
37
May ’00
Chapter 2. Commands
The TX Multiplexer Channel is controlled with I/O line 4 and 5 according to the table
below.
The response data format is defined as follows:
Legend:
L is the leading character to define the read mode
pp =
Page of an MPT
i
=
Transponder ID
x
=
Transponder Type
r
=
Receive antenna
t
=
Transmit antenna
s
=
read/programming status
Table 12: Multiplexer I/O Lines 6 & 7 Configuration
RX_Ant
External RX Mux.
I/O 6
I/O 7
1
0
0
2
1
0
3
0
1
4
1
1
Table 13: Multiplexer I/O Lines4 & 5 Configuration
TX_Ant
External RX Mux.
I/O 4
I/O 5
1
0
0
2
1
0
3
0
1
4
1
1
Read Status
K1 Mode
Current Protocol
Protocol for TX/RX Mux
RO,R/W Trp.
Lrx iiii iiiiiiiiiiiiiiii
Ltrx iiii iiiiiiiiiiiiiiii
MPT
Lrsx pp iiii iiiiiiiiiiiiiiii
Ltrsx pp iiii iiiiiiiiiiiiiiii
incomplete ID
LrI
LtrI
no read
Lr
Ltr
Note:
The receive multiplexer is only supported by TIRIS readers which
include an RFM 104B. To ensure that other TIRIS readers function
correctly, the Rx Antenna specifier must be set to 1.