DP Cable流程

SpecificationDP 1.4 Cable Qualification SpecificationRevision: A00Proposed by Allion Labs, Inc.Table of Contents1.REVISION HISTORY (3)2. INTRODUCTION (4)3. MATERIAL REQUIREMENTS (5)4. MATERIAL RESTRICTED FOR USE (7)5. QUALIFICATION TEST REQUIREMENT SPECIFICATION (8)6. APPENDIX (12)1.Revision History2. Introduction2.1 PurposeThe purpose of this specification is to state the test methods and procedures for HP DP 1.4 Cables.2.2 ScopeThe procedures given herein are intended to provide HP and its suppliers a well defined set of tests and parameters for a given technology that are applied to the DP Cable qualification.Although there are many different ways to perform these tests and many more pieces of test equipment available, this document tries to simplify the selection of equipment and methodology to tried and tested methods and procedures.If newer or different equipment/technology is used to produce the test measurements then the spirit of the procedures should be followed and always refer to the test equipment vend or’s manuals for proper setup and measurement.2.3 References3. Material Requirements3.1 DP & Plug Connector3.1.1 Shell Material:3.1.1.1 Copper Alloy or SPCC or Zinc Alloy.3.1.1.2 Plating: Nickel Plated.3.1.2 Housing Material:3.1.2.1 Liquid Crystal Polymer or High Temperature Nylon.3.1.2.2 Color: Black.3.1.2.3 (UL94) rating: V-0.3.1.2.4 RoHS compliance: Yes.3.1.3 Contact Material:3.1.3.1 Base material by Copper Alloys.3.1.3.2 Yield strength: 66.7 kg/mm2 min.3.1.3.3 Contact material thickness: 0.15mm min.3.1.3.4 Contact surface condition: Forming type.3.1.4 Contact Plating:3.1.4.1 Contact surface plating material(s): Au.3.1.4.2 Contact surface plating thickness: 15 Micro inch Minimum.3.1.4.3 Under-plate material: Nickel.3.1.4.4 Under-plate thickness: 50 Micro inch minimum.3.1.5 DP Cable Case:3.1.5.1 Material: ABS+PC.3.1.5.2 Color: Black.3.1.6 DP Raw Cable:3.1.6.1 UL 20276(1P#30AWG+D+AL+MYLAR)*5C+4C#30AWG+MYLAR+ADB(AL 85%) OD 6.3~6.5mm.3.1.6.2 Cable jacket: PVC.3.1.6.3 Jacket Color: Black.3.1.6.4 Rated Voltage: 30V DC.3.1.6.5 Rated Temperature: 80℃.3.1.6.6 Flammability Test: VW-13.1.6.7 Dielectric Withstanding Voltage: 300V DC.4. Material Restricted for Use4.1 Product Content RestrictionsTable 1 lists substances that HP has banned or restricted. For each listed substance, a threshold limit has been established to account for unavoidable impurities consistent with regulatory requirements. Table 1 also lists allowed exemptions and references to specific restricted substances and CAS numbers. For RoHS substances, the substance is acceptable only if present in a homogenous material at a quantity at or below the threshold limit for a non-exempt application. Compliance with this specification is communicated to HP via Supplier Declaration of Conformity that will be obtained upon request during part qualification.5. Qualification Test Requirement Specification 5.1 Mechanical Performance5.2 Electrical Performance5.3 DP 1.4 Cable Assembly Signal Integrity Requirements6. Appendix6.1 Appendix A – Critical Dimension Requirement 6.1.1 DP Plug Dimension:6.1.2 mDP Plug Dimension:6.2 Appendix B – Signal Pin Assignments6.2.1 DP Plug to DP Plug Cable Assembly Wire Assignment:6.2.2 mDP Plug to mDP Plug Cable Wire Assignment:6.3 Appendix C – Cable Assembly S-Parameters 6.3.1 DP Connector Impedance:6.3.2 mDP Connector Impedance:6.3.4 Return Loss Limits:6.3.6 Power Sum Equal Level far-End Noise Limits:6.3.7 Intra-Pair Skew Limits:6.3.8 Inter-Pair Skew Limits:。

一：什么是D/PD/P 即是Documents against Payment ,分为即期和远期两种; 即期交单D/P Sight 指出口方开具即期,由代收行向进口方提示,进口方见票后即须付款,货款付清时,进口方取得货运单据;远期交单D/P after sight, 指出口方开具远期汇票,由代收行向进口方提示,经进口方承兑后,于汇票到期日或汇票到期日以前,进口方付款赎单;付款交单是的一种,卖方将单据交给银行,通过当地托收行,买方付款赎单提货;在此过程中银行不承担任何风险责任;D/P,即付款交单,是指出口人的交单是以进口人的付款为条件;它是托收方式中的一种,属商业信用;与其他有银行信用做担保的支付方式相比,具有手续简便,有利于扩大出口,但是收汇风险大的特点;二：DP的实际操作流程：即期和远期的操作流程基本如下：1买方和卖方在合同中约定采用D/P方式结算,这是基础；2卖方交付货物后准备全部单据包括货运单证如,和商业单证如汇票、发票等；3卖方向其往来外汇银行提出办理D/P托收的要求,填写托收指示书并交付全部单据；4卖方的外汇往来银行审核接受后收下托收指示书和全部单据,并开具收条给卖方；5卖方往来银行将全套单据分两批寄送买方往来银行该银行可以由卖方银行指定也可以是卖方在托收指示书中明确,后者居多；6买方银行收到全部单据后将单据向买方进行提示；7买方向买方银行支付款项即期D/P情况,或者买方审核单据后予以承兑并在到期时付款远期D/P的情况；8买方银行在收到买方款项后将全部单据交给买方；9买方银行将收到的款项转交给卖方银行,并由卖方银行转交给卖方;D/P Document against Payment是国际贸易中的一种重要付款方式,很多人将D /P翻译成："付款交单"; 其实这种翻译不太准确;深圳天捷的理解正确的翻译D/P是“交单付款” ;下面将做详细解释为什么叫“交单付款”比较合适;1D/P的简单流程：卖方将出口单据交给托收行,托收行将单据寄往国外代收行进行托收,买方付款赎单提货;银行不承担任何风险责任;所以这样一来,D/P的含义就很清楚了,只有先交单,客户再付款;2D/P的分类：D/P分为即期D/PD/P at sight和远期D/PD/P after sight;这点与信用证的即期信用证与远期信用证一样,分为远期与即期; 即期D/P的基本操作过程是：卖方开具即期汇票DRAFT AT SIGHT,并将出口单据提单,装箱单,发票等由代收行向买方提示,买方见票DRAFT后即须付款,货款付清时进口方取得出口单据,去提货清关;远期D/P指卖方开具远期汇票DRAFT 90 DAYS AFTER SIGHT,由代收银行向买方出指示,经买方审核单据无误后,先承兑,于到期日买方付清货款后取得货运单据;3D/P的风险：由于银行在D/P托收过程中,不承担任何风险和责任,相对情况下, D/P的风险比起其他付款另一种方式要大得多;但是如何学会控制D/P风险呢资深的外贸人员会通过银行先查询对方客户银行的同业授信度以及国家风险级别,客户诚信度来决定该客户能否做D/P,然后再通过贸易方式的具体执行,例如FOB风险或CNF等对货权的把握来确保D/P安全;4D/P有没有不符点做过信用证的朋友,肯定了解,信用证有很多条款,只要文件没有符合,都可能会产生不符点DISCREPANCY;那D/P有没有不符点呢答案是没有;因为D /P不同于跟单信用证,没有具体条款限制;但是做D/P需要注意的是,一般客户会在出口前,向卖方提出哪些文件需求,和文件要求;这样一来,客户的出口文件就应该根据客户要求出具;单据金额等都必须注意;如果因单据存在过多问题,导致客户拒绝赎单的话,就麻烦了;5D/P收费贵吗怎么收费D/P的收费跟L/C信用证一样,D/P费用主要分为国内银行和国外银行费用,一般国外银行一般是30-50美金之间,但是有时候,国外银行费用为0的情况也有发生;国内银行费用与信用证的银行费用是一样的,但是比起信用证操作,少了个通知费;6什么公司能做D/P答：一般有进出口权的正规企业,无论一般纳税人或小规模纳税人,均能通过开户银行托收D/P;如果有些企业公司工厂或SOHO个人没有进出口权可委托有资质的公司代收D/P;。

cable的制作工艺流程英文回答：The process of cable manufacturing involves several steps, starting from the design and selection of materialsto the final testing and packaging. Here is a breakdown of the cable manufacturing process:1. Design and Material Selection: The first step in cable manufacturing is designing the cable based on the specific requirements and applications. This includes determining the type of cable, its size, conductor material, insulation material, and any additional features such as shielding or armor. For example, if I am manufacturing a power cable for industrial use, I would need to select a conductor material that can handle high current and an insulation material that can withstand harsh environments.2. Conductor Manufacturing: Once the design is finalized, the next step is to manufacture the conductor.This involves drawing the conductor material, such as copper or aluminum, through a series of dies to reduce its diameter and increase its length. The drawn conductor is then annealed to improve its flexibility and conductivity. After annealing, the conductor is usually stranded by twisting multiple smaller strands together to increase flexibility and strength.3. Insulation and Jacketing: After the conductor is manufactured, it is time to apply the insulation and jacketing materials. The insulation material is extruded onto the conductor to provide electrical insulation and protection. Common insulation materials include PVC, XLPE, or rubber. The jacketing material is then applied over the insulation to provide mechanical protection. For example, in the case of a submarine communication cable, the insulation material used would be a special type of polyethylene with high water resistance.4. Shielding and Armoring: Depending on the cable's application, additional layers such as shielding or armoring may be added. Shielding is used to protect thecable from electromagnetic interference, while armoring provides physical protection. For instance, in a data cable used in a high-noise environment, a foil or braided shield may be added to prevent signal degradation.5. Testing and Quality Control: Once the cable is manufactured, it undergoes rigorous testing to ensure it meets the required specifications and standards. This includes tests for electrical conductivity, insulation resistance, mechanical strength, and environmental performance. For example, a power cable would be tested for its voltage withstand capability and insulation resistance.6. Packaging and Shipping: After passing the quality control tests, the cables are packaged and prepared for shipping. They are usually wound onto reels or spools and packed in boxes or crates for transportation to the customers. Proper packaging is essential to prevent any damage during transit.Overall, cable manufacturing is a complex process that requires careful design, material selection, and qualitycontrol. The final product should meet the specific requirements of the application and provide reliable performance.中文回答：电缆的制作工艺流程包括几个步骤，从设计和材料选择到最终的测试和包装。

DisplayPort物理层测试方案－BJLKDisplayPort的测试DisplayPort的设备生产厂家如果希望在自己的产品上打上DP的LOGO，需要到VESA协会指定的第三方的测试认证中心完成一致性测试，然后再向VESA协会申请LOGO。

台湾的Allion是DP的第一家认证测试中心。

测试认证中心测试的依据是VESA协会发布的DP的CTS (Compliance Test Standard),目前CTS的最新版本是1.1。

根据被测件的不同，CTS规定了相应的测试点。

TP1是Source芯片的管脚，TP2是Source的连接器，TP3是Device的连接器，TP4是Device芯片的管脚。

由于芯片的管脚从设备外面不容易接触到，所以DP的Source设备的测试选择的是TP2点，DP的Device设备的测试选择的是TP3点，具体的实现方法就是通过相应夹具把DP连接器的信号引出完成测试。

以下是DP测试点的定义。

DisplayPort的Souce测试由于Source设备可以自己产生DisplayPort的信号，因此Source的测试方法是用相应的测试夹具（fixture）把DisplayPort引出，用示波器采集，然后在示波器上用测试软件对信号的参数进行分析。

Source测试的测试点是在Source设备的连接器上。

由于DisplayPort信号速率比较高，为了进行可靠的探测，对于示波器的要求也非常高，DP的CTS要求进行DP信号的测试需要8GHz带宽的示波器。

要进行DP信号的测试，只有示波器是不够的，为了方便地进行DP信号的分析，还需要有测试夹具和测试软件。

测试夹具的目的是把DP信号引出，提供一个标准的测试接口以方便测试，测试夹具型号是W2641A。

W2641A上提供了所有DP高速和低速信号的连接测试点，同时为了方便结合网络仪或TDR进行阻抗测试，夹具上还提供了相应的校准接口。

下图是夹具的图示。

另外，VESA规定了很多DP信号的参数，对于电气参数，参考的是DP规范的物理层部分章节。

外贸dp流程
外贸DP流程指的是Documents against Payment，即付款交单方式的外贸流程。

以下是其基本步骤：
1. 出口商起草外销合同，与进口商进行谈判并签署合同。

2. 出口商根据合同规定装货，填写托收委托书，开出即期汇票或远期汇票，连同全套货运单据送交银行代收货款。

3. 托收行将汇票连同货运单据，并说明托收委托书上的各项指示，寄交进口地代理银行。

4. 提示行收到汇票及货运单据，即向进口人做出付款提示。

5. 进口人付清货款，赎取全套单据。

6. 代收行电告（或邮告）托收行，款已收妥转账。

7. 托收行将货款交给出口人。

以上信息仅供参考，如需更详细的流程信息，建议咨询外贸行业专业人士。

电信电缆制造业的工序流程The process of manufacturing telecommunications cables involves several stages that are crucial to producing high-quality products. 电信电缆制造的流程包括几个关键阶段，这对生产高质量的产品至关重要。

The first step in the process is to design the cable, taking into account the specific requirements of the project. This involves determining the type of cable needed, the materials to be used, and the overall configuration of the cable. Once the design is finalized, the next step is to procure the necessary materials. This can include copper or fiber optic cables, insulation materials, shielding materials, and connectors. 过程的第一步是设计电缆，考虑项目的具体要求。

这涉及确定所需的电缆类型、使用的材料以及电缆的整体配置。

一旦设计完成，下一步是采购必要的材料。

这可能包括铜制或光纤电缆、绝缘材料、屏蔽材料和连接器。

After all the materials are obtained, the next step is to prepare the conductors. This involves stripping the insulation from the copper wires, twisting them together to form a cable core, and applying any necessary shielding. The conductors are then insulated to protectthem from environmental factors. The insulated conductors are then twisted together to form the cable assembly. Once the cable assembly is completed, it is tested for continuity and quality control. 当所有材料都准备好之后，下一步是准备导体。

电线电缆护套工艺流程英文回答：The process of wire and cable sheathing involves several steps to ensure the protection and insulation of the wires. Let me walk you through the process.1. Material Preparation: First, we need to gather all the necessary materials for the sheathing process. This includes the cables, the sheathing material (such as PVC or polyethylene), and any additional components like fillers or armor.2. Stripping: The next step is to strip the outer layer of the cable to expose the inner wires. This can be done manually using a wire stripper or automatically using a stripping machine. The stripped area should be clean and free from any debris or insulation material.3. Sheathing: Once the wires are exposed, the sheathingmaterial is applied. This can be done through various methods, including extrusion or wrapping. In extrusion, the sheathing material is melted and then applied to the cable using a die. In wrapping, the sheathing material is wrapped around the cable in multiple layers.4. Curing: After the sheathing material is applied, it needs to be cured or set. This can be done through aheating process, where the sheathed cables are passed through an oven or a heating chamber. The temperature and duration of the curing process depend on the type of sheathing material used.5. Inspection: Once the curing process is complete, the sheathed cables are inspected for any defects or inconsistencies. This includes checking for proper adhesion, thickness, and overall quality of the sheathing material. Any issues found during inspection are addressed and corrected.6. Testing: After inspection, the sheathed cables undergo various tests to ensure their functionality anddurability. This includes tests for electrical conductivity, insulation resistance, and mechanical strength. The cables must meet the required standards and specifications before they can be approved for use.7. Packaging: Finally, the sheathed cables are packaged and prepared for shipment or installation. They are usually coiled or spooled and placed in protective packaging to prevent damage during transportation.中文回答：电线电缆护套的工艺流程包括几个步骤，以确保电线的保护和绝缘。

cable的制作工艺流程英文回答：Cable Manufacturing Process Flow.The cable manufacturing process flow is a complex and multi-step process that involves the following stages:1. Raw Material Preparation:Raw materials, such as copper and aluminum, are received and inspected.The materials are then processed to meet the required specifications.2. Conductor Stranding:Stranding is the process of twisting individual wires together to form a conductor.This increases the strength and flexibility of the conductor.3. Insulation Extrusion:Insulation material is extruded over the conductor to provide electrical insulation and protection.The thickness and type of insulation depend on the intended use of the cable.4. Jacketing:A protective jacket is extruded over the insulation to protect it from moisture, abrasion, and other environmental factors.The jacketing material is typically PVC, PE, or rubber.5. Testing:The cable is subjected to a series of tests to ensure its electrical and physical properties meet the required standards.Tests include electrical resistance, insulation resistance, and tensile strength.6. Quality Assurance:Throughout the manufacturing process, qualitycontrol measures are implemented to ensure the finished product meets the specified requirements.Inspections and audits are performed to identify and correct any defects.7. Packaging and Shipping:The finished cable is packaged and labeled for shipping to customers.Special attention is paid to protect the cableduring transport.中文回答：电缆制造工艺流程。