ETC CEM3 v1.5.1 - Manual (Page 46)

40 CEM3 User Manual
configuration it will be saved to the server. “No” means you will have to manually
save.
To manually save a configuration to an FTP server, navigate to [Setup]>File
Operations>Save to Server.You can edit the file name prior to saving using the scroll
wheel and the keypad to enter letters.
To load a configuration from an FTP server, navigate to [Setup]>File Operations>Load
from Server and choose the desired file from the list that appears (CEM3 configuration file
names end in “.etc”).
To upgrade CEM3 software from an FTP server, navigate to [Setup]>File
Operations>Load from Server and choose the desired file from the list that appears
(CEM3 software file names end in “.bld”).
Setting Rack DIP Switches and Termination
On the CEM3 backplane, located in the rack behind the CEM3 control module, there is a
small bank of 8 DIP switches. The setting of these switches should be set to match the
specific size, features, and desired behavior of your dimmer rack.
Generally, you should not need to alter these settings as they should have been set when
your system was commissioned by an ETC technician. However in the event that you must
replace your CEM3 control module or backplane, you will need to ensure these settings
match the previous controller.
Use this section to determine the required settings for your dimmer rack. There is also a
label on the underside of the CEM3 that explains the function of each switch.
When setting the DIP switches, you may also need to check the DMX A and DMX B
termination settings for the rack. Reference the backplane label to determine the
appropriate position of the termination switch.
DIPswitch settings
The eight DIP switches relate to behavior, features, or the module size of the rack. In the
descriptions below, switches set in the up position are “On” and switches set in the down
position are “Off”.
DIP 1 - “DBM”
This switch disables the backplane memory so that the configuration is not stored on the
rack itself. Default is “OFF”. If set to “ON”, a Rack Memory Error will be displayed on the
CEM3.
W A R N I N G : To avoid the possibility of electric shock, power must be turned OFF when
you perform this procedure. Before removing dimmer or control modules,
de-energize main feed to dimmer rack and follow appropriate Lockout/
Tagout procedures as described in NFPA Standard 70E. It is important to
note that electrical equipment such as dimmer racks can present an arc
flash safety hazard if improperly serviced. This is due to available large
short circuit currents on the feeders of the equipment. Any work on
energized equipment must comply with OSHA Electrical Safe Working
Practices.