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EX1200A Triggering
77
DMM
M
EASUREMENT
B
ASICS
When making a measurement, the following sequence should be followed:
These steps are discussed in detail in the following sections for IVI-COM.
S
ELECT AN
I
NPUT
C
ONNECTOR
There are two connections that can be used to take a measurement: the front panel banana jacks or
the DMM Bus. The banana jacks on the front panel allow connection to the DMM via the front
panel, while the DMM Bus allows for connection from either the DMM Bus rear panel connector
or from switch cars that have access to the EX1200A DMM bus via their backplane connectors.
Figure 4-2 shows how the EX1200A backplane switches between the DMM Bus and front panel.
Note that certain switch cards and instruments can connect to the DMM Bus as well.
Matrix
EX1200-
4128
6
DMM
Slot 1
Matrix
EX1200-
4128
Slot 2
Matrix
EX1200-
4128
Slot
n
DMM Front Panel
(Banana Jacks)
DMM Bus
(DB-9 Connector
on Rear Panel)
………
...
EX1200A Backplane
F
IGURE
4-2:
DMM
B
ACKPLANE
C
ONNECTIVITY
IVI-COM Programming Interface
The
VTEXDmmInputSelectEnum
interface provides properties for setting the input connector.
Summary of Contents for Ametek EX1200A Series
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