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Upgrading the LINDY CPU Switch's firmware The LINDY CPU Switch Dual MP uses flash memory technology which enables the firmware code to be upgraded by the user. New keyboards, mice operating systems and drivers are being launched all the time. From time to time the LINDY CPU Switch's firmware will be updated to provide support for these new devices. You can take advantage of these upgrades free of charge during the warranty period. Upgrades are performed by connecting a PC's serial port to the LINDY CPU Switch's serial port and running an upgrade program on the PC. This upgrade program downloads the new firmware to the LINDY CPU Switch Dual MP and checks that the data has been programmed correctly. You can check the version of the firmware that is currently loaded into your LINDY CPU Switch using the on-screen menu. To do this activate the on-screen menu using the keyboard hotkeys (see section 4.10) and then press F1. The version number of the current firmware will then be displayed at the bottom of the Configuration Menu. To perform a firmware upgrade on your LINDY CPU Switch Dual MP you will need a suitable serial upgrade cable and an IBM PC compatible computer with an RS232 serial port and an operating system that supports DOS. Suitable upgrade cables with 9-pin serial connectors are provided with the LINDY CPU Switch Dual MP. If you have lost your cable then you will need to buy a cable with a 9-way D-type male connector on one end and a 9-way D-type female connector on the other end with all 9 lines connected "straight through" (i.e. pin 1 to pin 1, pin 2 to pin 2, pin 3 to pin 3 etc.). These are standard serial extension cables. You will also need to obtain the latest version of the LINDY CPU Switch Dual MP firmware which is available by request from LINDY. Note: The normal flash upgrade process does not clear the computer names, user names, security passwords or other configuration settings. LINDY CPU Switch Dual Multi-Platform Installation and Use Page 62 To perform a flash upgrade on the LINDY CPU Switch Dual MP: Step 1 - Prepare your computers Ensure that you have saved any important work on the connected computers. The LINDY CPU Switch Dual MP can be upgraded whilst attached to live systems but remember that the mouse connections will probably need to be reconstituted after the upgrade is finished (see sections 4.13 and 2.9). Where possible, mission critical servers should be switched off or disconnected before performing an upgrade. Step 2 - Connect your computer to the LINDY CPU Switch Dual MP Connect your computer's serial port (COM1 or COM2) to the LINDY CPU Switch Dual MP's serial port (see figure 2). You do not need to set the serial baud rate and protocol because the upgrade program will do this for you automatically (for reference, the RS232 baud rate used by the upgrade program is 19200 and the protocol is 8 bits, 1 stopbit and no parity). Step 3 - Select flash upgrade mode using option switch 2 (labelled UPGRADE) Move option switch 2 on the back of the LINDY CPU Switch Dual MP to the ON position (down). LINDY CPU Switch Dual Multi-Platform Installation and Use Page 63 Step 4 - Power off the LINDY CPU Switch Dual MP Remove the power from the Dual MP. Step 5 - Power on the LINDY CPU Switch with the UPGRADE switch ON Attach the power adapter to the LINDY CPU Switch whilst the UPGRADE switch is ON. The green USER display should now show a lower case 'u'. This indicates that the LINDY CPU Switch is ready to be upgraded. The display should now show: Step 6 - Run the upgrade program The latest version of the LINDY CPU Switch Dual MP firmware is available from LINDY . The upgrade files will be supplied to you as a group and consist of several files as explained below. These files should be downloaded to the same directory on your computer. 1) A universal upgrade program LYDMP.EXE 2) Binary code files for each of the processors within the LINDY CPU Switch (up to 3) e.g. M216A129.HEX M216B129.HEX M216C129.HEX These files use the following naming scheme. The first three numeric characters are the model type (e.g. 216 is an LINDY CPU Switch Dual MP model 32354 with 16 computer ports). The fifth character is the processor designation. The last three LINDY CPU Switch Dual Multi-Platform Installation and Use Page 64 characters represent the firmware release version (e.g. 129 equals version 1.29). 3) A data file that tells the upgrade program (LYDMP.EXE) which binary code files (HEX files) to download to the LINDY CPU Switch Dual MP and where to put each file. Theoretically this DAT file can be modified so that only certain processors are upgraded but do not do this unless specifically instructed by LINDY technical support. e.g. M216V129.DAT Like the hex files, the first three numeric digits represent the model number (e.g. 216 represents an LINDY CPU Switch Dual MP model 32354 with 16 computer ports). The next four digits represent the version number (e.g. V129 equals firmware version 1.29). To upgrade...

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