远程无线PTZ控制系统

Product Model: SG-F408Description :SG-F408 is a 485 command controller, it can control 256 pieces of PTZ or Dome cameras. In other words, it needs only one SG-F408 to control all of the cameras (256 pieces at most) in a surveillance system. The effective transmission distance can up to 10km or more. This kind of products have been widely used in many applications, such as Police Force, Railway Security, Port Monitoring, Military, Traffic management etc. Application: Generally, there are three important points must be emphasized:1 The communication interfaces are the same standard RS485 / RS232 interface;2 The same baud rate at 2400bps;3 Terminal access method and the commonly used method of cable access must be in the same parity bit.Feature: Transfer rate: 2400bps, compatible voice or data signal transmission; Frequency: 230MHz; Can be set 256 Spots, the channel spacing is 25KHZ (standard); Integration of transceiver, both digital and analog signals can be send and switch quickly;Either co-frequency or unco-frequency in air transmission;Double loop and VCO structure, high stability; Use 30W imported power amplifier module; Use standard TTL, RS232 (or 485) level, convenient to connect to the control keyboard or personal computer directly; SMT design, stainless steel outshell, miniature size and easy to install, can stick heat sinks; Testing methods is in accordance with Mobile Communications “90” standardComprehensive Index Working frequency: 230MHz Frequency stability: ± 2.5ppm Channel spacing: 25KHz Antenna Impedance: 50Ω Ambient temperature: -30 +60 Frequency settings: data-chosen-switches or be written on the computer Data transfer rate: 2400bpsTransmitter Indicator Modulation: FSK / MSK Power: 30W Modulation Distortion: ≤ 3% Modulation Sensitivity: 100mV (3KHz offset) Adjacent channel power ratio: ≥ 65dB Spurious frequency components: ≤-65DbReceiving Indicator Usable sensitivity: ≤-120dBm (12dB SINAD) Residual level output: ≤-45dB Receiver Bandwidth Modulation: ≥ 5KHz Adjacent channel selectivity: ≥ 65dB Intermodulation Immunity: ≥ 60dB Spurious Response Immunity: ≥ 65dB Demodulated output: ≥ 0.2V audio voltage Power supply DC voltage: 12 14V Await current: ≤ 50 mA Launch the work of current: ≤ 6 APrompt: Please make sure that the current is switched off before you install the antennas. And there is more than 10 meters between the two to avoid signals jam because of too strong signals.