3M Electronic Monitoring
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Figure 8: Curfew Unit LED Indication
The following table explains the role of each of the Curfew Units LED indicators.
LED
Description
Receive
Flickers when a transmission is received by the Curfew Unit.
Transmit
Flickers when a transmission is sent by the Curfew Unit.
Battery
Lit (solid LED) when the backup battery is fully charged.
Flashes when the backup battery is charging.
Power
Lit (solid LED) when external power is connected.
Off when external power is disconnected.
4.3
Checking the One-Piece GPS Unit’s Battery Status
To check the One-Piece GPS Unit’s Battery Status:
Press and hold the Activation button on the front of the One-Piece unit for one second.
The PWR LED flashes green once.
If the PWR LED flashes red, or not at all, the One-Piece unit needs to be charged.
4.4
Attaching the Tamper Plugs
On the rear of the brackets on the One-Piece unit, attach tamper plugs.
To attach the tamper plugs
1.
Into each bracket on the back of the One-Piece unit, insert a tamper plug.
2.
Loosely place the tamper plug into the slot in the bracket.
