Racal Instruments 2151 Manual page 21

20 ghz and 2.6 ghz vxi counters
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TABLE
3.3
P2 VXI
Connector Pin Assignment
Pin
Row
A
Signal
Mnemonic
Row
B
Signal
Mnemonic
Row
C
Signal
Mnemonic
1
ECLTRGO
+
5V
CLK10
+
2
-2V
GND
CLK10-
3
ECLTRG1
RSV1
GND
4
GND
A24
-5.2V
5
LBUSA00
A25
LB
US COO
6
LBUSA01
A26
LBUSC01
7
-5.2V
A27
GND
8
LBUSA02
A28
LBUSC02
9
LBUSA03
A29
LBUSC03
10
GND
A30
GND
11
LBUSA04
A31
LBUSC04
12
LBUSA05
GND
LBUSC05
13
-5.2V
+
5V
-2V
14
LBUSA06
D16
LBUSC06
15
LBUSA07
D17
LBUSC07
16
GND
D18
GND
17
LBUSA08
D19
LBUSC08
18
LBUSA09
D20
LBUSC09
19
-5.2V
D21
-5.2V
20
LBUSA10
D22
LBUSC10
21
LBUSA11
D23
LBUSC11
22
GND
GND
GND
23
TTLTRGO*
D24
TTLTRG1*
24
TTLTRG2*
D25
TTLTRG2*
25
+
5V
D26
GND
26
TTLTRG4*
D27
TTLTRG5*
27
TTLTRG6*
D28
TTLTRG7*
28
GND
D29
GND
29
RSV2
D30
RSV3
30
MODiD
D31
GND
31
GND
GND
+
24V
32
SUMBUS
+
5V
-24V
3-4
2151
OPS
A1571/DA

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