XT-1 Installation Manual
13-111 02, 2014-RO-012, 2014-04-30
Page 14 of 32
RS232
The RS232 interface is used for host communication and supports ASCII output and TAGP. Detailed settings
are configured in firmware see §4.2.3.3.3. The interface has 1500 VDC isolation and overvoltage protection.
Figure 14 RS232 connection, overview and detail
Connections
TXD
Transmitted data to host (See Figure 14 for details)
RXD
Received data from host
GND
Signal ground #2
Recommended / Max length
- / 10 m
Wire size
Specification according to EIA RS232C. Belden 9184 or Belden 9502 are
recommended.
Max Baud Rate
115.2 kb/s (default)
Table 7 RS232 connection overview
The default output of the RS232 interface is tag data in ASCII format. If SecureMarkID® tags from
TagMaster are being used (recommended) the numeric identity is sent out. If other EPC tags are being
used the default output is the EPC data. The data is followed by CR+LF ('\r''\n').
A TAGP connection can be initiated by sending the HELOTAGP message to the reader. The TAGP
connection is terminated with the QUIT message.
