removed, causes the Interface to transmit its detected Tag data once immediately upon detection.
There is a Mode 3 as well that can only be selected through a software command. The default mode
can also be changed by the host via a Mode Command, discussed in the third section of this manual.
2.12 AUXILIARY PORT FOR LCD
The Model 2002 Interface contains an 8-bit parallel auxiliary port that may be utilized to drive an LCD
Display. If not used, the connector pins for this port should be left open so that operation of the
Interface is not affected by external conditions. The pins used for the auxiliary port are c22 through c31
on connector P1.
2.13 INSTALLATION COMPLETE - POWER UP MESSAGE
Installation should now be complete. You can see how you did by preparing the host for
communication and applying power to the Interface. Whenever the Interface is powered up or reset, it
issues a power up message. The issuance of this message signifies to you at least one-way
communication, the transmission function, is working properly and also advises the host that a reset has
occurred so it can reset any non-default operating characteristics, assuming you include this in your
software. The power up message is preceded by a Line Feed (<LF>) and followed by a Carriage
Return (<CR>) like all messages out of the Interface. For the Model 2022, the power up message
consists of an 18 character string:
ELECTRONIC-LABEL**
For the Model 2022/8 (covered later), the power up message consists of a 10 character string:
RFID-LABEL
To test communication from the host to the Interface, issue a Carriage Return. The response you get
should be that of a question mark.
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