Moxa Technologies EM-1240-LX user manual Connecting Data Transmission Cables, Connecting the Power

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EM-1240-LX User’s Manual

Introduction

ATTENTION

Safety First!

Be sure to disconnect the power cord before installing and/or wiring your EM-1240-LX.

Wiring Caution!

Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes dictating the maximum current allowable for each wire size.

If the current goes above the maximum ratings, the wiring could overheat, causing serious damage to your equipment.

Temperature Caution!

Be careful when handling the EM-1240-LX. When plugged in, the EM-1240-LX’s internal components generate heat, and consequently the outer casing may feel hot to the touch.

Connecting the Power

Connect the “live-wire” end of the 12-48 VDC power adapter to the EM-1240-LX’s terminal block. If the power is properly supplied, the “Ready” LED will glow a solid green after a 25 to 30 second delay.

Grounding the EM-1240-LX

Grounding and wire routing help limit the effects of noise due to electromagnetic interference (EMI). Run the ground wire from the ground screw to the grounding surface prior to connecting devices.

ATTENTION

This product should be mounted to a well-grounded mounting surface such as a metal panel.

SG

V-	V+
12-48V

SG: The Shielded Ground (sometimes called Protected Ground) contact is the left most contact of the 3-pin power terminal block connector when viewed from the angle shown here. Connect the SG wire to an appropriate grounded metal surface.

Connecting Data Transmission Cables

This section describes how to connect the EM-1240-LX to the network, serial devices, and serial COM terminal.

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Contents First Edition, November EM-1240-LX User’s ManualCopyright Notice Table of Contents Chapter EM-1240-LX Device API Introduction Product Features Package ChecklistOverview EM-1240-LXHardware Specifications Product SpecificationsSoftware Specifications EM-1240 Development Kit Embedded Module Hardware Block Diagram AppearanceEM-1240 Embedded Module EM-1240 Development Kit Dimensions LED Indicators Installing the EM-1240-LXWiring Requirements Connecting the Power Connecting Data Transmission CablesGrounding the EM-1240-LX Connecting to a Serial Device Connecting to the NetworkInternal SD Socket Reset ButtonAdditional Functions Serial Console PortReal-time Clock Getting Started Connecting the EM-1240-LX to a PC Powering on the EM-1240-LXConsole Port Telnet Default IP Address Default Netmask192.168.3.127 255.255.255.0 192.168.4.127 255.255.255.0Configuring the Ethernet Interface Dhcpcd -p -a eth0 & dhcpcd -p -a eth1 Ifconfig eth0Installing a Secure Digital SD Memory Card Developing Your Applications Installing the EM-1240-LX Tool ChainStep #mount -t iso9660 /dev/cdrom /mnt/cdromEM-1240-LX User’s Manual PATH=/usr/local/arm-elf/bin$PATH Compiling Hello.c#make Uploading Hello to the EM-1240-LX# chmod 755 hello #./hello Running Hello on the EM-1240-LXCflags = Make File Example CodeSoftware Package EM-1240-LX Software Architecture Journaling Flash File System JFFS2 Flash Context Flash Address Size Access controlAdditional information about JFFS2 is available at Bin Dev EM-1240-LX Software PackagePtyp0 Ppp Pio Rtc Ram1 Ram0 Null Kmem Mem Cua0 Console Tty ‰ Iptables ‰ NAT Configuring the EM-1240-LXEnabling and Disabling Daemons Example default enableAdding a Web Default Home Page addressLocal Host Packets Usage Define policy rules, and Append or delete rulesExamples Define policy for chain rules NAT Example Enabling NAT at BootupConfiguring PPPoE Configuring Dial-in/Dial-out ServiceDial-out Service Dial-in ServiceDynamic Driver Module Load/Unload How to Mount a Remote NFS ServerUpgrading the Kernel Ramdiskupkernel em1240-1.x.bin /ramdiskrebootUpramdisk Cd ramdiskUpramdisk Cd ramdisk Upgrading the Root File System & User DirectoryRamdiskbackupfs /ramdisk/usrdisk-backup User Directory Backup-EM-1240-LX to PCMirroring the Application Program and Configuration Loading Factory DefaultsAutostarting User Applications on Bootup Checking the Kernel and Root File System VersionsCat /etc/version FsversionEM-1240-LX Device API Buzzer RTC Real-time ClockUart Interface UC Finder Windows UC Finder EM-1240-LX User’s Manual UC Finder EM-1240-LX User’s Manual UC Finder Linux UC Finder Busybox µClinux normal command utility collection System CommandsFile manager EditorProcess NetworkOther Moxa Special UtilitiesSnmp Agent with MIB II & RS-232 Like Group Ip MIB Tcp MIB Udp MIB Snmp Agent with MIB II & RS-232 Like GroupRFC1317 RS-232 like group supported variables Rs232 MIB Snmp MIBEM-1240-LX FAQ Service Information Following services are provided Moxa Internet ServicesMoxa Product † EM-1240-LX Serial Number Problem Report FormProduct Return Procedure