Rg8 Communication Coaxial Cable Feeder Assembly Â
Company profile
Shanghai Xiaowei Equipment Co., LTD (Xiaowei) was established in 2011, Shanghai, which is a company covering cable and accessories manufacturing, engineering service and trading.
 As a National wide wire & cable supplier Xiaowei continually provide different quality products in the telecom communication fields, the main product is 7/8 feeder cable, 1/2 feeder cable, feeder claim, feeder tools, all kind of the male, female, DIN, connector feeder connector, feeder grouding kit, grounding bar, low loss 7/8 jumper cable and 1/2 jumper cable, indoor optic jumper cable and outdoor fiber cable, splitter and coupler, Dual and trible band antanna, GPS antenna and GPS cable all the accessories in the telecom field.Xiaowei also supply VHF vabor phone, WLAN system.
Xiaowei have advance manufacturing product line, standard factory, we have long co-operation with the Chinese main telecom operators such as China Mobile, China Unicom, China Telecom. And the electric power operator such as National Electric network company, Southern Electric power company. Xiaowei provides total solution for telecommunication, power grid, railway, engineering, green energy, automobile industries, etc.
Xiaowei particularly focused on the QoS and creating value for its clients and stakeholders, continuously invest in R&D, marketing & service networks, meeting and exceeding the precise needs of our customers national wide. With the develop of the business, Xiaowei extend the service to the international trading.
RG-8U Cable Assemblies / Assembly
Applicable for connecting feeder cables with 8TS equipment and antenna, unnecessary of additional waterproof measures, such as waterproof gel or tape, meets waterproof standard IP68.
Standard lengths: 0.5m, 1m, 1.5m, 2m, 3m, customer special requiremnts on jumper length could be satisfied.
Characteristics & Applications
| Electrical Spec. | |
| Vswr | ≤ 1.15 (DC-3GHz) |
| Dielectric withstanding vlotage | ≥1500V |
| Dielectric resistance | ≥2000MΩ(500V DC) |
| Insert loss | It depends on leghth of cable |
| Â Operating temperature | - 40oC ~ + 85oC |
| Storage temperature | - 70oC ~ + 85oC |
| Weatherproofing standard | IP68 |
| Cable length | Customized |
| Jacket | Injection molding / heat shrink tubing |
| Connector applicable | N/DIN Type |
| Structure and performance parameters | ||||
| Cable | RF Connector | |||
| Material | Inner conductor | Copper clad aluminum wire (Φ2.74mm) | Inner conductor | Brass, tin phosphorus bronze, tinnedt, hickness≥3μm |
| Dielectri material | Physical foam polyethylene(Φ7.24mm) | Dielectri material | PTFE | |
| Outer conductor | Copper wire net (Φ8.13mm) | Outer conductor | Brass, tri-alloy plated, thinkness≥2μm | |
| Jacket | PE( Φ10.29mm) | Nut | Brass, ni plated, thickness ≥3μm | |
| Â | Â | Sealing ring | Silicone rubber | |
| Electrical and Mechanical Spec. | Characteristic impedance | 50Ω | Characteristic impedance | 50Ω |
| Vswr | ≤ 1.15(DC-3GHz) | Vswr | ≤ 1.15(DC-3GHz) | |
| Standard capacity | 78.4 pF/m | Frenquency | DC-3GHz | |
| Velocity | 85% | Dielectric withstanding voltage | ≥1500V | |
| Attenuation | ≥90dB | Contact resistance |
Inner conducter ≤ 5.0mΩ Outer conducter≤ 2.5mΩ |
|
|  |  | Dielectric resistance | ≥2500MΩ, 500V DC | |
|  |  | Durability | ≥500 | |
Detailed Images
Packing by Reels
The wood or plywood reels will be used, when the length of cable is more than 300m.Â
Packing by Paper Boxes
The paper boxes will be used, when the length of cable isn't more than 300m.Â
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For more information, please feel free to contact us!!Â
Application programs are normally developed in the CPU`s RAM memory and executed from RAM memory. If additional program integrity is desired, or operation of the PLC without a battery is desired, an optional EEPROM or EPROM can be installed in a spare socket (labeled PROGRAM PROM) on the Model 311/313 backplane or in a socket on the model 331/341 CPU module. EEPROMs can be written to and read from. EPROMs can be read when installed in the PLC; however, they must be written to using an external PROM programming device. Following is the procedure for adding or changing the EEPROM or EPROM. For clarity, the term PROM is used to refer to either an EEPROM or an EPROM. 1. Remove power from the system. 2. If 311/313 Remove all modules, including the power supply. Remove the plastic cover. 3. If 331/341: Remove CPU from backplane. Remove front plate and bezel. Unsnap circuit board and remove from case. 4. If the socket is the type which has a screw near the top edge (some versions of 311/331), loosen screw at top of PROM socket (CCW twist;). 5. If present, remove old PROM from socket. Replace with or install new PROM. Orient the PROM so the end with a notch (the top of the prom) is toward the top edge of the backplane. Pin 1 of the prom is the first pin on the left as you move counter–clockwise from the notch. On the 311/331, correct installation orients the notch toward the screw.
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