Technical Specifications
Introduction – 2 EPM-4 Reference Manual
Technical SpecificationsSpecifications are typical at 25°C with 5.0V supply unless otherwise noted.
Board Size:
3.55" x 3.775" (PC/104 standard).
Storage Temperature:
–40° C to 85° C
Operating Temperature:
EPM-4c, g 0° C to +60° C (100 FPM airflow)
EPM-4e, h -40° C to +85° C (free air, extended temperature versions)
Power Requirements: (with keyboard, mouse, and hard drive running DOS)
EPM-4c, g 133 MHz +5V ±5% @ 0.94A
EPM-4e, h 100 MHz +5V ±5% @ 0.84A, extended temperature versions
+3.3V or ±12V may be required by some expansion modules
System Reset:
Vcc sensing, resets below 4.70V typ.
Watchdog timeout
BBSRAM Interface:
2 MB option mapped into high memory
IDE Interface:
Industry standard 2mm 44-pin non-latching style, CompactFlash socket.
LPT/Floppy Interface:
Supports one floppy drive or parallel port.
Ethernet Interface:
Autodetect 10BaseT/100BaseTX based on Intel 82551ER. 12K transmit/receive buffer.
COM1 and COM2 Interface:
RS-232, 16C550 compatible, 115K baud max.
COM3 and COM4 Interface:
RS-422/485, 16C550 compatible, 460K baud max.
Connectors:
Utility: 2mm 50-pin shrouded
IDE: 2mm 44-pin
Floppy/LPT: 2mm 20-pin shrouded
Ethernet: RJ45
Power: 0.1” 10-pin
CompactFlash Type II socket
BIOS: General Software embedded BIOS with OEM enhancements
Field upgradeable with Flash BIOS Upgrade Utility
Bus Speed:
PCI, PC/104-Plus: 33 MHz, Revision 2.0
PC/104: 8 MHz, Revision 2.5
Compatibility:
PC/104 – Fully functional with most PC/104 devices. See the Expansion Bus section for details.
Embedded-PCI (PC/104-Plus) – Full compliance, 3.3V or 5V modules
RoHS: EPM-4g, h – Full compliance
Weight: EPM-4c, g – 0.117 kg (0.275 lbs)
EPM-4e, h – 0.116 kg (0.255 lbs)