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.

 

200 Ohms

PTC

1

 

 

 

2

+120 V

24 Vdc

 

VMID

circuit breaker

 

trip coil

3

 

 

 

 

 

 

4

 

200 Ohms

PTC

 

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.

 

200 Ohms

PTC

1

 

 

 

2

+120 V

24 Vdc

 

VMID

circuit breaker

 

trip coil

3

 

200 Ohms

PTC

4

Figure 6: EPO Connection Option 2

Install Modules Into the Symmetra RM Frame

 

Œ Ž

 

Œ

 

Œ

 

Œ

 

Œ= Power Module

= Redundant Intelligence Module Ž = 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.

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APC 990-1031, SYPM2KU, SYBT2 installation manual Install Modules Into the Symmetra RM Frame, CL2X