Segmented Matrix 40-560-021

 

This documents a specimen 40-560-021 BRIC configuration, as a 50 x 8 matrix using two 46 x 8 daughtercards; the second daughtercard being partially populated as 4 x 8. This design is segmented only on the X-axis (each daughtercard having Y-isolation switches only).

 

In its standard configuration as a single 50 x 8 matrix sub-unit, when channel selections are made using functions such as:

operation of isolation switches is automated to optimise connections for X - Y signal routing. pipx40_operateSwitch allows access to individual switches for other routing schemes or fault diagnostic purposes.

 

Note that an alternate logical configuration is possible, the unit being treated as multiple sub-units and giving independent access to all switches via the ordinary control functions: for that configuration pipx40_operateSwitch would not be applicable.

 

In a unit employing a larger number of daughtercards, the number of X-segments is correspondingly increased.

Attribute values

The relevant values obtained by pipx40_getSubAttribute when configured for auto-isolation are:

Attribute code

Attribute value

pipx40_SUB_ATTR_CHANNEL_SUBSWITCHES

1

pipx40_SUB_ATTR_X_ISO_SUBSWITCHES

0

pipx40_SUB_ATTR_Y_ISO_SUBSWITCHES

1

pipx40_SUB_ATTR_NUM_X_SEGMENTS

2

pipx40_SUB_ATTR_X_SEGMENT01_SIZE

46

pipx40_SUB_ATTR_X_SEGMENT02_SIZE

4

pipx40_SUB_ATTR_NUM_Y_SEGMENTS

1

pipx40_SUB_ATTR_Y_SEGMENT01_SIZE

8

 

Global crosspoint switch numbers

These numbers correspond to the channel numbers used with pipx40_setChannelState and are valid for pipx40_operateSwitch when:

Segment-local crosspoint switch numbers

These switch numbers are valid for pipx40_operateSwitch when:

Isolation switch numbers

These switch numbers are valid for pipx40_operateSwitch when: