User's Manual

STRATEGIC Technologies Inc.
Ref. Doc. No. R.D.5.3.1I Rev 0.1 Jan 18/1999
PID Basics
Page 13
PID Basics
Features
The Personal Identification Device attaches to the participant’s ankle or wrist. The PID transmits a radio
frequency signal once every 15 seconds on rotating frequencies. The transmission is received by the
Platinum Plus Receiver Unit (PRU+). The transmission contains a PID serial number, and four status
messages. The PID serial number identifies the PID to the PRU+. The PRU+ expects to receive a
specific identifying serial number from the PID in order to validate the transmission. The four status
messages are strap sever, PID tamper, case open and low battery. The strap sever message indicates
if the strap is completely broken. The PID tamper indicates if the strap has been tampered with in some
manner or partially cut. The case open indicates that the PID’s outer casing has been opened. The
low battery message indicates if the battery installed in the PID is approaching the limits of its lifetime
or if it is improperly installed.
Resetting the PID
The strap sever, PID tamper and case open alarms have the ability to remember if the alarms were ever
activated. This will ensure that should the participant tamper with the PID while away from the area of
confinement the alarm will be reported upon return. These parts of the PID circuitry need to be reset
upon initial installation by using a LOCK. The PID button on the LOCK is used to reset the alarms.
Simply place the LOCK against the reset point (See Figure 2 : Resetting a PID) on the PID and press
the PID button once. The LOCK will emit a special signal (while the red light is on) and reset the
circuitry. See Page 36 for more information regarding Special Function Mode use of a LOCK.
Figure 2 : Resetting a PID