Backplane settings – ETC Sensor CE Rack (ESR) ECEM to CEM3 Retrofit User Manual
Page 11
2
The Retrofit
9
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.
a: Set both termination switches to “Off” (middle position) for all racks except the
last rack in your system.
b: Set the termination switches for the last rack in the system to “ON” (top
position).
c: Using a precision screwdriver, set the DIP switches to match your rack type
according to:
• number of modules (12, 24, 36 or 48)
• whether the rack has Advanced Features (AF)
Use the following chart to determine your required DIP switch settings:
“On” position = switch pushed to the top
d: Check to see that the “Emergency Contact” switch is set to the appropriate
position.
• If your system has no panic circuit, the switch should be set to the middle
position, “DISABLED”.
• If your panic circuit includes a Normally Open contact closure, the switch
should be set to the top position (NO).
• If your panic circuit includes a Normally Closed contact closure, the switch
should be set to the bottom position (NC).
DIP switch Number
Rack Model
1
2
3
4
5
6
7
8
ESR3-12
On
On
ESR3-12N
On On
On
ESR3-12AF
On
On
On
ESR3-12AFN
On
On On
On
ESR3-24
On
On
ESR3-24N
On On
On
ESR3-24AF
On
On
On
ESR3-24AFN
On
On On
On
ESR3-36
On
On
ESR3-36N
On On On
ESR3-36AF
On
On
On
ESR3-36AFN
On
On On On
ESR3-48
On
ESR3-48N
On On
ESR3-48AF
On
On
ESR3-48 AFN
On
On On
Set termination to “Off”
(middle position)
Set DIP switches
Emergency Contact
(Panic) switch