V1.0(05/23)
IS20
* NMEA 0183 input/output The NMEA 0183 input supports two dierent baud rates: 4.8kbps
and 38.4kbps. These baud rates can be selected from the sengs page, allowing you to choose
the appropriate data source for the IS20. The selected data source provides real-me data to the
IS20, which is then displayed on the screen for easy monitoring.
Furthermore, the IS20 has the capability to transmit (repeat) data from the NMEA 0183 input
and send it to other devices using NMEA 0183 output wires. If you wish to forward the data to a
computer, you will need a TTL to USB adapter (not included). This enables the input data to be
displayed on soware running on your computer, enhancing data visibility and analysis capabili-
es.
The IS20 input/output interface is based on NMEA 0183-RS422 (dierenal) protocol.
For RS422 interface devices , connect ‘+’ to ‘+’ wire of IS20, and ‘-’ to ‘-’ wire of IS20. Swap ‘+’ and
‘–’ wires if the IS20 does not work.
For RS232 interface device( single end), connect TX/RX to NMEA input/output ’-’ and GND to
input/output ’+’. Swap TX/RX and GND wires if the IS20 does not work.
Type-C connector
The IS20 is supplied with a type-C USB connector and USB cable for sengs and upgrade its rm-
ware. The USB cable can be linked directly to a USB port on the Windows PC.
NMEA 2000 connector
The IS20 provides a standard male NMEA 2000 connector. It can also be connected to a NMEA
2000 network to receive NMEA 2000 data. The NMEA 2000 connector also provides the power
supply to IS20.
Disclaimer: This product is designed to aid navigaon and should be used to augment normal navigaonal procedures
and pracces. It is the user’s responsibility to use this product prudently. Neither Quark-elec, nor their distributors or
dealers accept responsibility or liability either to the product user or their estate for any accident, loss, injury or
damage whatsoever arising out of the use or of liability to use this product.
GETTING STARTED
Turning the unit on and o
The IS20 oers two opons for powering the device: through the N2K connector or the power
cable connected to the Power and NMEA 0183 input/output connector. Once power is supplied,
press and hold the POWER buon for 3 seconds to turn on the screen. The Quark-elec logo will
be displayed, followed by a legal noce page upon compleon of the inializaon process. To
proceed, simply tap 'Accept', and the default page will be presented.
To power o the IS20, press and hold the POWER buon for 5 seconds while the display is acve.
Adjust the brightness
When the IS20's screen is acve, pressing and holding the central area of the screen will bring up
the brightness seng page. From this page, you can conveniently adjust the screen brightness to
your desired level, ensuring opmal visibility in dierent lighng condions.
Setup
For more details on how to setup IS20 and operaon, please refer to the manual, which can be
found on the Quark-elec website.
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