USER MANUAL Push Back Gateway U9920-GPB(EU)
Contents
1. After this procedure no belt stations will automatically connect to this gateway until linked Full Purge procedure 1 Power down gateway see Power up Power down Press and hold PTT button Do not release Power up the gateway see Power up Power down Release POWER button Release PTT button Status LED will flash red to indicate successful purge AM PWN Smart Purge A smart purge is a purge 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 Disconnect all 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 7 of 10 19541P 71 09 15 Battery Removal amp Charging All David Clark 9900 series wireless belt stations and battery operated controllers gateways 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 O4CRG 4 bay batt2. Release PTT 6 You may wish to verify communication with the pilot or someone hard wired to the aircraft s intercom Wn Communication All connected belt stations will be able to communicate with each other through the U9920 GPB EU while in range Additionally all belt station users will always hear any traffic on the aircraft intercom To speak over the aircraft intercom the belt station user must press and hold his her PTT button U9910 BSW EU and U9912 BSW EU only U9913 BSW EU users cannot transmit over the aircraft intercom Multiple belt station users may PTT and thus speak over the aircraft intercom simultaneously Wireless intercom for all connected belt station users is also achieved in this manner For more information consult the user manual for the belt station Note A non VOX belt station U9912 BSW EU is recommended for single user wireless push back systems as this will eliminate the potential for extremely high and varying noise levels within an airport environment to be unintentionally picked up by the microphone causing the microphone to become hot and introduce background noise into the user s headset Range The range of a belt station and a gateway can be up to 500 ft 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
3. 40992G 03 U9912 BSW EU 40992G 04 or U9913 BSW EU 40992G 17 Wireless Belt Stations provides communication for up to four users as well as an interface to an aircraft intercom system Only one gateway is required per system Up to four belt stations can be connected to one gateway a Aircraft sS CS Hook Rx Adjust Connector Button Banner Model U9920 GPB EU Push Back Gateway Battery Compartment Battery Release Screw Figure 1 Overview of Gateway 2 of 10 19541P 71 09 15 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 Ensure power is on for both U9920 GPB EU and belt station see Power up Power down 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 PTT button on the U9920 GPB EU and the belt station to link with Amber LED s will flash on both devices A momentary red LED indicates a successful close link Upon successful link the U9920 GPB 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
4. WWW DAVIDCLARK COM USER MANUAL Push Back Gateway U9920 GPB EU P N 40993G 02 19541P 71 09 15 2015 DAVID CLARK COMPANY INCORPORATED Cautions and Warnings 19541P 71 09 15 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 NK LY amp 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 1 of 10 Overview The U9920 GPB EU 40993G 02 Push Back Gateway is a portable wireless communication device that when used in conjunction with one or more U9910 BSW EU
5. as an audible indication 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 prompt will indicate that the connection has been lost To reconnect simply move back into range and connection with the gateway will automatically be reestablished also noted by a voice prompt 6 of 10 19541P 71 09 15 Low Battery Under typical conditions the battery in the gateway will last up to 24 hours or longer The Status LED turns red to indicate that the battery is running low Additionally a voice prompt Gateway Low Battery is transmitted to all connected belt stations This voice prompt is not heard by the pilot of the aircraft At this point approximately 1 hour of operation remains Auto Shut Off The U9920 GPB EU will automatically shut off 30 minutes after the last belt station is disconnected Purging In some circumstances it may be desired to purge the U9920 GPB 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 Full Purge A full purge is a purge method which clears all links in the gateway
6. equired between the U9920 GPB EU and the aircraft see below Figure 2 connection illustration and Table 2 Push Back Cable matrix 4 of 10 19541P 71 09 15 Line up Orange Dots and Twist Figure 2 Push Back Cable Connection Table 2 Push Back Gateway Interface Cable Matrix Part Number Configuration 41035G 02 Stereo Plug 41035G 03 U 174 U Plug Civilian Only 41035G 04 Dual G A Plugs PJ 055 PJ 068 41035G 05 U 174 U Plug Military Only 41035G 06 7 Pin MS Connector Military Only 41035G 08 6 Pin MS Connector Military Only 41035G 09 7 Pin MS Connector Military Only The included lanyard and hook assembly with Remove Before Flight banner see Figure 1 facilitates the temporary mounting of the U9920 GPB to an aircraft Care and judgement should be exercised when attaching to any part of the aircraft so that damage does not occur to the aircraft or the gateway Important Note Proper positioning of the U9920 GPB to ensure proper line of sight between system users and the gateway is essential to ensuring optimal wireless range and robustness of communications for all system users during operation Establishing proper line of sight typically involves at a minimum hanging the gateway low enough under the fuselage and any obstructions i e landing gear doors and or engines so that the tow operator and wing walkers can see the unit when they are at their working positions pr
7. ery charger 41034G 01 When installing a battery take care to align the battery properly and fully tighten the screw see Figure 3 Insert Battery with Contacts Down Figure 3 Battery Insertion Removal Troubleshooting Table 2 Troubleshooting Problem Solution Gateway will not turn on Review Power up Power down procedure Ensure a fresh battery is installed Cannot link a belt station Review Registration procedure Ensure units are within 1 to 3ft 0 3 to 0 9m of each other while linking Try a Full Purge Cannot speak to aircraft PTT not pressed 8 of 10 19541P 71 09 15 Replacement Parts e Battery P N 40688G 90 e Protective skin orange A99 02SKN P N 40796G 03 e Aircraft Interface Cord Stereo plug P N 41035G 02 e Aircraft Interface Cord U 174 U plug Civilian Only P N 41035G 03 e Aircraft Interface Cord dual General Aviation plugs Saab others P N 41035G 04 e Aircraft Interface Cord U 174 U Plug Military Only P N 41035G 05 e Aircraft Interface Cord 7 pin MS Connector Military Only P N 41035G 06 Care and Maintenance The U9920 GPB EU 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 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
8. icates when an audible connection has been lost due to voice prompt the user travelling out of range from its host gateway or from inadequate line of sight conditions Connection Deleted Indicates when a user s belt station has been successfully voice prompt purged from its host gateway 3 Beep Sequence Indicates when a user has entered a fringe reception area where connection could potentially be lost if conditions are not improved Continuous Tone VOX Adjustment Prompt Indication of higher sensitivity Approximately 5 second settings during VOX adjustment see VOX Adjustment duration Procedure Section Operation Power Up Power Down To power up the U9920 GPB EU Push Back Gateway press and hold the POWER button for approximately two seconds The LED will turn red and then begin flashing orange If there are linked belt stations within range they will automatically connect to the gateway in a few seconds after power up To power down the U9920 GPB EU press and hold the POWER button for approximately two seconds The LED will turn red and then turn off The gateway is now powered down Aircraft Interface e The U9920 GPB EV is designed for airport push back operations and can be connected to an aircraft intercom system Once connected up to four belt station U9910 BSW EU or U9912 BSW EU users can communicate to the pilot of the aircraft by pressing the PTT button on the belt station A Push Back Cable is r
9. ior to pushing the aircraft The lanyard assembly is adjustable in length from approximately 3 feet 1m minimum to 6 feet 2m maximum to ensure that proper line of sight is achieved when hanging the gateway from the aircraft To adjust slide the nylon strap in the appropriate direction through the adjustment buckle and pull the hook to the opposite end of the lanyard away from the gateway Attach the hook to the aircraft check the length for appropriate gateway positioning and readjust as necessary until optimum positioning is achieved WARNING ALWAYS REMOVE THE GATEWAY AND ALL ASSOCIATED ITEMS FROM THE AIRCRAFT WHEN OPERATIONS ARE COMPLETE 5 of 10 19541P 71 09 15 Aircraft Level Adjustment Audio levels can vary between aircraft To compensate for this the U9920 GPB EU has a receive level adjust knob see Figure 1 Turning this knob will increase or decrease the audio level coming from the aircraft and into the wireless intercom By adjusting this knob optimum performance can be achieved Receive Level Adjustment Procedure 1 Connect at least one belt station to the U9920 GPB EU gateway and ensure sidetone is present see belt station User Manual 2 Press and hold PTT 3 While holding PTT begin speaking and slowly turn Receive Level Adjust knob on the U9920 GPB EU gateway clockwise until you hear an echo of your own voice 4 Turn the Receive Level Adjust knob slightly counter clockwise until the echo stops
10. necessary the U9920 GPB EU may be wiped down with a mild soap and water mixture Although it is designed as a water tight device 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 RF Power Output 10 mW 250 mW peak EU Range 500 ft 150m line of sight nominal Battery Life 24 hrs continuous use nominal Operating Temperature 14 F to 113 F 10 C to 45 C Storage Temperature 4 F to 140 F 20 C to 60 C Power Requirements 3 7V 100mA nominal Battery Type 3 7V 2000mAh Li Polymer 9 of 10 19541P 71 09 15 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 10 of 10 19541P 71 09 15
11. number of belt stations connected Once linked the devices will not need to be linked again unless they are purged see Purging Each belt station is able to be linked to only one gateway at a time A gateway can have up to five belt stations linked and be connected to four of those five at one time Status Indications Visual Indications The power button has a multi color LED in the center which serves as a visual 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 Link Connection in Progress Orange Solid PTT asserted Green Slow Connected pattern indicates number of belt stations connected 19541P 71 09 15 3 of 10 Audible Indications The Series 9900 System provides each active system user with a series of audible status indications in the form of either voice prompts or beeps which serve to direct the user s attention to related system performance conditions Table 2 below lists these conditions Table 2 Audible Status Indications Indication Status Connection Established Indicates an audible connection to a gateway and all voice prompt mutually linked users Connection Lost Ind
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