BENTLY 3500/16通道继电器模块
•前面板“生命体征”指示灯（电源、Ultra IDE硬盘驱动器活动、VMEbus SYSFAIL和以太网状态）•三个通用可编程16位定时器•软件控制看门狗定时器•辅助IDE上多达192 Mbyte的可启动闪存•32 Kbyte的非易失性SRAM•PMC VMIVME-7740支持标准PC/AT I/O功能，如表1-1所列。第25页上的图1-1显示了VMIVME-7740的框图，强调了包括PCI到VMEbus桥接器在内的I/O功能。两个串行端口（16550兼容RS-232C）COM1 COM2前面板，双Micro-D 9针AT型键盘/鼠标控制器，带有PS/2型适配器M/K前面板PS/2型连接器，迷你DIN圆形（母）适配器“Y”电缆提供的超级VGA视频控制器，带有4 Mbyte SGRAM SVGA前面板DB15HD高密度（母）双以太网、10BaseT、100BaseTx、Novell NE-2000兼容LAN1 LAN2前面板RJ45
• Front panel “vital sign” indicators (power, Ultra-IDE hard drive activity, VMEbus SYSFAIL, and Ethernet status) • Three general-purpose programmable 16-bit timers • Software-controlled Watchdog Timer • Up to 192 Mbyte of bootable flash on secondary IDE • 32 Kbyte of non-volatile SRAM • PMC The VMIVME-7740 supports standard PC/AT I/O features such as those listed in Table 1-1. Figure 1-1 on page 25 shows a block diagram of the VMIVME-7740 emphasizing the I/O features including the PCI-to-VMEbus bridge.Two Serial Ports (16550-Compatible RS-232C) COM1 COM2 Front Panel, Dual Micro-D 9-Pin AT-Style Keyboard/Mouse Controller with a PS/2-Style Adapter M/K Front Panel PS/2-Style Connector, Mini-DIN Circular (female) Adapter “Y” Cable Supplied Super VGA Video Controller with 4 Mbyte SGRAM SVGA Front Panel DB15HD High Density (female) Dual Ethernet, 10BaseT, 100BaseTx, Novell NE-2000 Compatible LAN1 LAN2 Front Panel RJ45
