Difference between revisions of "Network Object Reference"
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== Entity Classes == | == Entity Classes == | ||
| − | + | Used when referring to an intercom object with internal binary (“physical”) identification. | |
== Entity Subclasses == | == Entity Subclasses == | ||
Revision as of 15:11, 21 June 2007
All exchange resources can be referenced either by directory numbers, or “physical numbers”. This is a challenge for the data protocol, as directory numbers can vary in size, and some resources have physical addresses with multiple parts. The NET_OBJ_REF is a “variant record” which has a header with byte count plus a type field. The rest of the information is then according to the type field and length. The total length can vary from 1 to 16 bytes.
NOTE: AlphaCom 08.00 have a fixed size internally of 6 bytes for NET_OBJ_REF fields!
Format
<header> <contents….>
Where:
- <header> UINT1 defines both the length and the format:
- <length> 4 bits. The length of the representation not including the first byte itself.
- <format> 4 bits. The format of the representation. See the table below.
- <contents> See the table below.
Entity Classes
Used when referring to an intercom object with internal binary (“physical”) identification.