Installation manual

Rev. B 3 KEMU000826
03/26/04
2.2 POS WITH MULTIPLE COM PORTS
If the POS system has more than one serial port, it is preferable to enable this second
port in Journal Mode and capture its output by connecting it directly to the AVBPIT1
COM0 Channel. The cable utilized here must also be manufactured and is pinned out
similar to the one described in Section 2.1 above, except that it directly connects the
POS device and the AVBPIT1 module. The cable must connect Pins 2 and 5 (typically)
of the POS serial port with pins 3 and 5 of the AVBPIT. See the figure below. For a
typical system diagram, see Appendix A, Figure 7.
Be careful to comply with all applicable RS232 standards when creating
this new cable. Although the Rapid Eye and PIT system only require 2
signals to effectively capture POS data, the serial ports on the POS
terminals may require other RS232 signals be addressed to operate
effectively. Some POS terminals require that the RTS and CTS signals be
connected together before the port will transmit data. Consult your POS
hardware manual for any POS-specific requirements.
Connect to COM0
Channel of the
AVBPIT1 Module
Figure 3: New Cable – POS with Multiple COM Ports