APC 208V Leaflet

Connect each additonal extended run cabinet to the previously installed 
cabinet. The Symmetra LX supports a maximum of seven cabinets.

2.1 Remove the screw and UPS battery connector panel 

 from the 

previously installed cabinet.

2.2 Connect the power cable 

 from the new cabinet into the battery 

connector 

 of the previous cabinet.

2.3 Set the dial 

 of the new cabinet to a number that is one higher 

than that of the previous cabinet 

.

2.4 Connect the communications cable 

 from the communications 

connector of the new cabinet 

 to that of the previous cabinet 

.

3.1 Check that the green status light on the rear of each cabinet will light.

3.2 Check that the front display shows the correct dial number.

3.3 Refer to the status menu on the UPS PowerView display (see the 

Symmetra LX Operations Guide) to verify that the number of battery 
modules matches the total number of battery modules installed in the 
UPS and all extended run cabinets. Also, verify there are no bad 
battery modules present.

• To verify the connection, the UPS must be on. For further 

information, see the Symmetra LX Start-Up Guide. 

• Messages regarding battery quantity may be visible on the UPS 

PowerView display.

It is assumed that the Symmetra LX is powered and functioning during these startup 
procedures. If the problem persists, call technical support. Visit the the APC website at 
http://www.apc.com/support for contact information.

The green status LED (rear 
of frame), and the front 
display (front of frame) do 
not light after the 
communication cable is 
installed.

There is no battery power 
present at the frame.

Check that the battery cable 
and battery modules are 
properly installed.

The communication cable is 
not installed

Check that the 
communication cable is 
properly installed.

The green status LED 
lights, but the front display 
does not show the frame 
number.

The display cable is not 
connected.

See the Extended Run 
Cabinet Physical Installation 
Guide for proper cable 
connection instruction.

There is a potential hardware 
failure.

Call technical support. 

The front display 
continuously flashes on 
and off.

More than one frame is set 
with the same frame number.

Check that frame numbers 
are not duplicated on the 
communication card(s).

An “XR frame failure” is 
reported. The front display 
flashes an error code.

The “E_O” frame error code 
may indicate that the battery 
cable is not installed.

Check that the battery cable 
is properly installed. If the 
error code continues to flash, 
call technical support.

The “E_7” frame error code 
may indicate that the 
communication cable is not 
installed

Check that the 
communication cable is 
properly installed. If the error 
code continues, call 
technical support.

All other LED error codes 
could indicate a potential 
hardware failure.

Call technical support and 
report the error code.

The front display 
alternately flashes the 
frame number and either 
“Lx” , “Cx”, or “Rx”. 

A failed battery module has 
been detected in the location 
displayed.

Replace the battery module. 
To obtain a replacement 
battery, see the APC 
website.

The number of battery 
modules reported is 
inaccurate.

One or more battery module 
disconnect switches are off 
(opened).

Check that the disconnect 
switch on all modules is 
closed (counter-clockwise).

Battery modules are not 
installed correctly.

Check that all battery 
modules are properly 
installed in the extended run 
frame(s).