E8257D/67D, E8663D PSG Signal Generators Service Guide 251
Replaceable Parts
Abbreviations Used in Part Descriptions
Abbreviations Used in Part Descriptions
This section defines the reference designators, abbreviations, and option
numbers that are used in the part descriptions throughout this chapter.
Table 2-25
Reference
Designator
Definition
Aassembly
AT attenuator
Bfan
DS lamp
J electrical connector; jack
W cable; transmission path; wire
Table 2-26
Abbreviation Definition
BN buttonhead (screws)
CPU central processing unit
CW conical washer (screws)
EXT external
FL flathead (screws)
Ft feet
Hex hexagonal
GPIB general purpose interface bus
HX hexagonal recess (screws)
Iin-phase
LF low frequency
M meters or metric hardware
PC patch lock (screws) or printed circuit
PN panhead (screws)
Q quadrature
Qty quantity
RF radio frequency
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