User Manual

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1.6.3 De-registration
Registration is a process in which the Playmaker seeks out the base
station and initiates communication by first acquiring a slot # from
the base. This slot # is known to us as the unit #. This number is
sequentially assigned by the base station, and it is between 1 and
200. Once the limit is reached, the base will look for an available
slot # starting from 1 again.
When this function is selected, the Playmaker will send out a de-
registration request to the base. The application at this time shall
process the request and send back a command to perform the
actual de-registration. If unsuccessful, you will simply see “Cancel
Key to exit”. Otherwise, you will see “DONE …” and “SHUTTING
DOWN …”.
1.6.4 BER Test
BER is a measurement of how well the Playmaker is receiving from
Playmaker. It should be 00 at all times. If it fluctuates beyond 00
moderately, the reception quality is only borderline acceptable. If
it stays above 00 half the time, you are likely to have an RF issue.
Figure 2 BER Test
Note that BER reading will fluctuate when the Playmaker is on the
move. As such, only take the reading while the Playmaker is
stationary.
1.6.5 Memory Test
This test is solely to give us an idea if the EEPROM is ok. Once
started, it will take a few seconds to scan through the memory to
identify if there is a fault.