HP 8340b - Page 318

/^
GND
HP-1
GND
HP-1
GND
HP-1
GND
HP-1
GND
HP-1
GND
HP-1
GND
HP-1
RE
D10
DID
010
010
s^
Mnemonics
Table
Mnemonic
ATN
DAV
DI01
through
8
EOI
IFC
NDAC
NRFD
REN
SRQ
B
——
B
—
B
—
B
—
r
7
—
5
—
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
LOW
II
GND
HP-IB
-^————
CONNECT
TO
pTN
ERRTH GROUND
SRQ
IFC
NDRC
NRFD
DRY
EOI
D104
0103
0102
0101
NOTE
The
HP-IB
logic
levels
are
TTL
compatible,
i.e.,
true
state
0 V
dc
to
0.4
V
dc,
False
State
+2.5
V
dc to
+5Vdc.
Description
=
Attention
control
line
=
Data
Valid
control
line
=
Data
Input/Output
lines
=
End
Or
Identify
control
line
=
Interface
Clear
control
line
=
Data
Not
Accepted
control
line
=
Not
Ready
For
Data control
line
=
Remote
Enable
control
line
=
Service
Request
control
line
Figure
G-20.
HP-IB
Connector
(J21)
G-48
Rear
Panel
Theory
of
Operation
HP 8340B/41B