Itala | INSTRUCTION MANUAL
D
R
EN
TX
RX
D+
PIN 8
PIN 9
PIN 1
D-
GND
GND
RS485 MODE
TO
FPGA
TO
EXTERNAL
DEVICE
RX
TX
RX
PIN 8
PIN 9
PIN 1
TX
GND
GND
RS232 MODE
TO
FPGA
TO
EXTERNAL
DEVICE
Figure 72: Equivalent circuit of the serial interface in RS232 and RS485 mode of operation.
CAUTION: always check the external device specification before connecting it to the
camera and set the serial mode accordingly. Failing to do so may result in damaging
the camera or the external device.
The slew rate control affect the shape of the output signal waveform. The slow setting yields
smooth transitions and may reduce EMI radiation. The fast setting yields steep transitions, en-
abling the use of the highest baud rates. This feature is only available for RS485 mode.
ASCII Protocol:
The ASCII Protocol allows to send and receive ASCII characters (NULL terminated) over the serial
interface. Available both for RS232 and RS485 mode.
Modbus RTU Protocol:
Modbus RTU is a request/reply protocol which provides client/server communication between de-
vices connected on a serial bus. The camera acts like a client and implements a subset of the
Modbus RTU function codes such as Read Holding Registers and Write Single Register. Only
available for RS485 mode.
Binary Protocol:
The Binary Protocol allows to send and receive plain binary data over the serial interface. Available
both for RS232 and RS485 mode.
v1.12 - eng 102
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