Service manual

DSB32
VAXBI adapter communication device; provides two synchronous lines.
DWMBB
The XMI-to-VAXBI adapter; a 2-module adapter that allows data transfer
from the XMI to the VAXBI; DWMBB/A is the module in the XMI card cage,
and DWMBB/B is the VAXBI module. Every VAXBI on a VAX 6000 series
system must have a <REFERENCE>(XBI) adapter.
Ethernet-based compact disk server
The RRD40 compact disk drive, a console load device, functions as a server
on the Ethernet.
FV64A
Vector processor; works in a scalar/vector processor pair.
Interleaving memory
See Memory interleaving.
KDB50
VAXBI adapter for RAxx disks; enables connection to disk drives.
KDM70
XMI adapter for RAxx disks; enables connection to disk drives.
Memory interleaving
Method to optimize memory access time; the VAX 6000 series console
program automatically interleaves the memories in the system unless the
SET MEMORY command is used to set a specific interleave or no interleave
(which would result in serial access to each memory module). Interleaving
causes a number of memories to operate in parallel.
Memory node
Also called the <REFERENCE>(XMA2). Memory is a global resource
equally accessible by all processors on the <REFERENCE>(XMI). See also
<REFERENCE>(XMA2).
Module
A single <REFERENCE>(XMI) or VAXBI card that is housed in a single
slot in its respective card cage. XMI modules (11.02" x 9.18") are larger
than VAXBI modules (8.0" x 9.18").
Glossary–3