Kimaldi BioMax2 - Communication with RS-232 Devices; Biometric Identification Module; RS-232 Reader; Read-Only Readers

BioMax2 / KBio2-Online
Installation and Programming Manual
www.kimaldi.com Page 26 of 91
7. Communication with RS-232 devices
BioMax2 and KBio2-Online electronics have two RS-232 ports that can be used for
different purposes.
As explained in chapter 6.1, UART0 maintains the possibility of connection to the Host
so that total compatibility between BioMax and BioMax2 is ensured. However,
communication to Host will normally occur through the IP ports, so that UART1 and
usually UART0 will be available for connection to peripheral RS-232 devices.
To date, these devices will be of the following types:
7.1. Biometric identification module
BioMax2 and KBio2-Online electronics are specially suited for biometric identification.
For that purpose, a FIM module must be connected to UART1 (connector J7 on chapter
4.1
for BioMax2; connector J4 on chapter 4.4 for KBio2), so that we can capture and
verify biometric templates
1
.
The template database for biometric identification may be stored in the Host (eNBSP
libraries from Nitgen), or in the FIM module itself, depending on the particular needs of
the installation.
The Bio-OCX controller allows a simple operation with the FIM modules. We must also
configure the following parameters:
• Parameter$1B: UART1 configuration.
- Recommended value: $8A (FIM module at 38400 baud)
• Parameter$1D: Main FIM activation.
- Recommended value:
$05 (it allows Auto-On and GCR commands)
- Legacy value:
$FF (LED optical barrier)
More information on Subsection 8.1.1.
7.2. RS-232 Reader
7.2.1. “Read-only” readers
A reader that transmits the user identification code through the serial port can normally
be connected either to UART0 or UART1. This would be, for example, a proximity
reader, magnetic band or bar code, etc. In these cases, the data received will be processed
the same as if it were to arrive via Clock&Data ports. This means that the green and red
LEDs can be used to provide information on the success or error of the reading process,
that multiread filtering can be applied and that in any case a Card Reading event will be
generated.
Subsection 8.1.4. shows that the data is processed in the same way, whether it
1. We may also connect the FIM module to UART0, but then we must use Terminal Block J3
(BioMax2), and configure
Parameter$1A CFG_Serial_Port_Host to $8A, and Parameter$1D to $04.