Exfo IQS-12004B DWDM Passive Component Test System for Uživatelský manuál stáhnout pdf (Strana 371)

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COM Objects Reference

DWDM Passive Component Test System 359

Analysis Interface—Properties

Analysis

CrossTalkTables

Description This read-only property returns a one-dimensional array

containing several crosstalk tables (a crosstalk table for each

power level). Each crosstalk table corresponds to a

two-dimensional array containing crosstalk values (in dB)

between all channels under test.

Syntax Each crosstalk table is accessible through the use of an index.

object.CrossTalkTables (Index)

Parameters Index: Required. A Long value corresponding to the power level

for which a crosstalk table is requested.

Response A Variant containing a two-dimensional array of Variant values.

The values can be either a string or a numeric value.

Note The array forms a square matrix where:

³ Number of rows = number of channels that have been

scanned + 1 (for the title row).

³ Number of columns = number of channels that have been

scanned + 1 (for the title column).

The first row (after the title row) and the first column (after the

title column) represent the first channel scanned (i.e.

ChannelStart set through the DoAnalysis method). In the same

way, the last row and the last column represent the last channel

scanned (i.e. ChannelStop).

The value at the intersection of a column and a row is the

crosstalk calculated between the channels represented by the

column and by the row. This means that the values in the

diagonal of the matrix (i.e. where column = row) are all N/A.

Access Get

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