Hunter Control System Design Guide - Hunter Industries

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Maintenance Radio: Maintenance Radioallows a handheld Two-Way radio (walkietalkieTRNR) to remote control individualstations at the Field Controllers. The operatorcan also include a run time for activatedstations, start individual programs or presets,step sequentially through stations, and perform othertasks without actually visiting the Field Controller.Radio Field Controllers are automatically equippedwith Hunterʼs Straight Talk Maintenance Radiocapability. They use the same radio and antennaprovided for central communicationsto respond directly to thehandheld Two-Way radio.For hardwire controllers, MaintenanceRadio commands arereceived (and confirmed) at theTriSend central interface, then retransmittedto the field over the GCBLcommunications cable to the appropriateField Controller. The computer does not needto be switched on for Maintenance Radio tofunction.Straight Talk toRadio ControllerMaintenance Radio throughTriSend for hardwireThe system operator does not need to remember which controllers are hardwired and which areradio to operate Maintenance Radio. The operator addresses the specific controller by number,and the TriSend will recognize whether the signals are for hardwired controllers or not.Maintenance Radio may be added to a hardwire-only central in kit form at any time after theinitial installation.The Maintenance Radio through the central electronics use the same radio module and baseantenna (RA5M) normally used to contact radio Field Controllers.For the most up-to-date product information, please refer to our web site www.HunterIndustries.com.8
Controller System Design GuideHardwire CommunicationsHardwire Field Controllers are the same as standalone Field Controllers, with the addition of ahardwire communications board.The communicationscable (GCBL) connectsthe Field Controllers toone another, and to thecentral computer, throughthe central interface.GCBL communications cable iscomposed of two 18AWG twistedpairs, shielded, and the foil shield is to begrounded at each end. Armored cable is alsoavailable (GCBLA) for maximum resistance torodent and installation damage.You may run up to 10,000 feet (3000 meters)of GCBL between Field Controllers. You mayhave any number of Field Controllers in a leg(up to 999 maximum per system).Simple hardwire installationA chain of controllers connected by the communications cable (GCBL) is called a “leg”. Twoseparate legs can be wired from the central interface to the field.The legs do not connect to each other, and no special termination is required at the end of a leg.Hardwire with multiple splits(at first controller in each leg)You can also “split” either (or both) of the legs at the first Field Controller in a leg. This allowsthe most cost-effective route to each Field Controller, by allowing the four shortest possible wireruns. The communications is split at the terminal strip, on the hardwire communications boardinside the Field Controller – never splice the cable itself.RA5M is connected to the TriSend central interface with coaxial radio cable (RG850NFNF). Thecable is also supplied with appropriate connectors, usually type “N female” standard radio connectors.For the most up-to-date product information, please refer to our web site www.HunterIndustries.com.9
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Page 14 and 15: The location of the central compute
Page 16 and 17: Modem Central SystemsModem central
Page 18 and 19: Charts (continued)American WireGaug
Page 20 and 21: Charts (continued)To use the Table
Page 24: ®Hunter Industries Incorporated

Hunter Control System Design Guide - Hunter Industries

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