RTCU NX-900 Technical Manual V1.02
Advanced M2M/IIoT Gateway
Logic IO ApS.
Ph: (+45) 7625 0210
Holmboes Allé 14
Fax: (+45) 7625 0211
8700 Horsens
Page 13 of 45
Denmark
Angled terminal back row overview
Terminal Name
Description
SER2_TXD
Transmit data from serial port 2, RS232 compatible.
SER2_RXD
Receive data for serial port 2, RS232 compatible.
SER2_CTS
Clear-To-Send for serial port 2, RS232 compatible.
SER2_RTS
Request-To-Send for serial port 2, RS232 compatible.
SGND
Signal ground.
DCOUT5
+5V / 300mA DC output for external equipment.
RS485 non-inverting signal for RS485 port 1.
RS485_1-
RS485 inverting signal for RS485 port 1.
SGND
Signal ground.
VAC terminal overview
Terminal Name
Description
N
100-260VAC (50/60Hz)
N
ull input.
(internally tied together)
N
P
100-260VAC (50/60Hz)
P
hase input.
(internally tied together)
P
Protective earth terminal for the AC power.
(internally tied together)
Connector Mini USB-B
The USB port is for programming and communication with the RTCU IDE (RACP compliant
application). A standard USB cable with a connector length of 10mm on the USB-B end can be used
between the device and the PC
Connector Ethernet
This is a standard 10Base-T/100Base-TX IEEE 802.3 compliant Ethernet connector. Please use an
appropriate connector and cable, such as a standard CAT-5 twisted pair patch cable