Beijing E&W Technology Co.,Ltd was established in 1999 and is registered in ZHONG GUAN CUN Haidian DISTRICT, in Beijing China , and Certified by Hi-tech Enterprise in Beijing China. As the designer and manufacture of Fiber Optical communication products, Our products---EW series Transmitters and Media Converters have been used in ITS, Surveillance Security, Communications, China Petrol, China Power, Coal industry, Prison Administration and other fields.
Services E&W offers Base Model and Specific Model for complicated applications. Customized Design/Special Integration of video/audio/data, our engineer provides unique technology for Fiber Optic Applications. Superior customer support: Expert sales team and Engineers are always dedicated to service our customers, and provide the products with creative and innovative solutions.
Certifications ISO 9001:2000 UKAS China National Business Credit System
Technology Design of Frame Mount 1 Function Module ¨CALL Independent Mount Video Module Data Module Audio Module Ethernet Module Voice Module for Telephone (VMT) Voice Module for Intercom (VMI) 2 Particular Characters of Function Module Video Module---- Standard 8 Bit Video Digital Encoding (Extra for 10,12 Bit) 8 MHz Video Bandwidth NTSC, PAL, SECAM Compatible Surface Mount Technology (SMT) Lightning Protect design for Video Connector Data Module---for RS485/RS422/RS232 Meets EIA RS-485 ,Manchester or Bi-Phase and ISO/IEC 8482:1993(E) Standards; Low Disabled Supply Current 300 mA Max Meets all RS-232D and ITU v.28 Specifications Surface Mount Technology (SMT) Design for protected data circuits, which are sensitive to electromagnetic interference, avoid destruction result from over-voltage and static discharge Protection against high-energy noise transients. Withstand over voltage transients of 400 W peak(typical). Outputs sufficient to transmit data up to 250 k bits/s. Audio Module¡ª Complete Stereo DAC System I/O Impedance: 600 Ohms (Bal. / Un Bal.) Frequency Response: 10 Hz to 100 KHz SNR: >90dB (Weighted)@ 1 KHz In/Out Level: 3.5v Total Harmonic Distort: <0.01% @ 1KHz Resolution: 24 Bit Ethernet Module-- 10/100 Base-T Ethernet Auto-negotiation Full Duplex or Half-duplex Supported IEEE 802.3 Compliant User Selectable MDI/MDI-X Voice Module for Telephone (VMT) Voice Module for Intercom (VMI) |