Architecture | Property Management System - Communication Interface |
From the NEAX to the PMS
Send | Receive |
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| Send |
Start | Accept |
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| Message | Accept |
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Sequence |
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| retry | ||
| Reject | 1 | retry |
| Reject | 3 | quit | |
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| quit |
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| No Answer |
| 2 | retry | No Answer |
| 4 | quit |
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| quit |
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| retry | |
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| Contention |
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| Interrupt |
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| Interrupt |
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| Abort |
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| Query |
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| Abort |
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| Pause |
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| Pause |
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| retry |
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| Wait |
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| 5 | |
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| 1 second |
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| End |
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| Code |
1 - Retry is 3 times; quit on 4th Reject.
2 - Retry is 15 times; quit on 16th No Answer. 3 - Retry is 3 times; quit on 4th Reject.
4 - Retry is 32 times; quit on 33rd No Answer. 5 - Retry is 3 times; quit on 4th Pause.
Figure 2-2 NEAX to PMS Protocol
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