Racal Instruments 2151 Manual page 20

20 ghz and 2.6 ghz vxi counters
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8
A
10
MHz
signal,
derived
from
the standard in
use,
is
available at the
10
MHz
STD
OUTPUT
connector
on
the front
panel
of
the instrument.
If this
signal
is
used, the
connection
should be
made
using
coaxial
cable.
TABLE
3.2
PI VXI
Connector Pin Assignment
Pin
Row
A
Signal
Mnemonic
Row
B
Signal
Mnemonic
Row
C
Signal
Mnemonic
1
D00
BBSY*
D08
2
D01
BCLR*
D09
3
D02
ACFAIL*
DIO
4
D03
BG01N*
Dll
5
D04
BGOOUT*
D12
6
D05
BG1IN*
D13
7
D06
BGIOUT*
D14
8
D07
BG2IN*
D15
9
GND
BG20UT*
GND
10
SYSCLK
BG3IN*
SYSFAIL*
11
GND
BG30UT*
BERR*
12
DS1*
BR0*
SYSRESET*
13
DS0*
BR1*
LWORD*
14
WRITE*
BR2*
AM5
15
GND
BR3*
A23
16
DTACK*
AMO
A22
17
GND
AMI
A21
18
AS*
AM2
A20
19
GND
A
M3
A19
20
IACK*
GND
A18
21
IACK1N*
SERCLK
A17
22
IACKOUT*
SERDAT*
A16
23
AM4
GND
A15
24
A07
IRQ7*
A14
25
A06
IRQ6*
A13
26
A0
5
IRQ5*
Al
2
27
A04
IRQ4*
All
28
A03
IRQ3*
A10
29
A02
IRQ2*
A09
30
A01
IRQ1
*
A08
31
-12V
+
5V STB
Y
+
12V
32
+
5V
+
5V
+
5V
2151
OPS
Al
5 7
1/DA
3-3

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