Onboard Subsystems 2-1
2. ONBOARD SUBSYSTEMS
The TEK-AT4L
PLUS
provides the following features:
• PC/AT bus or stand alone operation
• 486SX/25MHz
486DX/33MHz
486DX2/66MHz
486DX4/100MHz
5x86/133MHz
• 1 to 64MB of system memory with DRAM
support
• Up to 8MB of user Flash EPROM
• Up to 2MB user SRAM with battery backup
• Supports Shadow RAM BIOS for fast
execution
• Flash EPROM boot
• Real-time clock with battery backup
• AT keyboard and speaker port
• One parallel printer port (LPT1)
• Two serial ports with COM2 as
RS-232 or RS-485
• Watchdog Timer
• Power Fail Detector
• Low Battery Circuit Detector
• Onboard floppy controller:
drives two floppies
• Onboard IDE hard disk interface
• Sleep Mode support
• CMOS technology for low power
• Two years warranty
• Supports Teknor mezzanine boards
The TEK-AT4L
PLUS
single board computer is a versatile board that will function either
on a passive backplane or as a stand-alone controller, with or without disks, keyboard and
monitor.
2.1 Passive Backplane
The TEK-AT4L
PLUS
can be installed on a PC/AT passive backplane in conjunction with
any PC/AT and XT compatible cards. Power is drawn directly from the PC Bus, and is
provided by the backplane. Video cards may be used but are not a prerequisite for
operation.
2.2 User Interface
The TEK-AT4L
PLUS
will operate with any PC Bus compatible display card. When stand-
alone mode is required, a TEKNOR Mezzanine SVGA card may be used.
A VT100 terminal (or a PC emulating VT100) may be used as an inexpensive alternative
to a display and keyboard. Refer to Section 5,
Using VT100 Mode
for more details on this
mode.
Summary of Contents for TEK-AT4L Plus
Page 7: ...PRODUCT DESCRIPTION 1 PRODUCT OVERVIEW 2 ONBOARD SUBSYSTEMS...
Page 9: ...Product Overview 1 2 TEK AT4LPLUS Block Diagram...
Page 26: ...Installing Devices 6 3 CONNECTOR LOCATION...
Page 35: ...Setting Jumpers 8 3 JUMPER LOCATIONS...
Page 36: ...Setting Jumpers 8 5 TABLE 8 1 Jumper Settings W1 W11...
Page 37: ...Setting Jumpers 8 6 TABLE 8 2 Jumper Settings W12 W19 W26...
Page 38: ...Setting Jumpers 8 7 TABLE 8 3 Jumper Settings W20 W25 SW1 SW2...
Page 41: ...APPENDICES A PRODUCT SPECIFICATIONS B BOARD DIAGRAMS C CONNECTOR PINOUTS...
Page 43: ...Board Diagrams B 1 B 1 TEK AT4LPLUS Assembly Diagram Top View...
Page 44: ...Board Diagrams B 3 B 2 TEK AT4LPLUS Mounting Holes...
Page 45: ...Board Diagrams B 5 B 3 TEK AT4LPLUS Mechanical Specifications...
