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. i <br /> � , � • II <br /> Store and Forward !, I <br /> � To augment instailations that do not have 100%radio i <br /> Model 1708 and 1716 RTUs can rebroadcast data coverage from the central office,any RTU can relay � ', <br /> i sent from other RTUs and the Model 1700 controller. information between the Model 1700 controller and an I <br /> � (Conventional orTrunked Radio on/y) out of range RTU. i I <br /> User Configurable <br /> Features such as key delay,channel busy indication, Zetron SCADA can operate on simplex,half-duplex, <br /> I/O parameters are all definable by the user. full-duplex,trunking or conventional radios,and <br /> through repeaters. , <br /> �! Optional MODBUS Firmware The system can use licensee free radios that result in ' <br /> ! The M1708 and M1716 RTUs can communicate a faster exchan e of data between the PC or PLC and �i <br /> 9 � <br /> i with spread spectrum radios via the RS-232 ports . the RTUs. It also eliminates the need for a M1700 ' �i <br /> interface. I <br /> All Call II <br /> A second ID number can be assigned to a group or Allows for the rapid control of a large number of RTU's ' <br /> outputs. This is ideal for siren control. I I <br /> � groups of RTUs I �i <br /> I <br /> Trunked Operation <br /> Since each Remote has its own unit number,a single <br /> A software switch enables the SCADA system to trunking ID code is all the Zetron SCADA needs. <br /> operate over trunked radio systems. Trunked system operators can now offer their I <br /> customers security and control functions. I <br /> ' Fast,Accurate Reporting I <br /> The FFSK protocol operates on any voice radio(true <br /> All communications are two-way using fast di ital or NRZS modulation ca abilit is not re uired . <br /> 9 P Y q ) <br /> frequency shift keying, FFSK. Each data burst lasts This eliminates the falsing common to DTMF and <br /> less than a second, yet contains all the data, plus minimizes usage of valuable airtime. ; <br /> � an advanced error detection scheme. ; <br /> I,, I <br /> �— ----- ----- ----------- ------ ---� <br /> __.--_--- — —--- <br /> . FLEXIB�E COMMUNICATIONS OPTIONS <br /> � <br /> ": Local RS-232 <br /> i/ \ ��ya�,� �_� ' �? � <br /> y��n � hµ 1 �3'�.` � .i i <br /> �' �- MQDBUS Protocol `� _ <br /> r <br /> Wireless Spread Spectrum Centrdl COtltfOl PC � Direct Wireline <br /> � '� � �R�, <br /> , / �� <br /> 1 <br /> � ' � � <br /> � . <br /> �w. � �.��� � <br /> RTU=Model 1708 and/or Model 1716 <br /> Conventional/Trunked Radio <br />