Architecture | Property Management System - Communication Interface |
Cabling Considerations
When the PMS is connected to the NEAX through a modem, the cables should just be “straight through” cables. There should be no crossing.
When the PMS is directly connected to the NEAX, use the following pin assignments:
NEAX |
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Pin No. | Signal |
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1 | FG |
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2 | SD |
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3 | RD |
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4 | RS |
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5 | CS |
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6 | DR |
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7SG
8CD
15 | ST2 |
17 | RT |
20ER
24ST1
| PMS |
Signal | Pin No. |
FG | 1 |
SD | 2 |
RD | 3 |
RS | 4 |
CS | 5 |
DR | 6 |
SG | 7 |
CD | 8 |
ST2 | 15 |
RT | 17 |
ER | 20 |
ST1 | 24 |
Figure 2-7 Direct Connection Pin Assignments
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