Unit Dimensions and Communication

The RM4210/RM4250 and RM4211/RM4251 remote monitoring units (RMUs) are designed to be installed on top of a test station using an adapter. The dimensions of the unit and test station adapter are shown below.

RMU Enclosure and Adapter Dimensions

RMU Enclosure and Adapter Dimensions

The test station adapter is designed to fit on test stations with a 3" diameter.

The list below identifies conditions to consider before installing the unit.

  • The area around the installation site should provide enough working space to easily access the unit to wire inputs, configure the unit for service and take measurements, or perform routine maintenance.

  • The unit should be placed in an area that is clear of obstructions that may interfere with satellite reception. The RM4210 and RM4211 connect to the satellite that is directly south of North America (the satellite's coverage is shown in light blue on the map). Satellite signal strength can be verified before completing installation (refer to Install an RM4211 or RM4251).

    Satellite Coverage Map

    Satellite Coverage Map

  • The RM4250 and RM4251 communicate via a cellular network. Refer to AT&T wireless coverage map for your coverage areas.