8
CEM3 Rack Retrofit Manual
Backplane Settings
Upgrade kit backplanes ship from the factory with all DIP switches in the off (down) position. You will
have to set the DIP switches on the new backplane to match your rack. You will also have to verify the
termination switch settings.
1:
Set the DMX termination switches for each port to "Off" unless the port is the last position in
the DMX chain.
• If there are both DMX In and Thru connections to the port, the enclosure is not last in the
chain. DMX Thru connections can be made either using two pairs of wires in one terminal
block, or using the DMX Thru connector.
• If there is only one set of DMX wires in the connector and the DMX Thru is not used, the
enclosure is the last in the chain.
• If there is no DMX wire connected, leave the termination switches off.
2:
Using a precision screwdriver, set the DIP switches to match your enclosure type according to:
• number of modules (6, 12, 24, or 48)
• whether the enclosure has Advanced Features (AF)
Use the following chart to determine your required DIP switch settings:
“On” position = switch pushed to the top
DIP switch Number
Enclosure Model
1
2
3
4
5
6
7
8
SR3-6
On On
SR3-6AF
On
On On
SR3-12
On
SR3-12 AF
On
On
SR3-24
On
SR3-24 AF
On
On
SR3-48
SR3-48 AF
On
Set termination to “Off”
(middle position)
Set DIP switches
