Agilent Technologies E8362C Service Manual page 151

PNA Series Microwave Network Analyzers
E8362C, E8363C, E8364C
Table 5-5 AUX I/O Connector Pin Assignments
Pin Numbers Name
1 ACOM
2–3 Analog Out 2–1
4 No connect
5 DCOM
6–8 Pulse Out 3–1
9 +5 V
10 Pass/Fail Write Strobe
11 Sweep End
12 Pass/Fail
13 Output Port Write Strobe
14 Analog In
15 ACOM
16 Power Button In
17 DCOM
18 Ready for Trigger
19 External Trigger In
20 Footswitch In
21 +22 V
22–25 In/Out Port C0–3
Service Guide E8364-90038
DB-25 Male Connector
Function
0 V, ground reference for analog signals
10 to +10 Vdc output, 10 mA max, Ro = 100 W
For future enhancements
0 V, ground reference for digital signals
TTL out, programmable pulse (for future use)
+5 Vdc output, 100 mA max.
TTL out, active low (1 s min) indicates pass/fail line is valid
TTL out, active low (10 s min) indicates sweep is done
TTL out, latched, indicates pass or fail (programmable polarity)
TTL out, active low (10 s min) writes I/O port data
10 to +10 Vdc input, Ri = 100k W
0 V, ground reference for analog signals
Open-collector input, active low replicates a power button press
0 V, ground reference for digital signals
TTL out, low indicates ready for external trigger
TTL in, level trigger (width >1 ms), programmable polarity
TTL in, active low (width >1 ms), triggers a programmable event
+22 Vdc output, 100 mA max.
TTL I/O, general purpose
Theory of Operation
Source Group Operation
5-15