NV10 FAMILY USER MANUAL
Copyright © Innovative Technology Ltd 2016
Doc: GA02116 - NV10 FAMILY USER MANUAL
Version:1.1
Page 44 of 80
6.7
SIO and SI2
6.7.1
General Description
SIO (Serial Input/Output) is a very basic and low level serial communication
interface. Messages are not echoed back. SIO uses 300 baud whereby SI2 uses
9600 baud.
Please contact
for SIO Interface Specification or
other details.
Caution!
SIO and SI2 are outmoded and not recommended for new developments! The
N does not support the simple serial data out only mode. It only supports
the serial data input/output mode. The host machine does not echo messages back
to the validator. The N does not operate in true RS232 mode. (Only TTL
level). To use Serial Input/Output mode, the SIO interface must be programmed
There are 4 different combinations of SIO available:
-SIO 300 Baud
-SIO 300 Baud (Disabled at Start up) - A software enable must be sent to enable the
validator.
-SIO 9600 Baud
-SIO 9600 Baud (Disabled at Start up) - A software enable must be sent to enable
the validator.
The data is formatted as follows:
1-start bit 8-data bits 2-stop bits 300 baud.