Appendix B: Ethernet Cables and Connectors
APCD-WM001-1.0
30
Table 10 Ethernet Interface Specifications
The following table and figures show the definitions of wiring for T568A and T568B
connectors, used to make cross-over and straight-through Ethernet cables as found in ANSI/
TIA/EIA-568-B.2 “Balanced Twisted Pair Cabling Components”.
Table 11 Wiring T568A and T568B ends for Ethernet Cables
Straight-through Ethernet cables have T568A wiring at both ends (or T568B at both ends)
while Cross-over cables have T568A at one end and T568B at the other end.
MMT9000 Physical Interface
RJ45 (Ethernet) socket
Wiring standard
TIA - T568A
Pin - Pair/Wire - Color
Pin 1 - 3/a
- Green/White
Pin 2 - 3/b
- Solid Green
Pin 3 - 2/a
- Orange/White
Pin 4 - 1/b
- Solid Blue
Pin 5 - 1/a
- Blue/White
Pin 6 - 2/b
- Solid Orange
Pin 7 - 4/a
- Brown/White
Pin 8 - 4/b
- Solid Brown
TX Data + (Output from MMT9000)
TX Data - (Output from MMT9000)
RX Data + (Input to MMT9000)
Not Used.
Not Used.
RX Data - (Input to MMT9000)
Not Used.
Not Used.
#
Description
T568A
T568B
1
Connectors
RJ-45
RJ-45
2
Wiring standard
T568A
T568B
3
Pair/Wire - Color
3/a – Green/White
3/b – Solid Green
2/a - Orange/White
1/b – Solid Blue
1/a – Blue/White
2/b – Solid Orange
4/a – Brown/White
4/b – Solid Brown
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
(Pins in
bold
are different
from T568A)
Pin 3
Pin 6
Pin 1
Pin 4
Pin 5
Pin 2
Pin 7
Pin 8
