User manual SENNHEISER SZI 1019 A

[. . . ] This solution has the advantage that time and material costs during installation ot the radiator can be kept very low. the radiator is switched automatically by the carrier signal generated by the control transmitter. This signal drives 143 inlrared diodes in the SZI1 019 A which radiate the signal in the torm 01 modulated inlrared light. [. . . ] In order to permit optimum radiation of the infrared light, the radiator should be installed, wherever possible, such that there are no obstacles between it and the infrared receivers. this can be achieved by mounting the radiator as high as possible , and tilting it slightly downwards. In order to ensure that the signal is as uniform as possible within the room, the radiators should be spread around the room. Please note that minimum distance between the radiator and an infrared receiver should be 2 m, as there is otherwise a danger of over driving the receiver input stage, which can result in distortion of the signal. When it leaves the factory, the radiator is set for operation from 220 Vl50 Hz supplies. For operation from 115-Vsupplies, 3 wire straps must be repositioned within the radiator. Of the radiator to the power outlet, it is only necessary to establish the connection The following coaxial cables are available for this purpose: GZL 1019 A 1 (BNC/BNC, length: 1 m), GZL 1019 A 5 (BNC/BNC, length: 5 m), and GZL 1019 A 10 (BNC/BNC, length: 10 m). The cables can also be connected together with the aid of the double BNC socket GZV 1019 A. for permanent installation , commercially available 50 n coaxial cables such as RG 58 can be used. If more than one SZI1019 A is to be installed, radiators are simply connected in series. To do this, connect RF output socket @ of the first radiator to the RF input socket of the second radiator. a maximum of 100 radiators may be connected in series. The maximum cable length between the control transmitter and last radiator should not exceed 1, 500 m. Note: In the case of cable lengths greater than 300 m, the last radiator should be terminated terminal resistance of 50 n (type SZA 1060) in order to prevent standing waves. After the last radiator has been connected, you may activate the system by switching on the control transmitter. The radiators are automatically switched on by the carrier signal generated by the control transmitter and are switched off again when the signal disappears. [. . . ] If the SZI1019 Ais used in multichannel systems, the total radiated power IS divided uniformly between all channels used, i. If, for example, 4 channels are transmitted, the radiated power of an SZI1019 AIS reduced to one quarter for each channel, and the radiator then only covers an area of 75 m2. In order to compensate for this loss, the number of radiators must be increased accordingly. [. . . ]