Test the Integrated Wiring System

There are still a lot to learn about the test of the Integrated Wiring System. Here we mainly introduce the main content and specific specifications of the test, including the evaluation of copper performance and the evaluation of Optical Fiber Performance. Hope to help you.

Generally, the acceptance of the data center focuses on UPS power supply, IDC grounding resistance, grounding network, power harmonic components, power supply zero-to-ground voltage, air conditioning temperature and humidity, and fresh air of the new fan, the positive pressure of the data center, site monitoring and alarm system, decoration smoothness, cleanliness of the data center, lighting system, power socket, and so on. Rectification is required when unqualified items are accepted, and rectification is required before re-acceptance. In terms of the basic network architecture, it is also essential to authenticate the performance of the cabling system. The testing objects of the cabling system are copper cables and optical cables.

Copper Performance Evaluation
Test Indicators of the copper cable performance integrated wiring system include crosstalk (that is, the signal impact of a pair of twisted wires from other twisted wires), insertion loss (or attenuation, that is, the signal power loss caused by the transmission distance) return Loss (signal reflection due to impedance mismatch in the connected cable link, the characteristic impedance of the UTP cable is generally 100 OHM) latency deviation (the difference in the time at which different cables send signals at the same time. What is the United States SYSTIMAX? GigaSPEED? XL 6 solutions provide performance that is superior to TIA-568B and ISO/IEC standards.

Optical Fiber Performance Evaluation
The test of the optical fiber cabling system is divided into two types: one-class test (loss length test) and two-class test (OTDR test.
During the on-site optical fiber link acceptance test, everyone is used to "attenuation" or "loss" to determine the installation quality of the tested link. In most cases, this is a very effective method. Common standards such as ISO11801, TIA568B, and GB50312 tend to use this method called "One-class testing. Features: The test parameters include "loss and length" indicators, and the test results are judged as "pass/fail. However, the first-class test only cares about whether the total attenuation value of the optical fiber link meets the requirements, and does not care about the quality of the link that may affect the bit error rate connection points (connectors, splices, jumpers, etc, therefore, the primary target of the Integrated Wiring System test is the low-speed optical fiber cabling Link (Gigabit and below ).

For some demanding users, the corresponding level of the on-site test optical fiber will be proposed for "Doubt" or other reasons, such as proof that the optical fiber link is OM3 rather than OM2. This test scenario is often difficult to implement. Generally, you can only perform a differential mode latency (DMD) test in the laboratory.

The Multimode Optical Fiber tests and bandwidth indicators of LED light-emitting devices used the Overfilled emission method (Overfilled Launch-OFL ). A new integrated wiring system testing method is required because Laser Light Emitting Devices (or VCSEL) must be used for gigabit transmission. What is the United States SYSTIMAX? LazrSPEED has a nine-digit-Number of broken-headed computers? One of the blueprint for the development of 0 Gbit/s application specifications. This also led to the release of the laser optimized Multimode Optical Fiber standard, packet TIA-492AAAC-A optical fiber specification (also known as ISO/IEC 11801 OM3 optical fiber), TIA FOTP-220 (known as IEC-60793-1-49) Differential Mode delay (DMD) test method. OM3 optical fiber is included in ANSI/EIA/TIA-568B with ISO/IEC 11801 Cabling Standards.

The LazrSPEED solution of the United States s goes beyond the above standards and is very efficient when used for 10 Gbit/s long-range cabling. The LazrSPEED solution provided by s covers 150 m, 300 m, and 550 m.

If you need to perform the second-class test (OTDR), The OTDR test jumper is basically the same as the first-class test jumper, but generally tends to select a longer test jumper to avoid the test dead zone. In order to clearly evaluate the first connected optical fiber link connector, you can add a "transmit Compensation Optical Fiber" before the link to be tested (to improve accuracy and avoid dead zone ). To clearly assess the last link connector, you can add a section "Receive Compensation Optical Fiber ".

To ensure that the Integrated cabling system can be tested stably after the OTDR device is connected to the link, the test procedure generally requires that the Jumper and the instrument port be cleaned before the test, alternatively, use an optical fiber microscope to check the end face quality of the patch cord. Some OTDR instruments will automatically evaluate the end face connection quality of the Integrated Wiring System Test jumper before starting the test.

In addition, the overall acceptance of the data center should also consider green, intelligent, security, stability, effectiveness and other aspects of comprehensive certification.

1. Integrated Network Cabling System becomes the mainstream of intelligent technology
2. Comprehensive analysis of the development trend of the smart wiring Management System
3. Describe the application knowledge of Integrated Wiring System in detail
4. Looking forward to the future of smart network Integrated Wiring"
5. Technical explanation on 10 Gigabit unshielded copper cabling