AMX ViewStat User Manual

Operation/Reference Guide

ViewStat

Communicating Thermostat

Product Category

Last Revised: 5/16/2008

AMX Limited Warranty and Disclaimer

AMX Corporation warrants its products to be free of defects in material and workmanship under normal use for three (3) years from the date of purchase from AMX Corporation, with the following exceptions:

• Electroluminescent and LCD Control Panels are warranted for three (3) years, except for the display and touch overlay components that are warranted for a period of one (1) year.

• Disk drive mechanisms, pan/tilt heads, power supplies, MX Series products, and KC Series products are warranted for a period of one (1) year.

• Unless otherwise specified, OEM and custom products are warranted for a period of one (1) year.

• Software is warranted for a period of ninety (90) days.

• Batteries and incandescent lamps are not covered under the warranty.

This warranty extends only to products purchased directly from AMX Corporation or an Authorized AMX Dealer.

AMX Corporation is not liable for any damages caused by its products or for the failure of its products to perform. This includes any lost profits, lost savings, incidental damages, or consequential damages. AMX Corporation is not liable for any claim made by a third party or by an AMX Dealer for a third party.

This limitation of liability applies whether damages are sought, or a claim is made, under this warranty or as a tort claim (including negligence and strict product liability), a contract claim, or any other claim. This limitation of liability cannot be waived or amended by any person. This limitation of liability will be effective even if AMX Corporation or an authorized representative of AMX Corporation has been advised of the possibility of any such damages. This limitation of liability, however, will not apply to claims for personal injury.

Some states do not allow a limitation of how long an implied warranty last. Some states do not allow the limitation or exclusion of incidental or consequential damages for consumer products. In such states, the limitation or exclusion of the Limited Warranty may not apply. This Limited Warranty gives the owner specific legal rights. The owner may also have other rights that vary from state to state. The owner is advised to consult applicable state laws for full determination of rights.

EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY, AMX CORPORATION MAKES NO

OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. AMX CORPORATION

EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED WARRANTY. ANY

IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF THIS

LIMITED WARRANTY.

Table of Contents

Product Information ...........................................................................................1

Introduction .............................................................................................................. 1

System Components ................................................................................................. 2

ViewStat Specifications............................................................................................. 2

Support Module Specifications ................................................................................ 3

Maximum Cable Distances ....................................................................................... 4

HVAC System Pre-Installation Check List .................................................................. 5

ViewStat Installation and Wiring ........................................................................7

Disconnecting Power to All HVAC Equipment.......................................................... 7

Selecting the Thermostat Location ........................................................................... 7

Stand-alone thermostat mounting criteria ...................................................................... 7

With remote temperature sensors .................................................................................. 7

Removing the Faceplate from the Base .................................................................... 8

Setting the DIP Switch .............................................................................................. 9

Reassembly ..................................................................................................................... 9

Attaching the MiniVerter to the ViewStat .............................................................. 10

Wiring the VST-TSTAT to a VST-DIST Distribution Panel ........................................ 11

Mounting the Base to a Wall .................................................................................. 12

Connecting the ViewStat to AMX Control Systems ................................................ 13

Connecting to an Axcess Control System (via AXC-232++, AXB-EM232,

or Axcent3/PRO) ........................................................................................................ 14

Connecting to an Axcess Master Controller via the RS232/422/485 (DB-9) Port.......... 15

Connecting to NetLinx Integrated Controllers via the RS232/422/485 (DB-9) Port...... 16

Connecting to a NetLinx Master controller via NXC-COM card.................................... 17

Connecting to a LandMark Control System................................................................... 18

Installing the Cat5 Suppression Ferrite ......................................................................... 18

Connecting to a NetLinx Control System...................................................................... 18

Connecting to a Landmark Control System................................................................... 19

Connecting the ViewStat to the HVAC System....................................................... 19

Installing the 24 VAC Suppression Ferrite..................................................................... 19

Wiring the Thermostat ........................................................................................... 20

Communication and Equipment terminal wiring definitions.......................................... 20

Connecting the ViewStat to the HVAC System............................................................. 21

Checking HVAC System Operation......................................................................... 23

Check Out Procedure.................................................................................................... 23

Optional HVAC Set-Up Features............................................................................. 24

To access these HVAC set-up features.......................................................................... 24

iewStat Communicating Thermostat

Table of Contents

Address the Thermostats and Set Highest Address................................................ 24

Wiring Diagrams ..................................................................................................... 26

Single-stage furnace and AC configuration. .................................................................. 26

Two-stage furnace and two-stage AC configuration. .................................................... 27

Roof top unit (two-stage heat and two-stage cool) configuration................................. 28

Boiler with AC (two transformers) configuration........................................................... 29

Single-stage heat pump configuration .......................................................................... 30

Two-stage heat pump configuration. ............................................................................ 31

First- stage radiant floor heat, second-stage furnace one stage

of cooling configuration. ............................................................................................ 32

Support Module Installation and Wiring ...........................................................33

Installing the VST-TTM and VST-TRH Support Modules .......................................... 33

Choosing a mounting location....................................................................................... 33

Single Support Module Installation ............................................................................... 33

Multiple Support Module Installation............................................................................ 34

Setting the Support Module DIP Switches.............................................................. 35

DIP switches 1 and 2: Address (1-4) .............................................................................. 36

DIP switch 3: Temperature Sensor 1 ............................................................................. 36

Dip switch 4: Temperature Sensor 2 (VST-TTM support module only) .......................... 36

Dip switch 4: Humidity Sensor 2 (VST-TRH support module only)................................. 36

DIP switch 6: T1/T2 or Onboard Sensor ........................................................................ 36

Applications ............................................................................................................ 37

Heat Pump Applications................................................................................................ 37

Humidity Control (VST-TRH only) .................................................................................. 37

Troubleshooting Remote Sensors ........................................................................... 38

Set Up and Configuration .................................................................................39

Network Override Set-Up ....................................................................................... 40

Thermostat Button Lockout .................................................................................... 40

Security Set-Up ....................................................................................................... 41

Communications Set-Up.......................................................................................... 42

Temperature Set-Up ............................................................................................... 42

Backlighting Set-Up ................................................................................................ 42

Balance Point Set-Up .............................................................................................. 43

Display Set-Up ........................................................................................................ 43

Using the NetLinx Module to Program the ViewStat .......................................45

AMX_ViewStat NetLinx Module - Overview ........................................................... 45

The ViewStat Model ............................................................................................... 46

Command Interface - SEND_COMMANDs .............................................................. 47

String Feedback...................................................................................................... 52

ViewStat Communicating Thermostat

Table of Contents

Operating the Thermostat ................................................................................57

Front Panel Components ........................................................................................ 57

Message Display ........................................................................................................... 57

Scroll/Set-up buttons .................................................................................................... 57

Mode button................................................................................................................. 57

Adjust buttons............................................................................................................... 57

Fan button..................................................................................................................... 58

Enter button.................................................................................................................. 58

Main display .................................................................................................................. 58

Operating The Thermostat ..................................................................................... 59

Selecting the Mode....................................................................................................... 59

Setting temperatures .................................................................................................... 60

Fan operation................................................................................................................ 60

Backlight operation....................................................................................................... 60

Network override.......................................................................................................... 60

Clearing a temporary flashing message ........................................................................ 60

In Case Of Power Failure ........................................................................................ 60

Cleaning the Thermostat ........................................................................................ 60

iewStat Communicating Thermostat

iii

Table of Contents

ViewStat Communicating Thermostat

Product Information

Introduction

The ViewStat Communicating Thermostat (FIG. 1) operates similarly to a conventional thermostat but has the unique capability of being controlled, either locally or remotely from a NetLinx or Landmark control system. The ViewStat is compatible with any 24-volt controlled HVAC system. This manual describes how the ViewStat connects to several different types (see theViewStat Installation and Wiring section on page 7).

If there are any specific wiring needs or unusual wiring configurations please contact AMX Technical Support, and we will endeavor to find the answer, before your installation.

If necessary, contact AMX Technical Support for help with additional specific control wiring scenarios.

Product Information

Message display

Main display

hinged

front panel

Mode

button

Adjust buttons

Mode button

FIG. 1 ViewStat Communicating Thermostat

Enter button Fan button

Scroll/Setup buttons

Communication terminals

base

HVAC Equipment terminals

The ViewStat is designed to work with VST-TTM (Temperature) and VST-TRH (Temperature and Humidity) support modules, and remote sensors.

For information on using the VST-TSTAT with an (optional) VST-DIST Distribution Panel for RS422 control, refer to the Wiring the VST-TSTAT to a VST-DIST Distribution Panel section on page 11.

ViewStat Communicating Thermostat

Product Information

System Components

The components in a complete ViewStat system (including optional accessories) are listed below:

System Components

Component Name Description

ViewStat (VST) Communicating thermostat

VST-TTM Temperature support module (optional)

VST-TRH Temperature/Humidity support module (optional)

VST-TSF Flush-mount remote sensor Indoor flush-mount temperature/relative humidity sensor (optional)

VST-TSO Duct/Outdoor remote sensor Duct/Outdoor-mount temperature/relative humidity sensor (optional)

VST-DIST Distribution Panel

ViewStat Specifications

Control Ports • HVAC control

• ICSNet

Control Voltage 24 VAC ±20% or 24 VDC ±20% (delivered by an HVAC system or by an external

power supply)

Switched Voltage 18 – 30 VAC

Maximum Operating Current • 2 amps total at rated voltage, through all outputs.

• 1 amps through any one output.

Maximum Surge Current 2.0 A

Control Accuracy ±1.0° F (± 0.56° C)

Control Range 40° – 90° F (4.44° – 32.22° C)

Operating Range 32° – 99° F (0° – 37.22° C)

Baud Rate 9600

Front Panel Components:

Message display Two types of messages are displayed, Permanent and Temporary Messages.

• Permanent Messages are those that scroll continually during thermostat operation.

• Temporary (flashing) Messages are intended to catch your eye and must be reset to be removed from the display.

Thermostats are shipped with default (permanent) status messages (i.e. mode status, fan status, equipment status).

Scroll/Set-up buttons The Scroll/Set-Up buttons function with the set-up features of the thermostat

(see theSet Up and Configuration section on page 39). These buttons are located beneath the faceplate.

Main LCD display The MAIN DISPLAY (see FIG. 16 on page 23) provides the mode status, tem-

perature and system status information.

Mode button Five modes of operation are available: OFF, COOL, HEAT, AUTO, and EM.

HEAT (for heat pumps only). The mode of operation indicates how you want your heating and cooling equipment to operate. This button is located beneath the faceplate.

Fan button The fan can be operated continuously (FAN ON) or only when there is a need to

heat or cool. This button is located beneath the faceplate.

Enter button The Enter (or Network Override) button is used to override the home automation

system, to clear temporary flashing messages on the message display and with the set-up features of the thermostat.

Adjust buttons The Adjust buttons adjust the heating and cooling temperature settings.

ViewStat Communicating Thermostat

Product Information

ViewStat Specifications (Cont.)

Circuit Board Components:

Communication and HVAC Equipment connectors

DIP Switch 4-position DIP switch that configures the thermostat for various application types

Enclosure:

Material White plastic with hinged faceplate and removable front panel.

ViewStat Dimensions (HWD)

Weight 5.29 oz. (150 grams)

Included Accessories • Cat5 Suppression Ferrite

Optional Accessories • VST-TTM Remote Temperature support module (FG944-10)

Remote Temperature Sensors:

VST-TSF Dimensions: • Cable length: 9.00"(228 mm)

VST-TSO Dimensions (HWD):

Weight: • VST-TSF: 0.5 lb (0.23 kg)

Terminals with captive-wire connectors that connects the Thermostat, HVAC equipment, control system, remote sensors and power supply. Refer to the Wir- ing the Thermostat section on page 20 for details.

(Servant/Master, Electric/Fossil, Single/Multi, Heat Pump/Heat-Cool). Refer to the Setting the DIP Switch section on page 9 for details.

5.01" x 5.52" x 1.15" (12.72 cm x 14.02 cm x 2.92 cm)

• 24 VAC Suppression Ferrite

• VST-TRH Remote Temperature/Humidity support module (FG944-20)

• VST-TSF Flush-mount indoor remote sensor (FG944-30)

• VST-TSO Duct/outdoor remote sensor (FG944-40)

• Sensor depth: 0.85" (22 mm)

• Sensor diameter: Ø1.50 (Ø38 mm)

• 2.75" x 1.44" x 1.75 (70 mm x 37 mm x 44 mm)

• VST-TSO: 0.75 lb (0.34 kg)

Support Module Specifications

There are two types of support modules available for the ViewStat:

 VS T- TTM Te m per a t ure M o d ul e : The VST-TTM support module offers versatility in climate

control. A set of onboard dip switches on the VST-TTM circuit board allow you to determine whether you want the two remote temperature sensor inputs to control, monitor or do a combination of both. This temperature data is sent back to the ViewStat Thermostat, allowing you to accurately control and monitor temperature in a given area or multiple areas.

 VS T- TRH Te m p er a t ure a n d Hu m i dit y M odu l e : The VST-TRH support module brings further

versatility to the HVAC system. A set of onboard dip switches on the VST-TRH circuit board allow you to determine whether you want the two remote temperature sensor inputs to control, monitor, or both. The temperature/humidity data is sent back to the ViewStat, allowing you to accurately control and monitor temperature/humidity in a given area or multiple areas.

ViewStat Communicating Thermostat

Product Information

The ViewStat supports up to four Support Modules, and can display any one of the following:

 The remote temperature on support module address 1 if its mode is set to "Control".

 The average temperatures of all support modules set to "Control" mode.

 The humidity of the VST-TRH (Temperature and Humidity Module) set to "Control" mode.

VST-TTM and VST-TRH Remote Sensor Specifications

Power supply 18 to 30 VAC or DC (24 V Nominal)

Support Module Dimensions (HWD) 2.50" x 3.50" x 0.88"

(63 mm x 89 mm x 22 mm)

Max. relative humidity 90% (non-condensing)

Temperature:

• Accuracy: Comfort Range: (60°F - 80°F): ± 1°F

Control Range: (40°F - 100°F): ± 2°F

Operating Range: (-40°F - 185°F): ± 3°F

• Maximum Display Range: -40°F - 185°F

Humidity (VST-TRH only):

• Accuracy: Comfort Range: (10% - 45%): ± 3%

Control Range: (10% - 90%): ± 5%

• Maximum Display Range: 0% - 90%

Refer to theSupport Module Installation and Wiring section on page 33 for information on configuring, installing and wiring the support modules and remote temperature sensors.

Maximum Cable Distances

Between the VST and NetLinx or LandMark Controller: 1000’ (304.8m)

Between support module and VST: 1000’ (304.8m)

•Max. cumulative cable length between multiple support modules and VST: 1000’ (304.8m)

Between support module and remote sensor: 300’ (91.44m)

ViewStat Communicating Thermostat

Product Information

HVAC System Pre-Installation Check List

Before getting started, determine what type of heating system is/will be installed in the house. Then use the following table to determine if the proper numbers of wires are available, depending on the HVAC System type.

HVAC System Pre-installation Check List

Application # of HVAC

Wires

Single Stage Furnace & AC 5 FIG. 18 on page 26

Two Stage Furnace & Two Stage AC 7 FIG. 19 on page 27

Roof Top Unit (Two Stage Heat & Two Stage Cool) 7 FIG. 20 on page 28

Boiler with AC (Two Transformers) 5 FIG. 21 on page 29

Single Stage Heat Pump 7 FIG. 22 on page 30

Two Stage Heat Pump 9 FIG. 23 on page 31

First Stage Radiant Floor Heat Second Stage Furnace One Stage of Cooling 6 FIG. 24 on page 32

In addition to the wires necessary to support the HVAC system control, an RJ45terminated Cat5 cable is necessary to support NetLinx or Landmark communications (see theViewStat Installation and Wiring section on page 7 for details).

Wiring Diagram

ViewStat Communicating Thermostat

Product Information

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

This section covers the installation, wiring and checkout of a ViewStat Communicating Thermostat System.

1. 120 volts may cause serious injury from electrical shock. Disconnect electrical power to the HVAC system before starting installation. This system is a low-voltage system.

2. Improper installation may cause serious injury from electrical shock. This system must be installed by a qualified contractor in accordance with NEC Standards and applicable local and state codes.

Disconnecting Power to All HVAC Equipment

Since the ViewStats are wired directly to the HVAC equipment, the power must be shut off at the equipment. This can generally be accomplished by turning off the disconnect switch located near the equipment. If an obvious disconnect switch is unavailable, you will need to remove the circuit breaker or shut down the fuse serving the equipment.

Failure to disconnect power could result in damage to the HVAC equipment or thermostats. Leave power disconnected until all other electrical connections have been made and checked for accuracy.

ViewStat Installation and Wiring

Selecting the Thermostat Location

Determine if the thermostat will be operating alone, or with remote temperature sensors. If the unit is standalone there are certain measures that must be taken to ensure accurate temperature control.

Stand-alone thermostat mounting criteria

 One ViewStat per HVAC system.

 Mount on an interior wall.

 In a room frequently occupied.

 At least 18 inches (45.72 cm) from any outside wall.

 Approximately 5 feet (1.52 m) above the floor. Check with local building codes for height

requirements in commercial applications.

DO NOT locate the thermostat:

 Behind doors, in corners or other dead air spaces.

 In direct sunlight or near lamps, appliances or other sources of radiant heat.

 On an outside wall or wall exposed to an unconditioned space (i.e. garage, etc.).

 In the flow path of a supply register, in stairways or near outside doors.

 On a wall where concealed pipes and/or duct work will affect the thermostat.

 Near sources of electrical interference such as arcing relay contacts.

With remote temperature sensors

Follow the guidelines for placement of the sensors and locate the thermostat indoors where operating range (see specs) will not be violated (i.e. do not install in a cold garage or hot equipment room). See the Support Module Installation and Wiring section on page 33 for details.

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

Removing the Faceplate from the Base

No tools are required to disassemble the thermostat – just use your hands to pull the front panel off of the base (FIG. 2).

FIG. 2 Pulling the front panel off of the base

Loss of internal programs may result from static discharge to thermostat circuit board. Touch a grounded metal object to discharge any static charge before handling the circuit board.

While holding the base of the thermostat, apply pressure to the base of the latch with your thumb (FIG. 3). Both sides have a latch, but it is easiest to unlatch one side at a time.

FIG. 3 Location of latch on base (one latch on each side)

Press base here

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

Setting the DIP Switch

Set the DIP switch located on the thermostat circuit board (FIG. 4) according to the application needs (see the DIP Switch Settings table below for details).

FOSSIL

MULTI

MASTER

OFF

SERVANT

H/C

SINGLE

HT.PUMP

ELECTRIC

FIG. 4 Setting the DIP Switch

The following table shows what each switch corresponds to depending on position. Switch one should be set in the “OFF Servant” position unless you plan to broadcast readings from remote temperature sensors to other thermostats in the system when there is no control system in place.

DIP Switch Settings

Application Switch #1Switch #2Switch #3Switch

Single Stage Furnace & AC Servant Fossil Single H/C

Two Stage Furnace & Two Stage AC Servant Fossil Multi H/C

Roof Top Unit (Two Stage Heat & Two Stage Cool) Servant Fossil Multi H/C

Boiler with AC (Two Transformers) Servant Fossil Single H/C

Single Stage Heat Pump Servant Electric Single HT. Pump

Two Multi-stage Heat Pump Servant Electric Multi HT. Pump

First Stage Radiant Floor Heat, Second Stage Furnace One Stage of Cooling

Servant Fossil Multi H/C

Reassembly

No tools required – line up pins on circuit board with the corresponding terminal blocks. Use your hands to push the front panel securely to the mounted base.

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

(black)

Attaching the MiniVerter to the ViewStat

Before attaching the MiniVerter to the rear of the ViewStat, connect the wiring, as described below:

1. Detach the faceplate from the base of the ViewStat.

2. Pull the stripped/tinned wires through the cutout in the center of the base (FIG. 5).

ommon from 24 VAC HVAC System

Power (red) from 24 VAC HVAC System

Power

Te r mi n al

cutout

jumper from RC to RH

Equipment

Communication Terminal

from Miniverter

FIG. 5 ViewStat base with Communication, Power and Equipment terminals

terminal

Before mounting the ViewStat, you must attach the MiniVerter to the rear panel of the ViewStat, as described below:

1. Detach the faceplate from the base of the ViewStat.

2. Pull the stripped/tinned wires through the cutout in the center of the base (FIG. 5)

3. Connect the communications wiring: a. Blue to B- b. Orange to B+

c. Red/White to A- d. Black/White to A+

4. Connect the power wiring: a. Black to C b. Red to R

5. Install a jumper from RH to RC.

6. Insert the MiniVerter (connector-side first) into the guide-slots located on the bottom of the MiniVerter

mounting bracket (FIG. 6).

7. Slide the MiniVerter back into its locking position in the mounting bracket.

8. With the connector-side of the MiniVerter seated in the guide-slots, gently press the opposite side of the

MiniVerter in and down, to snap it into its locked position on the mounting bracket.

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

ViewStat base (top view)

Insert the MiniVerter

(connector-side down)

inside the mounting bracket.

mounting bracket

FIG. 6 Inserting the MiniVerter into the mounting bracket (top view).

into the guide slots

MiniVerter

Snap into place

Slide the MiniVerter into

locking position in the bracket.

MiniVerter card

Repeated installation and removal of the MiniVerter bracket may result in damage to the bracket.

9. Connect the Cat-5 RJ-45 connector on the MiniVerter to the Control System (Master or ICSNet Hub).

Wiring the VST-TSTAT to a VST-DIST Distribution Panel

The optional VST-DIST Distribution Panel (not included) connects to up to eight VST-TSTAT thermostats, providing a convenient and effective method of wiring multiple thermostats to the control system's RS422 serial interface port.

The VST-DIST provides one RS422 interface to the control system and eight RS422 interfaces for the thermostats.

 Since the VST-DIST provides an RS422 interface to the control system, a MiniVerter (VST-MVRT)

is not required for communication.

 The VST-DIST is intended for use with the VST-TSTAT, and is not intended for use with the VST,

which includes a MiniVerter.

The VST-DIST includes an Instruction Manual from the manufacturer with detailed installation instructions, and a decal on the inside of the front cover (reproduced in FIG. 7) gives wiring information for the panel.

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

Communications

Wire to Protocol Adapter, other Distribution Panels or directly to Automation System A: Transmit B: Receive

REF

Rx+

Rx-

Tx+

Tx-

Switches

A - Allows Transmit

Communications B - Allows Received Communications PWR - Turns power to thermostat on/off

LEDs light when communications are transmitted (A) or received (B)

24VAC

GND

ADDRESS #

Tra ns fo rm er

24 V, 40 VA minimum up to 8 thermostats

C - 24 V (common) (-) if DC R - 24 V (hot) (+ ) if DC

Main Power Switch

Turns main power to Distribution Panel on/off

ADDRESS #

LED will light up when power to thermostat is switched on

FIG. 7 Wiring the VST-TSTAT to a VST-DIST Distribution Panel

Mounting the Base to a Wall

There are four screw holes located on the base of the thermostat; two are for a junction box mounting, along with two for alternate mounting spacing. Use one of the holes on the top and one on the bottom.

1. Place the base over the wire hole opening in the wall; level the base and mark the screw hole mounting

locations (leveling required for appearance only).

2. If using supplied wall anchors, drill 3/16" hole in the center of the marked locations and tap in the wall

anchors. If using the supplied screws only, drill a 3/32" hole in the center of the marked locations.

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

Minimize wire entry hole size and seal – drafts from inside the wall could affect temperature readings.

3. Fasten the base to the wall with the supplied screws.

4. Seal wire entry using caulk, drywall putty or insulation.

Loss of internal programs may result from static discharge to thermostat circuit board. Installer must touch a grounded metal object before handling the circuit board.

Connecting the ViewStat to AMX Control Systems

When a Mini Verter is used the Viewstat has a single RJ-45 jack on the rear panel, and uses ICSNet cabling to connect to NetLinx or Landmark control systems.

The terms "PhastLink" and ICSNet" are essentially interchangeable within the context of cabling/connectors. They both use a standard 10BaseT type connection (i.e. Category 5 wire and RJ-45 connectors), and they share the same pinout information for the RJ-45 jacks. Generally the term "PhastLink" is used when dealing with Landmark, and "ICSNet" is used when describing NetLinx control systems.

The wires should be connected in the standard manner described in the following table. If standard EIA/TIA 568A/B color coding is followed, wiring problems will be minimized.

PHASTLink RJ-45 Pinout Information (EIA/TIA 568 A)

Pin W ire Color Polarity Function

1 White/Green + Transmit

2 Green - Transmit

3 White/Orange - Mic

4 Blue - Ground

5 White/Blue + 12 VDC

6 Orange + Mic

7 White/Brown + Receive

8Brown - Receive

TIA 568A

NetLinx RJ-45 Pinout Information (EIA/TIA 568 B)

Pin W ire Color Polarity Function

1 Orange/White + Transmit

2 Orange - Transmit

3 Green/White - Mic

4 Blue - Ground

5 White/Blue + 12 VDC

6 Green + Mic

7 White/Brown + Receive

8Brown - Receive

TIA 568B

1 2 3 4 5 6 7 8

(female)

1 2 3 4 5 6 7 8

RJ-45 connector pin configurations

(male)

ViewStat Communicating Thermostat

ViewStat Installation and Wiring

It is important that the correct pairing is observed. Transmit, Receive, and Mic need to be on twisted pairs. Splitting pairs (e.g., using a white/green wire with a blue/ white wire for transmit) will result in increased crosstalk, and may result in bus failure or noise on the intercom.

Connecting to an Axcess Control System (via AXC-232++, AXB-EM232, or Axcent3/PRO)

To connect the ViewStat to an Axcess control system via an Axcess Cardframe (cardframe must be equipped with an AXC-232 232/422/485 Control Card), AXB-EM232 Enhanced Master, or Axcent3(PRO) Controller, refer to the card-edge pinout information below:

Axcess System Card Edge Pinouts

Pin Signal Function

1 GND Ground (RS-232)

2 RX Receive data (RS-232)

3 TX Transmit data (RS-232)

4 +12V Power

5 RX - Receive data (RS-422)

6 RX + Receive data (RS-422)

7 TX - Transmit data (RS-422)

8 TX + Transmit data (RS-422)

9 GND Ground

10 CTS Clear-to-send (hardware handshaking)

11 RTS Ready-to-send (hardware handshaking)

12-16 not used

FIG. 8 shows the wiring configuration for Axcess systems:

ViewStat (Communication terminal)

FIG. 8

Connecting the ViewStat to an Axcess Control System

Axcess Control System

AXC-232(++) or AXB-232(++)

ViewStat Communicating Thermostat

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).

ViewStat (Communication terminal)

FIG. 9

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

ViewStat Communicating Thermostat

RS232/422/485 Por t

+ 47 hidden pages

AMX ViewStat User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Product Information

Introduction

System Components

ViewStat Specifications

Support Module Specifications

Maximum Cable Distances

HVAC System Pre-Installation Check List

ViewStat Installation and Wiring

Disconnecting Power to All HVAC Equipment

Selecting the Thermostat Location

Stand-alone thermostat mounting criteria

With remote temperature sensors

Removing the Faceplate from the Base

Setting the DIP Switch

Reassembly

Attaching the MiniVerter to the ViewStat

Wiring the VST-TSTAT to a VST-DIST Distribution Panel

Mounting the Base to a Wall

Connecting the ViewStat to AMX Control Systems

Connecting to an Axcess Control System (via AXC-232++, AXB-EM232, or Axcent3/PRO)

Connecting to an Axcess Master Controller via the RS232/422/485 (DB-9) Port