HJVV Bureau of symmetrical cable used in digital switching equipment
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-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m
- Supply Capability:
- 100000 m/month
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一、application scope
The cable is mainly used in digital switching equipment internal or short section of the connection between digital switching equipment, the highest 10 MHZ transmission frequency.Can also be used as an internal or and other digital devices between the short section of the connection.Can meet the digital switching system transmission of high bit rate digital signal.With smaller diameter, ease of installation and connection.
Product the YD/T 818-818 standard design and production.Its technical indicators fully meet the standard requirements.The structure stability of products reach the international similar products level.
二、cable type
Cable type by type and specification, it said the following:
HJVV
HJVVP
HPVV
HJCVV
三、cable construction
1, the conductor: the nominal diameter of 0.25 mm or Φ Φ single tin round copper wire 0.5 mm.
2, insulation: use PVC insulation, conductor chromatography using monochromatic or additive color ring.
Line 3, line to: to adopt the section from twisting synthesis of crosstalk in order to meet the strict requirements, and in accordance with the provisions of chromatography in order to easy to distinguish.
4, cable conductor: line to press with twisted into cable core type or unit type.Overlap with a layer of polyester film around the package.
5, block: cable can have cable shielding.According to user requirements cable can be blocked.Shielding have single plastic coated aluminum foil overlapping winding and shielding.Tin plating round copper wire textile block, or two methods at the same time use the shielding.
6, sheath: sheath for PVC plastic, color is gray.Or the color of the user requirements.
performance (20℃)
| No | Project | Unit | Standard | length；converted based on KM | ||
| 0.25mm | 0.5mm | |||||
| 1 | Single conductor dc resistance | Ω/km | ≤393.0 | ≤97.8 | measurement/L | |
| 2 | Insulation dielectric strength 1 min | V | AC 1000 DC 1400 | |||
| 3 | Each root insulated wires and the rest of the grounding and shielding of the insulation resistance between wire DC100 ~ 500 v | MΩ.km | +20℃ ≥500 +70℃ ≥1 | measurement×L | ||
| 4 | Shielded cable capacitance between core and shielding | nF/km | ≥50 | measurement/L | ||
| 5 | Near end crosstalk attenuation 1MHz 10MHz | dB/10m | ≥65 In study | ≥70 In study | ||
| 6 | The characteristic impedance 1MHz 10MHz | Ω | 105±15 97±15 | 95±15 90±15 | ||
| 7 | Natural attenuation 1MHz 10MHz | dB/km | ≤56 ≤130 | ≤32 ≤75 | Measurement/L | |
| 8 | delay 1MHz 10MHz | μs/km | ≤6.4 ≤5.7 | measurement/L | ||
| 9 | Wire disconnection, mixed line | - | Lines to keep, don't mix | |||
| 10 | Shielding continuity | - | continuous | |||
- Q: my friend and i were installing a subwoofer in his car and the rem cable touched the amp and caused a short. the cd player does not turn on any more and we could not find any problem anywhere the only fuse blown was the fuse on the power wire for the amp and that should not have any effect on the cars cd player what could be wrong? (the fuse on the back of the cd player was not blown this leads me to believe there is nothing wrong with the cd player and it is not fried)
- Best possible answer, you could of just simply shorted the radio. Unfortunately it may be the truth.
- Q: THE PROBLEM IS THE POWER CABLES HAVE 20 PINS AND THE ENTRANCE OF THE MOTHERBOARD HAS 22! SO HOW DO I HAVE TO CONNECT IT?
- Your motherboard probably has 24pins (ATXv2.0+ spec). Your 20pin supply is an older model. You can purchase a 20pin male to 24pin female connector for about $5. Check online, eg. cyberguys, OKorder, etc.
- Q: I'm about to order everything to put a new sound system in my Jeep Wrangler and I've been planning the locations to run new wires and cables. I got to looking at the area's where I could run the power cable for the amp and have come to 2 conclusions. I could either drill a hole in a very difficult to reach but hidden area behind the dash and try to hide the cable on the interior of the Jeep all the way to the rear where the amp is.. or, I could run the cable inside the hollow frame rails (which have many pre-drilled holes to slip the cable in and out of) under the Jeep and then just drill a hole to the interior in an easy to reach location near the amp. My only concern is that the cable's insulation will breakdown and crack prematurely due to exposure to water and road salts.. is this a real risk if I run the cable on the exterior of the vehicle? Or will the cable hold up just as well as any other cable such as those in the engine compartment? Thanks for your help!
- Keep it inside. Run it under the sill plates and carpet (or rubber flooring). If you put it outside and it wears through the insulation (for what ever reason, elements, chaffing) it could cause a serious problem, even a fire, as it would be directly to the battery.
- Q: Can I use 300 v power cable on a cx500?
- The cable isn't the issue, it's the power coming from the wall. THat's a 120v/240v power supply. More than that and it's crispy.
- Q: can i run a ati radeon hd 2900xt with a two 4pin molex power cable?
- Direct Answer : No you can't. Indirect Answer : You can, you need a converter though, there are converters that connect two 4 pin molex power cables into one six pin video card cable. PS. If your power supply doesn't have a 6 pin cable, more likely than not this means your power supply will not be able to handle video cards like the Radeon 2900XT.
- Q: some one told me that cisco get this router without AC power it get the power from the network cable?
- Let's just clarify a thing or two: Most networking equipment uses AC power. All routers and switches (or, at least 99% of them) must be powered from an AC wall outlet. However, a wireless access point or an IP telephone may receive power from it's attached ethernet cable. Where does the power come from? The device on the other end of the cable must be supplying power through the cable. This is called PoE (power-over-ethernet) and there is at least one IEEE standard for this, and one Cisco-proprietary standard. Typical devices that can supply power are switches (not all switches) and power injectors. A power injector is a palm-sized device that you insert between a non-PoE switch and a client device to inject power into the ethernet cable. The injector must be wall powered to function. Some routers, particularly ISR (integrated services routers) routers can suypply PoE, too. So, usually routers do not receive PoE. Often, switches provide PoE. Usually, access points receive PoE. Make sense?
- Q: there are two cables one thats blue and one thats black what are they called?
- One is the power supply cable (Black one) and since its blue the second one would be a VGA cable. Hope this helps.
- Q: I found a box of power cables that I could use to hook up my PC and I know some of them were for old CRT monitors. Is it safe to use any of them? I'm not sure which one actually came with the monitor.
- they' make the ends specific for each type it can be used on. so if it fits. yes . best to look up the monitor online and see what it is so you know for sure what you have will work.
- Q: I never expected this problem,but I have an HP with a liteon power supply.The thing has these weird clips on the power cables that go into the hard drive.How do I free the hard drive power cables? I have to put in a new power supply for my video card.
- SATA just pulls out.. actually so does molex connectors (for IDE drives).. just very tough sometimes to get them out. If its black and kinda thin, then its probably SATA and they should just pull straight out.
- Q: And can u please explain in detail how u get xbox live i dont want any free survey things just like do i have to buy a card how much it is do i need extra cables? ok thx!
- Sometimes the live cards go on sale at Target
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HJVV Bureau of symmetrical cable used in digital switching equipment
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m
- Supply Capability:
- 100000 m/month
OKorder Service Pledge
OKorder Financial Service
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