USER MANUAL Controller Belt Station U9911-BSC (P/N: 41033G-01) 19541P‐44 (02‐11) U9911-BSC(EU) (P/N: 41033G-02) ©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 U9911‐BSC (41033G‐01) Controller Belt Station is a portable wireless communication device that when used in conjunction with one or more U9910‐BSW (40992G‐01) or U9912‐BSW (40992G‐02) Wireless Belt Stations becomes part of a wireless intercom system. Up to five users are able to communicate with each other when using the U9911‐BSC. Only one controller is required per system. Up to four belt stations can be connected to one controller.
Linking Before a belt station and a controller can be connected, they must first be linked. As a security measure, the close‐link feature requires devices to be in proximity of about 1 to 3 ft (0.3 to 0.9m) in order to successfully link. This ensures that the units are not inadvertently linked with other units on the premises. Linking procedure: 1. Ensure power is on for both U9911‐BSC and belt station (see Power‐up/Power‐down). 2. Ensure units are within 1 to 3 ft (0.3 to 0.9m) of each other. 3.
In addition to the LED, the belt station provides audio feedback for certain conditions as well. Table 2 below lists these conditions. Table 2: Voice Alerts Voice Alerts “Connection Established” “Connection Lost” “Low Battery” “Connection Deleted” (see Purging) Operation Power‐up/power‐down To power up the U9911‐BSC controller belt station, press and hold the POWER button for approximately two seconds. The LED will turn red and then begin flashing orange.
It is also important to properly wear the headset and correctly position the microphone. For optimum noise‐cancelling performance, position the microphone 1/8” to 1/4” (3‐6 mm) from your lips. Figure 3: Wearing the Headset VOX adjustment The U9911‐BSC 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.
Tip: • • Turning the VOX knob fully clockwise will turn off the microphone. Conversely, turning the VOX knob fully counter‐clockwise will cause the microphone to be “hot” all the time. Communication The user will hear his own voice (side‐tone) only when the controller is connected to a belt station and VOX is properly adjusted. Side‐tone provides feedback for the user to know he is connected and is being heard by the remote users as well.
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). The 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 3).
Replacement Parts • • Battery (P/N: 09525P‐23) Protective skin, black (A99‐01SKN, P/n 40796G‐02) Care and Maintenance The U9911‐BSC is not user serviceable. Do not attempt to open the enclosure. If this product requires service, please contact the David Clark Co., Inc Customer Service department: • Phone: 800.298.6235 • E‐Mail: serviceWWW@DavidClark.
Specifications Frequency Range Average RF Power Output Range Battery Life Operating Temperature Storage Temperature Power Requirements Battery Type 1920 MHz ‐ 1930 MHz (U.S. and Canada) 1880 MHz ‐ 1900 MHz (EU) 4 mW (100mW peak) (U.S. and Canada) 10 mW (250 mW peak) (EU) 300 ft (100m) line‐of‐sight (nominal) 24 hrs continuous use (nominal) ‐14°F to 113°F (‐10°C to +45°C) ‐4°F to 140°F (‐20°C to +60°C) 3.7V @ 100mA nominal 3.
Industry Canada Statement This device complies with Industry Canada licence‐exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device. Unauthorized Changes Changes or modifications not expressly approved by David Clark Company, Inc. could void the users’ authority to operate the equipment.
