CT-DECT Headset for Wireless Duplex Communication Operating Instructions
Contents 1. Important safety instructions.....................................................................................................................3 2. Description .................................................................................................................................................5 2.1 General...................................................................................................................................................5 2.
Important Note Please note that any changes or modifications not expressly approved by the party responsible 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 two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that cause undesired operation.
l l l l l l l l l l l l l l l l At very high noise levels that exceed the passive protective effect of the headset muffs we recommend that ear plugs be worn as an additional measure. If in doubt, ask your safety officer or company doctor. Full noise attenuation exists only if the muff padding is in perfect condition. This should be replaced at the latest after every 6 months of use.
2. Description 2.1 General The headset is a transmitter/receiver for wireless duplex voice and data communication between a max. of three communication parties over short distances. The range depends on the local circumstances. Up to two standard headsets can log into a base headset. Channel selection is effected automatically by the unit. The headset protects against harmful ambient noise and renders possible communication in noisy environments.
2.2 Power supply and operating time A 3.6 V/600 mAh rechargeable battery in the right headset muff provides the power supply for the headset. With a fully charged battery the operating time for continuous operation is approx. 6 hours. 2.3 Audio signals used Two different tones are used for signalling the operating statuses. The tone for the indication of positive responses (P-tone) has a higher frequency than the tone for the indication of negative responses (Ntone).
If a third standard headset is subscribed into the base headset, the standard headset that was subscribed in next to last is deleted from the data base of the base headset. è NOTE The base headset and the standard headset can also be used in conjunction with other CeoTronics DECT units. The on-air subscription of a headset to one of these DECT units is carried out analogous and in the sequence as described in sections 3.2....3.2.2.
b. Adjust the flexible swanneck 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 noise compensation is then provided. 4.2 Wearing the headset with an additional head strap In the event of fast body movements or extreme body postures or if you are using a protection helmet the headset can be fixed to your head additionally by means of the head strap provided (Fig. 2/a). a. Pull the headstrap as per Fig.
4.4 Connection setup and release è NOTE The base headset and the standard headset can also be used in conjunction with other CeoTronics DECT units. The connection setup and release for the units is carried out basically as described in sections 4.4.1, 4.4.2. Going to do so, first ascertain which of the DECT units is the base unit (lettering »CT-DECT Base«) and which a standard unit (lettering »CT-DECT Standard«). For the connection setup and release at a DECT unit always the push-button » ) « is used.
4.4.2 Connection setup and release by the base headset (1) Prerequisites Ÿ Headsets subscribed (sections 3...3.2.2) Ÿ Headsets switched on and synchronized (section 4.3) (2) Two-party conference Connection setup: Briefly press the push-button » ) « on the left-hand side of the headset muff of your base headset. When the connection is set up a high beep tone sounds in the calling base headset and in the called standard headset.
Fig. 3 Headset with level-limited ambient sound reception In the case of external sound levels of over 85 dB(A) the sound level emitted by the ASR speakers in the headset muffs to the ear is limited to a maximum of 85 dB(A). The overall noise attenuation of the headset is, however, limited to passive noise attenuation of the headset muff. 5.2 Operator control Described below are only the operating control differences relating to external sound reception.
Communication circuit 1 Communication between the user of the base headset and a max. of two other users of standard headsets within the headset frequency range. The standard headsets must have logged into the base headset. Communication circuit 2 Communication in connection with an additional radio set on the radio set channel. The radio set is connected to the headset via the radio set adapter.
9. Recharging the batteries CAUTION Never use battery chargers to charge non-rechargeable batteries. Never open rechargeable batteries or throw them into fire. Used (defective) rechargeable batteries are subject to special waste disposal. Do not put them in the household refuse ! Use a CeoTronics charger (see section 11) to charge the 3.6 V/600 mAh battery in the headset. Using other chargers can cause rechargeable batteries to become damaged.
10.3 Replacing the windshield on the microphone Fig. 6 Pull the windshield (Fig. 6/a) off the microphone and replace it. 10.4 Replacing the ear cushions Pull the ear cushion (Fig. 6/b) off the headset muff and replace it. Ensure that the new ear cushion fully engages. 11. Accessories and consumable parts Designation and description Art. No. Carrying case for transceiver headset, colour grey 40 35 030 Single-unit quick charger, charging time approx. 30 minutes For a mains voltage of 100...
