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connections for an external power supply, 3-wire serial I/O,
the input for an external system reset and a watchdog
function.
Micro D; MULTI-PURPOSE I/O
9p-Male
5
9
4
8
3
7
2
6
1
2.3.4.1
Power supply
The Inca 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 8..40 volts, but is
typically 12..15 Volt. The Inca Power Supply; 8122 410
81500 is a 15 volt 2 Amp. power supply. It also requires a
separate cable (8122 410 81530) for a direct connection to
the camera.
2.3.4.2
RS232
Pin 2 is the RS232 transmit data line.
Pin 3 is the RS232 receive data line.
The RS232 digital ground is connected to pin 7.
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PIN
FUNCTION
1
Ext. Power
2
RS232 TxD
3
RS232 RxD
4
W-dog alarm-p
5
W-dog alarm-n
6
Ext. Power ground
7
Digital ground
8
Ext. Reset-n
9
Ext. Reset-r
Warning: When using the Micro D to Sub D cable (8122
410 81530) which is also included in the starter kit please
notice that the point 7 and 5 are interchanged all other
points are interconnected one to one.
2.3.4.3
Watchdog
The watchdog connection is an opto-isolated output. Pin 4
is the p connection and pin 5 is the n connection. This
output can be switched under software control and can be
made dependent of among others (software) timers. (p/n
see: 2.3.2.1 Using the Trigger Input)
2.3.4.4
Reset
A single pole pushbutton connected between the pins 8
and 9 can be used as an external system reset. (Available
in the starterkit). For an internal reset the watchdog output
can be connected directly to the reset input ( pin 4 - pin 8
and pin 5 - pin 9) for this reason the reset input is not Opto
isolated.
2.3.5
The display connector
The display connector can be used for the connection of a
VGA or a CVBS monitor. Only one of these two
possibilities can be activated at a time. The VGA output
has a resolution of 680x480 pixels in a non-interlaced
mode. The CVBS mode is either CCIR or RS170
compatible depending on the mode set via software. Both
VGA and CVBS outputs support a non-destructive colour
overlay. For connecting a VGA monitor a standard cable
can be used. For the CVBS monitor connection no
2005-12-12
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