SMC Networks SMC TigerStack III SMC6826MPE - Manual (Page 74)

C
ABLES
B-6
Table B-2 1000BASE-T MDI-X and MDI Port Pinouts
Cable Testing for Existing Category 5 Cable
Installed Category 5 cabling must pass tests for Attenuation, Near-End
Crosstalk (NEXT), and Far-End Crosstalk (FEXT). This cable testing
information is specified in the ANSI/TIA/EIA-TSB-67 standard. Cables
must also pass test parameters for Return Loss and Equal-Level Far-End
Crosstalk (ELFEXT). These tests are specified in the ANSI/TIA/
EIA-TSB-95 Bulletin, “The Additional Transmission Performance
Guidelines for 100 Ohm 4-Pair Category 5 Cabling.”
Note that when testing your cable installation, be sure to include all patch
cables between switches and end devices.
1000BASE-T MDI-X and MDI Port Pinouts
Pin MDI-X Signal Name MDI Signal Name
1 Bi-directional Data Two Plus
(BI_D2+)
Bi-directional Data One Plus
(BI_D1+)
2 Bi-directional Data Two Minus
(BI_D2-)
Bi-directional Data One Minus
(BI_D1-)
3 Bi-directional Data One Plus
(BI_D1+)
Bi-directional Data Two Plus
(BI_D2+)
4 Bi-directional Data Four Plus
(BI_D4+)
Bi-directional Data Three Plus
(BI_D3+)
5 Bi-directional Data Four Minus
(BI_D4-)
Bi-directional Data Three Minus
(BI_D3-)
6 Bi-directional Data One Minus
(BI_D1-)
Bi-directional Data Two Minus
(BI_D2-)
7 Bi-directional Data Three Plus
(BI_D3+)
Bi-directional Data Four Plus
(BI_D4+)
8 Bi-directional Data Three Minus
(BI_D3-)
Bi-directional Data Four Minus
(BI_D4-)