Coax 1) Dual Cable System Dual cable system has two identical cables laid side by side. To transmit data, the computer 1 via a cable to transfer data to the root of the number of cable equipment, namely top device (head-end), then the top is down 2 signal transmitted through the cable along the cable number. All the computers are sent through coaxial cable 1, 2 reception via cable. Another option 2) single-cable system is on each cable to the internal and external communications assigned different frequency bands. Communication and signal for low band to the top of the top computer receives Weinan high frequency coaxial moved to the computer broadcasts. In the sub-segment (subsplit) system, 5MHz ~ 30MHz band is used within the communications, 40MHz ~ 300MHz frequency band used for outgoing traffic. In the carve (midsplit) system, within the band is 5MHz ~ 116MHz, while the outgoing frequency band 168MHz ~ 300MHz. This choice is due to historical reasons. 3) There are many broadband system usage. In between a pair of computers that can be assigned a dedicated permanent channel; other computer can control channel Xi'an coaxial cable, apply for the establishment of a temporary channel, and then switch to the application to the channel frequency; also allows all the computers share one or a Group channel. Technically, broadband cable than the base band (ie a single channel) cable is poor on the transmission of digital data, but it has the advantage has been widely installed. Coaxial cable physical parameters coaxial center conductor is a coaxial cable, an insulating layer, the shield mesh fabric composed of insulating material and an outer layer. Coaxial cable can have enough flexibility to support 254mm (10 inch) bend radius. Center conductor diameter of: 2.17mm ± 0.013mm solid core copper wire. Coaxial cable insulation materials must meet the electrical parameters. Shielding layer is a metal strip or sheet by the transfer impedance and ECM meet the specifications of the composition, the inner diameter of the shielding layer is 6.15mm, outer diameter of 8.28mm. External insulation material generally used in polyvinyl chloride (such as PVC) or similar material. Baoji coaxial cable, coaxial cable, the Middle East cable, power cable provided by the Shaanxi Jin Bao Li cable Limited. Shaanxi Baoli Cable Co., Ltd. (www.jinlidl.com) (www.jinlidl.cn) in the power cable that area devoted boundless enthusiasm and passion, Middle East cable, gold power cable has been customer-centric, to create value for customers The concept of quality, service to win market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcome inquiries, contact: Baijing Li.