VAXstation 3200/3500

VAXstation 3200/3500
Summary
Announcement date:	10 January 1989
Codename:	Mayfair/GP
CPU Details
CPU technology:	CMOS
Cache:	1KB (on chip), 64KB (external secondary)
I/O
Q-bus:	Q22
Performance
VUPs:	2.8

The VAXstation 3200 and 3500 are members of the second generation of VAX workstations; they differ only in their enclosure, the size of their backplanes (and thus in the number of slots available), and in the peripherals that come pre-packaged in them.

Both are built around a QBUS, used only for the I/O bus; they use a special bus carried on over the back connectors as well as the CD interconnect for their main memory bus. (The address space of the QBUS was limited to 4MB, and the data section is only 16 bits wide.) Both the 3200 and the 3500 use the KA650-B CPU.

Commonalities and differences of both types of workstations are listed in the following table:

Component	VAXstation 3200	VAXstation 3500
Enclosure	BA23 (8 QBUS Slots)	BA213 (12 QBUS Slots)
CPU	KA650-B
Memory	MS650 (8 MB)	MS650 (16 MB)
Video Controller	VCB01 (Mono) / VCB02 (Color)
Disk Controller	RQDX3	KDA50
Disk	RD54	RA70
Tape Controller	TQK50	TQK70
Tape	TK50	TK70
Network Adapter	DELQA

External links

• VAXstation 3200 Owner's Manual, BA23 Enclosure (EK-154AA-OW-001)