SERIES
9900
12 11 10 9 8
7 8 5
4 3 2 1
24 23 22 21 20 19 18 17 18 15 14 13
If 1F 1F71-
" ]; 7 1F" 1F lr -i:).}
CND
11
GND
9
GND
7
REN 0107 0105
9000
SERIES
GAUSSMETERS
SECTION V I continued
Communications Interface
SHIELD SRQ NDAC D AV 0 1 0 4 D102
ATN I F C NRFD E O I 0 1 0 3
0101
7461122ZOOCCO
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LOGIC GND C N D G N D D 1 0 8 0 1 0 6
GND 1 0
8
Pin-1.2.3.4.13.14.15.16:
Data (D10)
Pin-5: End or Identify (E01)
Pin-6: Data Available (DAV)
Pin-7: Not Ready for Data
(NW))
Pin-8: Not Data Accepted
(NDAQ)
Pin-9: Interface Clear (IFC).
Pin-10: Service Request
(SRQ)
Pin-11: Attention (ATN)
42
Figure VI-E
IEEE-488 Connector
These are the eight data lines D101 through
DI08, respectively.
This line is normally asserted by a talker to
indicate the end of a multiple byte data
transfer. When E01 is asserted along with
ATN (Attention), it indicates that the
controller is conducting a parallel poll.
This line is asserted when a talker puts a data
byte on the bus.
This line is asserted by a listener until it is
ready to accept a data byte.
This line is asserted by a listener until it has
accepted a data byte.
Asserted by the system controller to force all
other devices to go idle.
This line can be asserted by any device
requiring service.
Asserted by the controller to indicate that
the byte on the data bus is an interface
command.
