Adcom A723, A720 manual Installing the base station, Installing the receiver

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CHAPTER 2

Using the Base Station

Make sure you’ve received all the equipment and read through the instructions that follow. When you’re sure you understand them, you’re ready to install your base station.

Installing the base station

The following considerations are important to installation:

•From a radio perspective, the height of the receiving antenna is essential—the higher the antenna, the greater the communication range. In the case of the addIT devices, the antenna is built-in; therefore, the entire unit must be mounted as high as possible. A roof is an ideal location.

•Put the base station in the location most convenient to where you work, but keep in mind that, geographically, it is better to have it in the center of the area where the transmitters will be installed.

•Do not put the base station in places like cellars, near heat sources, or in damp locations.

•Make sure you have a telephone connection next to the PC for those times when you need technical support.

Installing the receiver

The receiver communicates over an RS485 interface. The receiver and the RTU look very much like, except that the receiver has only one connector, which links the receiver to the power supply.

Figure 1 illustrates the addIT receiver.

TO

POWER

SUPPLY

Figure 1. addIT Receiver

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Contents ADC N ADC N Contents Contents Introduction What are addIT devices?Installation issues Conventions ItalicsChapter Using the Base Station Opening the packagesInstalling the base station Installing the receiverInstalling the power supply AddIT Power SupplyReplacing the fuse Conﬁguring the softwareUsing the RTU Installing the RTU Shows an addIT RTUShows what a typical RTU ﬁeld installation looks like More about the LED tool Maintaining and servicing the RTU RTU batteryConﬁguring an addIT RTU in the addVANTAGE software Changing the battery Chapter Chapter Performing Advanced Functions Receiver connector Understanding connectorsDevice series RTU connectors Pins on an I/O Connector Top ViewAddIT RTU Power Connector Top View Conﬁguring the devicesSerial communication protocol General format of a commandGeneral format of an answer Series 1 devices Using terminal commandsSET Ownid nnnn SET PMP 63 SET OwnidSET PMP bl bh SET Slot 3600SET Freq 467112500 SET Freq freq stepSET Rssi value Querying the actual conﬁguration parameters SET RssiSeries 2 and 3 devices CmdsFreq FreqFreq 433925000 Freq 433925000 25000Slot PMP 193 CM 1 PMP 65 72193 cm SSTDEV ReplDEL Repl 5667DEL Dd mm yyyy hh mm ss si ft d1 d2 ... dn dd mm yyyy Data 5666 12/12/1998Data b1 b2 b3 ... bn Dn csFrame 38 description Data 6367 30/4/1999 Frame 39 descriptionImme DataRoute Fdev InfoTemp = internalTem p 146 900 Info 255 0 18/4/1999 21511 1.3 0 0 0 91Anlg Code Description Parameters Returns Sampling methods are deﬁned by three bits, as follows Return result depends on the control byte see table. However A720B and A723, but see also the comments in Remote on Performing Advanced Functions Command Code Deﬁnitions Port 193 RX 6789 Port 7/5/1999 183422193 TX #7851 BA 6789 B#234 BA 15190 BVER 1.3 Blst 30/8/2001 160341VER VER 2.0Notiﬁcations Device descriptors and storage handler Returned errors listCommand line interpreter Real time clockNotiﬁcations Chapter Appendix. Speciﬁcations Parameter Min Typ Max UnitTransmitter all measurements made on a 50 Ω resistive load Chapter Chapter Index INFO, 41 OWNID, 26 PMP PMP What a base station contains Xmit Credits Credits and ColophonColophon