User's Guide _______________________________________________________________________
50 ___________________________________________________________________ M211107EN-C
1303-061
Figure 25 Obstruction Light Wiring
Inserting Battery for Optional FSB101
In case an optional battery backup FSB101 is used, a battery charger
module QBR101 is located inside the interface unit. A 2 Ah battery is
packed separately and should be inserted into the interface unit as
follows:
1. Remove the upper interface unit enclosure and open the interface
unit with the provided key.
NOTE
Make sure the AC (mains) power and the battery backup are both OFF
before you proceed with the next steps.
2. Open the four screws holding the cover plate for the battery and
remove it. See Figure 26 on page 51.