Operation Manual

Bosch Security Systems, Inc.
Technical Manual
F.01U.196.221
Rev. 08
CHAPTER 4
Battery Module
Battery Module
The battery module is only used to:
• provide power for the ANR when the aircraft does not
• provide power for the ANR when not connected to the aircraft
• provide enhanced audio quality when the audio input module is installed.
Replace the Battery
A battery is required only when you are not plugged into a power source, such as an aircraft audio panel, to power the ANR.
CAUTION: If this is the first time using the batteries, see “Charge the Battery” on page 32.
The batteries can be installed on either ear cup (the left or right).
To replace a battery module, do the following:
1. Align the mounting tab with the mounting tab hole.
2. Slide the battery module into place.
3. Press down on the battery module, snapping it into the ear shell.