User`s manual

DIGITAL-LOGIC AG MSLB-P5 Manual V0.3
PRELIMINARY 31
4.1 Zone A: Memory Expansion
Most EBX boards will require expansion memory, and this zone is recommended to allow the
height profile necessary for industry standard SIMMs or DIMMs.
4.2 Zone B: Power Connector
The 7-pin EBX power connector and external mating connector are located in this zone. Refer to
Section 5 of this specification for further information.
4.3 Zone C: Video I/O (Option)
Many EBX boards will provide onboard interface to CRT and/or flat panel displays. It is
recommended that the I/O connectors for external display devices be located within this zone.
Both the EBX board connectors and the typical mating cable connectors must fit within the
defined height profile.
4.4 Zone D: Miscellaneous Primary Side Components
Any primary side components within this zone must fit within the defined height profile.
4.5 Zone E: General Purpose I/O, Tall Region
This zone is defined for I/O expansion interfaces for functions such as IDE, floppy, SCSI,
keyboard, mouse, serial ports, parallel ports, etc. Both the EBX board connectors and the typical
mating cable connectors must fit within the defined height profile.
4.6 Zone F: PC/104- Plus Expansion Stack Location
This zone is for the onboard PC/104-Plus expansion stack. For the required height profile within
this zone, refer to Figure 4 (Module Dimensions) of the PC/104-Plus specification.
4.7 Zone G: PC/104-Plus I/O Areas
The two areas marked “G” correspond to the I/O connector areas of the PC/104 and PC/104-Plus
module specifications. Components on the EBX board must not be too tall to fit beneath the I/O
connectors of the PC/104 (Plus) module and must therefore conform to the height profile defined
for this zone. Note that the PC/104 (Plus) module I/O connectors and mating cable connectors
are expected to fit entirely within the two sets of horizontal boundaries indicated by “G” in
Figures 2 and 3 of Appendix A.
4.8 Zone H: Tall CPU (Option)
CPUs requiring a tall heatsink or fan attachment are recommended to be located in this zone, as
defined in Figure 2. The defined height profile for this zone includes the CPU and its associated
heatsink assembly. In this case, use of PC Cards will require a PC/104 or PC/104-Plus
expansion module or other external adapter.
4.9 Zone I: PC Card Slot (Option)
If an onboard PC Card expansion slot is used, its location should be as defined in Figure 3. When
fully inserted, the external edge of the PC Card is flush with the outside edge of the EBX board
as indicated in Figure 3; the location of the center of the card is also indicated in Figure 3. Figure
1 indicates four holes marked “B” that correspond to the location of the screws used to mount a
specific PC Card connector, Berg part number 95547-XXX (or equivalent).
4.10 Zone J: General Purpose I/O, Low Profile Region
This zone is defined for I/O expansion interfaces for functions such as IDE, floppy, SCSI,
keyboard, mouse, serial ports, parallel ports, etc. Both the EBX board connectors and the typical
mating cable connectors must fit within the defined height profile.
4.11 Secondary Side Components
All components on the “secondary side” (bottom) of the EBX board, with the exception of the
PC/104-Plus module area, must fit within this dimension. If the “stackthrough bus” option is
employed, secondary side components in the PC/104-Plus module area must conform to the
secondary side component height requirements specified in the PC/104-Plus specification.
4.12 Board Thickness
This dimension specifies the thickness of the EBX PC board material.