User Manual U9922-G38 (EU)
Contents
1. Each belt station is able to be linked to only one gateway at a time A gateway can have up to six belt stations linked and be connected to four of those six at one time Status Indications The LINK button has a multi color LED in the center which serves as a status indication for the gateway Table 1 below lists these states Table 1 LED Status Indications LED Color Blink Rate Status Red Solid Initializing power up Red Once Connection Dropped Red Once Connection Established Red Any Low battery approx 1 hr remaining Orange Slow Idle Disconnected Orange Fast Linking Connection in Progress Orange Solid PTT asserted Green Slow Connected pattern indicates number of belt stations connected 19541P 73 09 12 4of8 Operation Communication All connected belt stations will be able to communicate with each other through the U9922 G38 EU while in range and per the VOX settings on each VOX belt station Additionally all belt station users will have communication over the intercom f a two way radio is installed to the U9922 G38 EU pressing the PTT button on a VOX belt station will allow the user to transmit over the system s two way radio Pressing the PTT overrides the VOX setting on a VOX belt station Multiple belt station users may PTT and thus speak over the two way radio simultaneously For more information consult the user manual for the belt station Wireless users who are not2. RF Power Output 10 mW 250 mW peak EU Range 500 ft 150m line of sight nominal Operating Temperature 14 F to 131 F 10 C to 55 C Storage Temperature 4 F to 140 F 20 C to 60 C Power Requirements 8 to 32 VDC Unauthorized Changes Changes or modifications not expressly approved by David Clark Company Inc could void the users authority to operate the equipment Usage Restrictions Due to the DECT frequencies used this product is licensed for operation only in the European Union countries and those countries that have approved the DECT EU Standard 19541P 73 09 12 8 of 8
3. has been designed to operate with the antennas listed below and having a maximum gain of 3 dB Antennas not included in this list or having a gain greater than 3 dB are strictly prohibited for use with this device The required antenna impedance is 50 ohms Acceptable antennas for use with this product e Whip Antenna P N 40688G 92 e Remote Antenna Kit Mag Mount P N 40688G 93 e Remote Antenna Kit Permanent P N 40688G 96 19541P 73 09 12 3 of 8 Linking Before a belt station and a 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 2 Ensure units are within 1 to 3 ft 0 3 to 0 9m of each other Simultaneously within 1 2 sec press and release the LINK button on the U9922 G38 EU and the belt station to link with Amber LED s will flash quickly on both devices A momentary red LED indicates a successful close link Upon successful link the U9922 G38 EU will attempt to establish a connection with the belt station Upon successfully establishing connection the LED on the gateway will flash a green pattern corresponding to the number of belt stations connected Once linked the devices will not need to be linked again unless they are purged see Purging
4. pressing PTT while another wireless user is pressing PTT will not be heard on the wired intercom while the PTT remains pressed Intercom Level Adjustment Audio levels can vary between intercoms mainly due to the system level setting on the wired intercom To compensate for this the U9922 G38 EU has the ability to adjust its receive level from the intercom using the Volume knob see Figure 1 Turning this knob will increase or decrease the audio level coming from the wired intercom into the gateway Perform this adjustment to obtain optimum performance Intercom Level Adjustment Procedure 1 Connect at least one belt station to the U9922 G38 EU gateway and ensure sidetone is present see belt station User Manual 2 Begin speaking and slowly turn the Volume knob on the U9922 G38 EU clockwise until you hear an echo of your own voice 3 Continue speaking and turn the Volume knob counter clockwise until the echo stops 4 You may wish to verify communication with someone hard wired to the intercom Radio Level Adjustment Audio levels to and from a two way radio can also vary between radio models and manufacturers To adjust the U9922 G38 EU for a particular radio follow the procedures below 19541P 73 09 12 5 of 8 Radio Transmit Level Adjustment Procedure Note A radio service monitor is recommended for this adjustment 1 Connect at least one belt station to the U9922 G38 EU gateway and ensure sidetone is present see be
5. ch other as well as talk over and listen to a two way radio A C38 xx system cable and optional C3821 radio interface cable are required for this configuration Stand alone Stand alone configuration creates an ad hoc wireless intercom and adds access to a two way radio This configuration does not connect to a 3800 wired intercom system A C99 22PW 18748G 24 power cable and optional C3821 radio interface cable are required for this configuration Expansion Module Expansion module configuration allows up to 16 wireless users to communicate A U9925 GEM Gateway Expansion Module is required along with a C99 22MS interface cable for each U9922 G38 EU gateway to be used and one C98 20PW power cable In this configuration if a two way radio is used it must be connected to the radio input on each gateway Antenna The U9922 G38 EU has two external antenna connections and is supplied with one whip style antenna In most applications a single whip antenna is sufficient However the optional remote antenna kit P N 40688G 93 for mag mount 40688G 96 for permanent install is available should more range be desired In this case we recommend keeping one whip antenna connected directly to the U9922 G38 EU and routing the remote antenna somewhere else such as onthe roof of a vehicle Choose an open clear location for the remote antenna and route the coaxial cable away from any busy areas preferably behind panels or in conduits This device
6. e David Clark WWW DAVIDCLARK COM USER MANUAL 3800 Gateway U9922 G38 EU P N 40995G 02 19541P 73 09 12 2012 DAVID CLARK COMPANY INCORPORATED Cautions and Warnings 19541P 73 09 12 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 Ha NN 140 x DO NOT INSTALL ANY DAVID CLARK COMPANY PRODUCT THAT APPEARS DAMAGED Upon unpacking your David Clark product inspect the contents for shipping damage If damage is apparent immediately file a claim with the carrier and notify your David Clark product supplier ELECTRICAL HAZARD Disconnect electrical power when making any internal adjustments or repairs All repairs should be performed by a representative or authorized agent of the David 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 Do not incinerate disassemble short circuit or expose the battery to high temperatures Battery must be disposed of properly in accordance with local regulations 1of 8 Overview System The U9922 G38 EU 40995G 02 3800 Gateway is a fixed mounted wireless communication device that when used in conjunction with one or m
7. ection has been lost To reconnect simply move back into range and connection with the gateway will automatically be reestablished also noted by a voice alert Purging In some circumstances it may be desired to purge the U9922 G38 EU of some of its linked belt stations Typically purging is not necessary unless there are multiple gateways in the same vicinity and you wish to remove a belt station from this gateway and link to a different gateway A gateway can link up to six belt stations where a belt station can be linked to only one gateway at atime 19541P 73 09 12 6 of 8 Smart Purge A smart purge is the purge method employed for the U9922 G38 EU in which only unwanted links are removed from the gateway When this procedure is complete only belt stations that are connected to the gateway remain linked All other belt station links will have been removed see the belt station User Manual for the individual belt station purging procedure when remaining link purging may be necessary Smart Purge procedure 1 Ensure gateway is powered on and functioning 2 Disconnectall belt stations to be purged power off the belt stations 3 Verify the number of green LED flashes on the gateway matches the number of belt stations to be kept linked 4 Press and hold LINK button on the gateway for 30 seconds until LED quickly flashes red 5 Release LINK button Troubleshooting Table 2 Troubleshooting Problem Solution Ga
8. lt station User Manual 2 Openthe cover ofthe U9922 G38 EU and find the large silver knob Press and hold the PTT and speak clearly and loudly into the microphone 4 Slowlyturn the knob until the radio service monitor reads 4 0 4 5kHz deviation a Clockwise to increase level counter clockwise to decrease w Radio Receive Level Adjustment Procedure 1 Connect at least one belt station to the U9922 G38 EU gateway and ensure side tone is present see belt station User Manual 2 Open the cover of the U9922 G38 EU and find the large silver knob 3 Tune the radio to a continuous transmission such as NWS or transmit a test signal from another radio 4 Adjust the volume control on the radio to a level slightly higher than typical 5 Slowly turn the knob until you hear a loud and clear signal on the wireless intercom a Clockwise to increase level counter clockwise to decrease Range The range of a belt station and a gateway can be up to 500ft 150m If you are in an environment with metal or concrete walls this range could be reduced If the belt station enters into a fringe reception area a brief sequence of three beeps will be heard in the headset This is to serve as a warning of a possible disconnection if conditions are not improved When possible the user should attempt to regain line of sight contact with the controller When the belt station travels out of range of the gateway a voice alert will indicate that the conn
9. ore U9910 BSW EU 40992G 03 or U9912 BSW EU 40992G 04 Wireless Belt Stations becomes part of a wireless intercom system The U9922 G38 EU provides communication for up to four users as well as an interface to an existing David Clark Model 3800 wired intercom system Additionally the U9922 G38 EU can be used as a stand alone wireless intercom gateway with two way radio interface Up to four U9922 G38 EU gateways can be connected for up to 16 wireless users on one system by using the U9925 GEM 40995G 03 Gateway Expansion Module See U9925 GEM User Manual for details Antenna Status LED Input p x A Radio Input 19541P 73 09 12 Q VOLUME LINK 7 o o Figure 1 Overview of Gateway 2of8 Installation Intercom Interface The U9922 G38 EU can be configured in one of three ways 3800 Interface Stand alone and Expansion Module 3800 Interface This configuration adds wireless capability to an existing 3800 wired intercom system and can replace a U3811 or U3815 radio interface module see 3800 system documentation for further details In this way all wired and wireless users may communicate with ea
10. teway will not turn on Review Installation procedure Ensure wiring is correct Cannot link a belt station Review Linking procedure Ensure units are within 1 to 3ft 0 3 to 0 9m of each other while linking Try a Smart Purge Cannot speak over two way PTT not pressed radio No radio connected to U9922 G38 EU Replacement Parts 19541P 73 09 12 System cable C38 xx number after dash indicates length in feet Power Cable C99 22PW P N 18748G 24 Radio Interface Cable C3821 P N 18747G 06 Whip Antenna P N 40688G 92 Remote Antenna Kit Mag Mount P N 40688G 93 Remote Antenna Kit Permanent P N 40688G 96 7 of 8 Care and Maintenance The U9922 G EU is not user serviceable Do not attempt to open the enclosure unless adjusting the radio level per the procedures noted in this manual If this product requires service please contact the David Clark Customer Service department e Phone 800 298 6235 e E Mail serviceWWW DavidClark com e ByMail Customer Service David Clark Company 360 Franklin Street Worcester MA 01604 If necessary the U9922 G38 EU 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 Specifications Frequency Range 1880 MHz 1900 MHz EU Average
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