Abbreviations Used in Part Descriptions
This section defines the reference designators, and abbreviations, and option numbers that are used in the part descriptions
throughout this chapter.
Reference
Designator
A
assembly
AT
attenuator
B
fan
BT
battery
CPU
central processing unit
CW
conical washer (screws)
DS
lamp
FL
flathead (screws)
GPIB
general purpose interface bus
Hex
hexagonal
J
electrical connector; jack
MID
microcircuit interface deck
P
electrical connector; plug
PN
panhead (screws)
Qty
quantity
RPG
rotary pulse generator
SMI
source module interface
TX
TORX recess (screws)
W
cable; transmission path; wire
Options
1E1
Adds output step attenuator for extended range to
-135 dBm
1EA
High RF output power +20 dBm at 20 GHz, +14
dBm at 40 GHz
1ED
Type-N RF output connector (20 GHz only)
UNJ
Improved close-in phase noise
Abbreviations Used in Part Descriptions
Description
Description
Replaceable Parts
3-5