3Com 3C10220 List the RJ45 input and output plugs per port, RJ-45 Input Plug per Port Switch Side

Selecting the Correct Cables 23

Figure 7 Connecting Other Devices to the Power Source Unit

Switch/Hub

	1
RJ45	2
	3
	4
	5

6

7

8

RJ-IN

data
data	1
data	2
spare	3
spare	4
data	5
spare	6
spare	7
	8

RJ-OUT

1

2

3

4

5

6

7

8

data	DTE/Splitter
data	1
data	2	RJ45
	3
DC +	4
data	5
	6
DC -	7
	8

Table 4 and Table 5 list the RJ45 input and output plugs (per port)

Table 4 RJ-45 Input Plug (per Port): Switch Side

Pin #

Label

Description

1	TX +	Tx data signal to switch or hub
2	TX –	Tx data signal to switch or hub
3	RX +	Rx data signal from switch or hub
4	Spare	Unused
5	Spare	Unused
6	RX –	Rx data signal from switch or hub
7	Spare	Unused
8	Spare	Unused
9	Shield	Connector shielding

Table 5 RJ-45 Output Plug (per Port): DTE (NIC) Side

Pin #

1

2

3

4

5

6

7

8

9

	Label		Description
	P_RX +		Rx Data Signal from DTE
P_RX –		Rx Data Signal from DTE
P_TX +		Tx Data Signal to DTE
–24Vdc_return (+)		Feeding power (+)
–24Vdc_return (+)		Feeding power (+)
P_TX –		Tx Data Signal to DTE
–24Vdc (–)		Feeding power (–)
–24Vdc (–)		Feeding power (–)
Shield		Connector shielding