David Clark U9912-BSW User manual

19541P-40 (02-11) 

2011 DAVID CLARK COMPANY INCORPORATED
USER MANUAL
Wireless Belt Station, non-VOX
U9912-BSW U9912-BSW(EU)
(P/N: 40992G-02) (P/N: 40992G-04)

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Ca au ut ti io on ns s a an nd d W Wa ar rn ni in ng gs s
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 avid Clark product,
inspect the contents for shipping damage. If damage is apparent,
immediately file a claim with the carrier and notify your avid Clark
product supplier.
ELECTRICAL HAZARD
-
isconnect electrical power when making any
internal adjustments or repairs. All repairs should be performed by a
representative or authorized agent of the avid Clark Company.
STATIC HAZARD
-
Static electricity can damage components.
Therefore, be sure to ground yourself before opening or installing
components.
LI-POLYMER - This product is used with Li-Polymer batteries. o not
incinerate, disassemble, short circuit, or expose the battery to high
temperatures. Battery must be disposed of properly in accordance
with local regulations.

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O
Ov ve er rv vi ie ew w
The U9912-BSW (40992G-02) 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. Only one gateway/controller is required per
system. Up to four belt stations can be connected to one controller/gateway.
igure 1: Overview of Belt Station
The U9912-BSW non-VOX Wireless Belt Station is commonly used where extremely high and
varying noise levels become challenging to a VOX belt station's settings, resulting in unwanted
noise being present in a VOX belt station user's headset and causing him/her to frequently adjust
the VOX setting. VOX belt stations may be desired in more stable and less extreme noise
environments.

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L
Li in nk ki in ng g
Before a belt station and a controller/gateway 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 units are within 1 to 3 ft (0.3 to 0.9m) of each other.
2. Ensure the U9912-BSW is not already connected (see Status Indication).
3. Simultaneously (within 1-2 sec) press and release the PTT button on the U9912-BSW and
the controller or gateway to link with.
4. Amber LE ’s will flash on both devices. A momentary red LE indicates a successful
close-link.
5. Upon successful link the U9912-BSW will attempt to establish a connection with the
controller/gateway.
6. Upon successfully establishing connection the LE will flash green, a voice alert will be
heard (see Table 1), and user side-tone will be enabled (see Communication).
7. Link and connection are now complete.
Each belt station is able to be linked to only one gateway/controller at a time. A
gateway/controller can have up to six belt stations linked and be connected to four of those six at
one time.
Tip:
Once linked, the devices will not need to be linked again unless they are purged (see
Purging).
S
St ta at tu us s I In nd di ic ca at ti io on ns s
The power button has a multi-color LE in the center which serves as a status indication for the
belt station. Table 1 below lists these states.
Table 1: LED Status Indication
LED Color
Blink Rate
Status
Red
Solid
Initializing/power up
R
ed
Solid
Close
-
link successful
Red
Any
Low battery (approx. 1 hr remaining)
Orange
Slow
Idle/ isconnected
Orange
Fast
Link/Connection in progress
Orange
Solid
PTT asserted
Green
Slow
Connected

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In addition to the LE , 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 eleted” (see
Purging
)
O
Op pe er ra at ti io on n
Power-up/power-down
To power up the U9912-BSW belt station, press and hold the POWER button for approximately
two seconds. The LE 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 U9912-BSW, press and hold the POWER button for approximately two
seconds. The LE will turn red and then turn off. The belt station is now powered down.
Auto Shut-off
Additionally, the belt station will automatically power down if it is disconnected from its
gateway/controller for more than 30 minutes.
Headset
In order for the U9912-BSW to be used, a avid Clark H9900-series headset must be connected.
To connect the headset, align the connectors as shown then push and turn clockwise (see igure
2). There are separate left and right volume controls on the headset.

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Line up
Orange Dots and Twist
igure 2: Headset Connection
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.
igure 3: Wearing the Headset
Communication
epending on the gateway or controller the belt station is paired with, operation will vary. In all
cases the user will hear his own voice (side-tone) only when the belt station is linked to a
controller or gateway. Side-tone 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.
Range
The range of a belt station and a controller/gateway can be up to 300 ft (100m). If you are in an
environment with metal or concrete walls, this range could be reduced. When the belt station
travels out of range of the controller/gateway, a voice alert will indicate that the connection has
been lost. To reconnect, simply move back into range and connection with the
controller/gateway will automatically be reestablished, also noted by a voice alert.

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PTT
The PTT button allows the user to activate the headset's microphone momentarily while
depressed, for communication on the wireless intercom. For more information see the user
manual for the appropriate controller or gateway.
Low Battery
Under typical conditions, the battery in the belt station will last up to 24 hours or longer. A voice
alert will indicate to the user that the battery is running low. Additionally the Status LE will turn
red. At this point, approximately 1 hour of operation remains.
P
Pu ur rg gi in ng g
In some circumstances it may be necessary to “purge” the U9912-BSW of its known controller or
gateway. Typically purging is not necessary unless there are multiple controllers or gateways in
the same vicinity and you wish to link a belt station to a different controller or gateway. A belt
station can be linked to only one controller or gateway at a time.
Purge Procedure
1. Power down belt station (see Power-up/Power-down).
2. Press and hold PTT button. o not release.
3. Power up the belt station (see Power-up/Power-down).
4. Release POWER button.
5. Release PTT button.
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.
B
Ba at tt te er ry y R Re em mo ov va al l & & C Ch ha ar rg gi in ng g
All avid 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 igure 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
igure 4).

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Insert Battery
with Contacts
Down
Lift Door
igure 4: Battery Insertion/Removal
T
Tr ro ou ub bl le es sh ho oo ot ti in ng g
Table 3: Troubleshooting
Problem
Solution
Controller will not turn on
Review
Power
-
up/Power
-
down
procedure
Ensure a fresh battery is installed
Cannot link a belt statio
n
Review
Registration
procedure
Ensure units are within 2ft (0.5m) of each other
No sidetone
Not connected to a Controller/Gatewa
y
Low receive audio
Adjust left/right volume knobs on headset
No audio /intermittent audio
Check headset connection to belt station
R
Re ep pl la ac ce em me en nt t P Pa ar rt ts s
•Battery (P/N: 40688G-90)
•Protective skin, black (A99-01SKN, P/N: 40796G-02)

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Ca ar re e a an nd d M Ma ai in nt te en na an nc ce e
The U9912-BSW is not user serviceable. o not attempt to open the enclosure. If this product
requires service, please contact the avid Clark Co. Inc. Customer Service department:
•Phone: [phone]
•E-Mail: serviceWWW@ avidClark.com
•By Mail: Customer Service
avid Clark Company
360 Franklin Street
Worcester, MA 01604
If necessary, the U9912-BSW may be wiped down with a mild soap and water mixture. Although
it is a sealed device designed to withstand submersion in water to 1 meter, do not unnecessarily
submerse this product in water.
Avoid storage of this product in direct sunlight or high temperature environments.
S
Sp pe ec ci if fi ic ca at ti io on ns s
Frequency Range
1920 MHz
-
1930 MHz (U.S. and Canada)
1880 MHz - 1900 MHz (EU)
Average RF Power Output
4 mW (100mW peak) (U.S. and Canada)
10 mW (250 mW peak) (EU)
Range
300 ft (100m) line
-
of
-
sight (nominal)
Battery Life
24 hrs continuous use (nominal)
Operating Temperature
-
14°F to 113°F (
-
10°C to +45°C)
Storage Tempe
rature
-
4°F to 140°F (
-
20°C to +60°C)
Power Requirements
3.7V @ 100mA nominal
Battery Type
3.7V 2000mAh Li
-
Polymer
F
FC CC C P Pa ar rt t 1 15 5 S St ta at te em me en nt t
RA IO AN TELEVISION INTERFERENCE
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,

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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.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
You may also find helpful the following booklet, prepared by the FCC: "How to Identify
and Resolve Radio-TV Interference Problems." This booklet is available from the U.S.
Government Printing Office, Washington .C. 20402.
* In order to maintain compliance with FCC regulations shielded cables must be used with
this equipment. Operation with non-approved equipment or unshielded cables is likely to result
in interference to radio & television reception.
I
In nd du us st tr ry y C Ca an na ad da a S St ta at te em me en nt t
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.
U
Un na au ut th ho or ri iz ze ed d C Ch ha an ng ge es s
Changes or modifications not expressly approved by avid Clark Company, Inc. could void the
users’ authority to operate the equipment.
U
Us sa ag ge e R Re es st tr ri ic ct ti io on ns s
US Models
ue to the UPCS frequencies used, this product is licensed for operation only in the United States
of America and Canada.
EU Models
ue to the ECT frequencies used, this product is licensed for operation only in the European
Union countries.

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SA AR R S St ta at te em me en nt t
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. Tests for SAR are conducted using standardized methods with the product transmitting at its
highest certified power level in all used frequency bands. The product is designed to meet the
relevant guidelines for exposure to radio waves.
SAR data information for residents in countries that have adopted the SAR limit recommended by
the International Commission of Non-Ionizing Radiation Protection (ICNIRP), which is 0.08 W/kg
averaged over ten (10) gram of tissue (for example European Union, Japan, Brazil and New
Zealand): The highest SAR value for this product when tested for use on the body is 0.275 W/kg.