CHAPTER2 Ethernet Unit
2-14-3 UTP (STP) cable
The Ethernet cables are standardized by ANSI/TIA/EIA568A. To avoid miswiring and malfunction, we recommend using cables conforming to this standard. When using
■Straight-through cable
Use this cable to connect the HUB to the controller and other party’s device.
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Signal name | Color | Pin No |
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TD+ | Green/White | 1 |
| 1 | Green/White | TD+ |
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TD- | Green | 2 |
| 2 | Green | TD- |
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RD+ | Orange/White | 3 |
| 3 | Orange/White | RD+ |
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Not use | Blue | 4 |
| 4 | Blue | not use |
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Not use | Blue/White | 5 |
| 5 | Blue/White | not use |
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RD- | Orange | 6 |
| 6 | Orange | RD- |
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Not use | Brown/White | 7 |
| 7 | Brown/White | Not use |
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Not use | Brown | 8 |
| 8 | Brown | Not use |
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*Pins 4, 5, 7, 8 are not used for
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■Crossover cable
Use this cable to connect the controller directly with other party’s device. This cable is also used to connect HUBs in cascade(when HUBs have a cascade port).
Between
Signal name | Color | Pin No |
TD+ | Green/White | 1 |
TD- | Green | 2 |
RD+ | Orange/White | 3 |
Not use | Blue | 4 |
Not use | Blue/White | 5 |
RD- | Orange | 6 |
Not use | Brown/White | 7 |
Not use | Brown | 8 |
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Between T-568B
Pin No | Color | Signal name |
1 | Orange/White | TD+ |
2 | Orange | TD- |
3 | Green/White | RD+ |
4 | Blue | not use |
5 | Blue/White | not use |
6 | Green | RD- |
7 | Brown/White | Not use |
8 | Brown | Not use |
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* Pins 4, 5, 7, 8 are not used for
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