Digital Equipment AXPpci 33, Руководство по конструкции

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Physical Description
2.3.2 Physical Mounting
SIMM modules are inserted into edge connectors on the MLB and held
in place with metal locking clips. Refer to Appendix D for installation
instructions.
Table 2–27 lists SIMM options and associated dimensions available from
Digital.
Table 2–27 SIMM Options
Digital Option Number Dimension ‘‘X’’ Dimension ‘‘Y’’
EBPXM–AA 1.000 inches 4.250 inches
EBPXM–AB 1.250 inches 4.250 inches
EBPXM–AC 1.350 inches 4.250 inches
EBPXM–AD 1.350 inches 4.250 inches
EBPXM–AE/AF 1.900 inches 4.550 inches
2.4 ISA Option Modules
Figure 2–13 shows a typical ISA option module; it is for reference only.
Note that the PCB is fastened to the opposite edge of the bulkhead bracket
than for a PCI option. Thus, the PCI option components in PCI slot 3
(J25) occupy the same space that the ISA option in ISA slot 1 (J24) would
occupy, making the slots mutually exclusive.
Figure 2–13 Typical ISA Option Module
MR-6404-AI
Table 2–28 lists the variable lengths for ISA options given other MLB
physical limits.
2–25