HP 8901B - Page 48

Installation Model 8901B
5. Use a pencil to set the switches to the desired HP-IB address and Talk Only (TON) or Listen
Only (LON) condition. The switch
is illustrated in Figure 2-2. Facing the board, the left hand
switch (marked with
a “5”) is the most significant address bit (A5 in Table 2-2). Setting a switch
toward the printed circuit board places
it in its “1” position. If the TON and LON switches are
both set
to “l”, the Talk Only setting will override. If the address switches and the TON switch are
all set to “l”, the Modulation Analyzer will output one byte (the status byte) each measurement
cycle. (Setting
all switches to “1” defeats HP-IB operation.)
6. Reinstall the top cover by reversing the procedure in previous step 3.
7. Connect the line (Mains) power cable to the Line Power Module and reconnect the HP-IB cable
to the HP-IB connector.
8. To confirm the address, turn on the instrument and select BUS ADRS (Blue Key, LOCAL). To
confirm a
talk only or listen only setting, key in 21.0 SPCL. The display shows a binary number
in the form AAAAA.TLS where AAAM is the HP-IB address in binary and T,L, and S indicate
talk, listen, and service request
status.
lbble 2-2. Allowable HP-IB Address Codes
A
95
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
-
-
-
ire
94
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
-
-
-
8s
43
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
-
-
-
itcl
A2
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
-
-
-
‘S
A1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
-
-
-
Talk
Address
Character
A
B
C
D
E
F
G
H
i
J
K
L
M
N
0
P
Q
R
S
T
U
v
W
X
Y
Z
@
r
\
1
..
Invalid
Listen
Address
Zharacter
SP
!
#
$
%
&
(
1
+
-
I
0
1
2
3
4
5
6
7
8
9
c
>
Invalid
- -
Decimal
Equivalen
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
2-6