Change out the af cards (if present), Change out the beacon pcb, N o t e – ETC Sensor+ Rack (SR+ HSR+) CEM+ to CEM3 Retrofit User Manual
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CEM3 Sensor+ Rack Retrofit Manual
Change out the AF Cards (if present)
If your rack supports Advanced Features (AF) you will need to replace the AF cards as well.
AF cards are located on the right side of the dimmer module slot between the copper
neutral busses and the dimming circuitry cards.
To replace the AF cards:
Step 1:
Remove the old AF cards by flipping the white
retainer tab on the cards into the down
position.
Step 2:
Pull the old cards out of the slots.
Step 3:
Set the DIP switches on the new cards
according to the chart below. Only the first two
DIP switches are used.
Step 4:
Slide the new AF cards completely into the
vacant slots starting with card #1 in the top.
The number of cards depends on rack size.
Step 5:
Flip the white tab up to lock the new card in
place.
Change out the Beacon PCB
Step 1:
Remove the top four dimmer modules from the rack to allow access to the PCB.
Step 2:
Remove the two screws that hold the beacon PCB in the face of the rack.
Step 3:
Pull the PCB down from inside the rack
case. (The wire harness will only allow a
few inches of movement).
Step 4:
Note the orientation of the connector and
unplug the wire harness from the old
beacon PCB.
Step 5:
Attach the wire harness to the new
beacon PCB making sure the connector
is in the same orientation as before.
Step 6:
Install the new beacon PCB (ETC Part #
7050B5109) with two screws (ETC Part #
HW222) (two new screws of the same type are provided in case the old ones
were damaged during the removal process).
N o t e :
Be sure to use a properly sized screw driver (#2 Phillips) and a good amount of
force as these screws are kept in place with a thread locker. Don’t worry about
damaging the existing screws (replacements are provided) or shearing off the
heads of the screws (the screw shanks are threaded into the PCB’s standoffs).
Flip tab down, pull card out
1
2
AF Card Addressing
Card 1
Card 2
Card 3
Card 4
S
W
1
S
W
2
S
W
3
S
W
4
S
W
5
S
W
6
S
W
7
S
W
8
1 SR3-6
SR3-12
SR3-24
SR3-48
2
3
4
Sensor+
New blue-LED
beacon PCB