background image

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. 

+

Summary of Contents for FHW-10

Page 1: ...eadset Series UHW 10 20 Under the Helmet FHW 10 Over the Head Operation Manual 7340 SW Durham Road Portland OR 97224 USA Phone 503 684 6647 1 800 527 0555 Fax 503 620 2943 email sales firecom com www firecom com ...

Page 2: ......

Page 3: ...the Helmet Headsets Adjustable headstrap Volume control Push To Talk PTT button Adjustable headstrap UHW 10 Under the helmet wireless headset with a red momentary PTT button for transmitting on the vehicle radio UHW 20 Under the helmet wireless headset with a black momentary PTT button to key the microphone for intercom communications UH Over the Head Headsets Push To Talk PTT button Volume contro...

Page 4: ... worn as instructed Any modification to the hearing protector such as drilling holes in the dome painting or reforming the headband spring will negatively impact the hearing protector s performance and hearing damage could occur Federal law requires the following statements Although hearing protectors can be recommended for protection against the harmful effects of impulsive noise the Noise Reduct...

Page 5: ... communication between the base station and the headset will become possible Out of Range Warning The UHW FHW wireless headsets incorporate an out of range warning as a safety feature to warn the user against exceeding the coverage range of the headset The headset will sound a 1 second cautionary beep every 10 seconds when the headset is at the fringes of the cover age range and before the headset...

Page 6: ...LED flashing slowly Note When the battery is very low the headset will also sound an audible 6 tone pattern once every minute Very low battery headset linked to base green LED on red LED flashing slowly Power on charger plugged Charging headset linked to base green LED on red LED on Charging complete headset linked to base green LED on red LED off Charging headset not linked to base green LED flas...

Page 7: ...unications However press and hold the red button to transmit over the vehicle radio Release the button to terminate radio transmission Pairing Procedure 1 Press and hold the pairing button on the front panel of the base station for approximately 5 7 seconds until the yellow LED s on the front panel of the base station start flashing indicating that the base station has entered pairing mode Once th...

Page 8: ...he 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 gree...

Page 9: ... Amb Noise Level 125dB SPL re 20 uPa MIC Sensitivity 44 5db 0dB 1v Pa DC Bias Internally biased Frequency range 300Hz 3 4KHz Noise Canceling approx 6 25 db octave from 3 4 KHz down to 300 Hz S N ratio 60db minimum Impedance Internally matched RF Range 1100 open field 100 minimum from base station depending on base station mounting position on the fire or emergency truck Digital encoding for secure...

Page 10: ...ycle life 500 cycles minimum Over voltage under voltage over current and over temperature protection Charge source 12V nominal 11 16v 0 25A minimum Charge time 3 hours max from deeply discharged state Environmental Operating temperature 10 to 70oC Storage temperature 25 to 85oC Meets standards SAE J1455 and J1113 Chemical resistance corrosion and humidity per MIL STD 810 Package Contents UHW 10 He...

Page 11: ...s warranty does not apply in the event of accident abuse improper installation unauthorized repair tampering modification fire flood collision or other damage from external sources including damage which is caused by user replaceable parts leaking batteries etc This warranty does not extend to any other equipment or apparatus to which this product may be attached or connected The foregoing is your...

Page 12: ...mail sales firecom com www firecom com Copyright 2008 Sonetics Corporation All rights reserved The information in this document is subject to change without notice No part of this document may be reproduced in any form without prior written consent of Sonetics Corporation This document is part number 600 0074 00 RevC Patent pending ...

Reviews: