QTech Data Systems DNP3 RTU - Manual (Page 11)

DATRAN XL4 RTU – Owners Manual – v1.1 June 2012
www.qtech.co.nz Page 11
Note In electrically noisy environments it is necessary to use screened data cable and keep the cable length as
short as possible.
Function
Pin 1 DTR
Pin 2 RTS
Pin 3 CTS
Pin 4 Ground
Pin 5 RXD
Pin 6 TXD
Pin 7 DCD
Pin 8 RI
Note. RJ45 cable connector pin numbering
RS232 – RJ45 Connections
In general the RS232 serial port can be extended up to a maximum of 15 metres. Beyond this distance
communications will be unreliable.
USB USB USB USB Configuration Configuration Configuration Configuration Port Port Port Port
The Configuration Port is used for on-line configuration, diagnostics and data/program exchange. The port is also
used for I.C.P. (In circuit programming) of the system firmware.
The port is labelled “CNFG” on the XL4 and uses a Type A to Type B USB cable. Maximum cable length is 5
meters.
The configuration and software upgrade of the Q04 ARM Processor is detailed in a separate manual.
Ethernet Port Ethernet Port Ethernet Port Ethernet Port
This is a 10/100 MBit Ethernet port labelled “ETH” on the XL4.
This port can be used for Base Station or peripheral communications via such protocols as QComms, DNP3,
Modbus Slave/Master, etc. The Ethernet socket has a green and an orange LED. The orange LED is the Link
LED and turns on when a good link is established then flashes off for Ethernet traffic. The green LED is the Speed
LED and turns on for 100 MBit connections and off for 10 MBit connections.