30
ASCII Protocol - Reference Guide
May ’00
2.5
Multipage Transponder - K1 Mode
The commands that can be used in the K1 mode for use with MPTs are described in
sections 2.5.1 to 2.5.5 these commands are:
*
= If the second character in the Execute and Line commands is M, the reader
or control module is switched to Multiplexer mode (2.5.2.1 or 2.5.2.2).
In order to address an MPT it is necessary to switch the TIRIS reader into the Multi-
page Transponder mode (K1 mode). The Multipage Transponder mode causes the
TIRIS reader on the one hand to generate a protocol including additional information
specifying the MPT page as well as information concerning the desired command
(PC --> TIRIS reader), and on the other hand to provide a status information (TIRIS
reader --> PC) to inform you which command was actually carried out in the tran-
sponder.
The ASCII character K and a subsequent character 1 enable you to switch into the
Multipage Transponder mode. If character K is followed by a character other than 1
(MPT mode) or 0 (64-bit Transponder mode), the TIRIS reader will ignore the entire
command. Both command characters will be separately echoed by the TIRIS reader.
The command acknowledgment is completed with the transmission of carriage re-
turn and line feed.
Example (switching from 64-bit transponder functions to MPT functions):
PC --> Reader:
K
Initiates Change mode - command
Reader --> PC:
K
Table 9: Multipage Transponder Commands
Character
Command
Section
Esc
NORMAL Mode/ESCAPE
2.5.3
L *
LINE Function
2.5.2
O
LOCK PAGE Command
2.5.5
P
PROGRAM Command
2.5.4
U
ANTENNA Commands
2.5.6
X*
EXECUTE Command
2.5.1
Note:
If the TIRIS reader is switched from the Multipage Transponder mode
(K1) into the 64-bit Transponder mode (K0), continuous read-out func-
tions NORMAL and LINE MODE keep running (for example: Line
mode (K1) ---> Line mode (K0)).
If the TIRIS reader is switched from the 64-bit Transponder mode (K0)
into the Multipage Transponder mode (K1) and continuous read-out
functions were active, the TIRIS reader will ask for additional two
characters to specify the page of the MPT to be read, and then con-
tinue to run in the previous read mode.
