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IBM 6400 Series Maintenance Manual

IBM 6400 Series
428 pages
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358
Abbreviations and Signal Mnemonics
BSY Busy
. . . . . . . . . . . . . . . . .
BTU British Thermal Unit.
. . . . . . . . . . . . . . . .
BUD Buffered Upper Driver.
. . . . . . . . . . . . . . .
CA Cathode
. . . . . . . . . . . . . . . . . .
CC Card Cage.
. . . . . . . . . . . . . . . . .
CCF Card Cage Fan.
. . . . . . . . . . . . . . .
CE Customer Engineer.
. . . . . . . . . . . . . . . . .
CHNG Change
. . . . . . . . . . . . . . .
CIR Circuit
. . . . . . . . . . . . . . . . .
CLK Clock
. . . . . . . . . . . . . . . . .
CO Cover Open.
. . . . . . . . . . . . . . . . .
COLL Collector
. . . . . . . . . . . . . . .
COMM Communication
. . . . . . . . . . . . . .
CONTLR Controller
. . . . . . . . . . . .
CMD Command
. . . . . . . . . . . . . . . .
CMX Manufacturer’s designation of the controller board.
. . . . . . . . . . . . . . .
CNC Connector, Connection.
. . . . . . . . . . . . . . .
CPI Characters Per Inch.
. . . . . . . . . . . . . . . .
CR Carriage Return.
. . . . . . . . . . . . . . . . .
CT Coaxial/Twinaxial
. . . . . . . . . . . . . . . . . .
CTL Control
. . . . . . . . . . . . . . . . .
CTS Clear to Send.
. . . . . . . . . . . . . . . .
CUR Current
. . . . . . . . . . . . . . . .
CVO Cover Open (Switch).
. . . . . . . . . . . . . . .
D0, D1, etc. Data Bit 0, Data Bit 1, etc..
. . . . . . . . .
DAT Data
. . . . . . . . . . . . . . . . .
DC Direct Current, Data Controller (a functional unit of.
. . . . . . . . . . . . . . . . .
the CMX controller board)
DCD Data Carrier Detect.
. . . . . . . . . . . . . . .
DIAG Diagnostic
. . . . . . . . . . . . . . . .
DIFF Differential
. . . . . . . . . . . . . . . .
DMA Direct Memory Access.
. . . . . . . . . . . . . . .
DP Data Processing, DataProducts.
. . . . . . . . . . . . . . . . .
DPMC Dot Plucker Memory Controller.
. . . . . . . . . . . . . .
DPU Data Processing Unit.
. . . . . . . . . . . . . . .
DRAM Dynamic Random-Access Memory.
. . . . . . . . . . . . . .
DRV Drive or Driver.
. . . . . . . . . . . . . . .
DRVR Driver
. . . . . . . . . . . . . . .

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IBM 6400 Series Specifications

General IconGeneral
BrandIBM
Model6400 Series
CategoryPrinter
LanguageEnglish

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