Data Controls GS-2328KX Installation And Getting Started Manual
                                               | |
Contents
| 
Publication date: Feb., 2012Revision A1311000BASE-T PINASSIGNMENTSAll 1000BASE-T ports support automatic MDI/MDI-X operation,so you can use straight-through cables for all networkconnections to PCs or servers, or to other switches or hubs.The table below shows the 1000BASE-T MDI and MDI-X portpinouts. These ports require that all four pairs of wires beconnected. Note that for 1000BASE-T operation, all four pairs ofwires are used for both transmit and receive.Use 100-ohm Category 5, 5e or 6 unshielded twisted-pair (UTP)or shielded twisted-pair (STP) cable for 1000BASE-Tconnections. Also be sure that the length of any twisted-pairconnection does not exceed 100 meters (328 feet).Table 12: 1000BASE-T MDI and MDI-X Port PinoutsPin MDI Signal Name MDI-X Signal Name1 Bi-directional Pair A Plus (BI_DA+) Bi-directional Pair B Plus (BI_DB+)2 Bi-directional Pair A Minus (BI_DA-) Bi-directional Pair B Minus (BI_DB-)3 Bi-directional Pair B Plus (BI_DB+) Bi-directional Pair A Plus (BI_DA+)4 Bi-directional Pair C Plus (BI_DC+) Bi-directional Pair D Plus (BI_DD+)5 Bi-directional Pair C Minus (BI_DC-) Bi-directional Pair D Minus (BI_DD-)6 Bi-directional Pair B Minus (BI_DB-) Bi-directional Pair A Minus (BI_DA-)7 Bi-directional Pair D Plus (BI_DD+) Bi-directional Pair C Plus (BI_DC+)8 Bi-directional Pair D Minus (BI_DD-) Bi-directional Pair C Minus (BI_DC-)CABLE TESTINGFOR EXISTINGCATEGORY 5CABLEInstalled Category 5 cabling must pass tests for Attenuation,Near-End Crosstalk (NEXT), and Far-End Crosstalk (FEXT).This cable testing information is specified in theANSI/TIA/EIA-TSB-67 standard. Additionally, cables must alsopass test parameters for Return Loss and Equal-Level Far-EndCrosstalk (ELFEXT). These tests are specified in theANSI/TIA/EIA-TSB-95 Bulletin, “The Additional TransmissionPerformance Guidelines for 100 Ohm 4-Pair Category 5Cabling.”N OTE: That when testing your cable installation, be sure toinclude all patch cables between switches and end devices.ADJUSTINGEXISTINGCATEGORY 5CABLING TO RUN1000BASE-TIf your existing Category 5 installation does not meet one of thetest parameters for 1000BASE-T, there are basically threemeasures that can be applied to try and correct the problem:1. Replace any Category 5 patch cables with high-performanceCategory 5e or Category 6 cables.2. Reduce the number of connectors used in the link.3. Reconnect some of the connectors in the link. |
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine