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AdderView DVI Installation and Use Page 36 The maximum DVI cable length that can be used from the PC to the AdderView DVI will vary from PC to PC depending upon the computer’s video card, but typically 5 metres is achievable at a resolution of 1280 x 1024 @ 60 Hz and 10 metres is achievable at a resolution of 1024 x 768 @ 60 Hz Keyboard and PS/2 mice - 6 pin mini-DIN male connector to 6 pin mini-DIN male connector with all lines connected straight through (1-1,2-2 etc.). For ‘interface powered’ operation without the optional power adapter the cables should be no longer than 5 metres (see section 2.4 for more details). For operation with the power adapter, cables should be no longer than 30 metres. RS232 serial mice - these require a special converter to connect the RS232 lines present on the AdderView DVI mouse ports to the RS232 port on a PC. Cables should be no longer than 30 metres. NOTE - There are several common wiring specifications for 6-pin mini-DIN to 9-pin serial adapters. If you have an adapter that has been supplied with a mouse it may have a completely different internal wiring to that shown above and may not be compatible with the AdderView AdderView DVI Installation and Use Page 37 Recommended cables: For convenience, and high video quality we recommend the following Adder PS/2 and DVI cables. The video cables are constructed to ensure that high video quality is maintained. These cables are available in various different lengths to suit your requirements. Please quote the following part codes when ordering from your supplier. Part Code Description VSC3 PS/2 PC to AdderView, 2 metres long VSC8 PS/2 PC to AdderView, 5 metres long VSA1 Serial to PS/2 mouse adapter VSCD1 DVI-D single-link cable, 2 meters long VSCD2 DVI-D single-link cable, 5 meters long A3. Options port pin assignments The 15 way D connector located on the back of the AdderView DVI (labelled OPTIONS / FLASH) provides connections for the remote control module and allows an external RS232 device to control the AdderView DVI. See section 3.6 for more details. Pin 9 = GND Pin 10 = TXD Pin 11 = RXD Other pins to be left unconnected AdderView DVI Installation and Use Page 38 A.4 Flash upgrade cable connection The cable connections shown below are to connect either COM1 or COM2 of a PC to the AdderView DVI to allow flash upgrades. A.5 RS232 synchronisation cable pin assignments The cable connections shown below are to connect two AdderView DVIs together for synchronised operation (see section 3.8) AdderView DVI Installation and Use Page 39 Appendix B. Problem Solving Problem: Noise on video display. Action: Use higher quality DVI video cables. Reduce graphics card resolution or refresh rate. Use a shorter DVI cable. Problem: Mouse does not move cursor on screen. Action: Ensure that the mouse and computer are both connected to AdderView DVI before power is connected and ensure that the AdderView DVI is powered on before the attached computer. Ensure that your software is configured to accept a Microsoft compatible mouse of the type that you have connected (PS/2 or RS232). If you move the mouse and the activity indicator (dot on 7 segment display) does not flash then the AdderView DVI is not receiving data from the mouse. Check the mouse connection to the AdderView DVI, try resetting the mouse using the reset function (section 2.10) or re-powering the AdderView DVI. If you are attempting to connect the AdderView DVI to a CPU with a PS/2 mouse connection that has not been powered down then you will need to use the mouse restoration functions F5 or F6 (see section 2.11). Problem: Keyboard does not function or functions intermittently. Num lock light does not always come on when the num lock key is pressed. Action: Some older keyboards were designed for use with specific computers and are not truly AT or PS/2 compatible. These are not common but if you experience problems try another keyboard. Problem: Mouse causes channel to change. Action: Some cheaper mice are not fully compatible with the AdderView DVI and can lose data causing the channel to be changed (if mouse switching of channels is enabled). If you experience this problem then change the mouse and use a Microsoft, Logitech, IBM, Compaq or Hewlett-Packard type. Ensure that you are using a Microsoft compatible mouse driver on your PC. Some other manufacturers’ drivers may switch the mouse to use a proprietary mouse data format not supported by the AdderView DVI. If you have unplugged and re-connected a mouse to the AdderView DVI then ensure that you reset it using the mouse reset function (see section 2.10). Problem: Mouse jumps around the screen after disconnecting the mouse cable or powering down the AdderView DVI. Action: If you have disconnected and re-connected a CPU mouse cable or you have powered down the AdderView DVI then the mouse data format may be out of synchronisation with that required by the PC (PS/2 or Intellimouse). Try the ‘restore Intellimouse’ function (F6) to re...