ViewStat Installation and Wiring

Connecting to an Axcess Master Controller 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 Axcess Master Controller (i.e. Axcent3 or Axcent3/PRO).

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. 9 shows the wiring configuration for Axcess systems (using the DB-9 PROGRAM port).

ViewStatRS232/422/485

(CommunicationPort terminal)

FIG. 9 Connecting the ViewStat to an Axcess Control System via the RS232/422/485 (DB-9) port

ViewStat Communicating Thermostat

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AMX ViewStat manual DB-9 Pinouts Wiring and Baud Configurations, Rxd, Txd, Tx+, Rx+

ViewStat specifications

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In conclusion, AMX ViewStat is a state-of-the-art thermostat solution that offers a blend of advanced technology, ease of use, and energy efficiency. With features like remote connectivity, compatibility with various HVAC types, and integration with broader automation systems, it stands as a comprehensive solution for modern living and working environments.