QTech Data Systems DNP3 RTU User Manual

Page 12

DATRAN XL4 RTU – Owners Manual – v1.1 June 2012

www.qtech.co.nz

Page 12

Function

Pin 1

Tx +

Pin 2

Tx -

Pin 3

Rx +

Pin 4

Unused

Pin 5

Unused

Pin 6

Rx -

Pin 7

Unused

Pin 8

Unused

Note. RJ45 cable connector pin numbering

Ethernet – RJ45 Connections

USB Port

The labelled “USB” is a USB Host Port and provides a method of connecting standard and specialised USB
Devices peripherals to the Q04 ARM Processor. These USB peripheral devices may include USB Pen Drives,
USB Mass Storage devices; QTech supplied programming and configuration devices.

The USB Host Port is not currently implemented, and is intended for future feature development.

Q04

Q04 Configuration Jumper Functions

Configuration Jumper Functions

This section describes how to configure the Q04 Processor in the XL4 RTU via the various on-board configuration
jumpers.

The power should be removed from the XL4 RTU by removing the power connector before carrying
out any of the configurations detailed below.

The XL4 RTU incorporates static discharge sensitive devices. Normal Anti Static Discharge
precautions should be employed when setting up and making any adjustments to the XL4 RTU.

An anti-static wristband should be worn and the earth connection of this wristband should be

connected to the terminal marked ‘EARTH’ on the Q04 Processor before any adjustments are made.

The following list describes the function of each of the configuration jumpers on the Q04 Processor:

INIT

When closed, this jumper will cause the RTU to load the factory default settings on power-up. The
jumper is normally open, and should be returned to the open position after performing a factory default
operation.

485TERM Close jumper A to provide a 120 ohm termination to the RS485 lines. Jumper B should not be installed

and is provided for future RS422 termination options.

BAT

When open, this disables the real time clock battery backup function. This allows the battery to be
disconnected and preserved during long term storage of the module. This jumper is closed for normal
operation, open for long term storage.

ISP

These jumpers are normally open in normal use. They must be closed when upgrading the firmware
through the QTech Workshop software, if this feature is available. The jumpers must then be opened
again once the firmware update is completed.

DEBUG

This jumper is only used by QTech developers when developing software for the XL4.

Note: A jumper is closed when a jumper shorting link is installed on the jumper. A jumper is open when a jumper

shorting link is removed/not installed.

A two way jumper has three pins so that the jumper shorting link can be installed one of two ways.