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Review of the 1738-ADNX
Rules and the
MACID Parameter
21. Select the Parameters tab and choose Download.
22. Verify that your window looks similar to the following window.
To understand some of the MACID parameters, you should review
some of the rules for using the 1738-ADNX.
• The 1738-ADNX always has address 0 on the Subnet.
• All ArmorPoint I/O backplane module MACIDs must be
numerically less than those of non-backplane Subnet modules.
• Each backplane module's MACID must be greater than that of its
left neighboring module.
• The 1738-ADNX has a unique attribute: Max(imum) Backplane
MACID. This value represents the highest node address of a
module residing on the backplane. This value must be greater
than or equal to the rightmost backplane ArmorPoint I/O
module, but must be less than that of any non-backplane Subnet
module. You select this value to allow for the future addition of
backplane modules. The attribute's default value is 31,
representing the middle of the address range.
Quick Start For the 1738-ADNX
Publication 1738-UM001A-EN-P - February 2005
B-9
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