Service manual

Bootblock
Block zero on the system disk; it contains the block number where the
virtual memory boot (VMB) program is located on the system disk and
contains a program that, with the boot primitive, reads VMB from the
system load device into memory.
CIBCA
VAXBI CI port interface; connects a system to a Star Coupler.
CIXCD
XMI CI port interface; connects a system to a Star Coupler.
Cold start
An attempt by the primary processor to boot a new copy of the operating
system.
Compact disk server
Ethernet-based CD server; provides access to CDROMs for software
installation, diagnostics, and on-line documentation.
Console communications area (CCA)
Segment of system main memory reserved by the console program.
Console mode
A mode of operation allowing a console terminal operator to communicate
with nodes on the XMI bus.
DEBNI
VAXBI adapter; Ethernet port interface.
DEMNA
XMI adapter; Ethernet port interface.
DHB32
VAXBI adapter communication device; supports up to 16 terminals.
DMB32
VAXBI adapter interface for 8-channel asynchronous communications for
terminals, one synchronous channel, and a parallel port for a line printer.
DRB32
VAXBI adapter; parallel port.
Glossary–2