Yamaha SRCX, ERCX, DRCX, SRCD user manual UTP STP cable, Straight-through cable, Crossover cable

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 10BASE-T cables, it must have transmission characteristics of category 3 or higher.

■Straight-through cable

Use this cable to connect the HUB to the controller and other party’s device.

Between T-568A				Between T-568A
Signal name	Color	Pin No	Pin No	Color	Signal name
TD+	Green/White	1	1	Green/White	TD+
TD-	Green	2	2	Green	TD-
RD+	Orange/White	3	3	Orange/White	RD+
Not use	Blue	4	4	Blue	not use
Not use	Blue/White	5	5	Blue/White	not use
RD-	Orange	6	6	Orange	RD-
Not use	Brown/White	7	7	Brown/White	Not use
Not use	Brown	8	8	Brown	Not use

*Pins 4, 5, 7, 8 are not used for 10BASE-T.

*Straight-through cable also connects between T-568B and T-568B.

■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 T-568A

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

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

* Pins 4, 5, 7, 8 are not used for 10BASE-T.

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