158 Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter
Using Scanner Interface
Input/Output Signal Pin Assignment
9-
Input/Output Signal Pin Assignment
Figure 9-2 shows the pin assignment of the input/output signals of the scanner
interface connector. Table 9-1 gives a description of the input/output signals.
Figure 9-2 Pin assignment of the scanner interface connector
A slash (/) symbol preceding signal names means that they are negative
logic (active low).
Table 9-1 Description of input/output signals of the scanner interface
Pin
number
Signal
name
Input/
Output
Description
1/CH0
Input
Channel number selection signal (8-bit binary
input). Selects the correction data for each
channel of the scanner. The most significant
bit is /CH7 (pin number 11). The least
significant bit is /CH0 (pin number 1).
2/CH2
3/CH4
4/CH6
5 /CH_VALID Input
Channel number identification signal. If the
/CH_VALID signal is LOW, a trigger will set the
channels of the E4981A to the channel
numbers specified by the signals from /CH0 to
/CH7.
e4981aue0016
/ CH 0
/ CH 2
/ CH 4
/ CH 6
/ CH_VALID
/ INDEX
EXT_DCV
/ CH1
/ CH3
/ CH5
/ CH7
EXT_TRIG
/ EO M
COMMON
1 8
2 9
3 10
4 11
5 12
6 13
7 14
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