Toro Lynx SmartHub User manual

Lynx®SmartHub for LSM & GAC
Installation and User Guide (DEC and DAC Series)

Toro’s Commitment to Excellence 3
Introduction 3
Cabinet Installation 4
Wallmount 4
Earth Ground 5
Power Source 6
Pedestal Installation 7
Foundation Construction 7
Earth Ground 8
Power Source 9
Lynx Smart Module (LSM) Installation 10
New System / New Communication Cable 10
GAC Decoder Installation 12
New System / New Communication Cable 12
Existing System with Existing Wiring 14
Grounding the Communication Cable 15
Motherboard Connections 17
Status Sensor 17
Rain Sensor 17
Flow Sensor 17
Master Valve / Pump Relay 17
Communication Cable 18
Communicating with the SmartHub 19
Layout 1 - Local 19
Layout 2 - Wired Lynx 20
Layout 3 - Wireless 20
Radio Communication - FIU to SmartHub 21
Changing the Frequency of the Radio 22
Operation 24
Modes of Operation 24
General Editing 24
Timing Mechanism Components 25
Power-Up Diagnostics 26
Home Button 26
Start Button 27
Pause Button 27
Stop Button 27
SmartHub Settings 28
% (Percent) Adjust 29
Station Settings 30
Scheduled Watering 31
Manual Watering 32
Diagnostics 34
Motherboard Diagnostic Display 37
Checking and Clearing Alarms 37
Specifications 39
Radio 39
Fuse and Circuit Breaker 39
Lynx SmartHub 39
Warranty and FCC Notice 39
2
Lynx® SmartHub Installation and User Guide
Overview: Lynx Radio Repeater

3
Lynx® SmartHub Installation and User Guide
Introduction
Congratulations on purchasing Toro’s Lynx SmartHub for LSM (Lynx Smart Module) and GAC (Golf control module for
AC solenoid) modules.
The SmartHub combines modular flexibility, ease of use and increased programmability in a single controller. The user
interface is easy to use and includes a backlight for improved visibility in low-light conditions, yet it is completely viewable
in direct sunlight. The faceplate’s combination of menu buttons, navigation arrows and input dial allows for easy and
quick menu navigation.
The Lynx SmartHub comes in eight versions:
• DEC-RS-1000-DR (digital radio and modem)
• DEC-RS-1000-M (modem only)
• DEC-RSP-1000-DR
• DEC-RSP-1000-M
• DAC-RS-1000-DR
• DAC-RS-1000-M
• DAC-RSP-1000-DR
• DAC-RSP-1000-M
The Lynx SmartHub satellite controller pedestal is designed for installation on a substantial concrete foundation with
imbedded conduit of various diameters to enable power, field, ground and communication wiring to be routed into the
pedestal for connection. A mounting bolt positioner and basic mounting hardware components are included with each
controller. Additional materials required to complete the installation must be obtained separately. A material list can be
compiled by reading through the instructions completely prior to starting the installation.
!
CAUTION: For your protection and the safety of the product user, comply with all Caution and Warning
statements within this document. All installation practices must comply with all applicable national and/or local electrical
and construction codes.
Toro’s Commitment to Excellence
Toro is committed to developing and producing the highest quality, best performing, most dependable products on the
market. Because your satisfaction is our first priority, we have provided the Toro Helpline to assist you with any questions
or problems that may arise. If for some reason you are not satisfied with your purchase or have questions, please contact
us toll free at 1-877-345-8676.

4
Lynx® SmartHub Installation and User Guide
Wallmount
Selecting the proper installation site for the Lynx
SmartHub is essential to safe and reliable operation. The
SmartHub features a weather resistant cabinet designed
for indoor or outdoor installation.
Install the Lynx SmartHub:
• on a vertical wall or other sturdy structure
• so that the display is at or below eye level
• near a grounded power source
• so that it is in shade during the hottest hours of the
day
• with as much protection from direct sunlight, rain,
wind and snow as possible
!
IMPORTANT! Do not mount the controller
where it is exposed to direct spray from the
irrigation system.
Steps:
1. Drill two pilot holes 6” (15.25cm) apart for the top
keyholes of the controller cabinet.
2. Install the top screws leaving approximately 1/4”
(5–6mm) of exposed screw to accommodate the
cabinet.
If mounting the cabinet on dry wall or
masonry, install the appropriate type of screw
anchors or fasteners to ensure secure
installation.
3. Hang the cabinet using the top keyhole slots.
See Figure 1.
4. Open the cabinet door and install the two bottom
screws to secure the cabinet.
6" (15.25cm)
9 1/8"
(23.175cm)
Figure 1
Cabinet Installation

5
Lynx® SmartHub Installation and User Guide
Power Source
Steps:
1. Turn off the power at the power source location and place the controller’s power switch to OFF. Connect
and route the appropriate size 3-conductor cable (14 AWG [2.5mm2] maximum) from the power source to the
controller cabinet.
The provided power cable access hole can accommodate a 1” (25mm) conduit fitting. If conduit is required, install a
section of flexible 1” (25mm) electrical conduit from the power source conduit box to the cabinet’s access hole.
2. Open the cabinet door and remove the two retaining screws from the power supply cover.
3. Strip the power cables and secure them to the terminal block (Figure 3). Reference Table 1 for the appropriate
type of power connection.
4. Reinstall the power supply cover.
5. Apply power to the controller.
Flexible Conduit
(Optional)
Line
Neutral
Equipment
Ground
See Table 1
Figure 3
WARNING! AC POWER WIRING MUST BE INSTALLED AND CONNECTED BY QUALIFIED
PERSONNEL ONLY.
ALL ELECTRICAL COMPONENTS AND INSTALLATION PROCEDURES MUST COMPLY WITH ALL
APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES. SOME CODES MAY REQUIRE A MEANS
OF DISCONNECTION FROM THE AC POWER SOURCE, INSTALLED IN THE FIXED WIRING, HAVING
A CONTACT SEPARATION OF AT LEAST 3mm IN THE LINE AND NEUTRAL POLES.
ENSURE THE AC POWER SOURCE IS OFF PRIOR TO SERVICING. FAILURE TO COMPLY MAY RESULT IN SERIOUS
INJURY DUE TO ELECTRICAL SHOCK HAZARD.

6
Lynx® SmartHub Installation and User Guide
Foundation Construction
1. Prepare a hole for the foundation and
wiring conduit using the minimum
recommended dimensions shown in
Figure 4.
* Refer to local electrical codes for
required depth of buried wiring .
2. Trench to the foundation site as
required for each wiring run.
3. Position straight and sweep elbow
conduit sections in foundation hole
as shown. Tape the conduit ends to
seal out dirt. Backfill soil to form a 6”
(15.2cm) foundation depth. Conduit
should not extend more than 2”
above the finished top surface of the
foundation.
4. Prepare the sides of the foundation
hole with wood forms.
5. Prepare the mounting bolt positioner
with the 5/16 x 4-1/2” bolts and nuts
(provided) as shown in Figure 3. The
threads should extend 2” (51mm)
from the top surface of the bolt
positioner.
6. Pour concrete into the formed
foundation hole. Press the mounting
bolt positioner into the concrete
until it is flush and level with the
foundation surface and aligned with
the conduit.
7. Finish the concrete with a level flat
area for the pedestal base (13” x 13”
[33cm x 33cm] for the metal pedestal
or 16” x 16” [41cm x 41cm] for the
plastic pedestal). To prevent pooling
at the base of the pedestal, add a
slight taper away from the pedestal
base contact area. Allow concrete to
sufficiently harden before continuing.
8. Remove the hex nuts from the
mounting studs. Carefully position the
controller onto the studs. Install a flat
washer and a hex nut on each stud and
tighten securely.
Wood Form
Figure 4
3” (76mm) – Field
(32 Stations Each)
Mounting Bolt Positioner
3/4” (19mm) – Earth Ground
3/4” (19mm) – Communication
FRONT
(Conduit Recommendations)
30”
(76cm)
Plastic Pedestal Base Area
(Optional) 3/4” (19mm)
Antenna/Telephone Cable
3/4” (19mm) – Power
2” (51mm) Maximum
30”
(76cm)
Taper
See *
2”
(51mm)
6” (15.2cm)
Mounting Bolt
Positioner
Pedestal Installation

7
Lynx® SmartHub Installation and User Guide
Earth Ground
!
IMPORTANT! The Lynx SmartHub surge
protection components cannot properly function
unless an efficient pathway to earth ground is
provided. The ground path must be as direct as
possible, without sharp bends and should not exceed
10 Ohm resistance (when measured with an earth
ground resistance device). All electrical components
throughout the irrigation system should be grounded
similarly to provide the same ground potential.
The following instructions depict one of several acceptable
earth grounding methods. Due to variables in soil
composition and terrain, the method shown may not be
suitable for your installation site. Contact your local Toro
distributor for assistance and availability of the required
earth ground resistance test instrument. Recommended
ground testers are: AEMC Instruments, model 3710
clamp-on tester, or Biddle Megger, model 250260
(or equivalent).
Procedure
1. Drive a 5/8” by 8’ (17mm x 2.5m) copper clad steel rod
into well moistened soil not less than 8’ (2.5m) or not
more than 12’ (3.7m) from the controller cabinet (see
Figure 5 and 6). The top of the ground rod should be
flush with or below ground level, and should be protected
from damage using a valve box ( A).
2. Measure the ground resistance per the instructions
provided with the ground test instrument.
• If reading is 10 ohms or less, proceed to step 4.
• If reading is greater than 10 ohms, proceed to step 3.
3. Install a 4” by 96” (10cm x 2.5m) copper ground plate.
The plate should be at least .06” thick (1.5mm) and
should have a 6 AWG x 12’ (10mm² x 4m) solid copper,
insulated wire welded to the plate. The plate should
go into a trench that is at least 30” (80cm) deep ( B
). Use ground enhancement material (GEM) per the
manufacturer’s directions.
4. Using a 5/8” (17mm) clamp or exothermic-weld fastener,
attach an 8 AWG (10mm²) solid copper wire near the top
of the ground rod.
5. Route the wire through conduit and into the controller
cabinet, avoiding wire bends of less than 8” (20cm)
radius and more than 90° ( C). Secure the wire to the
copper ground lug in the controller.
6. Measure the ground resistance again. A reading of
10 ohms or less is recommended.
A
B
C
Figure 5
Make sure the soil surrounding the ground
rod and plate remains well moistened at
all times. The addition of some form of
irrigation may be required if the controller is
installed in a non-irrigated location.
grounding rod no sharp bends
valve box
grounding lug
grounding plate
30” (80 cm) trench
12” (30 cm) trench12” (30 cm) trench

8
Lynx® SmartHub Installation and User Guide
8’ (2.4m)
8’ (2.4m)
8’ (2.4m)8’ (2.4m)8’ (2.4m)
No solenoid, power, or
communication cables
within this zone.
pedestal or
gateway
concrete pad
grounding rod grounding plate
Figure 6

Power Source
1. Turn off the power at the power source location and place the controller’s power switch to OFF. Connect and route
the appropriate size 3-conductor cable (14 AWG [2.5mm2] maximum) from the power source to the controller
pedestal.
The provided power cable access hole can accommodate a 1" (25mm) conduit fitting. If conduit is required, install a
section of flexible 1" (25mm) electrical conduit from the power source conduit box to the pedestal’s access hole.
2. Strip the power cables and secure them to the terminal block. Reference Table 1 and Figure 7 for the appropriate
type of power connection.
3. Reinstall the power supply cover.
4. Apply power to the controller.
WARNING!
AC POWER WIRING MUST BE INSTALLED AND CONNECTED BY QUALIFIED PERSONNEL ONLY.
ALL ELECTRICAL COMPONENTS AND INSTALLATION PROCEDURES MUST COMPLY WITH ALL
APPLICABLE LOCAL AND NATIONAL ELECTRICAL CODES. SOME CODES MAY REQUIRE A MEANS
OF DISCONNECTION FROM THE AC POWER SOURCE, INSTALLED IN THE FIXED WIRING, HAVING
A CONTACT SEPARATION OF AT LEAST 3mm IN THE LINE AND NEUTRAL POLES.
ENSURE THE AC POWER SOURCE IS OFF PRIOR TO SERVICING. FAILURE TO COMPLY MAY
RESULT IN SERIOUS INJURY DUE TO ELECTRICAL SHOCK HAZARD.
9
Lynx® SmartHub Installation and User Guide
Figure 7

New System or New Communication Cable
Lynx Smart Modules are available in 1-station configurations.
The SmartHub pedestal and cabinet can handle up to 1000 modules or 1000 stations each. The SmartHub with Lynx
Smart Modules (LSMs) can accommodate up to two daughterboards with two output circuits. Each daughterboard
can handle up to 500 modules and stations. The modules can be connected in parallel anywhere on the two-wire
communication line connected to the station terminals. Each cable path can handle up to 250 modules and stations. Each
station can activate up to two solenoids.
It is recommended that the modules are installed in an approved valve box to provide easy access to the wiring.
Use approved splice to waterproof all connectors.
Recommended Controller-to-Module cable: 14 AWG (2.1 mm2), solid copper, jacketed 2-conductor, direct burial.
Recommended Module-to-Solenoid cable: 14 AWG (2.1 mm2), solid copper, 2-conductor, direct burial.
Burial Depth
Toro recommends that the Controller-to-Module and Module-to-Solenoid cables should have a minimum cover of 6"
(150mm). The irrigation plan may specify additional depth to be consistent with the depth of mainline or lateral pipe work
and/or soil conditioning procedures such as aeration. Installation procedures must comply with all applicable local and
national electrical codes.
• Use only wire approved for direct burial if installing the wires underground without conduit.
• All field wiring splices must be accessible to facilitate troubleshooting and/or service.
Steps:
1. Route communication cable from the controller to the station module installation location.
The maximum wire length between the controller and the module is 15,000' (4500 m).
2. Secure the communication wires to terminal 1 of the SmartHub output board. White wire onto the 1st terminal and
black wire onto the second terminal. See Figure 8.
3. Install the module in a valve box. Record the module’s address number found on the side label. This address number
identifies the station(s) that the module control.
4. Secure the communication wires to the module’s black and white wires.
Connect the black communication wire to the black module wire.
Connect the remaining communication wire (red or white) to the white module wire.
Use approved splice to properly water-proof all wire connections.
5. Route output wires from the module to the solenoid.
The maximum wire length between the module and the solenoid is 410' (125m) for 14 AWG (2.5mm2) wire.
6. Connect the solenoid wires to the module’s station wires. The station wires are color coded for easy identification.
Connect the solid red colored station wire to the red/white solenoid wire.
Connect the similar color station wire with black stripe to the black solenoid wire.
Use approved splice to properly water-proof all wire connections.
7. Connect an additional solenoid to the station wire as necessary.
Each station has a maximum load of two solenoids.
8. Repeat Steps 3–8 for additional modules.
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Lynx® SmartHub Installation and User Guide
Lynx Smart Module

1 2 3 4
Maximum communication
wire length between the
controller and the farthest
module is 15,000' (4,500 m).
White White
Black Black
White White
Black Black
The maximum communication wire length
between the module and the solenoid is
410' (125m).
Recommended Cable for Module-
to-Solenoid: 14 AWG, Solid Copper,
2-Conductor, Direct Burial cable.
To easily identify stations for
troubleshooting, install wires with the same
color code as the station wires.
Each station can activate
up to two DC Latching
Solenoids.
Out to additional
modules
Station Wires
The Lynx SmartHub output board can accommodate two
cable paths with up to 250 stations each.
1-Station
Module
Recommended Cable for Controller-to-Decoder is 14 AWG,
Solid Copper, Jacketed 2-Conductor, Direct Burial cable.
Figure 8
Daughterboard
LSM with hard-wired solenoid
Black and white
control wires to black
and white control
wires from controller.
INFINITY w/ LSM FLEX800 w/ LSM
P220 valve w/ LSM
11

New System or New Communication Cable
AC station decoder modules are available in 1-station, 2-station, 4-station configuration or a Toro golf sprinkler with an
integrated 1-station decoder.
The SmartHub pedestal and cabinet can accommodate either two or four daughterboards. An expansion unit is required
to install the 2nd daughterboard. Each daughterboard has two output circuits. Each output circuit can handle up to 125
decoder modules (250 modules per daughterboard then) and 500 stations. The decoder modules can be connected in
parallel anywhere on the two-wire communication line connected to the station terminals. Each station can activate up to
two solenoids.
It is recommended that the decoder modules are installed in an approved valve box to provide easy access to the wiring.
Use approved splice to waterproof all connectors.
Recommended Controller-to-Decoder cable: 14 AWG (2.5mm2), solid copper, jacketed 2-conductor, direct burial.
Burial Depth
Toro recommends that the Controller-to-Decoder and Decoder-to-Solenoid cables should have a minimum cover of
6” (150mm). The irrigation plan may specify additional depth to be consistent with the depth of mainline or lateral pipe
work and/or soil conditioning procedures such as aeration. Installation procedures must comply with all applicable local
and national electrical codes.
• Use only wire approved for direct burial if installing the wires underground without conduit.
• All field wiring splices must be accessible to facilitate troubleshooting and/or service.
Steps:
1. Route communication cable from the controller to the station decoder module installation location.
The maximum wire length between the controller and the decoder module is 6,800’ (2072 m).
2. Secure the communication wires to terminal 1 of the SmartHub output board. Black wire onto the 1st terminal and
Red wire onto the second terminal. See Figure 9.
3. Install the decoder module in a valve box. Record the decoder module’s address number found on the side label.
This address number identifies the station(s) that the decoder module controls.
4. Secure the communication wires to the decoder module’s black and red wires. Connect the black communication
wire to the black decoder module wire. Connect the remaining communication wire (red) to the red decoder
module wire. Use approved splice to properly water-proof all wire connections.
5. Route output wires from the decoder module to the solenoid.
The maximum wire length between the decoder module and the solenoid are 400’ (122m) for 18 AWG wire
and 575’ (175m) for 16 AWG wire.
6. Connect the solenoid wires to the decoder module’s station wires. The station wires are color coded for easy
identification (Station 1 = Violet, Station 2 = Yellow, Station 3 = White, Station 4 = Orange and Common Wire
= Brown). Connect the solid colored (violet, yellow, white or orange) station wire to one of the solenoid wire.
Connect the similar color station wire with black stripe to the remaining solenoid wire. Use approved splice to
properly water-proof all wire connections.
7. Connect an additional solenoid to the station wire as necessary.
Each station has a maximum load of up to two solenoids.
8. Repeat Steps 3–8 for additional decoder modules.
12
Lynx® SmartHub Installation and User Guide
GAC Decoder Installation

The maximum communication wire length
between the decoder module and the
solenoid is 575' (175m).
Recommended Cable for Decoder-to-
Solenoid is a Solid Copper, 2-Conductor,
Direct Burial cable.
To easily identify stations for
troubleshooting, install wires with the same
color code as the station wires.
Daughterboard
Valve Common
Brown Wire: Connect to one of the wires from
each of the four solenoids.
Station 1
Violet Wire: Connect to one of Station 1’s solenoid wires.
Station 2
Yellow Wire: Connect to one of Station 2’s solenoid wires.
Station 3
White Wire: Connect to one of Station 3’s solenoid wires.
Station 4
Orange Wire: Connect to one of Station 4’s
solenoid wires.
Red Power/Communication Wire
Black Power/Communication Wire
Output
Circuit #1
AC Solenoid
Black
Black
Each station can activate up to 2 solenoids.
(See valve compatibility for details.)
Out to additional
decoder modules
Station Wire
Valve Common Wire
Each output circuit can accommodate up to
125 Decoder Modules.
1-Station
Decoder
Module
Maximum communication wire length
between the controller and the farthest
decoder is 2,072m (2.5mm2).
Output
Circuit #2
Black Black
Red Red
Black Black
Red Red
Figure 9
When possible, install the
decoder module in a valve
box for ease of service.
Recommended Cable for Controller-to-Decoder is 14 AWG, Solid
Copper, Jacketed 2-Conductor, Direct Burial cable.

Upgrade of Existing System,
Using Existing Wiring
Communication Cable Type
Should be 2 or 3 copper conductors, solid or stranded,
with PE pr PVC insulation, rated for at least 600V. For
3-conductor cables, the third conductor will not be used
and any exposed ends must be capped and sealed with an
approved splice.
Communication Cable Length
The maximum wire run from the SmartHub to the farthest
decoder is 6800’ (2072 meters) for 14 AWG (2.5mm2) cable.
The total amount of wire path is 14,000’ (4267 meters) for
14 AWG (2.5mm2) cable.
Resistance
The maximum resistance of the wire path with the end
shorted can be 37.7 Ohms. The minimum resistance of the
wire path with the end open should be 1000 Ohms.
Noise
For the wire path to be tested, disconnect from the DIU (or
other controller), connect an oscilloscope across the wire
path, and power up the pump and any other equipment
that would be running when watering. Measure the voltage
across the open wire path. It should be less than 1 V p-p.
Short Circuits
After the GAC decoders are installed, measure the
resistance across the two open wire path wires to insure
that it is still greater than 1000 Ohms to insure that no
shorts were introduced during the installation process.
Communication Cable to Power Cable Spacing
This recommendation applies to GAC communication
installation. This minimum spacing to any power cable
should be maintained to minimize the possibility of
electrical interference which could affect the integrity of
the GAC communication to decoders. If there are power
cables already installed running next to the communication
cables that do not meet the minimum spacing, remdiation
will be required to meet the minimum spacing listed in
Table 2 below.
Table 2
Power Cable Circuit
Rating
(Minimum KVA*)
Recommended Minimum
Spacing**
0-3 6 inches (15 cm)
3-10 12 inches (30 cm)
10-20 24 inches (60 cm)
20-50 36 inches (90 cm)
50-100 48 inches (120 cm)
>100 60 inches (150 cm)
*Maximum voltage x current rating of circuit
**These are minimum spacing recommendations
to minimize noise coupling. There may be greater
separation required by safety agencies or local codes.
Decoder to Sprinkler Wires
Wire Type - Should be copper conductors, solid core, with
PE or PVC insulation, rated for at least 600V
Wire Length
For 16 AWG or 1.5mm2 – Maximum length is 575 feet
(175m)
For 18 AWG or 0.9mm2 – Maximum length is 400 feet
(122m)
Decoder Module Installation
Remove an old decoder by cutting out the old splices. Make
sure to cut the communication wires and station wires back
to remove any green or corroded copper. Strip the wires
and connect a new decoder module per Figure 4. All splices
must be made with approved splice kits.
Valve Compatibility
Toro Golf VIH (Solenoid 89-1905 or 118-0248)
at 150 PSI
400ft (122m) Max Solid Core, 18 AWG
or 0.9mm2 Cable 2.3 Ohms/Conductor
(400ft), 1 per Output
575ft (175m) Max Solid Core, 16 AWG
or 1.5mm2 Cable 2.3 Ohms/Conductor
(575ft), 2 per Output
Toro 252 Valve (Solenoid 102-1905 or 118-0248)
at 150 PSI at AC Decoder, 1 per Output
Toro 220 Valve (Solenoid 102-0927) up to 220
PSI (passing is 150 PSI) at AC Decoder,1
per Output
Toro 216 Brass Valve (Solenoid 89-1673), Up
to 220 PSI (passing is 150 PSI) at AC
Decoder, 1 per Output
Rain Bird Green Golf VIH Solenoid at 150 PSI
200ft Max Solid Core, 18 AWG or 0.9mm2
Cable 1.2 Ohms/Conductor, 1 per Output
328ft Max Solid Core, 16 AWG or 1.5mm2
Cable 1.2 Ohms/Conductor, 2 per Output
Rain Bird DV Solenoid (Black Wires) at 150 PSI at
AC Decoder, 1 per Output
Rain Bird PGA/PESB Solenoid (White Wires) at 150
PSI at Decoder, 1 per Output
14
Lynx® SmartHub Installation and User Guide

(for both AC and DC decoders)
The lightning arrester (Toro P/N DEC-SG-LINE) is required
to protect the decoder module from lightning. Without
lightning arresters, decoders are vulnerable to lightning damage.
For these arresters to discharge lightning energy efficiently, they
must be properly grounded. To be effective, a resistance of 10
Ohms or less is recommended at each earth ground point. If
the resistance with a single ground rod or plate is greater than
10 ohms, a second ground plate should be added. Figure 10
illustrates the proper grounding and wiring of the arrester.
1. Locate decoder’s power/communication wires (black and
white wires).
2. Strip the insulation from lightning arrester’s white wire
and connect it to the white wires from the decoder and
controller-to-decoder cable. Use approved splice to
properly water-proof all wire connections.
3. Strip the insulation from lightning arrester’s black wire
and connect it to the black wires from the decoder and
controller-to-decoder cable. Use approved splice to
properly water-proof all wire connections.
4. Connect the lightning arrester’s ground wire to the ground
rod or plate’s wire. If the ground rod or plate is not pre-
wired, use a 10 AWG bare copper wire.
5. Drive a 5/8” by 8’ (17mm x 2.5m) copper clad steel rod
into well moistened soil not less than 8’ (2.5m) or not more
than 12’ (3.7m) from the controller cabinet (Figure 6).
For 2-Wire systems, install the ground rod adjacent to the
communication cable (Figure 10). The top of the ground
rod should be flush with or below ground level, and should
be protected from damage using a valve box ( A ).
6. Using a 5/8” (17mm) clamp or exothermic-weld fastener,
attach an 8 AWG (10mm²) solid copper wire near the top
of the ground rod.
7. Measure the ground resistance per the instructions
provided with the ground test instrument. A reading of 10
ohms or less is recommended. If the resistance is greater
than 10 ohms, proceed to step 8.
8. Install a 4” by 96” (10cm x 2.5m) copper ground plate. The
plate should be at least .06” thick (1.5mm) and should have
a 6 AWG x 12’ (10mm² x 4m) solid copper, insulated wire
welded to the plate. The plate should go into a trench that
is at least 30” (80cm) deep ( B ). Use ground enhancement
material (GEM) per the manufacturer’s directions.
Connect the ground wire from the ground plate to the
ground rod installed in step 5.
15
Lynx® SmartHub Installation and User Guide
Grounding the Communication Cable

D
A
B
C
See Detail A
Golf Sprinkler with Decoder
Detail A
Maximum of 1000' (300 m)
of populated communication line
between ground points
A = 500' (150m) Max
B+C = 500' (150m) Max
D = 1000' (300m) Max
Figure 10
For upgrades of existing systems, we
recommend adding one ground point
(Detail A) at the end of each main
communication line.
valve box
black
white
DEC-SG-LINE
grounding rod
No solenoid cables
or decoder modules
within this zone.
8’ (2.4m) 8’ (2.4m) 8’ (2.4m)
8’ (2.4m)
16
Lynx® SmartHub Installation and User Guide

Before connecting any type of sensor, be sure the controller has been powered down.
Status Sensor
The Lynx SmartHub controller is designed to accept both a normally-open and normally-
closed status switch. For axample, a pressure switch may be connected to this sensor input
to detect pressure over a maximum value.
1. Route the status switch cable into the controller.
2. Connect the cable wires to the status switch terminals labeled Ain Figure 11.
3. Place the controller’s switch to ON.
Rain Sensor
LSM systems can use either a rain bucket or a normally-open / normally-closed rain
switch. GAC systems can use only a normally-open / normally-closed switch.
1. Route the rain sensor’s cable into the controller.
2. Connect the cable wires to the Rain Sensor Terminals labeled Bin Figure 11.
3. Place the controller’s switch to ON.
Flow Sensor
LSM systems can use either a Badger Meter / Data Industrial series 200 insertion type flow
sensor or a Bermad 900 series flow meter.
1. Route the flow sensor’s cable into the controller.
2. Connect the cable wires to the Pressure Sensor Terminals labeled Cin Figure 11.
Red wire to the +terminal, black wire to the -terminal.
3. Place the controller’s switch to ON.
Master Valve / Pump Relay
The Lynx SmartHub provides an output to control a master valve or pump relay. The
output is active when any station is on, and off otherwise. Stations defined as switches do
not cause the output to activate.
1. Connect the Positive/Hot wire of the power source that controls the master valve or
the pump relay to the Master valve/Pump relay switch terminal. See Figure 11, D.
2. Route another wire from the Master Valve / Pump terminal and connect it to the
master valve solenoid or pump relay.
3. Connect the Negative/Equipment ground wire of the power source to the master
valve solenoid or pump relay.
4. Place the controller’s switch to ON.
A
B
FLOW
C
D
-+
ENTER
GW SYNC
GW SYNC Active
PUMP Disabled
GW SYNC Active
RAIN Sensor Disabled
PUMP Active
GW SYNC Disabled
RAIN Sensor Active
GW SYNC Disabled
PUMP RAIN
A
B
C
D
Jumpers must be in:
• lower position for sensor operation
• upper position for
GW SYNC operation
Figure 11
17
Lynx® SmartHub Installation and User Guide
Motherboard Connections

Communication Cable
Please note the following communication cable installation requirements and suggestions:
• The remote SmartHub is designed for use with
shielded, twisted-pair, communication cable. Toro
recommends R7162D or equivalent.
• More than one cable run can be connected to the Surge
Protection Unit (SPU, part #35-7353).
• A remote SmartHub communication cable can emanate
from another remote SmartHub connection.
• If additional communication cable runs are installed for
future system expansion, each cable wire pair must be
terminated with a 600 ohm resistor (Figure 15).
• If the communication cable is routed in the same
trench as main power wires, or the SmartHub to
decoder module cables, a minimum of 12” (30.5cm)
separation is recommended to prevent voltage
induction on the communication cable. Check local
codes for actual requirements.
• Refer to the installation instructions provided with the
central control system for communication cable testing
procedures.
• If in-ground cable splices or repairs are required,
the connection must be properly insulated with a
waterproof splicing device. Using an appropriate
splicing kit, such as Scotchcast 82-A1 (or equivalent),
is recommended. Placing the cable splice in a small
valve box for protection and accessibility is a good
installation practice.
Steps:
1. Starting at the Surge Protection
Unit (SPU, part #35-7353), route
the communication (comm)
cable to each SmartHub leaving
enough cable at each location to
enable connection. See Figure
12.
If additional communication
cable is installed for future
system expansion, connect a
600 ohm resistor across the
wire pair at the end of the cable
as shown in Figure 13.
2. At the SmartHub, cut the
cable and pull both ends into the SmartHub
through the 3/4” (16mm) sweep conduit.
3. At the cable ends, strip the outer jacket and
inner insulation to expose the comm wires.
• SmartHub connection: Attach a Phoenix
3-hole connector.
• SPU connection: Attach a Phoenix 3-hole
connector.
• FIU connection: Attach a RJ-11
connector.
4. For the SmartHub, plug comm line into the
modem port (Figure 14).
Remove the modem wire connector(s) until
the comm cable has been tested. Refer
to the installation instructions provided with
the Central controller for testing
procedures.
Figure 13
600 Ohm
Resistor
Figure 12
SmartHub
SPU
See Note
18
Lynx® SmartHub Installation and User Guide
Figure 14

19
Lynx® SmartHub Installation and User Guide
A personal computer running Toro’s “Lynx” software is necessary to communicate with the Lynx SmartHub. The
SmartHub allows Lynx software to control over 9,000 sprinkler heads with individual precision.
The Lynx computer is attached to a Field Interface Unit (FIU) which sends commands to the SmartHubs throughout the
golf course.
There are two ways for the FIU to communicate with SmartHubs: by Wireline or by radio. This document shows three
typical layouts making use of one or both methods.
For the purposes of the layouts, the pedestal and cabinet Smart Hubs are interchangeable with each other.
Layout 1 - Local
The SmartHub is attached to the Field Interface Unit by a Wireline. The SmartHub typically resides in the office with the
Lynx computer and FIU.
GDC-200
– +
HOME
%ADJUST START PAUSE/
RESUME
STOP SYSTEM
SETTINGS
MANUAL
WATERING
SCHEDULED
WATERING
DIAGNOSTICS STATION
SETTINGS
GDC-200
– +
HOME
%ADJUST START PAUSE/
RESUME
STOP SYSTEM
SETTINGS
MANUAL
WATERING
SCHEDULED
WATERING
DIAGNOSTICS STATION
SETTINGS
FIU SmartHub 1
FACE PLATE
(not to scale)
FRONT BACK
SmartHub 2
MENU
POWER
AUTO
+
-
LYNX
Local
Connect RJ11 cable to L1 of
the FIU and face plate.
FRONT BACK
RED
GREEN
Gray wire to green terminal.
Yellow wire to red terminal. Plug wireline into modem port
on back of the Lynx SmartHub.
Communicating with the Lynx SmartHub

20
Lynx® SmartHub Installation and User Guide
Layout 2 - Wired Lynx
The Field Interface Unit is attached to the SmartHub which is out in the field. Due to this distance (see note below), a
Surge Protection Unit (SPU) is necessary on both ends of the cable run.
FIU SPU SPU
wireline
wireline to pedestal bypasses SPU
GDC-200
– +
HOME
%ADJUST START PAUSE/
RESUME
STOP SYSTEM
SETTINGS
MANUAL
WATERING
SCHEDULED
WATERING
DIAGNOSTICS STATION
SETTINGS
ON
12 3 4
ON
12 3 4
MENU
POWER
AUTO
+
-
LYNX
SmartHub 1
SmartHub 2
Wired Lynx
1 2 3
The Wireline connection is limited to about 9 miles.
Layout 3 - Wireless
The Lynx SmartHub DEC-RS-1000-DR (digital radio and modem) communicates with the Lynx computer via radio. The
system is preconfigured at our production facility.
ON
12 3 4
ON
12 3 4
ON
1234
ON
1234
FIU
SmartHub 1
SmartHub 2
SmartHub 3
RF
GDC-200
– +
HOME
%ADJUST START PAUSE/
RESUME
STOP SYSTEM
SETTINGS
MANUAL
WATERING
SCHEDULED
WATERING
DIAGNOSTICS STATION
SETTINGS
MENU
POWER
AUTO
+
-
LYNX
Wireless
Radio
Set CD jumper for
method of communication.
•MODEM: jumper on left two pins.
•RADIO: jumper on right two pins.