Keysight N5227B, Руководство по обслуживанию

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5-18 Keysight N5227B Service Guide
Theory of Operation
Synthesized Source Group Operation
5-
9–11 AD4–AD2 TTL I/O, address and latched data
12 GND 0 V, ground reference
13 Interrupt In TTL in, low level (10
μ
s min) aborts sweep
14 +22 V +22 Vdc, 100 mA max.
15–16 SEL1–2 TTL out, test set select bits 1-2, tied to 0 V
17 AD11 TTL I/O, address and latched data
18 SEL3 TTL out, test set select bit 3, tied to 0 V
19–21 AD7–5 TTL I/O, address and latched data
22–23 AD0–1 TTL I/O, address and latched data
24 LDS TTL out, active low data strobe (1
μ
s min)
25 RLW TTL out, high = read, low = write
Table 5-3 HANDLER I/O Connector Pin Assignments
Rectangular 36-Pin Female Connector
Pin Numbers Name Function
1 GND 0 V, ground reference
2 INPUT1 TTL in, negative pulse (1 μ s min) latches OUTPUT1-2
3–4 OUTPUT1–2 TTL out, latched
5–12 Port A0–7 Out TTL out, latched
13–20 Port B0–7 Out TTL out, latched
21–24 Port C I/O TTL I/O, latched
25–28 Port D I/O TTL I/O, latched
Table 5-2 TEST SET I/O Connector Pin Assignments
DB-25 Female Connector
Pin Numbers Name Function