Your VS-121HC Switcher / Transcoder Installing the VS-121HC in a Rack Connecting the VS-121HC Switcher/Transcoder Operating the VS-121HC Switcher/Transcoder Operating Using the Front Panel Buttons Connecting to the VS-121HC via the RS-232 Port 7.2.1 Connecting the RS-232 Port Operating via the RS-485 Port 7.3.1 Setting the Machine number 7.3.2...
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Contents Figures Figure 1: VS-121HC 12 x 1 Component Video Switcher / Transcoder Figure 2: Connecting the VS-121HC Switcher / Transcoder Figure 3: Crossed Cable RS-232 Connection Figure 4: Straight Cable RS-232 Connection with a Null Modem Adapter Figure 5: Master/Slave Configuration...
Our 1,000-plus different models now appear in 11 groups that are clearly defined by function. Thank you for purchasing the Kramer VS-121HC 12 x 1 Component Video Switcher / Transcoder. This product is ideal for the following typical applications: •...
• The VS-121HC can operate in tandem with the VS-121HCA The VS-121HC can be operated using the front panel buttons, or remotely via: • RS-232 and RS-485 serial commands transmitted by PC, a touch screen system, or other serial controller •...
2 Turn the machine OFF, then turn the machine ON while pressing the FACTORY RESET button. The unit powers up and loads its memory with the factory default definitions 3 Optional. Can be used instead of the front panel (built-in) IR receiver to remotely control the VS-121HC (only if the internal IR connection cable has been installed)
Installing the VS-121HC in a Rack Installing the VS-121HC in a Rack This section provides instructions for rack mounting the unit. KRAMER: SIMPLE CREATIVE TECHNOLOGY...
Ethernet ports (see section 7) and/or an IR remote transmitter (see section 7.5). 1 Switch OFF the power on each device before connecting it to your VS-121HC. After connecting your VS-121HC, switch on its power and then switch on the power on each device...
This section also describes: • How to set the DIP-switches (see section 7.6) • How to operate the VS-121HC in tandem with the VS-121HCA (section 7.7) 1 Refer to the separate user manual. Download it from our Web site at http://www.kramerelectronics.com...
To connect to the VS-121HC via RS-232, connect the RS-232 9-pin D-sub rear panel port on the VS-121HC unit via a 9-wire straight cable (pin 2 to pin 2, pin 3 to pin 3, pin 5 to pin 5) to the RS-232 9-pin D-sub port on your...
Figure 4: Straight Cable RS-232 Connection with a Null Modem Adapter Operating via the RS-485 Port You can operate the VS-121HC via the RS-485 port from a distance of up to 1200 meters (3900ft) using any device equipped with an RS-485 port (for example, a PC).
For the VS-121HC units located at the ends of the RS-485 line (whether master or slave), set DIP 8 ON • For all other VS-121HC units in the middle of the line, set DIP 8 OFF Figure 5: Master/Slave Configuration...
(see section 7.4.2) for connection via a network hub or network router. 7.4.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable) You can connect the Ethernet port of the VS-121HC to the Ethernet port on your PC, via a crossover cable with RJ-45 connectors.
Figure 7: Internet Protocol (TCP/IP) Properties Window 7.4.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through Cable) You can connect the Ethernet port of the VS-121HC to the Ethernet port on a network hub or network router, via a straight-through cable with RJ-45 connectors.
This distance can be extended to up to 60 meters when used with three extension cables Before using the external IR receiver, be sure to arrange for your Kramer dealer to insert an internal IR connection cable , which is required so that 1 6 F the REMOTE IR 3.5mm connector can be used.
OFF ON 16 (Slave) When connecting more than one VS-121HC unit, set a different Machine # on each unit. You do not have to number the units in the order in which they connect to the PC, but each unit must be assigned a unique machine number.
The VS-121HC can operate in tandem with the Kramer VS-121HCA 12x1 Stereo Audio – S/PDIF Switcher. Once the units are connected, you can operate the system via the front panel buttons of the VS-121HC or via the RS-232 or the Ethernet ports of the VS-121HC.
To connect a PC to the RS-232 port of the VS-121HC: 1. Power the VS-121HC OFF. 2. Connect a serial cable from the VS-121HC RS-232 DB9 rear panel port to a PC as explained in section 7.2.1. 3. On the rear panel of the device, press the FLASH PROG switch inward...
Upgrading the VS-121HC Firmware 4. Power the VS-121HC ON. Note: This sequence is critical – first operate the FLASH PROG switch and then power on the unit 9.1.3 Installing the Device Firmware To install the firmware, perform the following steps: 1.
Upgrading the VS-121HC Firmware Figure 11: Atmel – Flip Window 3. Open the Device Selection window by: pressing the keyboard shortcut key F2, or choosing the Select command from the Device menu, or pressing the integrated circuit icon in the upper right corner of the window).
Upgrading the VS-121HC Firmware 7. The Open File window opens. Select the correct HEX file that contains the upgraded version of the VS-121HC firmware (for example, PL3_V1p2.hex) and click Open. 8. Open the RS-232 window by pressing the keyboard shortcut key F3 (or select the Communication / RS232 command from the Settings menu, or press the keys: Alt-SCR).
12. Close the Atmel – Flip window. 13. Power OFF the VS-121HC. 14. If required, disconnect the null-modem adapter from the VS-121HC. 15. Press the FLASH PROG button on the front panel of the VS-121HC outward to its original position (see Figure 16.
To connect a PC to the RS-232 port of the VS-121HC: 1. Power the VS-121HC OFF. 2. Connect a serial cable from the VS-121HC RS-232 9-pin D-sub rear panel port to a PC as explained in section 7.2.1. 3. On the back panel of the device press the ETH PROG switch inward...
4. Press the Send button to download the file. The Send button lights red. 5. Wait until the download is complete and the red Send button turns off. 6. Power OFF the VS-121HC. 7. Press the ETH PROG button on the front panel of the VS-121HC outward to its original position (see Figure 8.
Kramer Protocol 2000 Kramer Protocol 2000 VS-121HC is compatible with Kramer’s Protocol 2000 (version 0.50) (below). This RS-232/RS-485 communication protocol uses four bytes of information as defined below. For RS-232, a null-modem connection between the machine and controller is used. The default data rate is 9600 baud, with no parity, 8 data bits and 1 stop bit.
NOTE 13 – This is a request to identify the switcher/s in the system. If the OUTPUT is set as 0, and the INPUT is set as 1, the machine will send its name. The reply is the decimal value of the INPUT and OUTPUT. For example, for a VS-121HC, the reply to the request to send the audio machine name would be (HEX codes): 81 (i.e.
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In order to return to working with REPLY, this instruction must be sent with OUTPUT defined ON. In cases where there is hardware control of the REPLY, (e.g. a DIP-switch to disable replying), this instruction is only valid when the hardware REPLY is set ON. KRAMER: SIMPLE CREATIVE TECHNOLOGY...
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EXCLUSION OF DAMAGES The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall not be liable for: 1. Damage to other property caused by defects in this product, damages based upon inconvenience, loss of use of the product, loss of time, commercial loss;...
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For the latest information on our products and a list of Kramer distributors, visit our Web site: www.kramerelectronics.com, where updates to this user manual may be found. We welcome your questions, comments and feedback. Safety Warning: Disconnect the unit from the power supply before opening/servicing.
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