Application & Electrical Performance. Category 5e Silver Solution

Transcription

1 Application & Electrical Performance Category 5e Silver Solution

2 CONTENTS Page No. Scope 3 Executive Summary 4 Transmission Test Method and Results 5-7 Electrical Test Method and Results 8-11 Definitions 12 2

3 SCOPE Third-Party Testing a Must and Why Every company that becomes a technical leader in its field of expertise has likely invested heavily in research. Each year, the Draka cable company and the Molex connector company each reinvest millions of dollars on facilities, state-of-the-art equipment, new tooling and design processes in order to deliver components and systems that exceed the industry standards and our customer expectations for outstanding performance. We recognize, however, that it is not uncommon for customers to request objective independent assurance of a product's reliability and performance. To this request, Draka-Molex responds with independent verification through internationally recognized third-party testing facilities. Independent third-party testing organizations are critical because they remove the potential or perception of personal bias. By outsourcing independent testing, Draka-Molex states to customers that we are dedicated to unsurpassed cabling system performance and will undergo third party testing to validate our products and assertions. Draka-Molex customers can rest assured that our products will meet or exceed industry standards. Transmission Through-put Testing: A Definer of Network Performance Traditionally, cables and connectivity have been tested separately to show the standards compliance of each component. But what happens when components are installed and the network is operating? Cable plants that appear to be fully compliant based on component testing can nevertheless experience difficulties when transmitting information in real-time. Characterizing and testing overall network operation is critical. For that purpose, at Draka-Molex we subject our links and channels to transmission performance testing as conducted by ETL SEMKO (Intertek Testing Services). This testing documents the operating performance of our products when used in a network as driven by high through-put applications. Electrical Testing: A Definer of Network Performance The other key definer of network performance is compliance with defined industry standards. For this determination of cable plant performance, at Draka-Molex we subject our links, channels and components to standards based electrical performance tests as conducted by ETL SEMKO (Intertek Testing Services). ITS ETL SEMKO confirms our performance to all the critical electrical parameters of TIA/EIA 568B.2 4/2001 standards. ETL SEMKO ETL SEMKO, a division of Intertek Testing Services Ltd. (ITS ETL SEMKO) is the world's largest product and commodities testing organization and operates 240 laboratories and 469 offices in 93 countries throughout North America, Europe and Asia. ITS ETL SEMKO has a Cabling System Channel/Link Verification Program designed to objectively test and verify the performance of manufacturers' cabling products and connectivity hardware in a LAN environment. After purchasing product off the open market, ITS ETL SEMKO tests products in channel environments to verify performance to the TIA/EIA 568-B and ISO/IEC standards. Through rigorous tests such as data through-put or electrical parameter NEXT, PSNEXT, PSELFEXT, etc. interoperability and standards compliance between cabling products and connectivity specifications are proven. Visit the ITS ETL SEMKO web site at 3

4 Executive Summary Transmission Through-put Channel Performance (Active) The Draka-Molex Cabling Systems Category 5e Silver Channel Solution was subjected to IEEE 802.3ab-1999 section test. This test subjects the path to (10-Gigabit) packets of Transmit (TX) Frames and Receive (RX) Frames and checks for Cyclical Redundancy Checksum (CRC) Errors. To pass this test CRC Errors are limited to 1 error in (10-Gigabit) packets sent/received in accordance with the standard. Conclusion: The Draka-Molex D Category 5e Silver Solution exhibited Zero CRC transmission errors under test. Electrical Channel Performance (Passive) The Draka-Molex Cabling Systems Category 5e Silver Channel Solution was subjected to ASTM D /98 and TIA/EIA-568-B.1 and B.2 4/2001 electrical performance standards. These tests measure the electrical performance characteristics of the channel for Attenuation (IL), Near End Cross Talk (NEXT), Power Sum NEXT, Equal Level Far End Cross Talk (ELFEXT), Power Sum ELFEXT, and Return Loss (RL) from 0.5MHz to 360MHz. Conclusion: The Draka-Molex Category 5e Silver Solution exceeds the electrical performance parameters of these standards for all parameters by a meaningful margin. Electrical Channel Performance Beyond the Standards Beyond the well defined performance criteria of the international standards bodies there are reputable structured cabling industry participants that have established electrical performance criteria that exceed the published standards in order to characterize the performance of manufacturers products. Listed below are two such high profile programs and how the Draka-Molex Category 5e Silver Channel Solution compares with the published criteria of the Graybar VIP and Anixter XP6 vendor qualification programs. Conclusion: The Draka-Molex Category 5e Silver Solution exceeds the electrical performance parameters of these industry qualification programs. Parameter TIA 568 Graybar VIP1000 Anixter XP6 Draka-Molex** IL 100MHz (Attn*) PSNEXT 100MHz PSACR 100MHz (calc.) PSELFEXT 100MHz 14.4 NS RL 100MHz 10.0 NS F max (positive PSACR) NS 160 F max (tested to) TIA 568: TIA/EIA 568 B.2 4/01 Standard Graybar VIP1000: Graybar VIP1000 channel criteria per Anixter XP6: Anixter XP6 channel criteria per * The lower the number the better The higher the number the better NS Not Specified ** Draka-Molex worst case performance per ITS ETL SEMKO tests, report No S, March

5 Transmission Test Method & Results Summary The following details the methodology and results of active testing as produced by ITS ETL SEMKO at the request of Draka-Molex. The testing characterizes the performance of the Draka-Molex Category 5e Silver Solution and is specific to active data through-put and the frequency of errors as measured by Cyclical Redundancy Checksum (CRC) error measurements. ITS ETL SEMKO tested a four-connector channel configuration and information presented here was sourced from ITS ETL SEMKO Test Report No performed March 15-18, Actual test report available upon request from Draka-Molex. Standards Used ASTM D , dated December 10, 1998, Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable TIA/EIA-568-B.1, dated April 12, 2001, Commercial Building Telecommunications Cabling Standard ISO/IEC N Second Edition, Information Technology-Cabling for Customer Premises, dated April 19, 2001 Procedure & Measurements For this testing the packet size was 64 bytes, which includes 4 bytes of error-control information and details of its origin and final target. Smartbit cards transmitted (TX Frames) and received (RX Frames) frames/packets and measured for Fragmented or Undersized packet errors due to collision occurrences or Over-sized packet transmission errors. In addition, the path was tested for CRC errors (see definition below). Cyclical Redundancy Checksum (CRC) Errors CRC, or cyclic redundancy check, errors occur when the packets are somehow damaged in transit. When each packet is transmitted, the MAC layer of the transmitting device computes a frame check sequence (FCS) value based on the content of the packet. The receiving station performs the same calculation; if the FCS values differ, the packet is assumed to have been corrupted and is counted as a CRC error. CRC errors can result from MAC layer hardware problem causing an inaccurate computation of the FCS value, or from other transmission problem that has garbled the original data. Requirements CRC Errors are limited to 1 error in (10-Gigabit) packets sent and received in accordance with IEEE ab-1999 section

6 Sample Description: Channel (4 Connector) Component ID Manufacturer Part Number Description 3 Draka Comteq SuperCAT360 CMP Horizontal Cable Helix/HiTemp Cables, Inc. 5,7 Molex Premise Networks PID Patch Panel 1,8 Molex Premise Networks PCD OH Equipment Cord 6 Molex Premise Networks PCD OH Cross Connect 4 Molex Premise Networks KPD Block 2 Molex Premise Networks KSJ Wall Outlet Equipment List The following equipment was employed in conducting the tests. Equipment Used Model Number Serial Number Control Number Calibration Date Netcom Systems Multiport Smartbits Rev. C1 N/A N/A Port/Stream/Analysis System Chassis Netcom Systems Smartcard GX-1420B N N/A N/A Netcom Systems Smartcard GX-1420B N N/A N/A 6

7 Transmission Test Results* Draka-Molex Category 5e Silver Solution Transmit Frames (TX Frames): Number of data packets sent by the Smartbits card. Receive Frames (RX Frames): Number of data packets received by the Smartbits card. Received Triggers (RX Triggers): Packets of information containing a certain set piece of information that causes the packet to be counted by the receiving unit. Fragmented/Undersize Packets Errors: The receiving port counts Fragmented packets, packets missing information, after a collision occurs. Undersized packets are packets that had less than 64 bytes of data when received. Oversize Packets Errors: Packets that arrive at the receiving Smartcard with a size greater than 1518 octets. SmartCounters,23,3,1,0,0,0 Events Events 01 GX-1420B 05 GX-1420B Tx Frames 10,064,417,203 10,064,262,708 20,128,679,911 Rx Frames 10,064,414,450 10,064,265,464 20,128,679,914 Rx Bytes 644,122,524, ,112,989,640 1,288,235,514,428 Rx Triggers 10,064,414,450 10,064,265,463 20,128,679,913 CRC Errors Oversize Frag/UnderSize Tx From Stack Rx To Stack ARP Replies Sent ARP Requests Sent ARP Replies Received ARP Requests Received PING Replies Sent PING Requests Sent PING Replies Received PING Requests Received VLAN Frames IP Frames Received IP Checksum Errors SmartCounters,23,3,1,0,0,0 Events Events 01 GX-1420B 05 GX-1420B Tx Frames 10,018,233,161 10,018,100,851 20,036,334,012 Rx Frames 10,018,100,849 10,018,233,159 20,036,334,008 Rx Bytes 641,158,454, ,166,922,310 1,282,325,376,710 Rx Triggers 10,018,100,850 10,018,233,161 20,036,334,011 CRC Errors Oversize Frag/UnderSize Tx From Stack Rx To Stack ARP Replies Sent ARP Requests Sent ARP Replies Received ARP Requests Received PING Replies Sent PING Requests Sent PING Replies Received PING Requests Received VLAN Frames IP Frames Received IP Checksum Errors SmartCounters,23,3,1,0,0,0 Events Events 01 GX-1420B 05 GX-1420B *Actual information from ITS ETL Semko Test Report No performed March 15-18, Three separate channels tested, Appendices A, B, C results. Tx Frames 10,013,133,321 10,012,977,007 20,026,110,328 Rx Frames 10,013,129,242 10,012,981,089 20,026,110,331 Rx Bytes 640,840,271, ,830,789,648 1,281,671,061,132 Rx Triggers 10,013,129,242 10,012,981,088 20,026,110,330 CRC Errors Oversize Frag/UnderSize Tx From Stack Rx To Stack ARP Replies Sent ARP Requests Sent ARP Replies Received ARP Requests Received PING Replies Sent PING Requests Sent PING Replies Received PING Requests Received VLAN Frames IP Frames Received IP Checksum Errors

8 Electrical Test Method and Results Summary The following details the methodology and results of testing as produced by ITS ETL SEMKO at the request of Draka-Molex. The testing characterizes the performance of the Draka-Molex Category 5e Silver Solution and is specific to electrical performance relative to the industry standards. ITS ETL SEMKO tested a four-connector channel configuration and information presented here was sourced from ITS ETL SEMKO Test Report No S performed March 8, Actual test report available upon request from Draka-Molex. Test Initial testing of the cabling configurations as defined in, and to the requirements of, TIA/EIA 568-B.1 for Category 5e Cabling Systems. Standards Used ASTM D , dated December 10, 1998, Standard Test Methods for Electrical Performance Properties of Insulations and Jackets for Telecommunications Wire and Cable TIA/EIA-568-B.1, dated April 12, 2001, Commercial Building Telecommunications Cabling Standard TIA/EIA-568-B.2, dated April 23, 2001, Commercial Building Telecommunications Cabling Standard ISO/IEC N Second Edition, Information Technology - Cabling for Customer Premises, dated April 19, 2001 Sample Description: Channel (4 Connector) Component ID Manufacturer Part Number Description 3 Draka Comteq SuperCAT360 CMP Horizontal Cable Helix/HiTemp Cables, Inc. 5,7 Molex Premise Networks PID Patch Panel 1,8 Molex Premise Networks PCD OH Equipment Cord 6 Molex Premise Networks PCD OH Cross Connect 4 Molex Premise Networks KPD Block 2 Molex Premise Networks KSJ Wall Outlet Equipment List The following equipment was employed in conducting the tests. The testing was performed using a Hewlett Packard 46152A Automatic Cable Test System. The system was calibrated using a full 2 port calibration with 801 linearly spaced data points, 300 Hz I/F bandwidth and a 5-second sweep time. The swept frequency measurements were performed from 0.5 MHz to 360 MHz. Equipment Used Hewlett Packard Automatic Cable Test System Model Number Serial Number Control Number Calibration Date HP46152A 3903U01003 N/A 03/15/01 8

9 Electrical Test Results* Draka-Molex Category 5e Silver Solution *Actual information from ITS ETL Semko Test Report No S performed March 8, Three separate channels tested. 9

10 Electrical Test Results* Draka-Molex Category 5e Silver Solution *Actual information from ITS ETL Semko Test Report No S performed March 8, Three separate channels tested. 10

11 Electrical Test Results* Draka-Molex Category 5e Silver Solution *Actual information from ITS ETL Semko Test Report No S performed March 8, Three separate channels tested. 11

12 Definitions* Attenuation (ATTN) ATTN is the measurement of signal loss as information propagates along cabling components. In simple terms, how much lower is the signal at the receiver end of the cable when compared to the transmitter end? Key influences on the amount of insertion loss are conductor size, insulation material, signal frequency and length of cable. The higher the frequency and longer the length, the higher the signal loss. Insertion loss is measured in a decibel (db) which is a logarithmic ration of measurement to reference voltage or power values. For every 3 db of loss, 50 percent of the signal power is lost. The lower the ATTN db level the better. Near-End Crosstalk (NEXT) NEXT is the measurement of pair-to-pair unwanted signal coupling in db from adjacent pairs. This measurement is taken at the same end of the cabling where the signal is transmitted, which is the near-end. In simple terms, this refers to the unwanted noise that one pair of cabling picks up when compared to the other cabling pairs and is an indication of how good the isolation is between the pairs. The higher the NEXT db level the better. Equal Level Far-End Crosstalk (ELFEXT) ELFEXT is the measurement of far-end crosstalk (FEXT) with the effects of signal loss taken into account. FEXT occurs when signals on one twisted pair are coupled to another pair as they arrive at the far end of a multi-pair cable system. ELFEXT is calculated by subtracting the insertion loss value for the pairs involved from the FEXT. The ELFEXT calculation was created due to full duplex applications and protocols (i.e. 1000Base-T). It is important to characterize the performance of both the transmitter and receiver ends of the cabling system. ELFEXT levels that do not meet the requirements can result in lost data and more re-transmits. The higher the ELFEXT db level the better. Return Loss (RL) RL is the measurement of signal level in db reflected back to the receiver. These reflections are due to impedance mismatches the signal encounters in the cabling system. Varying impedance levels for the components in a system, materials and termination practices can cause these mismatches. An impedance mismatch is like an object in the road that you have to navigate around to continue forward. This is what the data packets see in the cabling system as they propagate along. If the impedance mismatch is too great, the data reflects back to the transmitter with no complete data packets reaching the receiver. The higher the RL db level the better. Attenuation to Crosstalk Ratio (ACR) ACR is the difference between insertion loss (IL) and NEXT, where the result is an indication of usable signal and bandwidth of a cabling system. As the signal frequency increases, the IL increases and the NEXT decreases to a point where the difference is zero, which would be considered the usable bandwidth of the system. A negative ACR indicates that the NEXT contribution is less than the IL, which would be a system that is losing more signal strength than it can transmit to the receiver. In that case, the received data will be fragmented and unreadable. Even though the highest referenced frequency requirement for Category 6 is 250 MHz, the ACR derived requirements is slightly less. ACR is not a stated requirement of Category 5e or 6, although it is calculated based on the NEXT and IL requirements. If a cabling system meets both the IL and NEXT requirements, it will meet the ACR requirement. The higher the ACR db value the better. PowerSum Near-End Crosstalk (PSNEXT) and PowerSum Equal Level Far-End Crosstalk (PSELFEXT) PSNEXT and PSELFEXT is the calculation taking into account the combined crosstalk from all pair combinations. This is important due to full duplex applications where simultaneously, all pairs in the cabling will be active. PSNEXT and PSELFEXT is a better characterization of the isolation level of the cabling. The higher the PSNEXT or PSELFEXT db value the better. PowerSum Attenuation to Crosstalk Ratio (PSACR) PSACR is the calculation taking into account the combined crosstalk and insertion loss from all pair combinations. This is important for full duplex applications. In determining the usable bandwidth of a cabling system, PSACR is an important consideration. For Category 6, the PSACR is positive to 200 MHz, even though the highest referenced requirement frequency is 250 MHz. The more positive the PSACR value the better. *Definitions as described by Leviton Voice & Data Division, June