AT&T 3B2/300 Technical Reference Manual page 45

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Domestic 392/310 Computer Cabinet (ED-4C645-30)
Major Assemblies
Figure 2-3 shows a typical domestic 3B2/310 computer. The major assemblies include the
following:
• Power Supply Unit (TRW #095-10011-XXl or TRW #095-10060-00) set for 115 volt AC operation
• One Floppy Disk Drive, KS-23114,L4
• One Hard Disk Drive:
o 30-megabyte, KS-23054,Ll
o 72-megabyte, KS-23054,L2.
• System Board ED-4C637-30,G3 [without Math Acceleration Unit (MAU)] or
ED-4C637-30,G4 (with MAU)
• CM193A/B Backplane and card cage
• Memory card(s)
• Auxiliary Disk Interface, ED-4C632-30
• DUART Connector-2 Interface, ED-4C492-35,G5 and GSA
• Backup battery.
EQUIPMENT DESCRIPTION 2-21