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Lynx® SmartHub Installation and User Guide
Lynx Smart Module
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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