Table of Contents
1.
Introduction ...................................................................................................................................... 1-1
Overview ........................................................................................................................................... 1-2
Model Descriptions .............................................................................................................................. 1-2
Package Checklist ............................................................................................................................... 1-2
Product Features ................................................................................................................................ 1-2
Hardware Specifications ...................................................................................................................... 1-3
Hardware Block Diagram ..................................................................................................................... 1-4
2.
Hardware Introduction...................................................................................................................... 2-1
Appearance ........................................................................................................................................ 2-2
LED Indicators .................................................................................................................................... 2-3
Default Programmable Button Operations .............................................................................................. 2-4
Reset to Default Button ....................................................................................................................... 2-4
Real Time Clock .................................................................................................................................. 2-5
Placement Options .............................................................................................................................. 2-5
DIN Rail Mounting ....................................................................................................................... 2-5
Wall or Cabinet Mounting ............................................................................................................. 2-5
3.
Hardware Connection Description ..................................................................................................... 3-1
Wiring Requirements ........................................................................................................................... 3-2
Connecting the Power .................................................................................................................. 3-2
Grounding the Unit ...................................................................................................................... 3-3
Connecting to the Console Port ............................................................................................................. 3-3
Connecting to the Network ................................................................................................................... 3-3
Connecting to a Serial Device ............................................................................................................... 3-4
Inserting the SD and SIM Card ............................................................................................................. 3-4
USB Port ............................................................................................................................................ 3-5
Inserting a Micro SD Card .................................................................................................................... 3-5
Installing the Cellular Module ............................................................................................................... 3-5
Installing the Wi-Fi Module ................................................................................................................... 3-7
4.
Remote Configuration and Management ........................................................................................... 4-1
Connecting to the UC-8112 via Webmin................................................................................................. 4-2
Configuring Webmin ............................................................................................................................ 4-2
Change Language and Theme ....................................................................................................... 4-3
Webmin Action Logs .................................................................................................................... 4-3
Webmin Configuration .................................................................................................................. 4-4
Webmin Users ........................................................................................................................... 4-16
Configuring System ........................................................................................................................... 4-19
Bootup and Shutdown ................................................................................................................ 4-20
Disk and Network Filesystems ..................................................................................................... 4-20
Initial System Bootup ................................................................................................................ 4-21
Running Processes ..................................................................................................................... 4-22
Scheduled Cron Jobs .................................................................................................................. 4-23
Software Package Updates ......................................................................................................... 4-24
Software Packages .................................................................................................................... 4-25
System Documentation .............................................................................................................. 4-25
System Log .............................................................................................................................. 4-26
Configuring Server ............................................................................................................................ 4-27
Apache Webserver ..................................................................................................................... 4-27
DHCP Server ............................................................................................................................. 4-28
Read User Mail .......................................................................................................................... 4-29
Configuring Others ............................................................................................................................ 4-29
Command Shell ......................................................................................................................... 4-29
File Manager ............................................................................................................................. 4-29
Configuring Networking ..................................................................................................................... 4-30
Bandwidth Monitoring ................................................................................................................ 4-30
Linux Firewall............................................................................................................................ 4-30
Network Configuration ............................................................................................................... 4-31
Hardware ......................................................................................................................................... 4-32
Partitions and Local Disks ........................................................................................................... 4-32
System Time ............................................................................................................................ 4-33
Viewing More Options ........................................................................................................................ 4-33
View Module Logs ...................................................................................................................... 4-33
System Information ................................................................................................................... 4-34
Refresh Modules ........................................................................................................................ 4-34
Logout ..................................................................................................................................... 4-34
