3Com 3C16896 8 slot AC Chassis Electrical Port, Connector, The AUX Cable, AUX Cable Pin-outs

78APPENDIX A: SWITCH 7750 CABLES

Figure 45 The AUX Cable

Enlarged A side DB25 Male 8P8C Plug

Label

Enlarged B side

DB9Male

Enlarged C side

Table 54 lists the AUX cable pin-outs.

Table 54 AUX Cable Pin-outs

RJ-45	Signal	Direction	DB-25	DB-9
1	RTS	--->	4	7
2	DTR	--->	20	4
3	TXD	--->	2	3
4	CD	<---	8	1
5	GND	---	7	5
6	RXD	<---	3	2
7	DSR	<---	6	6
8	CTS	<---	5	8

Electrical Port	Figure 46 illustrates the RJ-45 connector.
Connector	Figure 46 The RJ-45 Connector
	PIN #8
	PIN #1

Table 55 lists RJ-45 MDI port pin-outs.

Table 55 RJ-45 MDI Port Pin-outs

Pinout	10BASE-T/100BASE-TX		1000BASE-T
	Signal	Function	Signal	Function
1	Tx+	Send data	BIDA+	Send data to direction A
2	Tx-	Send data	BIDA-	Receive data from direction A