6
Charging
Ensure that the headset is fully charged prior to operating for the first time.
All headsets have a 2.1mm panel mounted charger jack located on the right ear dome.
A charger cable assembly with a 2.1mm x 5.5mm plug is provided with the headset. The
unterminated end of the charger cable can be wired to nominal 12V (11-16V) from the
vehicle. Plug the terminated end of the charger cable into the headset charger jack (refer to
the “LED Indicators” section for proper operation of the battery charging red LED indicator.
NOTES:
1. Observe correct polarity when connecting the charger cable
to12V from the vehicle. Connect the white striped black wire
to +12V and the solid black wire to GND. This will result in a
positive center terminal of the 2.1mm charger jack as shown
in the illustration.
2. Firecom does not recommend operating the headset while the headset is being
charged. It is recommended that the headset be charged only when it’s not
being operated and with the power switch on the headset turned off.
Firecom recommends charging the wireless headset on the vehicle by
connecting to the vehicle’s uninterruptible 12V supply (battery). The use of
unregulated 12V AC/DC wall adapters is not recommended. However if an
adapter must be used, Sonetics recommends CUI Inc. EPS120050-P5P 12V
0.5A regulated wall adapter or an approved equivalent.
Reset
In rare cases, resetting the headset may become necessary.
With the power switch turned on, plug the charger plug into the charger jack on the right ear
dome. The system will reset, both red and green LEDs will illuminate for approximately two
seconds after which the headset will resume normal operation.
NOTES:
1. In case the battery is deeply discharged, no LED indication will be possible until
the battery is partly charged to an operable voltage level.
2. Plugging the charger plug into the headset at anytime will cause the headset
to reset even when the headset is linked to a base station. Resetting a
connected headset will result in losing the link for about 10-12 seconds
.
Care and Maintenance
To ensure hearing protection and user safety, repairs or replacement of the headset should be
immediately sought if you see any defect such as holes or cracks in the ear domes, ear seals
or headband.
Body oils, perspiration and hair care products will, over time, affect the ear seals. Inspect the
ear seals frequently for signs of wear and replace at approximate 6 month intervals along with
the mic muff (cover).
Do not remove the foam speaker cover.
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Summary of Contents for FHW-10
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