Tendzone TYCHO T 1212/CA - Manual (Page 25)

As is shown in the chart, all the system output channels are muted when the level of GPIO input channel 5 is changed from
low to high.
f)
Serial Command Setting
Parameter setting: input hexadecimal orders (0~9 and A~F). Two characters constitute one effective order, and if there is
only one character, a 0 should be added before such bit, such as 03, 0A, etc. Bland space will be added after each two
characters for the convenience of reading automatically by the interface. The blank spaces will be filtered off before the
orders are transmitted, so the transmitted orders consist of successive hexadecimal characters.
As is shown in the above chart, the system will perform the hexadecimal order when the level of GPIO input channel 6 is
changed from low to high.
Notes: the input characters must hexadecimal characters, otherwise the order will not be approved, and such transmission
will fail.
D. Basic Attributes of GPIO Output Channels: