Amx ViewStat Manual de usuario Pagina 22

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ViewStat Installation and Wiring
16
ViewStat Communicating Thermostat
Connecting to NetLinx Integrated Controllers via the RS232/422/485 (DB-9) Port
The table below lists the connector pins, signal types, and signal functions for RS-232/RS-422/RS- 485 DB-9
(male) connector on an NetLinx Integrated Controllers (i.e. NI-2000/3000/4000).
FIG. 9 shows the wiring configuration for NetLinx systems (using the DB-9 PROGRAM port).
DB-9 Pinouts Wiring and Baud Configurations
Pin Signal Function RS-232 RS-422 RS-485
1 RX- Receive data X X (strap to pin 9)
2 RXD Receive data X
3 TXD Transmit data X
4 TX+ Transmit data X X (strap to pin 6)
5 GND Signal ground X X
6 RX+ Receive data X X (strap to pin 4)
7 RTS Request to send X
8 CTS Clear to send X
9 TX- Transmit data X X (strap to pin 1)
The X’s show where to terminate the wires on the DB-9 connector.
FIG. 10
Connecting the ViewStat to an NetLinx Integrated Control System via the RS232/422/485 (DB-9) port
ViewStat
(Communication
terminal)
RS232/422/485
Port
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