Keysight E4980A User Manual page 477

Handler Interface
Setting Up the Handler Interface Board
Step 7. If
the setting you want to use, mount the pull-up resistor for the comparator
test result output signals. The pull-up resistor for DCV1 uses J1 and J2,
whose locations are indicated as J1 and J2 on the handler interface board.
The pull-up resistor must be a resistor array of which the characteristics
satisfy the following formula:
Equation E-1 R
where:
— Vp [V]: pull-up voltage
— R [k]: pull-up resistance
For the typical pull-up resistor values, refer to
Step 8. Go through the flow chart in
settings for the control output signals:
Step 9. Set up the jumpers as instructed in
Table E-12 Jumper and bit switch settings for control output signals
Setting # JP2
Setting 1 1
Setting 2 2
Setting 3 3
Setting 4
1
-
1. Set to 3 when using input signals (it is not necessary to mount the pull-up resistor).
Step 10. If
the setting you want to use, mount the pull-up resistor for the control output
signals. The pull-up resistor for DCV2 uses J3, whose location is indicated as
J3 on the handler interface board.
The pull-up resistor must be a resistor array of which the characteristics
satisfy the following formula:
Equation E-2 R
Keysight E4980A/AL User's Guide
Table E-11 shows "Required" in the "Pull-up resistor mounting" column for
Vp

------ -
3
Bit 6 of Circuit common
S1
On Instrument's circuit
common
On Instrument's circuit
common
Off COM2
Off COM2
shows "Required" in the "Pull-up resistor mounting" column for
Table E-12
Vp

------ -
3
Table E-14 on page
to determine the jumper and bit switch
Step 5
Table E-12.
Pull-up resistor
mounting
Required
Required
Required
Not required
478.
Pull-up vol tage
+5 V, internal
+12 V, internal
+5 V through +24 V,
external
(EXT.DCV2)
-
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