Agilent Technologies 4294A Programming Manual page 125

Table 9-1 Signal assignment
Pin number
Chapter 9
Communication with External Equipment (Using the I/O Ports)
Signal name
1 GND
2 INPUT1TTL
3 OUTPUT1
4 OUTPUT2
5 Output port A0
6 Output port A1
7 Output port A2
8 Output port A3
9 Output port A4
10 Output port A5
11 Output port A6
12 Output port A7
13 Output port B0
14 Output port B1
15 Output port B2
16 Output port B3
17 Output port B4
18 Output port B5
19 Output port B6
20 Output port B7
21 Input/output port C0
22 Input/output port C1
23 Input/output port C2
24 Input/output port C3
25 Input/output port D0
26 Input/output port D1
27 Input/output port D2
28 Input/output port D3
29 Port C status
30 Port D status
31 Write strobe signal
32 +5V pull-up
33 SWEEP END signal
34 +5V
35 PASS/FAIL signal
36 PASS/FAIL write strobe
signal
Signal specification
0 V
TTL level, pulse input (width: 1 μs or more)
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level, latch output
TTL level (input mode: LOW, output mode: HIGH)
TTL level (input mode: LOW, output mode: HIGH)
TTL level, negative logic, pulse output (width: 10 μs; typical)
TTL level, negative logic, pulse output (width: 7 μs; typical)
+5V, 100 mA MAX
TTL level (PASS: HIGH, FAIL: LOW), latch output
TTL level, negative logic, pulse output (width: 10 μs; typical)
Using the I/O Ports
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