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2.3
I/O CONNECTOR
The following functions are available on the 9 pin Micro D
connector on the back of the camera:
•
power supply
•
system reset function
•
RS232
Check our website for available accessories that can be
used to connect the camera to your system.
9
5
Figure 2-4 I/O connector
In the next table the function of each pin of the connector is
given:
Pin
Function
1
Power Supply
2
RS232 Tx
3
RS232 Rx
4
(reserved)
5
(reserved)
6
Power Ground
7
RS232 Ground
8
Ext. Reset (+)
9
Ext. Reset (-)
Note: reserved pins must be left unused to be compatible
with future versions!
Page 4
In the next paragraphs more information for each category
is given.
2.3.1
The Dica 220 is powered by connecting the external power
pin 1 to the + pole and pin 6 to the ground of a power
supply. The voltage must be in the range 10..24 volts, but
is typically 24 Volt.
2.3.2
6
The external reset input, is connected to an onboard opto
coupler. This opto coupler is 24 Volt compatible. A
pushbutton connected between the +24V supply and pin 8
1
can be used as an external system reset. Pin 9 of this
connector should be connected to the ground of this 24V
supply.
2.3.3
The Dica 220 has a 3-wire RS232 interface, with a
maximum baudrate of 115200 baud.
The 3 pins of RS232 are located on 9 pin Micro D
connector as follows:
Pin 2 is the RS232 transmit data line.
Pin 3 is the RS232 receive data line.
Pin 7 is the RS232 ground.
Power supply
External Reset
RS232
2005-06-27
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