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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-)
Summary of Contents for 6826MPE
Page 2: ......
Page 20: ...FIGURES xiv ...
Page 40: ...NETWORK PLANNING 2 8 ...
Page 54: ...INSTALLING THE SWITCH 3 14 Stop bit One Data bits 8 Flow control none ...
Page 76: ...CABLES B 8 ...
Page 82: ...ORDERING INFORMATION D 2 ...
Page 88: ...GLOSSARY Glossary 6 ...
Page 92: ...INDEX Index 4 ...
Page 93: ......