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116 Diagrams
Table 6-2. Signal Name Mnemonics
Mnemonic Description Mnemonic Description
A(0)--A(15) Address lines MSRQ Microprocessor service request
AD (O)--AD(7)
Address bus
NDAC
Not data accepted (GPIB)
AMB_SENSE
Ambient temperature sense
NEG_IMON
Negative current monitor
ANA(0)--ANA(7)
Analog Signal readback bus
NRFD
Not ready or data (GPIB)
ATN
Attention (GPIB)
OV
Overvoltage
BIAS_OK
±15V bias supplies have stabilized
OV_CLR Overvoltage clear
BOVPROG
BuFfered OV programming
OVCMP
Overvoltage comparator
BSTX BuFfered secondary transmit OVP_BIAS Overvoltage protection bias
cc
Constant current status
OVPROG
Overvoltage programming
CCPROG
Constant current programming
OVSCR
Overvoltage SCR (crowbar)
cv
Constant voltage status
PCLR
Primary power clear
CVPROG
Constant voltage programming
PREF
Primary reference voltage (2.53V)
D(0)_D(7)
Data lines
PREF_2
Primary reference voltage (1.0V)
D101--Dl08 Data lines (GPIB) PREN Primary remote enable
DAV
Data valid (GPIB)
PRX
Primary receive serial data
DFI
Discrete fault indicator
PTX
Primary transmit serial data
DFI-EN
Discrete fault indicator enable
PWM_EN
Pulse width modulator enable
DPS
Downprogramming shunt
RAM
Random access memory
DN_PGM Down programming RDY Ready
DRIVE_A/B
FET drive signals
REN
Remote enable
EOI
End or identify (GPIB)
RI
Remote inhibit
FAC_CAL
Factory calibration
ROM
Read only memory
FAN_PWM
Fan pulse width modulation
SPCLR
Secondary power clear
FPRX
Front panel receive serial data
RX
Receive serial data
FPTX Front panel transmit serial data RxD Receive Serial Data
FS
Fast sense
SA
Signature analysis
HSRQ
GPIB service request
SRQ
Service request (GPIB)
IFC
Interface clear (GPIB)
SRX
Secondary receive serial data
IMON
Current monitor
STX
Secondary transmit serial data
INH_CAL
Inhibit calibration
TxD
Transmit Serial Data
IP External current programming UART Universal asynchronous
receive/transmit
IPROG
Current programming
VMON
Voltage monitor
ISEN
Current sense
vos
Voltage offset
ISRQ
Interface service request
VPROG
Voltage programming
KO(0)-KO(5) Keypad output data bus WR Write
KI(0)--KI(5) Keypad input data bus