HP 5501A Operating And Service Manual page 127

Table 4-7. 70740A Coupler Bus Lines
STATUS
5. The indicated card (data transmitter) puts data, decimal point information, and error
information on the backplane.
-
6. The indicated card (data transmitter) drives DAV low to indicate backplane data is
valid.
I
FUNCTION
POWER
ADDRESSES
INSTRUCTIoNS(
'OMMANDS
(
DECIMAL POINT{
MODE-STATUS
POWER
/
DATA
\
7 . The indicated card (data receiver) accepts the data on the backplane.
PINS
1
3
5
7
9
1 1
13
15
17
19
21
23
25
27
29
31
33
35
Key
-
37
39
41
43
45
47
49
51
53
55
57
59
61
63
65
67
69
71
73
75
77
79
81
83
85
NAMES
+I5 VOLTS
-15 VOLTS
f 1 5 RETURN
SPARE
CARD ADDRESS-A
CARD ADDRESS-C
CARD CMD-A
CARD CMD-C
DATA VALID
INSTRUCTION VALID
OPERATION COMPLETE
SAMPLE
REF ERROR-BIT
V.O.L. ERROR-BIT
D.P.-BIT-1
D.p.-BIT-3
A-MODE BIT
SPARE
+5V RETURN
+5V RETURN
+5 VOLTS
+5 VOLTS
+5 VOLTS
+5VRETURN
+5V RETURN
SPARE
DATA BIT 1
DATA BIT 3
DATA BIT 5
DATA BIT 7
DATA BIT 9
DATABIT11
DATA BIT 13
DATABIT15
DATA BIT 17
DATA BIT 19
DATA BIT 21
DATA BIT 23
DATABIT25
DATA BIT 27
MAKE N O CONNECTION
PINS
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
Key
-
38
40
42
44
46
48
50
52
54
56
58
60
62
64
66
68
70
72
74
76
78
80
82
84
86
NAMES
+I5 VOLTS
-15 VOLTS
f 1 5 RETURN
SPARE
CARD ADDRESS-B
CARD ADDRESS-D
CARD CMD-B
CARD CMD-D
DATA VALID
INSTRUCTION VALID
OPERATION COMPLETE
PWR-UP/SYSTEM RESET
MEAS ERROR-BIT
OVFL-BIT
D.P.-BIT-0
D.P.-BIT-2
SYSTEM NULLED
SPARE
+5V RETURN
+5V RETURN
+5 VOLTS
+5 VOLTS
+5 VOLTS
+5V RETURN
+5V RETURN
SPARE
DATA BIT 0
DATA BIT 2
DATA BIT 4
DATA BIT 6
DATA BIT 8
DATABIT10
DATA BIT 12
DATABIT14
DATA BIT 16
DATA BIT 18
DATA BIT 20
DATA BIT 22
DATA BIT 24
DATA BIT 26
MAKE N O CONNECTION