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ADA-4040PC6
3.3.3. LINE TERMINATION Rt
The application of Line Termination (terminator) Rt = 120 ohms will reduce electrical reflection in data line at high baud rate. It is not
needed below 9600Bd. Should be used the Line Termination resistor if the distance is over 1000m @ 9600Bd or 700m @ 19200Bd,
and if the disturbance in transmission will appear.
Example connection of Rt are shown on Fig. 6 & 7. Four Rt=120 W , 5%, 0,25W are delivered with the converters.
3.4. POWER SUPPLY CONNECTION
To connect power supply to the converter, should have DC power supplies (regulated) output voltage from 10 V= to 30V=, min.
nominal power 2W, e.g. HDR-15-24. Power cable from DC power supplies to device can not be longer than 3m. Should connect
positive (+) end of DC power supplies to V+ device terminal and negative (-) end to V- on terminal block. ADA-4040PC6 has protection
against power supply reverse connection.
4. ACTIVATION
The converter can be power on after properly connection according to section above.
If after connection power supply on front panel will not light green led PWR, check correctness of power supply connecting
(polarization). When data is present the LEDs Tx and Rx should blink
AT BAUD RATE ABOVE 38.4 KBPS THE LED'S TX, RX WILL LIGHT WEAKLY DURING DATA TRANSMISSION
4.1. DESCRIPTION OF SIGNALLING LEDS
LED
PWR
Signalling of Power Supply
RX
Signalling of data receiving through ADA-4040PC6 from RTU RS485/RS422 port.
TX
Signalling of data transmitting from ADA-4040PC6 through RTU RS485/RS422 port.
Not light – signalling of normal operating mode (RUN)
Blinking at frequency 1 Hz – signalling of configuration mode or data flow of software to the converter.
Yellow LED by
SW1
Blinking at frequency 2 Hz – signalling of factory default mode
Lit continuously – signalling of emergency firmware update
4.2. TROUBLESHOOTING
Problem
PWR LED is not light
Rx LED lights
continuously
No transmission
Tx LED is blinking
5. CONFIGURATION
5.1. OPERATION MODE
ADA-4040PC6 converter can operates in a few modes:
● RUN,
● configuration,
● factory default,
● emergency firmware update mode,
Those modes can be set by use SW1 located by screw terminal block NMEA0183 port. To set the switch section, should remove
terminal cover marked as SW1 and make the appropriate settings by the use a small, flat screwdriver. Figure 1 present the location of
two-position SW1 micro-switch.
All available adjusting the SW1 switch are shown in table below.
Converter operation modes
SW1- 1
SW1- 2
OFF
OFF
ON
OFF
OFF
ON
ON
ON
5.2. CONFIGURATION BY USING ADACONFIG
The configuration of ADA-4040PC6 converter can be made by the use of ADAConfig Software - selling with converter. To make the
configuration, connect converter to computer (see pt. 3.2) and power supply. If after power, on the front panel is not lit green LED
PWR, check the power connection (polarity). If the PWR LED lights, set the section of SW1 switch to configuration mode as in table
below.
Check polarization and parameters of connected power supply.
RS485(4W) /422 network. Wrong polarization on terminals: Rx+, Rx- RTU port; change
polarization.
RS485(4W) / RS422 network. Check correctness of connection to terminals Tx, Rx; according to
point 3 and the converter configuration.
Mode
Run
Configuration
Factory default
Emergency firmware update
ATTENTION!
Description
Solutions
7
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