmitter 

3.1 

About HDBaseT™ Technology 

HDBaseT™ is an advanced, all-in-one connectivity technology (supported by the 

HDBaseT Alliance). It is particularly suitable in the ProAV 

– and also the home – 

environment as a digital networking alternative, where it enables you to replace 

numerous cables and connectors by a single LAN cable used to transmit, for 

example, uncompressed, full high-definition video, audio, IR, as well as various 

control signals. 

 

 

 

The products described in this user manual are HDBaseT certified.  

3.2 

Defining the VS-44DT 4x4 HDMI/HDBT Matrix Switcher 

This section defines the 

VS-44DT

. 

 

Summary of Contents for VS-44DT

Page 1: ...USER MANUAL MODEL VS 44DT 4x4 HDMI HDBT Matrix Switcher with PoE P N 2900 300470 Rev 1 www KramerAV com ...

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Page 6: ...figurations 18 6 3 Acquiring an EDID 19 6 4 Disconnecting One or All Outputs 19 6 5 Resetting the Device to Factory Default Configuration 20 6 6 Locking and Unlocking the Front Panel 21 7 Configuring the VS 44DT 22 7 1 Using the Menu 22 7 2 Selecting DHCP 24 7 3 Configuring the IP Network Address 24 7 4 Resetting the VS 44DT to Factory Default Configuration 25 8 Operating the VS 44DT Remotely Usin...

Page 7: ...ternet Protocol Properties Window 15 Figure 7 TP PINOUT 16 Figure 8 Switching Page 27 Figure 9 Switching Button Details 28 Figure 10 Input Edit Window 29 Figure 11 HDBaseT Output Properties Window 30 Figure 12 HDMI Output Properties Window 30 Figure 13 Device Settings Page 31 Figure 14 Authentication Page 32 Figure 15 Login Page 33 Figure 16 EDID Page 34 Figure 17 Copying the EDID 35 Figure 18 EDI...

Page 8: ...defined by function GROUP 1 Distribution Amplifiers GROUP 2 Switchers and Routers GROUP 3 Control Systems GROUP 4 Format Standards Converters GROUP 5 Range Extenders and Repeaters GROUP 6 Specialty AV Products GROUP 7 Scan Converters and Scalers GROUP 8 Cables and Connectors GROUP 9 Room Connectivity GROUP 10 Accessories and Rack Adapters GROUP 11 Sierra Video Products GROUP 12 Digital Signage GRO...

Page 9: ...e to poor matching and elevated noise levels often associated with low quality cables Do not secure the cables in tight bundles or roll the slack into tight coils Avoid interference from neighbouring electrical appliances that may adversely influence signal quality Position your VS 44DT away from moisture excessive sunlight and dust This equipment is to be used only inside a building It may only b...

Page 10: ...he amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected and recycled To comply with the WEEE Directive Kramer Electronics has made arrangements with the European Advanced Recycling Network EARN and will cover any costs of treatment recycling and recovery of waste Kramer Electronics branded equipment on arrival at the EARN facility For details of Kramer s rec...

Page 11: ...tible PoE receivers The VS 44DT features Four HDMI and five IR inputs Two HDMI four HDBaseT and five IR outputs PoE support on all four HDBaseT outputs PoE provider to HDBaseT receivers such as the TP 588D and TP 780Rxr HDBaseT range up to 130m 430ft at normal mode 2K up to 100m at normal mode 4K up to 180m 590ft ultra mode 1080p 60Hz 24bpp when using recommended Kramer cables available at www kra...

Page 12: ...t RS 232 serial commands transmitted by a touch screen system PC or other serial controller The Kramer infrared remote control transmitter 3 1 About HDBaseT Technology HDBaseT is an advanced all in one connectivity technology supported by the HDBaseT Alliance It is particularly suitable in the ProAV and also the home environment as a digital networking alternative where it enables you to replace n...

Page 13: ...EDID Button Press to copy the EDID from an output to an input see Section 6 3 9 LOCK Button Press and hold to lock the front panel buttons see Section 6 6 Press and hold again to unlock 10 MENU Button Press to enter the configuration menu or to move up one level when inside the menu see Section 7 1 11 Menu Navigation Pad Use the Enter up down left and right buttons to navigate the menu or to modif...

Page 14: ...ds them over HDBT OUT 4 OUT 3 5mm Mini Jack Connect to the fourth IR emitter Transmits IR commands that are sent over HDBT OUT 4 19 OUT 1 HDBT RJ 45 Connector Connect to the first HDBT receiver for example the TP 580RXR 20 HDMI Connector Connect to the first HDMI receiver for example an HDMI display 21 OUT 2 HDBT RJ 45 Connector Connect to the second HDBT receiver for example the TP 580RXR 22 HDMI...

Page 15: ...Connect to the second HDMI source for example a Blu ray disk player 32 HDMI IN 3 Connector Connect to the third HDMI source for example a Blu ray disk player 33 HDMI IN 4 Connector Connect to the fourth HDMI source for example a Blu ray disk player 34 IR OUT 3 5mm Mini Jack Connect to an IR emitter or IR receiver for receiving the combined IR signals from all HDBT port IR transmissions 35 IR IN 3 ...

Page 16: ...VS 44DT Installing in a Rack 9 4 Installing in a Rack This section provides instructions for rack mounting the unit ...

Page 17: ...nd then switch on the power to each device Figure 3 Connecting the VS 44DT 4x4 HDMI HDBT Matrix Switcher To connect the VS 44DT as illustrated in the example in Figure 3 1 Connect the HDMI sources for example Blu ray players to the HDMI IN 1 and IN 2 connectors 2 Connect an external IR sensor to the IR 3 IN 3 5mm mini jack 3 Connect the IR 1 OUT 3 5mm mini jack to an external IR emitter ...

Page 18: ...nnector 5 1 Connecting the VS 44DT to a Serial Controller You can connect the VS 44DT via an RS 232 connection to a serial controller for example a PC To connect the VS 44DT via RS 232 to a serial controller Connect the RS 232 CONTROL 3 pin terminal block on the rear of the VS 44DT to the 9 pin D sub connector on PC pin TX to pin 2 pin RX to pin 3 pin G to pin 5 5 2 Connecting the VS 44DT to a Ser...

Page 19: ...Ethernet Port Directly to a PC You can connect the Ethernet port of the VS 44DT directly to the Ethernet port on your PC using a crossover or straight cable with RJ 45 connectors This type of connection is recommended for identifying the VS 44DT with the factory configured default IP address After connecting the VS 44DT to the Ethernet port configure your PC as follows 1 Click Start Control Panel ...

Page 20: ...onnecting the VS 44DT 13 Figure 4 Local Area Connection Properties Window 4 Highlight Internet Protocol Version 4 TCP IPv4 5 Click Properties The Internet Protocol Properties window appears as shown in Figure 5 ...

Page 21: ...4 Properties Window 6 Select Use the following IP Address for static IP addressing and fill in the details as shown in Figure 6 For TCP IPv4 you can use any IP address in the range 192 168 1 1 to 192 168 1 255 excluding 192 168 1 39 that is provided by your IT department ...

Page 22: ...otocol Properties Window 7 Click OK 8 Click Close 5 3 2 Connecting the Ethernet Port via a Network Hub or Switch You can connect the Ethernet port of the VS 44DT to the Ethernet port on a network hub or using a straight through cable with RJ 45 connectors ...

Page 23: ...the RJ 45 Connectors This section defines the TP pinout using a straight pin to pin cable with RJ 45 connectors EIA TIA 568B Figure 7 TP PINOUT PIN Wire Color 1 Orange White 2 Orange 3 Green White 4 Blue 5 Blue White 6 Green 7 Brown White 8 Brown ...

Page 24: ...zero indicates that the output port has no input switched to it O 1 2 3 4 I 3 0 1 2 When operating via the front panel buttons if there is no button activity for approximately 30 seconds the procedure is aborted and the display reverts back to the Input Output display After approximately 8 minutes of no activity the LCD turns off Push any button to turn the LCD back on 6 1 Switching Inputs to Outp...

Page 25: ...gurations You can store up to four preset configurations for instant recall The bottom row of input buttons relate to presets one to four To store the current configuration in preset 2 1 Press STO 2 Press IN 2 The selection is displayed in the readout 3 Press STO The current configuration is stored in preset 2 To recall preset 4 1 Press RCL 2 Press IN 4 The selection is displayed in the readout 3 ...

Page 26: ...ut 1 1 Press EDID The button lights red 2 Press Out 3 3 Press In 1 4 Press EDID The button no longer lights and the EDID from Output 3 is stored in Input 1 6 4 Disconnecting One or All Outputs The Off button is used to disconnect one or all currently switched outputs To disconnect one currently switched output for example Output 2 1 Press Out 2 2 Press OFF To disconnect all currently switched outp...

Page 27: ...0 command to reset the device to factory default see Section 11 4 1 3 After a few seconds the VS 44DT is reset to factory default To reset the device to the factory default configuration using the front panel buttons 1 Press the Menu button The Menu button lights and the first option on the menu appears 2 Use the up and down arrows on the keypad to scroll to the RESET TO DEFAULT option 3 Press the...

Page 28: ...s from changing the current configuration To lock the front panel Press and hold the Lock button The button lights the Locked message is displayed briefly and the front panel buttons are locked Pressing any button causes the Locked message to display briefly and the Lock button to flash To unlock the front panel Press and hold the Lock button ...

Page 29: ...navigate the menu Menu Enter the Menu or exit one level when in the Menu Enter Select a parameter value Up or Down scroll up through the parameter Right or Left scroll down through the value list Note If there is no button activity for approximately 20 seconds the display reverts back to the Input Output display 7 1 1 Setting the Audio Source and Volume The Audio Settings menu lets you define whic...

Page 30: ...nd IP network parameters Parameter Description OFF ON Turns DHCP ON and OFF When off set the network parameters see Section 7 2 IP Settings Sets the IP network address Netmask Settings Sets the IP netmask Gateway Settings Sets the IP gateway Note When turning DHCP on the device performs an automatic reset 7 1 5 Ethernet Status Sub menu The parameters in the Ethernet Status sub menu display the TCP...

Page 31: ...he Menu button to display the menu The menu is displayed 2 Using the up or down button move through the menu options until the Network Settings option is displayed 3 Press Enter The DHCP ON and OFF options are displayed 4 Using the left or right button select either ON or OFF 5 Press Enter The change is saved 7 3 Configuring the IP Network Address To configure the IP network address 1 Press the Me...

Page 32: ...eps 6 and 7 until the required address is displayed 9 Press Enter The change is saved 7 4 Resetting the VS 44DT to Factory Default Configuration To reset the VS 44DT to factory default parameters 1 Press the Menu button to display the menu The menu is displayed 2 Using the up or down button move through the menu options until the Reset to Default option is displayed 3 Press Enter The NO and YES op...

Page 33: ...stems and web browsers are supported Windows 7 and higher Chrome version 25 Internet Explorer version 9 Firefox version 19 Mac PC Yosemite 10 and higher Chrome version 51 iOS 8 0 and higher Chrome version 47 Safari N A Android OS 5 0 and higher Chrome version 50 There are eight web pages The Switching page see Section 8 1 The Device Settings page see Section 8 2 The Authentication page See Section...

Page 34: ...hing page appears 8 1 Switching Page Figure 8 shows the Switching page that is also the first web page The column on the left shows a list of all the available web pages The Video switching area lets you select an input to switch to the outputs The model name FW version and IP address appear on the lower left side of the main page The lower part of the screen lets you save the settings and upload ...

Page 35: ...ion 1 Four output buttons Click on the button to select an output 2 Mute button Click to mute the output The mute output is indicated by a small red x on top of the icon 3 Edit button Click to edit the output Properties 4 Input number Indicates which input is switched to this output 0 indicates that no input is connected 5 Four input buttons Click to select an input 6 Output number Indicates the o...

Page 36: ...click that input s edit icon The Input Properties window appears Figure 10 Input Edit Window The Input Properties window enables you to Change the name of the input as you want it to appear in the web page click to save the name Enable disable HDCP Click the exit icon to exit the window ...

Page 37: ...MI properties window for output 1 Figure 11 HDBaseT Output Properties Window Figure 12 HDMI Output Properties Window The Input Properties window enables you to Change the name of the input as you want it to appear in the web page click to save the name Set the HDCP Support to follow the input or follow output Click the exit icon to exit the window ...

Page 38: ... 31 8 2 Device Settings Page The Device Settings page enables you to View the device information Perform firmware upgrade Reset the device to its factory default settings Turn DHCP on and off View and edit the current IP settings Figure 13 Device Settings Page ...

Page 39: ...m www kramerav com downloads VS 44DT 2 Click START UPGRADE The following message appears 3 Click OK The new firmware is installed Do not interrupt the procedure or the device may be rendered inoperable 4 Wait until the device reboots automatically at the end of the procedure 8 3 Authentication Page The Authentication page enables you to Turn web page authentication on and off Set the web password ...

Page 40: ...eb Pages 33 If security is activated you need to access the web pages using the password and then click the arrow Figure 15 Login Page If authentication is enabled enter a valid user name default Admin and password default Admin and click on the arrow ...

Page 41: ...e VS 44DT Remotely Using the Web Pages 8 4 EDID Page The EDID page allows you to Copy an EDID from The default EDID Any HDBaseT output Any input An EDID stored in a file Copy an EDID to one or more inputs Figure 16 EDID Page ...

Page 42: ...Web Pages 35 To copy an EDID to one or more inputs 1 Select the source you want to read from Default EDID in this example The source details appear on the EDID page 2 Select the input s to which you want to copy the EDID to Figure 17 Copying the EDID ...

Page 43: ...y Using the Web Pages 3 Click COPY The COPY EDID RESULTS lists the actions taken Figure 18 EDID Copied 8 5 RS 232 Routing Page The RS 232 Routing page allows you to route RS 232 data to Out 1 Out 2 Out 3 or Out 4 Figure 19 RS 232 Routing Page ...

Page 44: ...eb Pages 37 8 6 Audio Settings Page The Audio Settings page allows you to Set the volume of the audio output or mute it Select the audio signal from one of the four HDBT outputs to be routed to the unbalanced stereo output Figure 20 Audio Settings Page ...

Page 45: ...Using the Web Pages 8 7 Switching Timeout Page The switching timeout page allows you to Delay the switching upon signal loss 5V is on Delay the switching upon unplugging the cable Delay 5V of when signal is lost Figure 21 Switching Timeout Page ...

Page 46: ...VS 44DT Operating the VS 44DT Remotely Using the Web Pages 39 8 8 About Page The About page displays the device firmware revision and the Kramer company details Figure 22 About Page ...

Page 47: ... VS 44DT while holding down the OFF button 6 After a few seconds a removable drive is displayed in your Windows Explorer Release the OFF button 7 Copy the firmware file from your PC to the new removable drive 8 After the file has been transferred power cycle the VS 44DT As soon as the VS 44DT is ready for operation the upgrade process is complete To upgrade the I O microcontroller firmware 1 Go to...

Page 48: ...he Firmware 41 6 Copy the firmware file from your PC to the new removable drive 7 After the file has been transferred power cycle the VS 44DT As soon as the VS 44DT is ready for operation the upgrade process is complete ...

Page 49: ...ic channel Supported Resolutions Up to 4K 60Hz 4 2 0 HDMI Range 15m 49ft 8bit resolution 10m 33ft 12 bit resolution HDBaseT Range 100m 328ft 4K 30Hz 180m 590ft 1080 60Hz 24bpp Power Consumption 100 240V AC 50 60Hz 38VA Operating Temperature 0 to 40 C 32 to 104 F Storage Temperature 40 to 70 C 40 to 158 F Humidity 10 to 90 RHL non condensing Dimensions 19 x 13 72 x 1U W D H rack mountable Shipping ...

Page 50: ... IP Address 192 168 1 39 Subnet Mask 255 255 0 0 Default Gateway 192 168 0 1 TCP Port 5000 Default UDP Port 50000 Maximum TCP Ports 4 Maximum UDP Ports 10 Full Factory Reset Menu Menu RESET TO DEFAULT Change the option to YES and press Enter to complete the reset process you need to turn the power off and then on again Web Page Go to the Device Settings page and click FACTORY RESET Protocol 3000 f...

Page 51: ...g to how you interface with the VS 44DT For example a basic video input switching command that routes a layer 1 video signal to HDMI out 1 from HDMI input 2 ROUTE 1 1 2 is entered as follows Terminal communication software such as Hercules The framing of the command varies according to the terminal communication software K Touch Builder Kramer software ...

Page 52: ...roller s documentation For more information about Using Protocol 3000 commands see Section 11 1 General syntax used for Protocol 3000 commands see Section 11 2 Protocol 3000 commands available for the VS 44DT see Section 11 3 11 1 Understanding Protocol 3000 Protocol 3000 commands are structured according to the following Command A sequence of ASCII letters A Z a z and A command and its parameters...

Page 53: ...ed in the same string Each command is delimited by a pipe character When chaining commands enter the message starting character and the message closing character only at the beginning and end of the string Spaces between parameters or command terms are ignored Commands in the string do not execute until the closing character is entered A separate response is sent for every command in the chain 11 ...

Page 54: ... Command_2 Parameter2_1 Parameter2_2 Command_3 Parameter3_1 Parameter3_2 CR Device Message Format Start Address optional Body Delimiter Device_id Message CR LF Device Long Response Echoing command Start Address optional Body Delimiter Device_id Command SP Param1 Param2 result CR LF 11 3 Protocol 3000 Commands This section includes the following commands System Commands see Section 11 4 1 Video Com...

Page 55: ... Reset device VERSION Get device firmware version AV SW TIMEOUT Set get auto switching timeout DISPLAY Get output HPD status SIGNAL Get input signal lock status PRST RCL Recall saved preset list PRST STO Store current connections volumes and modes in preset LOCK FP Lock the port MACH NUM Set machine number 11 4 1 1 Functions Permission Transparency Set End User Public Get Description Syntax Set Pr...

Page 56: ...me Format hh mm ss where hh hours mm minutes ss seconds K Config Example BUILD DATE 0x0D 11 4 1 3 FACTORY Functions Permission Transparency Set FACTORY End User Public Get Description Syntax Set Reset device to factory default configuration FACTORYCR Get Response nn FACTORYSPOKCR LF Notes This command deletes all user data from the device The deletion can take some time Your device may require pow...

Page 57: ...NAME name of a specific command Notes To get help for a specific command use HELPSPCOMMAND_NAMECR LF K Config Example HELP 0x0D 11 4 1 5 MODEL Functions Permission Transparency Set Get MODEL End User Public Description Syntax Set Get Get device model MODEL CR Response nn MODELSPmodel_nameCR LF Parameters model_name String of up to 19 printable ASCII chars Notes This command identifies equipment co...

Page 58: ...x Set Reset device RESETCR Get Response nn RESETSPOKCR LF Notes To avoid locking the port due to a USB bug in Windows disconnect USB connections immediately after running this command If the port was locked disconnect and reconnect the cable to reopen the port K Config Example RESET 0x0D 11 4 1 8 VERSION Functions Permission Transparency Set Get VERSION End User Public Description Syntax Set Get G...

Page 59: ...ideo signal loss timeout to 6 seconds AV SW TIMEOUT 0 6 0x0D 11 4 1 10 DISPLAY Functions Permission Transparency Set Get DISPLAY End User Public Description Syntax Set Get Get output HPD status DISPLAY SPout_idCR Response nn DISPLAYSPout_id statusCR LF Parameters out_id Out 1 1 Out 2 2 Out 3 3 Out 4 4 status HPD status according to signal validation 0 Off 1 On 2 On and all parameters are stable an...

Page 60: ...ggers After execution a response is sent to the com port from which the Get was received A response is sent after every change in input signal status from On to Off or from Off to On K Config Example Get the input signal status of HDMI In SIGNAL 1 0x0D 11 4 1 12 PRST RCL Functions Permission Transparency Set PRST RCL End User Public Get Description Syntax Set Recall saved preset list PRST RCLSPpre...

Page 61: ...umber IN 1 1 IN 2 2 IN 3 3 IN 4 4 K Config Example Store preset 1 PRST STO 1 0x0D 11 4 1 14 LOCK FP Functions Permission Transparency Set LOCK FP End User Public Get LOCK FP End User Public Description Syntax Set Lock front panel LOCK FPSPlock_modeCR Get Get front panel lock state LOCK FP Response nn LOCK FPSPlock_modeSPOKCR LF Parameters lock_mode unlock the front panel buttons Off 0 lock the fro...

Page 62: ...ideo switch state 11 4 2 1 VMUTE Functions Permission Transparency Set VMUTE End User Public Get VMUTE End User Public Description Syntax Set Set enable disable video on output VMUTESPoutput_id flagCR Get Get video on output status VMUTE SPoutput_idCR Response nn VMUTESPoutput_idCR Parameters output_id the number of outputs OUT 1 1 OUT 2 2 OUT 3 3 OUT 4 4 flag disable video on output 0 enable vide...

Page 63: ...itmap representing destination IDs Format XXXX X where X is hex digit The binary form of every hex digit represents corresponding destinations Setting 1 indicates that EDID data is copied to this destination Setting 0 indicates that EDID data is not copied to this destination Response Triggers Response is sent to the com port from which the Set was received before execution Notes Destination bitma...

Page 64: ... Response nn MUTESPchannel mute_modeCR Parameters channel OUT 1 mute_mode mute mode off 0 mute mode on 1 K Config Example Mute the audio MUTE 1 1 0x0D 11 4 4 1 VOLUME Functions Permission Transparency Set VOLUME End user Get VOLUME End User public Description Syntax Set Set simple audio volume VOLUMESPP1 P2CR Get Get simple audio volume VOLUME SPP1CR Response nn VOLUMESPP1 P2CR LF Parameters P1 Ou...

Page 65: ... number or for all outputs OUT 1 1 OUT 2 2 OUT 3 3 OUT 4 4 K Config Example Switch IN 1 to OUT 3 VID 1 3 0x0D 11 4 5 2 ROUTE Functions Permission Transparency Set ROUTE End User Get ROUTE End User Switching Description Syntax Set Set layer routing ROUTESPLayer dest srcCR Get Get layer routing ROUTE SPlayer destCR Response nn ROUTESPP1 P2 P3CR LF Parameters layer Layer number Video 1 Audio 2 Data 3...

Page 66: ...ministrator Public Get ETH PORT End User Public Description Syntax Set Set Ethernet port protocol ETH PORTSPportType ETHPortCR Get Get Ethernet port protocol ETH PORT SPportTypeCR Response nn ETH PORTSPportType ETHPortCR LF Parameters portType TCP 0 UDP 1 ETHPort TCP UDP port number 0 65565 Notes If the port number you enter is already in use an error is returned The port number must be within the...

Page 67: ...e NAME command You can also get an assigned IP by direct connection to USB or RS 232 protocol port if available Consult your network administrator for correct settings K Config Example Enable DHCP mode if available NET DHCP 1 0x0D 11 4 6 3 NET GATE Functions Permission Transparency Set NET GATE Administrator Public Get NET GATE End User Public Description Syntax Set Set gateway IP NET GATESPip_add...

Page 68: ... address in the following format xxx xxx xxx xxx Notes Consult your network administrator for correct settings K Config Example Set the IP address to 192 168 1 39 NET IP 192 168 001 039 0x0D 11 4 6 5 NET MAC Functions Permission Transparency Set Get NET MAC End User Public Description Syntax Set Get Get MAC address NET MAC CR Response nn NET MACSPmac_addressCR LF Parameters mac_address unique MAC ...

Page 69: ...ubnet mask NET MASKSPnet_maskCR Get Get subnet mask NET MASK CR Response nn NET MASKSPnet_maskCR LF Parameters net_mask format xxx xxx xxx xxx Response Triggers The subnet mask limits the Ethernet connection within the local network Consult your network administrator for correct settings K Config Example Set the subnet mask to 255 255 0 0 NET MASK 255 255 000 000 0x0D ...

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Page 71: ...ore opening andservicing For the latest information on our products and a list of Kramer distributors visit our web site to find updates to this user manual We welcome your questions comments and feedback www KramerAV com info kramerel com P N 2900 300470 Rev 1 ...

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