-498                                                                                           Keysight E4980A/AL User’s Guide
Scanner Interface
Signal Input/Output Connector
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Scanner Interface I/O Connector Pin Assignments
The pin assignments for the scanner interface I/O connector are shown in 
Figure F-2 and Table F-7.
Figure F-2  Scanner interface I/O connector pin assignments
Table F-7  Scanner interface I/O connector pin assignments
Pin No. Signal Name Input/Output Description
1 /CH0 Input Channel Selection Signal
2 /CH2
3 /CH4
4 /CH6
5 /CH_VALID Input Channel Valid Signal
6 /INDEX Output Analog Measurement Complete Signal.
7 EXT.DCV Input External DC Voltage.
Used as pull-up voltage of input/output signals. 
The setting range is from 5 V to 15 V.