The remote alarm device includes two parts: an infrared sensor wireless transmitter and a receiving sound and light signal machine, as shown in (a).
The infrared sensor wireless transmitter is composed of an infrared sensing module, a timing control circuit, a voice generator and an FM transmitting circuit, as shown in Figure (b).
The infrared sensor head uses the HN911L in the pyroelectric infrared sensing series module. The L at the end of the model indicates the micro power consumption type. The quiescent current is only 20μA, and the power supply voltage is 6V (other models are 5V).
PC Cable:MINI DIN,D-SUB,SCSI.The display connecting line includes the data cable connecting the host computer and the display screen, and the power cable connecting the power supply.
The common data cable types are: HDMI cable, VGA cable and DVI cable. There is also a DP cable for notebook!
This product is suitable for computer and automatic connection cable with rated voltage of 500V and below. K type B low density polyethylene (LDPE) with oxidation resistance is used for insulation of cable ground wire core. Polyethylene has high insulation resistance, good voltage resistance, small dielectric coefficient and small influence of dielectric loss temperature and variable frequency. It can not only meet the requirements of transmission performance, but also ensure the service life of the cable. One
In order to reduce the mutual crosstalk and external interference between loops, the cable adopts shielding structure. According to different occasions, the shielding requirements of cables are as follows: the combined shielding of twisted pair, the total shielding of cable composed of twisted pair, and the total shielding after the combined shielding of twisted pair.
Shielding materials include round copper wire, copper strip and aluminum / plastic composite belt. Shielding pair and shielding pair have good insulation performance. If there is potential difference between shielding pair and shielding pair, the transmission quality of signal will not be affected.
PC Cable
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