Amx ViewStat Manuel d'utilisateur Page 23

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ViewStat Installation and Wiring
17
ViewStat Communicating Thermostat
Connecting to a NetLinx Master controller via NXC-COM card
The Viewstat can connect to a NetLinx NXF Cardframe or NXI equipped with a NXC-COM Dual COM Port
Control Card. The following table shows the card edge pinout information for the NXC-COM card.
FIG. 11 shows the wiring configuration for NetLinx systems.
NXC-COM2 Pinouts NXC-COM2 Wiring Configuration
Pin Signal Function RS-232 RS-422 RS-485
1 GND Signal ground X X
2 RXD1 Receive data X
3 TXD1 Transmit data X
4 CTS1 Clear to send X
5 RTS1 Request to send X
6 TX1+ Transmit data X X (strap to pin 8)
7 TX1- Transmit data X X (strap to pin 9)
8 RX1+ Receive data X X (strap to pin 6)
9 RX1- Receive data X X (strap to pin 7)
10 +12 VDC Power Optional Optional
11 GND Signal ground X X
12 RXD2 Receive data X
13 TXD2 Transmit data X
14 CTS2 Clear to send X
15 RTS2 Request to send X
16 TX2+ Transmit data X X (strap to pin 18)
17 TX2- Transmit data X X (strap to pin 19)
18 RX2+ Receive data X X (strap to pin 16)
19 RX2- Receive data X X (strap to pin 17)
20 +12 VDC Power Optional Optional
FIG. 11
Connecting the ViewStat to a NetLinx Control System
ViewStat
(Communication
terminal)
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