USER MANUAL Wireless Belt Station U9910-BSW (P/N: 40992G-01) 19541P‐39 (02‐11) U9910-BSW(EU) (P/N: 40992G-03) ©2011 DAVID CLARK COMPANY INCORPORATED
Cautions and Warnings READ AND SAVE THESE INSTRUCTIONS. Follow the instructions in this installation manual. These instructions must be followed to avoid damage to this product and associated equipment. Product operation and reliability depends on proper usage. DO NOT INSTALL ANY DAVID CLARK COMPANY PRODUCT THAT APPEARS DAMAGED. Upon unpacking your David Clark product, inspect the contents for shipping damage.
Overview The U9910‐BSW (40992G‐01) Wireless Belt Station is a portable wireless communication device that when used in conjunction with a U9911‐BSC (41033G‐01) Controller Belt Station or one of the U9900‐series gateways becomes part of a wireless intercom system. Up to five users are able to communicate with each other when using the U9911‐BSC. Up to four users are able to communicate with each other and also with a two‐way radio or other wired intercom system when using one of the U9900‐series gateways.
3. Simultaneously (within 1‐2 sec) press and release the LINK/PTT button on the U9910‐ BSW and the controller or gateway to link with. 4. Amber LED’s will flash quickly on both devices. A momentary red LED indicates a successful close‐link. 5. Upon successful link the U9910‐BSW will attempt to establish a connection with the controller/gateway. 6.
Operation Power‐up/power‐down To power up the U9910‐BSW belt station, press and hold the POWER button for approximately two seconds. The LED will turn red and then begin flashing orange. If the belt station has been linked to a controller or gateway and that controller or gateway is in range, the belt station will automatically connect within a few seconds. To power down the U9910‐BSW, press and hold the POWER button for approximately two seconds. The LED will turn red and then turn off.
Figure 3: Wearing the Headset VOX (Voice Activation) The U9910‐BSW has an innovative voice activation (VOX) system. VOX is intended to prevent background noise from being unintentionally picked up by the microphone while detecting and allowing voice communications. The VOX knob (see Figure 1) controls the threshold at which the mic becomes “hot”. When the mic is hot you will hear your own voice and other connected users will hear you as well.
Communication Depending on the gateway or controller the belt station is paired with, operation will vary. In all cases the user will hear his own voice (sidetone) only when the belt station is connected to a controller or gateway and VOX is properly adjusted. Sidetone provides feedback for the user to know he is connected and is being heard by the remote users as well. In general, if you can hear your own voice, the other users can hear you as well.
6. A voice alert will indicate that the connection has been deleted. When this procedure is complete, the belt station will not automatically connect to a controller/gateway and must be linked again.
Battery Removal & Charging All David Clark 9900‐series wireless belt stations and battery operated controllers use a 3.7V Li‐ Polymer rechargeable battery. This battery is removed by loosening the battery release screw (See Figure 1). These batteries are charged with the A99‐04CRG 4‐bay battery charger (41034G‐ 01). When installing a battery, take care to align the battery properly and fully tighten the screw (see Figure 4).
Care and Maintenance The U9910‐BSW is not user serviceable. Do not attempt to open the enclosure. If this product requires service, please contact the David Clark Customer Service department: • Phone: 800.298.6235 • E‐Mail: serviceWWW@DavidClark.com • By Mail: Customer Service David Clark Company 360 Franklin Street Worcester, MA 01604 If necessary, the U9910‐BSW may be wiped down with a mild soap and water mixture.
may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ‐ Reorient or relocate the receiving antenna. ‐ Increase the separation between the equipment and the receiver.
SAR Statement Radio wave exposure and Specific Absorption Rate (SAR) information This product has been designed to comply with applicable safety requirements for exposure to radio waves. These requirements are based on scientific guidelines that include safety margins designed to assure the safety of all persons, regardless of age and health. The radio wave exposure guidelines employ a unit of measurement known as the Specific Absorption Rate, or SAR.
