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RTCU LX4 pro Technical Manual V1.00
Advanced Industrial M2M/IoT Gateway
Mini USB-B Connector
This USB port is for programming and communication with the RTCU IDE or other RACP compliant
applications. A standard USB cable can be used between the device and the PC.
Ethernet / LAN
This is a standard 10Base-T/100Base-TX IEEE 802.3 compliant RJ45 Ethernet connector.
Please use an appropriate connector and cable, such as a standard CAT-5 twisted pair patch cable
The connector has the following LED indicators that show the LINK status and communication
activity.
Power Supply
The RTCU LX4 pro device must be supplied with 8..36 VDC from an external DC power source.
Positive power is applied to the SUPP pin and the ground to the PGND pin.
There are three different ground labels for ground connections: Supply ground (PGND), signal
ground (SGND), and analog ground (AGND).
The signal and the analog grounds are filtered from the power ground. Power ground must only be
used as a power supply return path.
The RTCU LX4 pro is protected against wrong polarity. If a chassis or system ground is connected to
either SGND or AGND, a wrong polarity on the supply lines will destroy the internal GND
connection.
The RTCU LX4 pro contains an internal backup battery, which will supply the RTCU if the external
power supply fails or is disconnected. By default, the RTCU is powered down when a power failure
occurs. This setting, however, can be changed. Please consult the RTCU IDE online help for more
information. When the wakeup/ignition inputs are activated with a logical high, the RTCU LX4 pro
device will wake up from a power-down mode.
Power supply pins
Pin
Name
27
PGND
28
SUPP
29
SUPP
Logic IO ApS.
Holmboes Allé 14
8700 Horsens
Denmark
Description
Power ground, negative (-) connection
Power supply, positive (+) connection
Power supply, positive (+) connection
Page 12 of 39
Ph: (+45) 7625 0210
Fax: (+45) 7625 0211
Email: support@logicio.com
www.logicio.com
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