CeoTronics CT-DECT-H24 DECT Headset User Manual CT GateCom System II

CeoTronics AG DECT Headset CT GateCom System II

Contents

users manual

CT-GateCom II.24Full duplex communication system for aircraft push-backDescription and OperationContents1. Important safety instructions ............................................................................................................. 22. Description ........................................................................................................................................ 52.1 General.......................................................................................................................................... 52.2 Communication circuits ................................................................................................................. 52.3 System overview ........................................................................................................................... 52.4 Communication Headsets ............................................................................................................. 52.5 Transmitter/Receiver Unit CT-GateCom II.24/Multi....................................................................... 92.6 Transmitter/Receiver Headset CT-GateCom II.24 ........................................................................ 92.7 Aircraft Interface CT-GateCom II.24+4........................................................................................102.8 Battery chargers .......................................................................................................................... 113. On-air subscription.......................................................................................................................... 123.1 General........................................................................................................................................ 123.2 On-air subscription of the first Transmitter/Receiver Unit of group 1........................................... 133.3 On-air subscription of the second Transmitter/Receiver Unit of group 1..................................... 133.4 On-air subscription of the first and second Transmitter/Receiver Unit of group 2 ....................... 134. Commissioning and operation......................................................................................................... 144.1 Aircaft Interface ........................................................................................................................... 144.2 Headsets and Transmitter/Receiver Units................................................................................... 144.3 Switching on, adjusting the speaker volume ............................................................................... 154.4 Connection setup and release by the Transmitter/Receiver Unit(s) ............................................ 154.5 End of operation .......................................................................................................................... 165. Safekeeping – storage .................................................................................................................... 166. Recharging the batteries................................................................................................................. 167. Maintenance.................................................................................................................................... 177.1 Visual inspection.......................................................................................................................... 177.2 Cleaning ...................................................................................................................................... 177.3 Replacing the windshield on the headset microphone ................................................................ 177.4 Replacing the ear cushions of the headset muffs........................................................................ 178. Accessories and consumable parts ................................................................................................ 17
21. Important safety instructionsWhen using CeoTronics products do not fail to comply with the following safetyinformation:zBefore using CeoTronics products read completely the appropriate operating instructions. If in doubt,ask our technical staff.zIf repair work of any kind needs to be done to CeoTronics products, arrange for it to be performedonly by the company CeoTronics or by a specialized workshop that is authorized by CeoTronics. Inall other cases our warranty and liability for the product shall lapse.zIf products are operated on a mains voltage, always pull the mains plug out of the mains plug socketbefore opening such products (e.g. for servicing purposes) !zDo not store CeoTronics products outside or in damp ambient conditions. At all times keep themclean, dry and at normal air humidity. CeoTronics products must not be stored in areas with atemperature of over +80° C (+176° F), e.g. in the summertime on the parcel shelf of a car. If notstated otherwise, the following temperature ranges are allowed for CeoTronics products: -10 to+55° C (+14 to +131° F) for operation, -40 to +80° C (-40 to +176° F) for storage.zDo not immerse a CeoTronics product into water, if it is not expressly specified for this purpose.zWhen using CeoTronics products that are equipped with connection leads ensure that the latter donot get caught up in operational machinery or wheels !zType-tested muffs with a high degree of passive noise attenuation are used for CeoTronics headsetswith headset muffs. If not stated otherwise, it is our experience that the passive noise attenuation ofthe headset muffs is reduced by approx. 3 dB due to the electronics that are integrated into theheadset muffs. As a rule no empirical values are available for non-standard products.At very high noise levels that exceed the passive protective effect of the headset muffs werecommend that ear plugs be worn as an additional measure. If in doubt, ask your safety officer orcompany doctor. Full noise attenuation exists only if the muff padding is in perfect condition. Thisshould be replaced at the latest after every 6 months of use. zIn the case of headsets with headset muffs that protect against harmful ambient noise and that arenot equipped with additional electronics for level-limited ambient sound reception, take heed that theaudibility of warning signals, warning calls etc. is also impaired !zCeoTronics products that are not intrinsically safe (explosion-proof) and therefore have no specialexplosion-proof designation must never be operated in potentially explosive environments (e.g.when refuelling cars, aircraft etc.). Devices that are not explosion-proof can unintentionally trigger offexplosions in such areas !zConnect CeoTronics accessories to a device or disconnect them from a device only when the deviceis switched off. zIf you are a cardiac pacemaker carrier, before operating a transmitter/receiver ask the manufacturerof your cardiac pacemaker for information about any impairment that might be caused due to highfrequencies.zFor safety reasons reception volumes in excess of 85 dB(A) are possible with a whole series ofCeoTronics products. However, these can be regulated by the user. After switching on thecommunication system, set the reception volume to approx. 1/2 the available loudness volume andthen test the audible volume.Do not set the volume any higher than is necessary. A very high volume setting can lead todamaged hearing, particularly if it is continuous. For high volumes or noise levels wear additional earplugs. If in doubt, ask your safety officer or company doctor.zWhen on board an airplane always keep a transmitter/receiver switched off. Operation of thetransmitter/receiver could affect the safety of the airplane and it is therefore prohibited. Neveroperate electronic devices on board an airplane without the express approval of an authorizedmember of the cabin crew.zDo not leave CeoTronics products lying around loose in cars, e.g. on the parcel shelf. Stow theseproducts in a suitable, safe place in the car so that they do not present a danger to you or to otheroccupants of the car, if emergency braking is effected.
3zWhen driving a car, do not use the radio because it may distract you from the other traffic. Never usea CeoTronics product (headset, insert earphone, induction receiver etc.) that will impair your hearing.zCharge rechargeable batteries only with the appropriate suitable CeoTronics charger. Observe thevoltage and currency specifications, including those on the mains face (e.g. 230 V AC or 115 V AC).Never use the charger to recharge non-rechargeable batteries.zWhen handling rechargeable batteries comply with environmental protection regulations !Rechargeable batteries contain toxic chemicals (e.g. cadmium). Never attempt to open arechargeable battery and never throw a rechargeable battery into fire. Expended (defective)rechargeable batteries are subject to compulsory regulated waste disposal. Do not put them in thehousehold waste !zEnsure that a short-circuit (risk of fire or injury) is not created across rechargeable battery terminalsor charging sockets by a short-out (bent-open paper clip, bunch of keys etc.). In such an event thewarranty shall lapse. Transport any spare rechargeable batteries in an electrically non-conductingpackage in order to avoid short-circuiting the rechargeable batteries.zKeep CeoTronics products and rechargeable batteries out of the reach of children and any otherpersons who are not familiar with the handling and operation thereof.zPackaging materials, e.g. filling materials and plastic bags are not toys and have to be kept out ofthe reach of children. There is a risk of children ingesting them and choking !zSafe operation requires clean devices. Ensure that the devices (microphones, connectors etc.) areclean and in good condition at all times.zCeoTronics products may only be used for the specific application envisaged.zIf the device is to be put out of operation definitively, bring it to a local recycling plant for disposal orsend it to CeoTronics.Important NotePlease note that any changes or modifications not expressly approved by the partyresponsible for compliance will void the user’s authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following twoconditions: (1) This device may not cause harmful interference, and (2) this device mustaccept any interference received, including interference that may cause undesired operation. Declaration concerning RF Radiation Exposure:The CT-DECT.24/CT-GateCom II.24 system is considered to be a portable transceiver.A portable device is defined to be used so that the radiating structure of the device is within20 centimeters (7.9 in.) of the body of the user and no specific safety distance is needed.
4Fig. 1 System overview
52. Description2.1 GeneralThis duplex communication system (Fig. 1) is used for aircraft push-back. The tug driver, two wingwalkers and marshalling agent wear headsets in conjunction with Transmitter/Receiver Units »CT-GateCom II.24/Multi«. The four headset wearers outside the aircraft can communicate with oneanother. The tug driver is able to communicate with the flight deck via the Aircraft Interface that isconnected to the aircraft intercom on the outside of the aircraft. Detailed information see section 2.2.The range depends on the local circumstances. Protection against eavesdropping is ensured by thedigital design. Channel selection is effected automatically.2.2 Communication circuitsWing walkersThe two wing walkers can communicate with each other, with the marshalling agent, and with the tugdriver. The wing walkers are not able to speak to the flight deck. But they are able to hear thecommunication between the flight deck and the tug driver. Marshalling agentThe marshalling agent can communicate with the two wing walkers and with the tug driver. He is able tohear the communication between the flight deck and the tug driver. When the tug driver speaks to theflight deck the marshalling agent can also speak to the flight deck as long as the microphone switch atthe left headset muff of the tug driver is in position »PTT« or »HOT«.Tug driverThe tug driver can communicate with the two wing walkers, with the marshalling agent, and with theflight deck. When he communicates with the wing walkers and/or with the marshalling agent the flightdeck doesn‘t hear this communication. When the tug driver communicates with the flight deck the twowing walkers and the marshalling agent will hear this communication also. The tug driver is the only person who is able to control the communication with the flight deck.Flight deckThe flight deck can only communicate with the tug driver. The two wing walkers and the marshallingagent can hear this communication as well. When the tug driver speaks to the flight deck themarshalling agent can also speak to the flight deck as long as the microphone switch at the left headsetmuff of the tug driver is in position »PTT« or »HOT«.2.3 System overviewThe system (Fig. 1) consists of:yfour GroundCom Headsetsyfour Transmitter/Receiver Units CT-GateCom II.24/Multiyone Aircraft Interface CT-GateCom II.24+4yone charging station for up to four removable Li-Ion rechargeable battery packs 3.6 V/2300 mAhyone single-unit charger for the Li-Ion rechargeable battery 3.6 V/2300 mAh in the Battery Pack of theAircraft Interface CT-GateCom II.24+42.4 Communication Headsets2.4.1 GeneralThe wing walkers, the marshalling agent and the tug driver use GroundCom Headsets in conjunctionwith Transmitter/Receiver Units CT-GateCom II.24/Multi. The GroundCom Headsets protect againstharmful ambient noise and allow communication in noisy environments. The headset microphone is noise-compensating and is equipped with a flexible gooseneck andwindshield. The microphone can be switched on and off by means of a switch at the headset muff.
62.4.2 Headset, basic versionFig. 2 Headset, basic version Key to Fig. 2a Adjustable head bandb Ear cushionsc Left headset muffd Microphone and windshielde Flexible gooseneckf Option – External PTT button with belt clip forcommunication between the wing walkers, themarshalling agent, and the tug driverg Connecting cable and plug for theTransmitter/Receiver UnitCT-GateCom II.24/Multih Right headset muffi On/Off switch for microphoneThe 3-position microphone switch at the rightheadset muff allows communication betweenthe wing walkers, the marshalling agent, andthe tug driver but not with the flight deck.Information for the microphone switch seesection 2.4.62.4.3 Headset for tug driverFig. 3 Headset for tug driver Key to Fig. 3a Adjustable head bandb Ear cushionsc Left headset muffd On/Off switch for microphoneThe 3-position microphone switch at the leftheadset muff allows communication betweenthe tug driver and the flight deck. Informationfor the microphone switch see section 2.4.6e Microphone and windshieldf Flexible gooseneckg Option – External PTT button with belt clip forcommunication with the flight deckh Connecting cable and plug for theTransmitter/Receiver UnitCT-GateCom II.24/Multii Right headset muffj On/Off switch for microphoneThe 3-position microphone switch at the rightheadset muff allows communication betweenthe wing walkers, the marshalling agent, andthe tug driver but not with the flight deck.Information for the microphone switch seesection 2.4.6
72.4.4 Headset with level-limited ambient sound receptionFig. 4 Headset with level-limited ambientsound receptionGeneral – Headsets with level-limited ambient soundreception (Fig. 4) are used mainly where ambientsounds, warning signals etc. have to be heardalongside communication. The external sounds arereceived by a microphone (Fig. 4/b) on the front side ofthe left-hand headset muff and are audible inside thisheadset muff via the ambient sound speaker. If the external sounds exceed 85 dB(A), the soundlevel emitted to the ear by the ambient sound speakeris limited electronically to a maximum of 85 dB(A). The power for the ambient sound reception electronicsis supplied by the Transmitter/Receiver Unit CT-GateCom II.24/Multi.Switching On/Off and adjusting the volume forambient sound reception – The ambient soundreception is switched on and off and volume controlledby means of the additional combined On/Off switchand volume adjuster (Fig. 4/a) on the headset muff. 2.4.5 Audio signals usedTwo different audible tones are used for signaling the operating status via the headset connected to theTransmitter/Receiver Unit. The tone for the indication of positive responses (P-tone) has a higherfrequency than the tone for the indication of negative responses (N-tone). Signaling of the variousevents is effected by a varying number of consecutive P-tones or N-tones.Positive acknowledgement toneAll positive responses are indicated by a high P-tone.Negative acknowledgement tone and error toneAll negative responses and error status are indicated by a low N-tone.Examples battery warningIf the battery has an undervoltage a low 3-beep N-tone sequence »N-N-N« sounds approximately every10 seconds in the Headset.Examples range warningIf the range limit is reached, a high 3-beep P-tone sequence »P-P-P« sounds approx. every 5 secondsin the Headset.2.4.6 On/Off switch for the microphoneThe microphone of the headset can be switched on and off with the microphone switch »PTT.–OFF–HOT.« at the bottom of the headset muff(s). Three switch positions are possible. However,communication can only be performed after on-air subscription (sections 3...3.4) that is carried out ex-works, switching on, synchronization, adjustment of the speaker volume (sections 4...4.3) andconnection setup (sections 4.4...4.4.2) have all been effected.Middle position »OFF« (receive): The headset microphone is switched off. You can only receive.Front switch position »PTT« (transmit and receive): »PTT« position (PTT = push-to-talk).The headset microphone is switched on. You can speak into the microphone as long as you hold theswitch in this position and simultaneously a message is being received. After releasing the switch, theswitch returns to the middle position »OFF«.Rear »fixed« switch position »HOT« (transmit and receive): »Hot mic« position.The headset microphone is constantly switched on. You can speak into the microphone andsimultaneously receive a message.
82.4.7 Wearing the headset with an additional head strapIn the event of rapid body movements or extreme body postures or if you are using a protective helmetthe headset can be additionally secured on your head by means of the head strap (Fig. 5/a) provided. a. Pull the head strap as per Fig. 5 through the slit in the headset muffs and fasten it with the tworetainers (Fig. 5/b). b. Put on the headset, fold the head band (Fig. 5/c) to the rear and wear the head band as a neckband. Ensure that the head strap and neck band are tautly seated.Fig. 5
92.5 Transmitter/Receiver Unit CT-GateCom II.24/MultiFig. 6 Transmitter/Receiver UnitCT-GateCom II.24/MultiThe wing walkers, the marshalling agent and the tugdriver have Transmitter/Receiver UnitsCT-GateCom II.24/Multi which are used in conjunctionwith the headsets. They are worn on waist belt by meansof a fastening clip on the rear.The Transmitter/Receiver Unit is used for communicationover short distances. The max. range depends on thelocal circumstances. Protection against eavesdropping isensured by the digital design. Channel selection iseffected automatically by the unit.Power for the Transmitter/Receiver Unit is supplied by aremovable Li-Ion 3.6 V/2300 mAh rechargeable batterypack which resides in a battery compartment in the unit. Key to Fig. 6a Jack for connection of the headsetb On/off switch and volume control (rotary knob)c Bank of 5 push-buttons (red or black)Buttons 1 and 5 for on-air subscriptionButtons 2, 3 and 4 for connection setup andconnection releaseThe tug driver and the marshalling agent haveTransmitter/Receiver Units with red colored push-button bank and the two wing walkers with blackcolored push-button bank.d Fastening clip on the rear to fasten the unit on waistbelte Removable cover for the battery compartmentf Multi-purpose jack, e.g. for programming or forconnection of accessories 2.6 Transmitter/Receiver Headset CT-GateCom II.24Fig. 7 Transmitter/Receiver Headset CT-GateCom II.24 Instead of a Transmitter/Receiver UnitCT-GateCom II.24/Multi (section 2.5) inconjunction with a communication headset(sections 2.4...2.4.7), the Transmitter/Re-ceiver Headset CT-GateCom II.24 (Fig. 7)can be used.Key to Fig. 7a Adjustable head bandb Left-hand headset muffc On/Off switch and volume controld Button for subscription, connectionsetup and releasee Ear cushionsf Microphone and windshieldg Flexible gooseneckh On/Off switch for microphonei Right-hand headset muff
10Fig. 8 Transmitter/Receiver HeadsetCT-GateCom II.24, microphoneon/off switch (item »a«)On/Off switch for the microphoneThe microphone can be switched on and off with the switch»Mic.–OFF–Mic.« (Fig. 8/a) at the bottom of the right-handheadset muff. Three switch positions are possible.Middle position »OFF« (receive): The headsetmicrophone is switched off. You can only receive.Front switch position »Mic.« (transmit and receive):The headset microphone is switched on. You can speakinto the microphone as long as you hold the switch in thisposition and at the same time you can hear a receivedmessage. After releasing the switch the switch returns tothe middle position »OFF«.Rear »fixed« switch position »Mic.« (transmit andreceive): The headset microphone is constantly switchedon. You can speak into the microphone and at the sametime you can receive a message.Fig. 9 Transmitter/Receiver Headset CT-GateCom II.24,battery charging socketPower supplyA 3.6 V/600 mAh NiCd rechargeablebattery or an optional 3.6 V/2300 mAhLi-Ion rechargeable battery in the rightheadset muff provides the power supply forthe headset. The battery charging socket (see exampleFig. 9/a) is located on the rear of the right-hand headset muff.2.7 Aircraft Interface CT-GateCom II.24+4The Aircraft Interface (Fig. 10) consists of Interface (Fig. 10/j) and Battery Pack (Fig. 10/c) which residein a carrying bag (Fig. 10/a). The carrying bag is closed by means of a zip. The unit is connected to theaircraft intercom via connecting cable and male jack-plug (Fig. 10/k). The Battery Pack contains a Li-Ion rechargeable battery 3.6 V/2300 mAh. It supplies the power for theInterface. The Battery Pack can be charged via the charging socket (Fig. 10/d).The weatherproof carrying bag is used to stow the Interface and the Battery Pack and can be attachedto the aircraft, e.g. the access cover for the aircraft intercom, by means of the carrying strap or a hook.Î NOTEzKeep the carrying bag closed when in use.
11Fig. 10 CT-GateCom II.24+4/Aircraft InterfaceKey to Fig. 10a Carrying bag for the Interface and the BatteryPackb Stowage place for the coiled connecting cable(item »k«)c Battery Pack for the Interface. Equipped with aLi-Ion rechargeable battery 3.6 V/2300 mAh inthe unitd Charging socket »CHARGE« for the Li-Ionrechargeable battery 3.6 V/2300 mAh in theBattery Packe Green push-button »ON« to switch on the unitf Control lamp, lights up if the unit is switched on,flashes if the Battery Pack voltage is too lowg Red push-button »OFF« to switch off the unith Black subscription button »W« for theTransmitter/Receiver Units group 2 for wingwalkers with black colored push-button banki Red subscription button »R« for theTransmitter/Receiver Units group 1 for tugdriver and marshalling agent with red coloredpush-button bankj Interfacek Coiled connecting cable with male jack-plug forconnection to the aircraft intercom2.8 Battery chargersTwo battery chargers are shipped with the system (see section 2.3). For recharging the batteries seesection 6 and the special CeoTronics Operating Instructions for the chargers.
123. On-air subscription3.1 GeneralÎ NOTESzThe on-air subscription is a procedure which has to be performed once only ex-works.It must be performed again only in the case of an error or if another Transmitter/Receiver UnitCT-GateCom II.24 will be used in conjunction with the Aircraft Interface.zIn the following the on-air subscription is described for the Aircraft Interface in conjunctionwith Transmitter/Receiver Units CT-GateCom II.24/Multi. The on-air subscription for theAircraft Interface in conjunction with Transmitter/Receiver Headsets CT-GateCom II.24 iscarried out analogous and in the sequence as described in sections 3.2...3.4.The subscription procedure is performed on the Aircraft Interface and the Transmitter/Receiver Unitsmanually by means of a procedure carried out by the operator.The Aircraft Interface is equipped with two radio modules. The four Transmitter/Receiver Units areequipped with one radio module each. Each unit (radio module) has its own identification number. A max. of four Transmitter/Receiver Units (in two groups) is allocated to the two radio modules in theAircraft Interface. The Aircraft Interface is the base unit and the Transmitter/Receiver Units aresubscribed to the Aircraft Interface. First of all an allocation must always take place between the AircraftInterface and the Transmitter/Receiver Units. Ex-works the four Transmitter/Receiver Units are divided in two groups as follows(Fig. 10/i and h):yGroup 1 – Transmitter/Receiver Units with red colored push-button bank for tug driver andmarshalling agent. The subscription is carried out by means of the red subscription button»T« (Fig. 10/i) for group 1 at the Aircraft InterfaceyGroup 2 – Transmitter/Receiver Units with black colored push-button bank for wing walkers.The subscription is carried out by means of the black subscription button »W« (Fig. 10/h) forgroup 2 at the Aircraft InterfaceOther allocations in pairs can be carried out later by the customer. Please heed that the subscription ofthe Transmitter/Receiver Units in conjunction with the Aircraft Interface is always carried out in pairs. If a third Transmitter/Receiver Unit is subscribed to one of the two groups of the Aircraft Interface, theTransmitter/Receiver Unit that was subscribed first is deleted from the data base of the AircraftInterface.Once the subscription procedure has been successfully concluded, the identity of the communicationpartners is stored in the data base of the Aircraft Interface and of the Transmitter/Receiver Units. ATransmitter/Receiver Unit stores one Aircraft Interface, the Aircraft Interface stores in pairs up to four(2 x 2) Transmitter/Receiver Units.If the Aircraft Interface or a Transmitter/Receiver Unit is set to subscription mode and this is terminatedor not completed after 2 minutes without the subscription procedure having been successfullyconcluded a »time out« occurs. After a »time out« the subscription procedure must be restarted.
133.2 On-air subscription of the first Transmitter/Receiver Unit of group 1Î NOTEzThe Transmitter/Receiver Units are subscribed in pairs (group 1 and 2 see section 1), but oneafter the other, to the Aircraft Interface. First the two Transmitter/Receiver Units of group 1are subscribed one after the other to the Aircraft Interface and then the twoTransmitter/Receiver Units of group 2 are subscribed one after the other to the AircraftInterface (see section 3.1).zTwo Transmitter/Receiver Units can never be simultaneously subscribed to the AircraftInterface. The Transmitter/Receiver Units must always be subscribed one after the other tocomplete a group. zFor subscription the Aircraft Interface must always be switched on before theTransmitter/Receiver Unit.a. Connect the first headset of group 1 to the first Transmitter/Receiver Unit of group 1 (identifiable bythe red colored push-button bank) via the connecting cable and plug of the headset. Open thecarrying bag for the Aircraft Interface by means of the zip. b. At the Aircraft Interface press the red subscription push-button »T« (Fig. 10/i) for group 1, keep thered push-button »T« pressed and switch on the Aircraft Interface by means of the green push-buttonON (Fig. 10/e). The control lamp (Fig. 10/f) illuminates. After switching on keep the red subscriptionpush-button »T« pressed for at least 10 seconds. Than immediately carry out step »c«.c. At the first Transmitter/Receiver Unit group 1 with red colored push-button bank press thesubscription button 1 simultaneous with subscription button 5 located at the begin and end of thepush-button bank (Fig. 6/c). Keep the two push-buttons pressed and switch on theTransmitter/Receiver Unit by means of the On/Off switch and volume control (rotary knob Fig. 6/b).After switching on keep the two push-buttons pressed for at least 10 seconds. The subscription procedure on the Transmitter/Receiver Unit has to be started within 2minutes after the subscription procedure on the Aircraft Interface was started, otherwise a»Time Out« may occur (see section 3.1).After approx. 30 seconds a high double-beep tone can be heard in the headset. This indicates thatthe on-air subscription has been successfully completed. A second high double-beep tone finallyreports that the Transmitter/Receiver Unit has synchronized itself with the Aircraft Interface. 3.3 On-air subscription of the second Transmitter/Receiver Unit of group 1a. Switch off the Aircraft Interface with the red push-button OFF (Fig. 10/g). The control lamp (Fig. 10/f)extinguishes. b. Connect the second headset of group 1 to the second Transmitter/Receiver Unit of group 1(identifiable by the red colored push-button bank) by means of the connecting cable and plug of theheadset. Ensure that the Transmitter/Receiver Unit is switched off. The on/off switch and volumecontrol (rotary knob Fig. 6/b) must be set to OFF .c. Repeat the subscription procedure for the Aircraft Interface and the second Transmitter/ReceiverUnit of group 1 as described in section 3.2, steps »b« and »c«, for the Aircraft Interface and for thefirst Transmitter/Receiver Unit of group 1.3.4 On-air subscription of the first and second Transmitter/Receiver Unit of group 2The subscription procedure for the Aircraft Interface and the two Transmitter/receiver Units of group 2(identifiable by the black colored push-button bank) is carried out as described in sections 3.2 and 3.3for the two Transmitter/Receiver Units of group 1. At the Aircraft Interface the black subscription push-button »W« (Fig. 10/h) for group 2 is used instead of the red push-button »T« for group 1 (Fig. 10/i).
144. Commissioning and operationÎ NOTEIn the following the commissioning and operation of the system is described for the AircraftInterface and the Transmitter/Receiver Units CT-GateCom II.24/Multi which are used inconjunction with communication headsets.4.1 Aircaft InterfaceThe rechargeable battery in the Battery Pack must be fully charged.a. Open the carrying bag for the Aircraft Interface by means of the zip.b. Take the connecting cable (Fig. 11/a) with male jack-plug (Fig. 11/c) out of the cover of the carryingbag. Lead the connecting cable with male jack-plug through one of the loops (Fig. 11/b) on thecarrying bag. Close the carrying bag by means of the zip. This prevents any fluids running alongthe lead into the carrying bag.Fig. 11c. At the aircraft locate the aircraft intercom connector. Hang the carrying bag e.g. over the accesscover or to a suitable place near the aircraft intercom connector by means of the carrying strap or bymeans of a hook.Connect the Aircraft Interface via the connection cable and the male jack-plug to the female jack-plug for the aircraft intercom.Î NOTEzKeep the carrying bag for the Aircraft Interface closed at all times while in use!4.2 Headsets and Transmitter/Receiver Unitsa. Connect the headset via the connecting cable and plug to its Transmitter/Receiver Unit. Fasten theTransmitter/Receiver Unit by means of the clip on the rear to a suitable place on your clothing.b. Put on the headset. Take care for a perfect comfortable fit. Only when the ear cushions are properlylocated around the ears the best noise attenuation of the ear muffs is provided. Adjust the height ofeach ear muff equally on both sides while holding the head band down until the ear cushions have atight and comfortable fit. The head band should sit straight and comfortable on the top of the head. For hygiene reasons we recommend the use of the washable sweat absorbers on the ear muffs.These are pulled over the ear cushions and are for the purpose of wear comfort and hygiene.
15CAUTIONDo not »twist« the flexible gooseneck. Do not carry the headset by the gooseneck.Use the microphone only with a windshield.c. Adjust the flexible gooseneck by bending so that the microphone is located at a distance of approx.5 mm (0.2 in.) in front your lips. Optimum voice transmission with the best possible noisecompensation is then provided.4.3 Switching on, adjusting the speaker volumeÎ NOTESzThe Aircraft Interface must always be switched on before the Transmitter/Receiver Units.zOn the Transmitter/Receiver Units the push-buttons 2,3,4 for connection setup andconnection release, placed in the middle of the push-button bank (Fig. 6/c), must not bepressed until the Transmitter/Receiver Units are synchronized with the Aircraft Interface.zAlways leave the Aircraft Interface and the Transmitter/Receiver Units switched on as long asyou work with the communication system so that immediate availability of the system isprovided.a. First switch on the Aircraft Interface by means of the green push-button ON (Fig. 10/e). The controllamp (Fig. 10/f) illuminates. If the Battery Pack voltage is too low the control lamp flashes and theBattery Pack must be charged.b. Switch on the Transmitter/Receiver Unit by means of the On/Off switch and volume control (rotaryknob Fig. 6/b).After Switching on the connection synchronization between Transmitter/Receiver Unit and AircraftInterface is effected automatically.Synchronization: A click is audible in the headset connected to the Transmitter/Receiver Unitapproximately 10 seconds after switching on. The synchronization procedure then begins, i.e. thepreviously switched on Aircraft Interface seeks its Transmitter/Receiver Unit. This synchronizationprocedure can last approx. 30 seconds. Upon completion of synchronization – i.e. the AircraftInterface has found its Transmitter/Receiver Unit – a high double-beep P-tone sounds in theheadset, indicating that the Transmitter/Receiver Unit and the Aircraft Interface are ready foroperation. c. At the Transmitter/Receiver Unit set the On/Off switch and volume control (rotary knob Fig. 6/b) tomid-position. Later, on voice reception, adjust the desired speaker volume for your headset. Do notset the volume any higher than necessary. d. Connection setup and release by the Transmitter/Receiver Units see sections 4.4...4.4.2.4.4 Connection setup and release by the Transmitter/Receiver Unit(s)4.4.1 PrerequisitesyAircraft Interface and Transmitter/Receiver Unit(s) subscribed (sections 3...3.4)yAircraft Interface and Transmitter/Receiver Unit(s) switched on and synchronized (section 4.3)4.4.2 Connection setup and releaseAutomatic connection setup after switching onAfter the Aircraft Interface and the Transmitter/Receiver Unit(s) are switched on the connectionsynchronization between the the Aircraft Interface and the Transmitter/Receiver Unit(s) is(are) effectedautomatically. Subsequently communication is possible.Connection releaseBriefly press one of the push-buttons for connection setup and release in the middle of the push-buttonbank (Fig. 6/c) at the Transmitter/Receiver Unit. The Transmitter/Receiver Unit is disconnected from theAircraft Interface. This procedure is acknowledged by a high beep P-tone in the headset connected tothe Transmitter/Receiver Unit.
16ReconnectionBriefly press one of the push-buttons for connection setup and release in the middle of the push-buttonbank (Fig. 6/c) at the Transmitter/Receiver Unit. In the headset connected to the Transmitter/ReceiverUnit a high beep P-tone sounds when the connection is set up between the Transmitter/Receiver Unitand the Aircraft Interface.4.5 End of operation4.5.1 Aircraft Interfacea. At the end of the workshift, switch off the Aircraft Interface before any of the Transmitter/ReceiverUnits.b. Recharge the rechargeable battery in the Battery Pack.4.5.2 Transmitter/Receiver Units CT-GateCom II.24/MultiSwitch off the Transmitter/Receiver Unit. Recharge the rechargeable battery.4.5.3 Transmitter/Receiver Headsets CT-GateCom II.24Switch off the headset. Recharge the rechargeable battery.5. Safekeeping – storageStore the cleaned devices in a clean, dry place at normal room temperature and in normal relative airhumidity.6. Recharging the batteriesThe rechargeable Li-Ion battery 3.6 V/2300 mAh in the Transmitter/Receiver Units and in the BatteryPack of the Aircraft Interface should only be charged with the chargers supplied with the system (seesection 2.3). Otherwise the batteries may be damaged. The chargers are neither water-tight nor dust-tight. Protect them against water, rain and dirt. They may only be used in rooms with normal relative airhumidity and temperature. Do not cover up the ventilation slots of the chargers.CAUTIONNever use battery chargers to charge non-rechargeable batteries. Never open rechargeablebatteries or throw them into fire. Used (defective) rechargeable batteries are subject to specialwaste disposal. Do not put them in the household refuse. Observe your local regulations !CAUTIONNever charge a rechargeable battery in areas with an explosion risk – an explosion may result.Charge and change rechargeable batteries only within a building or similar environment thatdoes not contain dangerous concentrations of volatile vapors. Notice the special CeoTronics Operating Instructions for the chargers.To charge the battery pack in the Transmitter/Receiver Unit, switch off the Transmitter/Receiver Unit,remove the cover from the battery compartment and take out the battery pack as described on thebattery pack sticker. Charge the battery pack with the charging station for Li-Ion rechargeable batteries.
177. Maintenance7.1 Visual inspectionRegularly examine the devices, the headset muffs, the ear cushions, the cables and plug connectors forsigns of fractures, cracks and wear. Send defective devices to CeoTronics for repair. Replace damagedor worn ear cushions in accordance with section 7.4, and, even if not damaged, every 6 months of useat the latest.7.2 CleaningCAUTIONWhen cleaning ensure that no moisture penetrates inside the devices. Do not use any solvents(e.g. benzine, alcohol, etc.) for cleaning purposes !Remove any loose dust with a soft brush. Clean, if necessary, the outside of the devices with a suitableclean cloth that has been slightly moistened with clear water, and rub the parts dry afterwards. If heavilysoiled, some dishwashing liquid can be used in addition.7.3 Replacing the windshield on theheadset microphonePull the windshield (Fig. 12/a) off the microphoneand replace it.7.4 Replacing the ear cushions of theheadset muffsPull the ear cushion (Fig. 12/b) off the headsetmuff and replace it. Ensure that the new earcushion fully engages.Fig. 128. Accessories and consumable partsDesignation and description Art. No.Carrying case for headset, color grey 40 35 030Ear cushion, 2 pcs. 50 00 501Windshield for microphone, 10 pcs. 50 02 201Comfort set consisting of 50 pcs. (25 pair-pack) sweat absorbing cotton pads 40 10 025
Germany andInternational SalesCeoTronics AGAdam-Opel-Str. 663322 Rödermark (Germany)Tel. +49-(0) 6074/87 51-0Fax +49-(0) 6074/87 51-676E-Mail verkauf@ceotronics.comUSA/Canada/MexicoCeoTronics, Inc.Battlefield Lakes – Tech Center II533 Byron Street, Suite EChesapeake, VA 23320-6603Tel. (757) 549-6220Fax (757) 549-6230E-Mail sales@ceotronicsusa.comGreat Britain and IrelandCeoTronics Ltd.1 Highview y High StreetBORDON, HampshireGU35 0AXTel. 01420-47 93 53Fax 01420-47 93 72E-Mail ceotronics@winweb.comFranceCeoTronics SarlZ.A. des Arpents16, Rue du Pré aux Aulnes77340 PONTAULT-COMBAULTTéléphone 01 60 18 33 00Télécopie 01 60 28 60 60E-Mail ceotronics@worldonline.frSpainCeoTronics S.L.C/Antonio Vicent 23-1°28019 MadridTel. 91-460 82 50/51Fax 91-460 31 93E-Mailceotronics.gil@mad.canalpyme.comSwitzerlandCeoTronics AGGrundstr. 166343 RotkreuzTel. 041/790 58 38Fax 041/790 58 39E-Mail ceotronics@tic.chEIGENE/CT-GATECOMII/ZUL-USA.DOC/01/0901 y DOK 0357 Subject to changeCopyright © 9/2001 CeoTronics AG, 63322 Rödermark, Germany, Internet www.ceotronics.com

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