BACK MAXIMUM PLANE CARDS VCs/CARD TOTAL TOTAL SYSTEM TYPE SUPPORTED <8.0 8.0 VCs(<8.0)* VCs (8.0)* 3xx DIO 4 32 32 128 128 4xx DIO 4 32 32 128 128 635 CIO 4 64 64 256 256 645 CIO 3 64 64 192 192 710 EISA 0 0 0 0 0 715 EISA 1 256 256 720 EISA 1 256 256 730 EISA 1 256 256 750 EISA 4 256 1024 807 NIO 2 256 512 808 NIO 2 64 256 128 512 815 NIO 4 64 256 256 1024 817 NIO 2 256 512 822 NIO 4 64 256 256 1024 825 CIO 4 64 64 256 256 827 NIO 6 256 1024 832 NIO 4 64 256 256 1024 835 CIO 4 64 64 256 256 837 NIO 2 256 512 840 CIO 5 64 64 320 320 842 NIO 5 64 256 320 1024 845 CIO 3 64 64 196 192 847 NIO 6 256 1024 850 CIO 7 64 64 448 448 852 NIO 7 64 256 448 1024 855 CIO 7 64 64 448 448 857 NIO 6 256 1024 860 CIO 7 64 64 448 448 865 CIO 7 64 64 448 448 867 NIO 7 256 1024 870 CIO 7 64 64 448 448 877 NIO 7 256 1024 890 NIO 12 256 1024 * Depending on the configuration, maximum number of VCs can be reduced by such parameters as packet size or window size. See appendix G in the X.25/9000 Installation and Administration Manual for details.