Bus Address And Message; Terminator Switches; Setting The Gplb Address Switches - Tektronix DC 5010 Anleitung

Pin 28A. Arming Input Ground-This terminal is the ground
return for the rear interface arming input signal.
Functions Available at Left Rear Interface
Connector ( P I 820). Refer to Fig. 5-7 for connector
assignments.
GPlB Rear Interface Connector ( P I 001 )
Refer to Fig. 5-8 for the following connector
assignments.
Functions Available at GPlB Connector
(located on the GPlB board, A14)
Pins 1
GPlB data bus lines-Digital data input-output
through 8 lines (one through eight).
Pin 11 EOI
-
End or Identify.
Pin 12 IFC
-
lnterface Clear.
Pin 13 DAV
-
Data Valid.
Pin 14 SRQ
-
Service Request.
Pin 15 NRFD
-
Not Ready For Data.
Pin 16 ATN
-
Attention.
Pin 17 NDAC
-
Not Data Accepted.
Pin 18 REN
-
Remote Enable.
OUTPUT O R
INPUT
EMITTER LEAO OF
PNP SERIES PASS
P I N
B
t
COLLECTOR LEAD OF
EMITTER LEAD OF
NPN SERIES PASS
NPN SERIES PASS
12
, ,
+26V DC
COLLECTOR LEAD OF
PNP SERIES PASS
+26V COMMON
I
BASE LEAO OF
1 6 1
1 6 1 N P N S E R l E S P A S S I
P I N
A
+26V DC
BASE LEAD OF
PNP SERIES PASS
12
I
I
I
+8V COMMON
1
4
4 +8V COMMON
I
OUTPUT O R
1 NPUT
i
9
I
I
+8V COMMON
1
3 3 +8V COMMON
9
Fig.
5-7.
Left rear interface connector assignments.
226V COMMON
+8V DC
I
OUTPUTOR
IPINI IPINI
OUTPUTOR
1 NPUT INPUT
3897-20
*
NOT USED I N DC 501 0
Fig. 5-8. Rear GPlB interface connector assignments.
3897-1 9
2
BUS ADDRESS AND MESSAGE
TERMINATOR SWITCHES
Setting the GPlB Address Switches
OF
PLUG-IN
A single bank of six switches is located on the Digital
board. See Fig. 5-9.
NOTE
2
The address switch located on the GPIB board does
not function.
+8V DC
The lower five of these switches (A5 through A l ) set the
desired value of the lower five bits of the listen and talk
addresses for the DC 5010. The decimal value of these
switches is called the instrument's primary address (see Ta-
ble 5-2) which corresponds to the listen and talk addresses.
The DC 5010 microprocessor reads these switches at
each power-up event and displays the primary address in
the front panel display window each time the INST ID push
button is pressed. If the termination switch is set to EOIILF
(logic I ) , the GPlB address is displayed with a decimal point.
If it is set to EOI ONLY (logic 0) the GPlB address number is
displayed.
- \
The DC 501 0 is shipped from the factory with the switch
set to address 20 and EOI ONLY.