User Manual of the PTZKB835 Keyboard
11
Figure 2-6 Connection between the keyboard and the analog matrix
The RS-232 interface of the PTZKB835 keyboard uses the DB9 interface. And the definition of pins of DB9 interface is written in the
table below.
The PTZKB835 keyboard uses RS-232 interface, the RS-232 interface connects the keyboard control interface on the analog matrix.
The above figure shows the connection between keyboard and the analog matrix via RS-232 interface.
When connecting to more than one analog matrix, the analog matrix connected in parallel, showing in the above figure.
Note:
When controlling more than one analog matrix, the protocol is the ZT-1.0. Otherwise the cascading matrix cannot be controlled.
No.
Name
Function
1
DCD
--
2
RXD
Receiving Data
3
TXD
Transmitting Data
4
DTR
--
5
GND
Grounding
6
DSR
--
7
RTS
--
8
CTS
--
9
RI
--
