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Use one of the following cable types to connect the Symmetra RM to the EPO switch:
CL2 Class 2 cable for general use.
CL2P Plenum cable for use in ducts, plenums, and other spaces used for environmental air.
CL2R Riser cable for use in a vertical run in a shaft of from floor to floor.
CL2X Limited use cable for use in dwellings and for use in raceway.
For installation in Canada: Use only CSA Certified, type ELC (extra-low voltage control cable).
Connection Option 1
An electrician must connect 1 to 2. Then, both 3 and 4 must be connected to a normally open (NO) switch
contact.
PTC
PTC
200 Ohms
200 Ohms
+120 V
VMID
24 Vdc
circuit breaker
trip coil
1
2
3
4
Figure 5: EPO Connection Option 1
Connection Option 2
An electrician must connect the 12 Vdc source and a normally open (NO) switch contact to 2 and 3.
PTC
PTC
200 Ohms
200 Ohms
+120 V
VMID
24 Vdc
circuit breaker
trip coil
1
2
3
4
Figure 6: EPO Connection Option 2
Install Modules Into the Symmetra RM Frame
= Power Module
= Redundant Intelligence Module
= Main Intelligence Module
= Battery Module
Figure 7: Bay Identification
The intelligence modules are shipped in the Symmetra RM frame. After the frame is installed in the rack you
must install the power and battery modules into the frame.