User manual

21 Chapter 2
2.7 USB Ports
The UNO-4672 provides four USB interface connectors, which provide
complete Plug & Play and hot swapping for up to 127 external devices.
The USB interface complies with USB UHCI, Rev. 2.0 compliant. The
USB interface can be disabled in the system BIOS setup.
UNO-4672 provides 1 USB port on the front panel, and 2 USB port on
the rear panel. It also provides 1 USB port inside the chassis for USB
dongle key.
2.8 VGA Display
The UNO-4672 provides a VGA controller (Intel 852 GME, supports a
single 1.5V accelerated graphics port interface) for a high resolution
VGA interface. CRT Mode: 1280 x 1024 @ 32bpp (60Hz), 1024 x 768 @
32bpp (85Hz); LCD/Simultaneous Modes: 1280 x 1024 @ 16bpp(60Hz),
1024 x 768 @16bpp(60Hz) and up to 32 MB shared memory.
2.9 Battery Backup SRAM
UNO-4672 provides 512 KB of battery backup SRAM. This ensures that
you have a safe place to store critical data. You can now write software
applications without being concerned that system crashes will erase criti-
cal data from the memory.
There is a BTR LED in the front panel of the UNO-4672, please replace
the lithium battery with a new one if the BTR LED is activated.