User's Manual

 Dynamic range setting
The 3M™ Dual Comm RF Monitoring Receiver unit is equipped with four default range
options, which can be configured by the officer and tested at the offender’s residence or
remotely from the monitoring center.
 Short – 5-14 meters (in an open field environment)
 Medium – 12-27 meters (in an open field environment)
 Long – 23-45 meters (in an open field environment)
 Maximum – Up to 150 meters (in an open field environment)
Users can initiate a range test directly from the Receiver unit’s built-in interface,
enabling the Receiver unit to automatically determine the optimum range settings for
the offender’s home conditions without needing to communicate with the monitoring
center. Alternatively, the range setting can be manually defined remotely from the
central monitoring station.
 Two way RF communication
The 3M™ Dual Comm RF Monitoring Receiver is capable of two way RF communication
with the transmitter. This means that the Home receiver unit can transmit data to the
transmitter and not just receive data from the transmitter (as in the previous
generations of the home unit receiver).
This option enables:
 Automatic software upgrades to the transmitter
 Storing and loading events during absence periods
 Programmable option to define how often transmissions are made
 Event storage outside the curfew area
The 3M™ Dual Comm RF Monitoring receiver and transmitter are capable of recording
tamper events even when the transmitter is out of the receiver’s range (such as when
the offender is away from home during a permitted absence).
The transmitter will detect and store any tamper event. After the offender returns to the
curfew area the events are automatically sent to the receiver and uploaded to the
central monitoring station. Each event’s timestamp reflects the actual point in time that
the tampering event took place, even after a delay.
 Backup battery
The 3M™ Dual Comm RF Monitoring Receiver is equipped with an internal backup battery
to ensure uninterrupted operation during power failures. The backup battery provides
approximately 48/24 hours of continuous power for monitoring, including scheduled
calls to the central monitoring server.
When a power failure is detected, a notification message is logged and the unit continues
to work using backup battery power. As long as backup power is being used, the unit
periodically (as defined in a parameter) uploads a reminder message, “Battery is still
disconnected”. The unit is capable of reporting the battery status via events (such as,
"battery medium charging level" or "low level charging").
If AC power is not restored for after more than 48 hours and the backup battery runs
out, the unit's data contents are still preserved by a secondary Lithium backup battery.
When the 3M™ Dual Comm RF Monitoring Receiver unit detects a power failure, it beeps
to notify the offender or another people in the offender's home that power has been lost.