13b. wcc iii - mcd installation guide, System requirements – WattMaster WM-WCC3-TGD-01B User Manual
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WCC III Technical Guide
13B-6
13B. WCC III - MCD INSTALLATION GUIDE
Uninterruptable Power Supply
The WCCIII-MCD2 system is designed to automatically restart 
after a power failure. However, the industrial computer which 
acts as the WCC III-MCD2 Master Communications Device will 
not automatically reboot unless the power is shut off cleanly and 
then restored cleanly. During most power outages, the incoming 
115 AC voltage could have great fl uctuations before the power 
fi nally fails. In a like manner, brownouts will usually cause the 
industrial computer to “lock-up.” That is to say, the screen will 
continue to display on the monitor, but the cursor will not respond 
to the keyboard commands. To prevent this “lock-up” issue from 
happening to the WCC III-MCD2, an Uninterruptible Power 
Supply (UPS) is required on each and every WCCIII-MCD2 
computer.
An Uninterruptible Power Supply (UPS) provides emergency 
power to keep the WCC III-MCD2 Master Communications 
Device (personal computer) on-line for several minutes after a 
primary power failure. The UPS regulates the incoming power 
to the computer and shuts the power off cleanly several seconds 
after the power outage, or brownout. When the primary power 
is restored, the UPS brings the WCCIII-MCD2 back on-line 
automatically. The WCC III system does not lose any information 
since all of the programs and user entered data are stored on either 
a disk in the MCD, on fi rmware, or on battery backed memory in 
the satellite controllers.
Basic Operating Conditions MCD2
(Master Communications Device)
The WCCIII-MCD has the following specifi cations:
•
A Single Board Computer in a custom wall 
mounted case
•
Processor - Intel
®
Atom™ processor N450 Single
Core
•
Memory – 1 GB SODIMM
•
Hard Drive – Solid State SATA 8 GB Hard Drive. 
Plus a 2 GIG COMPACT FLASH drive for secure 
data backup.
•
4 line by 20 character Dot Matrix LCD display 
with ATX shutdown control.
•
Required I/O
1 - External RS232 port (9 Pin connector)
4 - External USB ports
2 - Internal USB ports
2 - Ethernet Port
System Requirements
Software Updates
WCC III-MCD2 program updates will be made available using 
USB “jump” drives and/or internet downloading.
NOTE:
As of September 1, 2009, all WCCIII-MCDs will only
be shipped with the Linux operating system installed. Older 
Windows XP-based WCCIII-MCDs should be upgraded for 
any future support issues from WattMaster. The Windows 
XP operating system is at the end of long term support with 
Microsoft. Microsoft’s main issues are with continuous 
updates, and the multitude of viruses that are written for 
Windows XP are also of concern. The Linux operating system 
software on the WCCIII-MCD2 must be maintained and 
updated periodically. WattMaster Controls, Inc. can do these 
software updates and upgrades remotely via the internet only 
if the WCCIII-MCD is connected to the internet. This is why 
internet access to the WCCIII-MCD2 is so important. Failure 
to keep the operating system updated could result in a WCC 
III-MCD2 system malfunction. WattMaster Controls, Inc. is 
not responsible for a system failure that is so generated due to 
lack of upgrading or updating because the end customer does 
not provide a static IP connection for the WCC III - MCD2 to 
the internet for WattMaster Controls to connect to.
WCCIII-MCD2 Internet Access
The most common question asked is: Why does the WCCIII-
MCD2 computer need to have Internet access?
•
If WattMaster Controls factory assistance or 
troubleshooting is required for a WCC III system, 
a representative from the factory can access the 
system with a remote computer and view the same 
WCC III Screens as the end user or contractor 
in the building. This allows the end user or the 
contractor for the building installation to talk to the 
factory representative while they are both viewing 
the same screens.
•
The Emailing of important alarm notifi cations for 
up to 60 Email Addresses is provided for from the 
WCCIII-MCD2 device.
•
The ability to send alarm notifi cation via a text 
message to a cellular phone.
•
Secure Remote communications package (WCC 
III software) is provided for FREE. A CD-ROM is 
supplied for installation.
•
World-wide, multiple remote connections (up to 
255 simultaneous connections possible)
•
The ability for internet based tenant override 
requires internet access.
