Xycom XVME 590 Manual page 36

XVME-500/590 Manual
February, 1988
2.6.4.5 External Trigger Selection (J 17)
Jumper J17 is installed for external trigger usage.
connector JK1) becomes logic ground reference.
trigger option, J21D
common analog ground for pseudo-differential (PDI) mode.
external trigger are desired, do not use
trigger elsewhere on the module.
2.6.5 Input Calibration Grounding Jumpers (523, 524)
These jumpers are used to ground a single input channel in either the SE or DI
mode for purposes of programmable gain offset adjustment (calibration).
inputs are configured for single-ended operation, inserting jumper
channel 8 to ground. Inserting
inserting both J23 (channel 0 Hi) and J24 (channel 0 Lo) will short channel 0 to
ground.
Table 2-11 shows the relationship between the jumpers and the grounded channels.
Refer to Chapter 4 (Calibration) for exact input calibration procedure.
Jumpers
I
J23 & J24
2.7 CONNECTOR
2.7.1
Connector JKl (XVME-500
The analog input channels are accessible on the front panel of the module via the
single mass termination header labeled, JKl. Connector JKl is a 50-pin
to input analog signals. Its pin-out is compatible with the Analog Devices 3B series
Universal Signal Conditioning System. Table 2-12 defines JKl's pin-out.
should not be used.
J24 shorts channel 0 to ground. In differential mode,
Table 2-11. Input Calibration Grounding Jumpers
Input Configuration
Single-ended (SE)
Single-ended (PDI)
Differential
PIN ASSIGNMENTS
If J17 is used for an external
When J17 is removed, pin-49 uses J21 as
J17. Find a logic ground for external
Only)
2-20
When installed, pin-49 (of
If both PDI and an
J23 shorts input
Channel Sorted to Ground
Channel 8
Channel 0
Channel 0
header used
If the