Westermo RM-505U-2-E - Manual (Page 4)

505U Radio Telemetry Module
Page 4 © September 2002
505U Radio Telemetry Module
USER MANUAL
1 OVERVIEW -----------------------------------------------------------------------------------------------6
1.1 A VAILABLE M ODELS .....................................................................................................6
1.2 I NPUT S IGNALS ..............................................................................................................6
1.3 P OWER S UPPLY ...........................................................................................................7
1.4 R ADIO T RANSMITTER ....................................................................................................7
1.5 C ONFIGURATION ...........................................................................................................8
2 OPERATION ----------------------------------------------------------------------------------------------9
2.1 N ORMAL O PERATION ....................................................................................................9
2.2 W HAT INFORMATION IS TRANSMITTED OVER THE RADIO ? ...........................................9
2.3 H OW OFTEN IS THE INPUT INFORMATION SENT BY RADIO ? .........................................9
2.3.1 Digital Inputs ......................................................................................................10
2.3.2 Pulse Inputs........................................................................................................10
2.3.3 Analogue Inputs.................................................................................................11
2.3.4 Setpoint Status...................................................................................................13
2.3.5 Low Battery Voltage Alarm ...............................................................................13
2.3.6 Communications Failure..................................................................................13
2.4 H OW TO D ESIGN A R EMOTE M ONITORING S YSTEM .................................................14
2.4.1 Achieving reliable radio transmission............................................................14
2.4.2 How far will the radio transmit? ........................................................................15
2.5 C ALCULATING P OWER C ONSUMPTION ......................................................................16
3 HARDWARE INSTALLATION -------------------------------------------------------------------19
3.1 H OW TO MOUNT THE 505U ........................................................................................20
3.2 A NTENNA I NSTALLATION .............................................................................................20
3.3 C ONNECTION P LUG ....................................................................................................24