Specifications

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EPC-30 Hardware Reference
Page 47
The following modifications must be performed to operate the board at 3.3V:
1. The CPU needs to be replaced with a 3.3V processor.
2. The regulator and components to be installed.
3. The zero-ohm resistors connecting 3.3V to VCC need to be removed.
4. The DRAM SIMM installed must be operable at 3.3V.
5. The 74ABT16245 buffers in the IDE interface need to be replaced with
5V-safe, 3.3V parts, such as 74LVT16245s.
6. A resistor needs to be removed and one installed to set the RFA part for
3.3V operation.
Mechanical specifications
Mechanically, the EPC-30 is a 7.2” long x 4.8” high ISA card.
Mounting holes are positioned on the PCB to allow for mounting of the
EPC-30. Refer to Figure 2-1 in Chapter 2 for more information.
The EPC-30 meets the PC/104 specification for the mounting of topside-
mounted PC/104 cards.
A complete mechanical drawing of the board with detailed dimensions and
the positions of connectors and mounting holes is available.
The EPC-30 is designed to meet the standard RadiSys environmental
specifications. This includes operation at temperatures from 0 to +60
degrees C. EPC-30 meets this specification in still air, with no forced cooling
required.