1–12
Overview
1.4.10.2 LK250 Keyboard
The LK250 keyboard provides the standard Digital key
arrangement available in several country-specific language
variations.
1.4.11 Math Coprocessor
The optional math coprocessors listed in Table 1–3 plug into the
main logic board and allow each DECstation to process numeric
data faster.
Table 1–3
Math Coprocessors
Model
Number
Description
PC43P-AA
20 MHz Intel 80387 coprocessor for the DECstation
320
+
(also compatible with DECstation 320)
PC46P-AA
16 MHz Intel 80287 coprocessor for the DECstation
316
+
PC46P-BB
25 MHz Intel 80387 coprocessor for the DECstation
325
C
PC46P-CC
33 MHz Intel 80287 coprocessor for the DECstation
333
C
PC46P-EE
25 MHz WIETEK 4167 coprocessor for the DECstation
425
C
Summary of Contents for DECstation 316+
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Page 61: ...FRU Replacement 3 15 LJ 1718 Figure 3 6 DECstation 316 320 CPU Board...
Page 63: ...FRU Replacement 3 17 LJ 1791 Figure 3 7 DECstation 320 425C CPU Board...
Page 65: ...FRU Replacement 3 19 LJ 1719A Figure 3 9 The 0K Memory Adapter With foil backing...
Page 67: ...FRU Replacement 3 21 LJ 1588 Figure 3 10 SIMM Removal and Replacement...
Page 70: ...3 24 FRU Replacement LJ 1739A Figure 3 11 Removing the Rear Bezel...
Page 71: ...FRU Replacement 3 25 LJ 1738A Figure 3 12 Removing the Power Supply...
Page 73: ...FRU Replacement 3 27 LJ 1737A Figure 3 13 Fan Removal and Replacement...
Page 80: ...3 34 FRU Replacement LJ 1789 Figure 3 16 Rev C Main Logic Board Jumper Locations 316 325C 333C...
Page 83: ...FRU Replacement 3 37 LJ 1721 Figure 3 17 Rev D Main Logic Board Jumper Locations 320 425C...
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